51 results on '"Jonah Maswai"'
Search Results
2. High-risk human papillomavirus genotype distribution among women living with and at risk for HIV in Africa
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Mkunde Chachage, Ajay P. Parikh, Anifrid Mahenge, Emmanuel Bahemana, Jonathan Mnkai, Wilbert Mbuya, Ruby Mcharo, Lucas Maganga, Jaqueline Mwamwaja, Reginald Gervas, Hannah Kibuuka, Jonah Maswai, Valentine Singoei, Michael Iroezindu, Abiola Fasina, Allahna Esber, Nicole Dear, Michelle Imbach, Trevor A. Crowell, Jaclyn Hern, Xiaofang Song, Michael Hoelscher, Christina S. Polyak, Julie A. Ake, and Christof Geldmacher
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Infectious Diseases ,Immunology ,Immunology and Allergy - Published
- 2022
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3. Coronavirus Antibody Responses before COVID-19 Pandemic, Africa and Thailand
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Yifan Li, Mélanie Merbah, Suzanne Wollen-Roberts, Bradley Beckman, Thembi Mdluli, Isabella Swafford, Sandra V. Mayer, Jocelyn King, Courtney Corbitt, Jeffrey R. Currier, Heather Liu, Allahna Esber, Suteeraporn Pinyakorn, Ajay Parikh, Leilani V. Francisco, Nittaya Phanuphak, Jonah Maswai, John Owuoth, Hannah Kibuuka, Michael Iroezindu, Emmanuel Bahemana, Sandhya Vasan, Julie A. Ake, Kayvon Modjarrad, Gregory Gromowski, Dominic Paquin-Proulx, and Morgane Rolland
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Microbiology (medical) ,SARS-CoV-2 ,Epidemiology ,Antibodies, Monoclonal ,COVID-19 ,Nigeria ,Nucleocapsid Proteins ,Antibodies, Viral ,Thailand ,Infectious Diseases ,Immunoglobulin G ,Antibody Formation ,Spike Glycoprotein, Coronavirus ,Africa ,Humans ,Pandemics - Abstract
Prior immune responses to coronaviruses might affect human SARS-CoV-2 response. We screened 2,565 serum and plasma samples collected from 2013 through early 2020, before the COVID-19 pandemic began, from 2,250 persons in 4 countries in Africa (Kenya, Nigeria, Tanzania, and Uganda) and in Thailand, including persons living with HIV-1. We detected IgG responses to SARS-CoV-2 spike (S) subunit 2 protein in 1.8% of participants. Profiling against 23 coronavirus antigens revealed that responses to S, subunit 2, or subunit 1 proteins were significantly more frequent than responses to the receptor-binding domain, S-Trimer, or nucleocapsid proteins (p0.0001). We observed similar responses in persons with or without HIV-1. Among all coronavirus antigens tested, SARS-CoV-2, SARS-CoV-1, and Middle East respiratory syndrome coronavirus antibody responses were much higher in participants from Africa than in participants from Thailand (p0.01). We noted less pronounced differences for endemic coronaviruses. Serosurveys could affect vaccine and monoclonal antibody distribution across global populations.
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- 2022
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4. Perinatal Depressive Symptoms and Viral Non-suppression Among a Prospective Cohort of Pregnant Women Living with HIV in Nigeria, Kenya, Uganda, and Tanzania
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Tessa Concepcion, Jennifer Velloza, Christopher G. Kemp, Amritha Bhat, Ian M. Bennett, Deepa Rao, Christina S. Polyak, Julie A. Ake, Allahna Esber, Nicole Dear, Jonah Maswai, John Owuoth, Valentine Sing’oei, Emmanuel Bahemana, Michael Iroezindu, Hannah Kibuuka, and Pamela Y. Collins
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Social Work ,Social Psychology ,Nigeria ,HIV Infections ,Reproductive health and childbirth ,Perinatal ,Tanzania ,Viral non-suppression ,Cohort Studies ,Pregnancy ,Clinical Research ,Behavioral and Social Science ,Humans ,Uganda ,Prospective Studies ,Pediatric ,Depression ,Prevention ,Public Health, Environmental and Occupational Health ,HIV ,Kenya ,Brain Disorders ,AIDS ,Mental Health ,Good Health and Well Being ,Infectious Diseases ,Africa ,Public Health and Health Services ,HIV/AIDS ,Female ,Pregnant Women ,Public Health ,Infection - Abstract
Depression is common during pregnancy and is associated with reduced adherence to HIV-related care, though little is known about perinatal trajectories of depression and viral suppression among women living with HIV (WLHV) in sub-Saharan Africa. We sought to assess any association between perinatal depressive symptoms and viral non-suppression among WLWH. Depressive symptomatology and viral load data were collected every 6 months from WLWH enrolled in the African Cohort Study (AFRICOS; January 2013–February 2020). Generalized estimating equations modeled associations between depressive symptoms [Center for Epidemiological Studies Depression (CES-D) ≥ 16] and viral non-suppression. Of 1722 WLWH, 248 (14.4%) had at least one pregnancy (291 total) and for 61 pregnancies (21.0%), women reported depressive symptoms (13.4% pre-conception, 7.6% pregnancy, 5.5% one-year postpartum). Depressive symptomatology was associated with increased odds of viral non-suppression (aOR 2.2; 95% CI 1.2–4.0, p = 0.011). Identification and treatment of depression among women with HIV may improve HIV outcomes for mothers.
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- 2022
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5. Routine HIV clinic visit adherence in the African Cohort Study
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Nicole, Dear, Allahna, Esber, Michael, Iroezindu, Emmanuel, Bahemana, Hannah, Kibuuka, Jonah, Maswai, John, Owuoth, Christina S, Polyak, Julie A, Ake, Trevor A, Crowell, and Willyhelmina, Olomi
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Coinfection ,Short Report ,Patient engagement ,HIV ,HIV Infections ,Clinic visits ,RC581-607 ,East Africa ,CD4 Lymphocyte Count ,Cohort Studies ,Care retention ,Virology ,West Africa ,Ambulatory Care ,Humans ,Molecular Medicine ,Pharmacology (medical) ,Immunologic diseases. Allergy - Abstract
Background Retention in clinical care is important for people living with HIV (PLWH). Evidence suggests that missed clinic visits are associated with interruptions in antiretroviral therapy (ART), lower CD4 counts, virologic failure, and overlooked coinfections. We identified factors associated with missed routine clinic visits in the African Cohort Study (AFRICOS). Methods In 2013, AFRICOS began enrolling people with and without HIV in Uganda, Kenya, Tanzania, and Nigeria. At enrollment and every 6 months thereafter, sociodemographic questionnaires are administered and clinical outcomes assessed. Missed clinic visits were measured as the self-reported number of clinic visits missed in the past 6 months and dichotomized into none or one or more visits missed. Logistic regression with generalized estimating equations was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for associations between risk factors and missed visits. Results Between January 2013 and March 2020, 2937 PLWH were enrolled, of whom 2807 (95.6%) had initiated ART and 2771 had complete data available for analyses. Compared to PLWH 50+, missed clinic visits were more common among those 18–29 years (aOR 2.33, 95% CI 1.65–3.29), 30–39 years (aOR 1.59, 95% CI 1.19–2.13), and 40–49 years (aOR 1.42, 95% CI 1.07–1.89). As compared to PLWH on ART for Conclusions Inconsistent clinic attendance is associated with worsened HIV-related outcomes. Strategies to improve visit adherence are especially needed for young PLWH and those with depression.
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- 2022
6. Predictors of All-Cause Mortality Among People With Human Immunodeficiency Virus (HIV) in a Prospective Cohort Study in East Africa and Nigeria
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Hannah, Kibuuka, Ezra, Musingye, Betty, Mwesigwa, Michael, Semwogerere, Michael, Iroezindu, Emmanuel, Bahemana, Jonah, Maswai, John, Owuoth, Allahna, Esber, Nicole, Dear, Trevor A, Crowell, Christina S, Polyak, Julie A, Ake, and Willyhelmina, Olomi
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Cohort Studies ,Male ,Microbiology (medical) ,Infectious Diseases ,Anti-HIV Agents ,HIV ,Humans ,Nigeria ,Female ,HIV Infections ,Prospective Studies ,Tanzania - Abstract
Background Introduction of antiretroviral therapy (ART) has been associated with a decline in human immunodeficiency virus (HIV)-related mortality, although HIV remains a leading cause of death in sub-Saharan Africa. We describe all-cause mortality and its predictors in people living with HIV (PLWH) in the African Cohort Study (AFRICOS). Methods AFRICOS enrolls participants with or without HIV at 12 sites in Kenya, Uganda, Tanzania, and Nigeria. Evaluations every 6 months include sociobehavioral questionnaires, medical history, physical examination, and laboratory tests. Mortality data are collected from medical records and survivor interviews. Multivariable Cox proportional hazards models were used to calculate adjusted hazard ratios (aHRs) and 95% confidence intervals (CIs) for factors associated with mortality. Results From 2013 through 2020, 2724 PLWH completed at least 1 follow-up visit or experienced death. Of these 58.4% were females, 25.8% were aged ≥ 50 years, and 98.3% were ART-experienced. We observed 11.42 deaths per 1000 person-years (95% CI: 9.53–13.68) with causes ascertained in 54% of participants. Deaths were caused by malignancy (28.1%), infections (29.7%), and other non-HIV related conditions. Predictors of mortality included CD4 ≤ 350 cells/µL (aHR 2.01 [95% CI: 1.31–3.08]), a log10copies/mL increase of viral load (aHR 1.36 [95% CI: 1.22–1.51]), recent fever (aHR 1.85[95% CI: 1.22–2.81]), body mass index Conclusions The mortality rate was low in this cohort of mostly virally suppressed PLWH. Patterns of deaths and identified predictors suggest multiple targets for interventions to reduce mortality.
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- 2021
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7. High-risk human papillomavirus (HPV) genotype distribution among women living with and at risk for HIV in the African cohort study
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Mkunde, Chachage, Ajay P, Parikh, Anifrid, Mahenge, Emanuel, Bahemana, Jonathan, Mnkai, Wilbert, Mbuya, Ruby, Mcharo, Lucas, Maganga, Jaqueline, Mwamwaja, Reginald, Gervas, Hannah, Kibuuka, Jonah, Maswai, Valentine, Singoei, Michael, Iroezindu, Abiola, Fasina, Allahna, Esber, Nicole, Dear, Michelle, Imbach, Trevor A, Crowell, Jaclyn, Hern, Xiaofang, Song, Michael, Hoelscher, Christina S, Polyak, Julie A, Ake, and Christof, Geldmacher
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Cervical cancer is a common preventable cancer among African women living with HIV (WLWH). Molecular diagnostics for high-risk human papillomavirus (HR-HPV) genotypes are standard components of cervical cancer screening in resource-rich countries but not in resource-limited settings. We evaluated HR-HPV genotypes among women with and without HIV in four African countries to inform cervical cancer preventive strategies.The African Cohort Study (AFRICOS) enrolled participants with and without HIV at 12 clinics in Tanzania, Kenya, Uganda and Nigeria. Cervical cytobrush specimens from women were genotyped for 14 HR-HPV types using the multiplex Seegene Anyplex real-time PCR assay. Robust Poisson regression was used to estimate relative risks (RRs) and 95% confidence intervals (CIs) for factors associated with HR-HPV in WLWH.From January 2015 to March 2020, 868 WLWH and 134 WLWoH were tested for HR-HPV with prevalence of 50.9% and 38.1%, respectively (p = 0.007). Among WLWH, 844 (97.4%) were ART-experienced and 772 (89.7%) virally suppressed ≦1000 copies/mL. The most frequent HR-HPV types among WLWH were HPV-16 (13.5%), HPV-52 (9.5%) and HPV-35 (9.3%). HR-HPV infection was more common among Tanzanian WLWH (adjusted RR: 1.23, 95% CI: 1.05-1.44, p = 0.012). Also, WLWH with CD4 T cells of200 cell/mm 3 had 1.51-fold increased risk of having HR-HPV (95% CI: 1.23-1.86, p 0.001).HR-HPV was common in WLWH in four African countries, particularly among women with low CD4. Scale up of HPV vaccines and development of vaccines with broader activity against less common HR-HPV types may improve cervical cancer prevention in Africa.
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- 2022
8. Severe acute respiratory syndrome coronavirus-2 antibody prevalence in people with and without HIV in rural Western Kenya, January to March 2020
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Trevor A Crowell, Fred Sawe, Michelle Imbach, Julie A Ake, Ibrahim I. Daud, Leigh Anne Eller, Jonah Maswai, Valentine Singoei, Christina S Polyak, Nicole Dear, and John Owuoth
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medicine.medical_specialty ,2019-20 coronavirus outbreak ,cross-reactivity ,Coronavirus disease 2019 (COVID-19) ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,Immunology ,Human immunodeficiency virus (HIV) ,HIV Infections ,Antibodies, Viral ,medicine.disease_cause ,Asymptomatic ,Internal medicine ,Prevalence ,medicine ,Humans ,Immunology and Allergy ,Antibody prevalence ,Editorial Comments ,Retrospective Studies ,biology ,co-infections ,SARS-CoV-2 ,business.industry ,HIV ,COVID-19 ,Retrospective cohort study ,Kenya ,immunity ,Research Letters ,Infectious Diseases ,Africa ,biology.protein ,Antibody ,medicine.symptom ,business - Abstract
Among 582 participants in Western Kenya who were retrospectively tested from January through March 2020, 19 (3.3%) had detectable SARS-CoV-2 antibodies. The prevalence of detectable SARS-CoV-2 antibodies was similar between participants with and without HIV (3.1% vs. 4.0%, pâ=â0.68). One participant reported a cough in the preceding week but others denied symptoms. These may represent cross-reactivity or asymptomatic infections that predated the first reported COVID-19 cases in Kenya.
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- 2021
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9. Prevalence and predictors of food insecurity among people living with and without HIV in the African Cohort Study
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Jonah Maswai, Nicole Dear, John Owuoth, Christina S Polyak, Hannah Kibuuka, Julie A Ake, Raphael U Nnakwe, Cecilia C Onyenakie, Michael Iroezindu, Trevor A Crowell, Emmanuel Bahemana, and Allahna Esber
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Primary education ,Medicine (miscellaneous) ,Financial independence ,HIV Infections ,Food Supply ,Cohort Studies ,Environmental health ,Prevalence ,Humans ,Medicine ,Uganda ,Aged ,Nutrition and Dietetics ,Food security ,biology ,business.industry ,Public Health, Environmental and Occupational Health ,biology.organism_classification ,Food insecurity ,Food Insecurity ,Cross-Sectional Studies ,Tanzania ,Cohort ,business ,Viral load ,Cohort study - Abstract
Objective:We determined the prevalence and identified predictors of food insecurity in four African countries.Design:Cross-sectional analyses at study enrolment.Setting:From January 2013 to March 2020, people living with HIV (PLWH) and without HIV were enrolled at twelve clinics in Kenya, Uganda, Tanzania and Nigeria.Participants:Participants reporting not having enough food to eat over the past 12 months or receiving Results:1694/3496 participants (48·5 %) reported food insecurity at enrolment, with no difference by HIV status. Food insecurity was more common among older participants (50+ v. 18–24 years aPR 1·35, 95 % CI 1·15, 1·59). Having 2–5 (aPR 1·14, 95 % CI 1·01, 1·30) or >5 dependents (aPR 1·17, 95 % CI 1·02, 1·35), and residing in Kisumu West, Kenya (aPR 1·63, 95 % CI 1·42, 1·87) or Nigeria (aPR 1·20, 95 % CI 1·01, 1·41) was associated with food insecurity. Residing in Tanzania (aPR 0·65, 95 % CI 0·53, 0·80) and increasing education (secondary/above education v. none/some primary education aPR 0·73, 95 % CI 0·66, 0·81) was protective against food insecurity. Antiretroviral therapy (ART)-experienced PLWH were more likely to be food secure irrespective of viral load.Conclusion:Food insecurity was highly prevalent in our cohort though not significantly associated with HIV. Policies aimed at promoting education, elderly care, ART access in PLWH and financial independence could potentially improve food security in Africa.
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- 2021
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10. 134. Predictors of Viral Suppression and Treatment Adherence Among Adolescents and Young Adults Living with HIV Enrolled in the African Cohort Study (AFRICOS)
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Marie A. Brault, Aima A. Ahonkhai, Susannah Colt, Trevor A. Crowell, Allahna L. Esber, Ajay Parikh, Jaclyn Hern, Emma R. Duff, Valentine Sing’oei, John Owuoth, Jonah Maswai, Michael Iroezindu, Emmanuel Bahemana, Hannah Kibuuka, Joseph S. Cavanaugh, Neha Shah, and Julie A. Ake
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Psychiatry and Mental health ,Pediatrics, Perinatology and Child Health ,Public Health, Environmental and Occupational Health - Published
- 2023
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11. Non‐communicable diseases by age strata in people living with and without HIV in four African countries
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David, Chang, Allahna L, Esber, Nicole F, Dear, Michael, Iroezindu, Emmanuel, Bahemana, Hannah, Kibuuka, John, Owuoth, Jonah, Maswai, Trevor A, Crowell, Christina S, Polyak, Joseph S, Cavanaugh, Julie A, Ake, and Catherine, Godfrey
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Male ,Public Health, Environmental and Occupational Health ,HIV Infections ,Cohort Studies ,Glucose ,Infectious Diseases ,Hypertension ,Diabetes Mellitus ,Prevalence ,Humans ,Hypoglycemic Agents ,Female ,Uganda ,Obesity ,Renal Insufficiency ,Noncommunicable Diseases - Abstract
Non-communicable diseases (NCDs) are an important driver of morbidity among ageing people living with HIV (PLWH). We examined the composite role of age and HIV status on NCDs in people living with and without HIV.The African Cohort Study (AFRICOS) prospectively enrols participants aged ≥15 years with and without HIV at 12 sites in Kenya, Tanzania, Uganda and Nigeria. From 21 January 2013 to 1 September 2021, we assessed participants for renal insufficiency (estimated glomerular filtration rate60 ml/minute/1.73 mOf 3761 participants with age data, 557 (14.8%) were age ≥50, 2188 (58.2%) were females and 3099 (82.4%) were PLWH. At enrolment, the prevalence of elevated BP, dysglycemia, renal insufficiency and obesity were n = 128 (26.9%), n = 75 (15.8%), n = 8 (1.7%) and n = 40 (8.4%), respectively, for PLWH ≥50. Compared to people without HIV age50, PLWH age ≥50 had increased adjusted odds of having DM (OR: 2.78, 95% CI: 1.49-5.16), dysglycemia (OR: 1.98, 95% CI: 1.51-2.61) and renal insufficiency (OR: 6.20, 95% CI: 2.31-16.66). There were significant differences by study site, specifically, participants from Nigeria had the highest odds of elevated BP, dysglycemia and renal insufficiency as compared to Uganda.There was a high burden of NCDs in this African cohort with differences by geographic region. In order to promote healthy ageing with HIV, screening and treatment for common NCDs should be incorporated into routine HIV care with attention paid to geographic heterogeneity to better allocate resources.
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- 2022
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12. Ophthalmic Disease Prevalence and Incidence among People Living with Human Immunodeficiency Virus in the AFRICOS Study
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Hannah Kibuuka, Morgan M Harvey, Allahna Esber, Julie A Ake, John Owuoth, Nicole Dear, Michael Iroezindu, Christina S Polyak, Grant A. Justin, Jonah Maswai, Emmanuel Bahemana, Brian K. Agan, Trevor A Crowell, and Africos study Team
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Adult ,Male ,Pediatrics ,medicine.medical_specialty ,Adolescent ,Eye Diseases ,Human immunodeficiency virus (HIV) ,MEDLINE ,HIV Infections ,medicine.disease_cause ,Article ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Acquired immunodeficiency syndrome (AIDS) ,parasitic diseases ,Prevalence ,medicine ,Humans ,Prospective Studies ,030304 developmental biology ,0303 health sciences ,business.industry ,Incidence ,Incidence (epidemiology) ,HIV ,Africa, Eastern ,Middle Aged ,medicine.disease ,Antiretroviral therapy ,Ophthalmology ,030221 ophthalmology & optometry ,Female ,Ophthalmic disease ,business - Abstract
Ophthalmic disease in people living with HIV (PLWH) and at-risk controls in Sub-Saharan Africa was evaluated. PLWH were more likely to have ophthalmic disease at enrollment, but there was no difference in incidence once enrolled.
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- 2021
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13. Transient Reductions in Human Immunodeficiency Virus (HIV) Clinic Attendance and Food Security During the Coronavirus Disease 2019 (COVID-19) Pandemic for People Living With HIV in 4 African Countries
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John Owuoth, Jonah Maswai, Ajay Parikh, Nicole Dear, Trevor A Crowell, Emma Duff, Hannah Kibuuka, Allahna Esber, Christina S Polyak, Julie A Ake, Michael Iroezindu, and Emmanuel Bahemana
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Microbiology (medical) ,medicine.medical_specialty ,COVID-19 Pandemic ,Activities of daily living ,Coronavirus disease 2019 (COVID-19) ,Human immunodeficiency virus (HIV) ,HIV Infections ,medicine.disease_cause ,03 medical and health sciences ,0302 clinical medicine ,Environmental health ,West Africa ,Pandemic ,medicine ,Humans ,030212 general & internal medicine ,Viral suppression ,Pandemics ,Food security ,SARS-CoV-2 ,business.industry ,Brief Report ,Public health ,Attendance ,COVID-19 ,HIV ,East Africa ,AcademicSubjects/MED00290 ,Infectious Diseases ,Food Security ,business ,030217 neurology & neurosurgery - Abstract
The coronavirus disease 2019 (COVID-19) pandemic and associated public health responses have disrupted daily living activities with economic and health consequences globally. We observed transient decreases in human immunodeficiency virus (HIV) clinic visit adherence and food security among persons living with HIV early in the pandemic, and an increase in viral suppression later in the pandemic.
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- 2021
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14. Factors associated with sexually transmitted infections among care-seeking adults in the African Cohort Study
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Hannah Kibuuka, John Owuoth, Julie A Ake, Allahna Esber, Michael Iroezindu, Francis Kiweewa, Domonique Reed, Nicole Dear, Joshua Tunnage, Trevor A Crowell, Michael Semwogerere, Emmanuel Bahemana, Christina S Polyak, and Jonah Maswai
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Adult ,Vaginal discharge ,medicine.medical_specialty ,Adolescent ,Sexually Transmitted Diseases ,Nigeria ,HIV Infections ,Tanzania ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Epidemiology ,Prevalence ,Sexually transmitted infections ,Humans ,Medicine ,Uganda ,Prospective Studies ,030212 general & internal medicine ,Prospective cohort study ,Depression (differential diagnoses) ,030505 public health ,Sub-Saharan Africa ,business.industry ,Public Health, Environmental and Occupational Health ,Odds ratio ,Kenya ,People living with HIV ,Genital ulcer ,Female ,medicine.symptom ,Biostatistics ,Public aspects of medicine ,RA1-1270 ,0305 other medical science ,business ,Research Article ,Demography ,Cohort study - Abstract
Objectives Sexually transmitted infections (STIs) are a major cause of morbidity. Understanding drivers of transmission can inform effective prevention programs. We describe STI prevalence and identify factors associated with STIs in four African countries. Methods The African Cohort Study is an ongoing, prospective cohort in Kenya, Nigeria, Tanzania and Uganda. At enrollment, a physical exam was conducted and STI diagnosis made by a clinician using a syndromic management approach. Multivariable logistic regression was used to estimate adjusted odds ratios (aORs) and 95% confidence intervals (95% CIs) for factors associated with an STI diagnosis. Results As of June 2020, 3544 participants were enrolled. STI prevalence was 7.7% and did not differ by HIV status (p = 0.30). Prevalence differed by syndrome (3.5% vaginal discharge, 1.5% genital ulcer, 2.1% lower abdominal pain, 0.2% inguinal bubo). The odds of having an STI were higher at all sites compared to Kisumu West, Kenya, and among those with a primary level education or below compared to those with secondary or higher (aOR: 1.77; 95% CI: 1.32–2.38). The odds of an STI diagnosis was higher among participants 18–29 years (aOR: 2.29; 95% CI: 1.35–3.87), females (aOR: 2.64; 95% CI: 1.94–3.59), and those with depression (aOR: 1.78; 95% CI: 1.32–2.38). Among PLWH, similar factors were independently associated with an STI diagnosis. Viral suppression was protective against STIs (aOR: 2.05; 95% CI: 1.32–3.20). Conclusions Prevalence of STIs varied by site with young people and females most at risk for STIs. Mental health is a potential target area for intervention.
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- 2021
15. The pregnancy factor: the prevalence of depression among women living with HIV enrolled in the African Cohort Study (AFRICOS) by pregnancy status
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Michael Iroezindu, Emmanuel Bahemana, John Owuoth, Jonah Maswai, Hannah Kibuuka, Patrick W. Hickey, Nicole Dear, Allahna Esber, Milissa U Jones, Julie A Ake, Christina S Polyak, and Trevor A Crowell
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Pregnancy ,medicine.medical_specialty ,030505 public health ,business.industry ,Obstetrics ,Obstetrics and Gynecology ,Odds ratio ,medicine.disease ,Logistic regression ,03 medical and health sciences ,Psychiatry and Mental health ,0302 clinical medicine ,Epidemiology ,medicine ,030212 general & internal medicine ,0305 other medical science ,business ,Generalized estimating equation ,Depression (differential diagnoses) ,Postpartum period ,Cohort study - Abstract
Among Sub-Saharan African women living with HIV (WLWH), pregnancy creates unique stressors that may cause depression. We describe the prevalence of depression among WLWH enrolled in the African Cohort Study (AFRICOS) by pregnancy status and describe factors associated with depression. WLWH < 45 years of age underwent six-monthly visits with depression diagnosed using the Center for Epidemiological Studies-Depression scale. Visits were categorized as “pregnant;” “postpartum” (the first visit made after the last pregnancy visit), and “non-pregnant.” The prevalence of depression was calculated for each visit type and compared using prevalence odds ratios (POR) with 95% confidence intervals (CI). Logistic regression with generalized estimating equations was used to evaluate sociodemographic factors associated with depression. From January 2013 to March 1, 2020, 1333 WLWH were enrolled, and 214 had pregnancies during follow-up. As compared to the prevalence of depression during “non-pregnant” visits (9.1%), depression was less common at “pregnant” (6.3%; POR = 0.68 [CI: 0.42, 1.09]) and “postpartum” (3.4%; POR = 0.36 [CI: 0.17, 0.76]) visits. When controlling for other factors, the visit category was not independently associated with depression. Visit number, study site, employment status, and food security were independently associated with decreased odds of depression. We observed a lower prevalence of depression during pregnancy and the postpartum period than has been previously described among WLWH during similar time points. We observed protective factors against depression which highlight the impact that holistic and consistent health care at HIV-centered clinics may have on the well-being of WLWH in AFRICOS.
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- 2021
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16. Pretreatment and Acquired Antiretroviral Drug Resistance Among Persons Living With HIV in Four African Countries
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Trevor A Crowell, Julie A Ake, Emmanuel Bahemana, John Owuoth, Jennifer A. Malia, Jonah Maswai, Michael Iroezindu, Christina S Polyak, Joanna Freeman, Sheila A. Peel, Ajay Parikh, Peter Coakley, Sodsai Tovanabutra, Alex Kasembeli, Francis Kiweewa, Linda L. Jagodzinski, Leigh Ann Eller, Allahna Esber, Samoel Khamadi, Nicole Dear, and Brook A Danboise
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Adult ,0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,Efavirenz ,Anti-HIV Agents ,HIV Infections ,Drug resistance ,Cohort Studies ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Public health surveillance ,Interquartile range ,Internal medicine ,Drug Resistance, Viral ,medicine ,Humans ,Uganda ,030212 general & internal medicine ,Online Only Articles ,Africa South of the Sahara ,drug resistance ,business.industry ,virus diseases ,Lamivudine ,acquired immunodeficiency syndrome ,Viral Load ,030112 virology ,public health surveillance ,Reverse transcriptase ,HIV/AIDS Collection ,AcademicSubjects/MED00290 ,Infectious Diseases ,chemistry ,Mutation ,HIV-1 ,business ,HIV drug resistance ,Cohort study ,medicine.drug - Abstract
Background Emerging HIV drug resistance (HIVDR) could jeopardize the success of standardized HIV management protocols in resource-limited settings. We characterized HIVDR among antiretroviral therapy (ART)-naive and experienced participants in the African Cohort Study (AFRICOS). Methods From January 2013 to April 2019, adults with HIV-1 RNA >1000 copies/mL underwent ART history review and HIVDR testing upon enrollment at 12 clinics in Uganda, Kenya, Tanzania, and Nigeria. We calculated resistance scores for specific drugs and tallied major mutations to non-nucleoside reverse transcriptase inhibitors (NNRTIs), nucleoside reverse transcriptase inhibitors (NRTIs), and protease inhibitors (PIs) using Stanford HIVDB 8.8 and SmartGene IDNS software. For ART-naive participants, World Health Organization surveillance drug resistance mutations (SDRMs) were noted. Results HIVDR testing was performed on 972 participants with median age 35.7 (interquartile range [IQR] 29.7–42.7) years and median CD4 295 (IQR 148–478) cells/mm3. Among 801 ART-naive participants, the prevalence of SDRMs was 11.0%, NNRTI mutations 8.2%, NRTI mutations 4.7%, and PI mutations 0.4%. Among 171 viremic ART-experienced participants, NNRTI mutation prevalence was 83.6%, NRTI 67.8%, and PI 1.8%. There were 90 ART-experienced participants with resistance to both efavirenz and lamivudine, 33 (36.7%) of whom were still prescribed these drugs. There were 10 with resistance to both tenofovir and lamivudine, 8 (80.0%) of whom were prescribed these drugs. Conclusions Participants on failing ART regimens had a high burden of HIVDR that potentially limited the efficacy of standardized first- and second-line regimens. Management strategies that emphasize adherence counseling while delaying ART switch may promote drug resistance and should be reconsidered., From 2013–2019, pretreatment drug resistance has increased in Uganda, Kenya, Tanzania, and Nigeria. Resistance was observed in most treatment-experienced participants on failing regimens, some of whom had mutations that could compromise standard first- and second-line regimen efficacy.
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- 2020
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17. Frequency and Predictors of HIV-Related Cognitive Impairment in East Africa: The Africa Cohort Study (AFRICOS)
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John Owuoth, Jonah Maswai, Francis Kiweewa, Christina S Polyak, Rither Langat, Shayanne Martin, Katherine L. Possin, Isabel E. Allen, Robert H. Paul, Benedetta Milanini, Allahna Esber, Emmanuel Bahemana, Alice Nambuya, Victor Valcour, and Julie A Ake
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Adult ,Male ,medicine.medical_specialty ,Multivariate analysis ,Adolescent ,Anti-HIV Agents ,Cross-sectional study ,HIV Infections ,Tanzania ,Article ,Cohort Studies ,Young Adult ,Acquired immunodeficiency syndrome (AIDS) ,Internal medicine ,Odds Ratio ,medicine ,Humans ,Cognitive Dysfunction ,Uganda ,Pharmacology (medical) ,Young adult ,Aged ,Aged, 80 and over ,Analysis of Variance ,biology ,business.industry ,Neuropsychology ,Odds ratio ,Middle Aged ,biology.organism_classification ,medicine.disease ,Kenya ,CD4 Lymphocyte Count ,Cross-Sectional Studies ,Logistic Models ,Infectious Diseases ,Multivariate Analysis ,Linear Models ,Female ,business ,Cohort study - Abstract
BACKGROUND Medication adherence is a critical issue in achieving viral suppression targets, particularly in resource-limited countries. As HIV-related cognitive impairment (CI) impacts adherence, we examined frequency and predictors of CI in the African Cohort Study. SETTING Cross-sectional examination of enrollment data from President's Emergency Plan for AIDS Relief supported clinic sites. METHODS In a 30-minute cognitive assessment, CI was defined as -1SD on 2 tests or -2SD on one, as compared with 429 controls. We performed univariable and multivariable logistic and linear models examining clinical and demographic factors associated with CI and global neuropsychological performance (NP-6). RESULTS Two thousand four hundred seventy-two HIV+ participants from Kenya (n = 1503), Tanzania (n = 469), and Uganda (n = 500). The mean (SD) age was 39.7 (10.7) years, and 1452 (59%) were women. The majority reported completing or partially completing primary school (n = 1584, 64%). Mean (SD) current and nadir CD4 count were 463 (249) and 204 (221) cells/mm, respectively; 1689 (68%) were on combination antiretroviral therapy. Nine hundred thirty-nine (38%) HIV+ versus 113 (26%) HIV- individuals showed CI: (P < 0.001). We found significant effects of literacy [odds ratio (OR): 0.3; 95% CI: 0.2 to 0.4; P < 0.001] and World Health Organization stage 4 (OR: 1.5; 95% CI: 1.0 to 2.q; P = 0.046) on CI. Tanzanians (OR: 3.2; 95% CI: 2.4 to 4.3; P < 0.001) and Kenyans (OR: 2.0; 95% CI: 1.6 to 2.6; P < 0.001) had higher risk of CI compared with Ugandans. Results were relatively unchanged in predictive models of NP-6, with the only difference being an additional significant effect of current CD4 cell count (coeff: 0.0; 95% CI: 0.0 to 0.0; P = 0.005). CONCLUSIONS Literacy, country, World Health Organization stage, and current CD4 cell count were associated with increased risk of cognitive dysfunction. Our findings help optimize care practices in Africa, illustrating the importance of strategies for early and effective viral-immunological control.
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- 2020
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18. Transitioning women to first-line preferred TLD regimen is lagging in Sub-Saharan Africa
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Neha Shah, Allahna Esber, J Sean Cavanaugh, Patricia Agaba, Nicole Dear, Michael Iroezindu, Emmanuel Bahemana, Hannah Kibuuka, John Owuoth, Jonah Maswai, Valentine Singoei, Trevor A Crowell, Christina S Polyak, and Julie A Ake
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Microbiology (medical) ,Infectious Diseases - Abstract
Introduction In 2019, the World Health Organization (WHO) recommended tenofovir disoproxil fumarate-lamivudine-dolutegravir (TLD) as the preferred first line regimen for adults and adolescents regardless of childbearing status. Nevertheless, final eligibility is determined by local policies which may vary from WHO recommendations. We examined TLD transition by gender across five PEPFAR-supported HIV care programs in sub-Saharan Africa. Methods The African Cohort Study (AFRICOS) enrolls people living with HIV (PLWH) engaged in care in Uganda, Kenya (South Rift Valley and Kisumu West), Tanzania and Nigeria. PLWH with at least one study visit after the country introduced TLD were included. We generated Kaplan-Meier (KM) curves to compare TLD transition by gender from 1) time countries’ introduction of TLD and 2) time of TLD eligibility according to local policies. Results Among 2.476 participants enrolled through September 2021 at 4 sites in sub-Saharan Africa and eligible to transition to TLD, fewer women (68%) compared to men (80%, p Conclusions Despite TLD being the WHO’s preferred regimen since 2019, transition of women to potentially lifesaving TLD has been slower than men at certain clinical sites even after accounting for local eligibility criteria.
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- 2022
19. Weight gain during the dolutegravir transition in the African Cohort Study
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Allahna L, Esber, David, Chang, Michael, Iroezindu, Emmanuel, Bahemana, Hannah, Kibuuka, John, Owuoth, Valentine, Singoei, Jonah, Maswai, Nicole F, Dear, Trevor A, Crowell, Christina S, Polyak, and Julie A, Ake
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Adult ,Anti-HIV Agents ,Pyridones ,Public Health, Environmental and Occupational Health ,HIV Infections ,Weight Gain ,Kenya ,Piperazines ,Cohort Studies ,Infectious Diseases ,Lamivudine ,Oxazines ,Humans ,Tenofovir ,Heterocyclic Compounds, 3-Ring - Abstract
Dolutegravir (DTG) has become a preferred component of first-line antiretroviral therapy (ART) in many settings but may be associated with excess weight gain. We evaluated changes in weight and body mass index (BMI) after switch to single-tablet tenofovir/lamivudine/dolutegravir (TLD) by people living with HIV (PLWH) in four African countries.The African Cohort Study (AFRICOS) prospectively follows adults with and without HIV in Kenya, Uganda, Tanzania and Nigeria. Demographics, ART regimen, weight, BMI and waist-to-hip ratio were collected every 6 months. Multivariable Cox proportional hazards modelling was used to estimate hazard ratios and 95% confidence intervals (CIs) for factors associated with developing a BMI ≥25 kg/mFrom 23 January 2013 to 1 December 2020, 2950 PLWH were enrolled in AFRICOS and 1474 transitioned to TLD. In adjusted models, PLWH on TLD had 1.77 times the hazard of developing a high BMI (95% CI: 1.22-2.55) compared to PLWH on non-TLD ART. Examining change in weight among all PLWH on ART, participants on TLD gained an average of 0.68 kg (95% CI: 0.32-1.04) more than PLWH on other regimens after adjusting for duration on ART, sex, age, study site and CD4 nadir. Among participants who switched to TLD, the average change in weight prior to TLD switch was 0.35 kg/year (95% CI: 0.25-0.46) and average change in weight was 1.46 kg/year (95% CI: 1.18-1.75) in the year following transition to TLD after adjustment for confounders.Elevated BMI and weight gain among PLWH on TLD are concerning safety signals. Implications for the development of metabolic comorbidities should be monitored, particularly if annual weight gain persists during continued follow-up after transitioning to TLD.
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- 2022
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20. Non-communicable diseases in older people living with HIV in four African countries: a cohort study
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David Chang, Allahna Esber, Nicole Dear, Michael Iroezindu, Emmanuel Bahemana, Hannah Kibuuka, John Owuoth, Jonah Maswai, Trevor Crowell, Christina Polyak, Joseph S Cavanaugh, Julie A Ake, and Catherine Godfrey
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Adult ,Male ,Epidemiology ,Immunology ,HIV Infections ,Cohort Studies ,Infectious Diseases ,Glucose ,Risk Factors ,Virology ,Hyperglycemia ,Hypertension ,Diabetes Mellitus ,Prevalence ,Humans ,Female ,Uganda ,Obesity ,Prospective Studies ,Renal Insufficiency ,Noncommunicable Diseases ,Aged - Abstract
The lifespan of people living with HIV is increasing, and non-communicable diseases (NCDs) are becoming an important driver of morbidity in this population. We examined the prevalence of NCDs in older people with HIV and factors associated with development of NCDs.The African Cohort Study is a prospective cohort enrolling adults with and without HIV at 12 sites in Kenya, Tanzania, Uganda, and Nigeria. Using data collected from Jan 21, 2013 to June 30, 2021, we assessed the prevalence and odds of NCDs, including renal insufficiency (estimated glomerular filtration rate [GFR]60 mL/min/1·73 m²), elevated blood pressure (any systolic blood pressure139 mm Hg or diastolic BP89 mm Hg), obesity (body mass index30), diabetes (fasting glucose ≥126 mg/dL or receiving medication for diabetes) or hyperglycaemia (fasting glucose ≥99 mg/dL or non-fasting ≥199 mg/dL). Diabetes and hyperglycaemia were collectively evaluated as dysglycaemia. We used multivariable logistic regression with generalised estimating equations to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for factors associated with NCDs. Diabetes and hyperglycaemia models were adjusted for potential confounders including study site and sex. Renal insufficiency models had similar adjustments with the addition of elevated blood pressure and hyperglycaemia.Of 3434 participants, 2003 (59·3%) were female and 1431 (40·7%) were male, and 2949 (85·9%) were living with HIV. Of people living with HIV, 2188 (74·2%) were younger than 50 years and 761 (25·8%) were aged 50 years or older. Among people living with HIV aged 50 or older, 27·5% (n=209 had elevated blood pressure, 13·4% (102) had dysglycaemia, 4·3% (33) had renal insufficiency, and 11·7% (89) had obesity at last visit. Compared with people without HIV under 50, people living with HIV aged 50 or older had increased adjusted odds of having diabetes (5·29, 95% CI 2·61-10·70), hyperglycaemia (1·86, 1·38-2·50), and renal insufficiency (6·37, 2·38-17·1). We found no differences between individuals aged 50 years or older with and without HIV for diabetes, hyperglycaemia, and renal insufficiency.There was a high burden of NCDs in this cohort. HIV status was not associated with NCD prevalence, although the study was probably underpowered to detect such an association. Screening and treatment for common NCDs, such as raised blood pressure and dysglycaemia, should be considered as part of HIV integrated care. Such an approach might help to prevent other NCDs, such as renal insufficiency, and improve the span of healthy life.PEPFAR via cooperative agreements between HJF and the US Department of Defense.
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- 2022
21. Brief Report: Virologic Impact of the Dolutegravir Transition: Prospective Results From the Multinational African Cohort Study
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Allahna, Esber, Nicole, Dear, Neha, Shah, Hannah, Kibuuka, Jonah, Maswai, John, Owuoth, Valentine, Singoei, Emmanuel, Bahemana, Michael, Iroezindu, Trevor A, Crowell, Christina S, Polyak, Joseph S, Cavanaugh, and Julie A, Ake
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Cohort Studies ,Anti-Retroviral Agents ,Anti-HIV Agents ,Lamivudine ,Pyridones ,Oxazines ,Humans ,HIV Infections ,Uganda ,Prospective Studies ,Viral Load ,Tenofovir ,Heterocyclic Compounds, 3-Ring - Abstract
The real-world impact on viral suppression of switching from non-dolutegravir-based therapy to tenofovir/lamivudine/dolutegravir (TLD) is not thoroughly characterized in Africa. We described the virologic consequences of switching regimens in the African Cohort Study (AFRICOS), an observational cohort in Nigeria, Kenya, Uganda, and Tanzania.Among antiretroviral-experienced people living with HIV (PLWH) in AFRICOS, we compared viral load (VL) nonsuppression (VL ≥ 1000 copies/mL) among those who switched with those who never switched to TLD, restricting to participants who had at least 1 visit with a recorded VL after the countrywide rollout of TLD. We calculated Kaplan-Meier curves and conducted Cox proportional hazards modeling to estimate adjusted hazard ratios and 95% confidence intervals for factors potentially associated with nonsuppression.As of September 1, 2021, there were 3108 PLWH enrolled. Among 1576 participants who switched to TLD, 1486 (94.3%) remained suppressed after transition, 12 (0.8%) remained unsuppressed, and 38 (2.4%) lost suppression, compared with 652 (82.1%), 75 (9.4%), and 46 (5.8%), respectively, of 797 participants who did not switch ( P0.001). After adjustment for sex, age, study site, and self-reported antiretroviral therapy adherence, virally suppressed participants who did not switch to TLD had significantly higher rates of losing viral suppression compared with those who switched (adjusted hazard ratio: 4.26; 95% confidence interval: 2.72 to 6.68).PLWH transitioning to TLD had higher rates of viral suppression compared with those who remained on other regimens. Even within a highly suppressed population, TLD transition provided significant benefits for achieving or maintaining viral suppression.
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- 2022
22. Clinical factors and outcomes associated with immune non-response among virally suppressed adults with HIV from Africa and the United States
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Xun Wang, John Owuoth, Michael Iroezindu, Allahna Esber, Jason F. Okulicz, Anuradha Ganesan, Lucas Maganga, Julie A Ake, Christina S Polyak, Trevor A Crowell, Adi Noiman, Francis Kiweewa, Yakubu Adamu, Tahaniyat Lalani, Jonah Maswai, Rhonda E Colombo, Ryan C. Maves, Emmanuel Bahemana, and Brian K. Agan
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Adult ,Male ,Multidisciplinary ,business.industry ,Science ,Human immunodeficiency virus (HIV) ,HIV Infections ,medicine.disease_cause ,Predictive markers ,Article ,United States ,Text mining ,Immune system ,Anti-Retroviral Agents ,Immunology ,Africa ,medicine ,Humans ,Medicine ,Female ,Longitudinal Studies ,business - Abstract
Background: A significant minority of people living with HIV (PLWH) achieve viral suppression (VS) on antiretroviral therapy (ART) but do not regain healthy CD4 counts. Clinical factors affecting this immune non-response (INR) and its effect on incident serious non-AIDS events (SNAEs) have been challenging to understand due to confounders that are difficult to control in many study settings. Setting: The U.S. Military HIV Natural History Study (NHS) and African Cohort Study (AFRICOS). Methods: PLWH with sustained VS (Results: INR prevalence was 10.8% and 25.8% in NHS and AFRICOS, respectively. Higher CD4 nadir was associated with decreased odds of INR (aOR=0.31 [95% CI: 0.26, 0.37] and aOR=0.50 [95% CI: 0.43, 0.58] per 100 cells/µl in NHS and AFRICOS, respectively). After adjustment, INR was associated with a 61% increase in relative risk of SNAE [95% CI: 1.12, 2.33]. Probability of "SNAE-free" survival at 15 years since sustained VS was approximately 20% lower comparing those with and without INR; nearly equal to the differences observed by 15-year age groups. Conclusion: CD4 monitoring before and after VS is achieved can help identify PLWH at risk for INR. INR may be a useful clinical indicator of future risk for SNAEs.
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- 2022
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23. Assessment of tuberculosis disease activity in people infected with
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Inge, Kroidl, Mohamed I M, Ahmed, Sacha, Horn, Christina, Polyak, Allahna, Esber, Ajay, Parikh, Leigh Anne, Eller, Hannah, Kibuuka, Michael, Semwogerere, Betty, Mwesigwa, Prossy, Naluyima, Joy Mary, Kasumba, Jonah, Maswai, John, Owuoth, Valentine, Sing'oei, Eric, Rono, Rebecca, Loose, Michael, Hoelscher, Julie, Ake, and Christof, Geldmacher
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Early detection of asymptomatic incipient tuberculosis (TB) could improve clinical outcomes and reduce the spread ofBetween Jan 1, 2013 and Aug 31, 2018, 2014 people living with HIV were screened annually for active TB using the Xpert MTB/RIF diagnostic assay in 11 clinics in Kenya, Tanzania, Uganda, and Nigeria. Longitudinal blood mononuclear cell samples from 46 selected patients with active and recurrent tuberculosis, latent infection, or incipient TB were further analysed forIn most cases, progression to active TB disease started 6-12 months before diagnosis by clinical symptoms and sputum occurrence of bacilli. Blood biomarkers could facilitate early detection of incipient TB, improve clinical outcomes, and reduce the transmission ofThis work was supported by the President's Emergency Plan for AIDS Relief via a cooperative agreement between the Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., and the U.S. Department of Defense [W81XWH-11-2-0174, W81XWH-18-2-0040] and by the Bundesministerium für Bildung und Forschung (BmBF) through funding of the Deutsches Zentrum für Infektionsforschung (DZIF, TTU-TB personalized medicine TTU 02_813).
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- 2021
24. Perceived satisfaction with HIV care and its association with adherence to antiretroviral therapy and viral suppression in the African Cohort Study
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John Owuoth, Anange Lwilla, Nicole Dear, Samoel Khamadi, Trevor A Crowell, Emmanuel Bahemana, Christina S Polyak, Lucas Maganga, Domonique Reed, Julie A Ake, Allahna Esber, Jonah Maswai, Michael Iroezindu, Ajay Parikh, Nancy Somi, and Hannah Kibuuka
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medicine.medical_specialty ,Anti-HIV Agents ,HIV Infections ,Personal Satisfaction ,Medication Adherence ,Cohort Studies ,symbols.namesake ,Patient satisfaction ,Acquired immunodeficiency syndrome (AIDS) ,Virology ,Health care ,Humans ,Medicine ,Viral load ,Pharmacology (medical) ,Poisson regression ,business.industry ,Research ,Quality of care ,RC581-607 ,medicine.disease ,Confidence interval ,Family medicine ,symbols ,HIV/AIDS ,Molecular Medicine ,Observational study ,Immunologic diseases. Allergy ,business ,Cohort study - Abstract
Background Increased availability of HIV care over the past decade has dramatically reduced morbidity and mortality among people living with HIV (PLWH) in sub-Saharan Africa. However, perceived and experienced barriers to care, including dissatisfaction with services, may impact adherence and viral suppression. We examined the associations between satisfaction with HIV care and antiretroviral therapy (ART) adherence and viral load suppression. Methods The African Cohort Study (AFRICOS) is a prospective observational study conducted at PEPFAR-supported clinics in four African countries. At enrollment and twice-yearly study visits, participants received a clinical assessment and a socio-behavioral questionnaire was administered. Participants were classified as dissatisfied with care if they reported dissatisfaction with any of the following: waiting time, health care worker skills, health care worker attitudes, quality of clinic building, or overall quality of care received. Robust Poisson regression was used to estimate prevalence ratios and 95% confidence intervals (CIs) for associations between satisfaction with care and ART adherence and between satisfaction with care and viral suppression (viral load Results As of 1 March 2020, 2928 PLWH were enrolled and 2311 had a year of follow-up visits. At the first annual follow-up visit, 2309 participants responded to questions regarding satisfaction with quality of care, and 2069 (89.6%) reported satisfaction with care. Dissatisfaction with waiting time was reported by 177 (7.6%), building quality by 59 (2.6%), overall quality of care by 18 (0.8%), health care worker attitudes by 16 (0.7%), and health care worker skills by 15 (0.7%). After adjusting for age and site, there was no significant difference in viral suppression between those who were satisfied with care and those who were dissatisfied (aPR: 1.03, 95% CI 0.97–1.09). Satisfaction with HIV care was moderately associated with ART adherence among AFRICOS participants (aPR: 1.09; 95% CI 1.00–1.16). Conclusions While patient satisfaction in AFRICOS was high and the association between perceived quality of care and adherence to ART was marginal, we did identify potential target areas for HIV care improvement, including reducing clinic waiting times.
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- 2021
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25. Temporal trends in self-reported HIV stigma and association with adherence and viral suppression in the African Cohort Study
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Julie A Ake, Eniko Akom, Christina S Polyak, Hannah Kibuuka, Emmanuel Bahemana, Nicole Dear, John Owouth, Trevor A Crowell, Jonah Maswai, Michael Iroezindu, Allahna Esber, and Domonique Reed
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Health (social science) ,Social Psychology ,Anti-HIV Agents ,Social Stigma ,Stigma (botany) ,HIV Infections ,Odds ,Medication Adherence ,Cohort Studies ,Medicine ,Humans ,Viral suppression ,Hiv stigma ,biology ,business.industry ,Public Health, Environmental and Occupational Health ,Viral Load ,biology.organism_classification ,Kenya ,Confidence interval ,Tanzania ,Self Report ,business ,Viral load ,Cohort study ,Demography - Abstract
HIV stigma is a major barrier to HIV care and treatment among people living with HIV (PLWH). Evidence suggests that expansion in antiretroviral therapy (ART) may reduce stigma. However, there are limited longitudinal studies examining temporal trends in HIV stigma in sub-Saharan Africa in the Undetectable = Untransmittable (U = U) era. We longitudinally assessed temporal trends in self-reported experienced stigma and the association of experienced stigma with ART adherence and viral suppression among PLWH enrolled in the African Cohort Study (AFRICOS). AFRICOS is an ongoing cohort study enrolling PLWH in Uganda, Kenya, Tanzania, and Nigeria. As of 1 March 2020, 2937 PLWH enrolled in AFRICOS and had available data. In 2013, 22% of participants reported stigma at the enrollment visit and by 2018 the prevalence decreased to 1% overall and was below 2% for all countries. However, there was not a statistically significant change in stigma prevalence in our longitudinal models. In adjusted models, experiencing stigma was associated with a 0.67 decreased odds of ART Adherence (95% confidence interval (CI): 0.56-0.80) and a 0.64 decreased odds of viral suppression (95% CI: 0.73-0.99). HIV-associated stigma was associated with poor self-reported ART adherence and unsuppressed viral load.
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- 2021
26. Monocyte activation, HIV, and cognitive performance in East Africa
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Leigh Anne Eller, Brandon Imp, Julie A Ake, Hannah Kibuuka, Omalla Allan Olwenyi, Eric Rono, Michael A. Eller, Victor Valcour, Francis Kiweewa, L Arnoldo Muñoz-Nevárez, Jonah Maswai, Christina S Polyak, I. Elaine Allen, and Benedetta Milanini
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Adult ,Male ,0301 basic medicine ,T cell ,Lipopolysaccharide Receptors ,Antigens, Differentiation, Myelomonocytic ,HIV Infections ,Receptors, Cell Surface ,Context (language use) ,CD38 ,Monocytes ,Article ,Cohort Studies ,03 medical and health sciences ,Cellular and Molecular Neuroscience ,chemistry.chemical_compound ,Cognition ,0302 clinical medicine ,Antigens, CD ,Virology ,medicine ,Humans ,Aged ,business.industry ,Monocyte ,virus diseases ,Neopterin ,Africa, Eastern ,Middle Aged ,030104 developmental biology ,medicine.anatomical_structure ,Neurology ,chemistry ,Immunology ,Cohort ,Female ,Neurology (clinical) ,business ,Biomarkers ,030217 neurology & neurosurgery ,CD8 ,Cohort study - Abstract
Chronic inflammation associated with monocyte activation has been linked to HIV-related cognitive outcomes in resource-rich settings. Few studies have investigated this relationship in the African context where endemic non-HIV infections may modulate effects. We characterized immune activation biomarkers in Kenyan and Ugandan participants in relation to neuropsychological testing performance (NTP) from the African Cohort Study (AFRICOS). We focused on activation markers associated with monocytes (sCD14, sCD163, neopterin), T cells (HLA-DR+CD38+ on CD4+ and CD8+ T lymphocytes), and microbial translocation (intestinal fatty acid-binding protein, I-FABP). The HIV-infected (n = 290) vs. HIV-uninfected (n = 104) groups were similar in age with mean (SD) of 41 (9.5) vs. 39 (9.9) years, respectively (p = 0.072). Among HIV-infected participants, the mean (SD) current CD4+ count was 402 (232); 217 (75%) were on combination antiretroviral therapy (cART) and 199 (69%) had suppressed plasma HIV RNA. sCD14 was inversely correlated to NTP (r = − 0.14, p = 0.037) in models that included both HIV-infected and uninfected individuals, adjusted for HIV status and research site, whereas sCD163 was not (r = 0.041, p = 0.938). Neither of the T cell activation markers correlated with NTP. In the HIV-infected group, I-FABP was inversely associated with NTP (r = − 0.147, p = 0.049), even among those with suppressed plasma virus (r = − 0.0004, p = 0.025). Among the full group, HIV status did not appear to modulate the effects observed. In this cohort from East Africa, sCD14, but not sCD163, is associated with cognitive performance regardless of HIV status. Findings among both HIV-infected and HIV-uninfected groups is supportive that HIV and non-HIV-related inflammatory sources contribute to cognitive performance in this setting.
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- 2019
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27. Dissecting drivers of immune activation in chronic HIV-1 infection
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Hendrik Streeck, Alvino Maestri, Daniel Habermann, Trevor A. Crowell, Allahna L. Esber, Gowoon Son, Leigh Anne Eller, Michael A. Eller, Ajay P. Parikh, Peter A. Horn, Lucas Maganga, Emmanuel Bahemana, Yakubu Adamu, Francis Kiweewa, Jonah Maswai, John Owuoth, Merlin L. Robb, Nelson L. Michael, Christina S. Polyak, Daniel Hoffmann, and Julie A. Ake
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Male ,History ,Polymers and Plastics ,Anti-HIV Agents ,Medizin ,HIV Infections ,General Medicine ,Industrial and Manufacturing Engineering ,General Biochemistry, Genetics and Molecular Biology ,Cohort Studies ,HIV-1 ,Humans ,Female ,Viremia ,Business and International Management ,Biologie - Abstract
Background: Immune activation is a significant contributor to HIV pathogenesis and disease progression. In virally-suppressed individuals on ART, low-level immune activation has been linked to several non-infectious comorbid diseases. However, studies have not been systematically performed in sub-Saharan Africa and thus the impact of demographics, ART and regional endemic co-infections on immune activation is not known. We therefore comprehensively evaluated in a large multinational African cohort markers for immune activation and its distribution in various settings. Methods: 2747 specimens from 2240 people living with HIV (PLWH) and 477 without HIV from the observational African Cohort Study (AFRICOS) were analyzed for 13 immune parameters. Samples were collected along with medical history, sociodemographic and comorbidity data at 12 HIV clinics across 5 programs in Uganda, Kenya, Tanzania and Nigeria. Data were analyzed with univariate and multivariate methods such as random forests and principal component analysis. Findings: Immune activation was markedly different between PLWH with detectable viral loads, and individuals without HIV across sites. Among viremic PLWH, we found that all immune parameters were significantly correlated with viral load except for IFN-α. The overall inflammatory profile was distinct between men and women living with HIV, in individuals off ART and with HIV viremia. We observed stronger differences in the immune activation profile with increasing viremia. Using machine learning methods, we found that geographic differences contributed to unique inflammatory profiles. We also found that among PLWH, age and the presence of infectious and/or noninfectious comorbidities showed distinct inflammatory patterns, and biomarkers may be used to predict the presence of some comorbidities. Interpretation: Our findings show that chronic immune activation in HIV-1 infection is influenced by HIV viral load, sex, age, region and ART use. These predictors, as well as associations among some biomarkers and coinfections, influence biomarkers associated with noncommunicable diseases. Funding: This work was supported by the President's Emergency Plan for AIDS Relief via a cooperative agreement between the Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., and the U.S. Department of Defense [W81XWH-11-2-0174, W81XWH-18-2-0040]. The investigators have adhered to the policies for protection of human subjects as prescribed in AR 70–25. This article was prepared while Michael A. Eller was employed at Henry M. Jackson Foundation for the Advancement of Military Medicine for the U.S. Military HIV Research Program. The views expressed are those of the authors and should not be construed to represent the positions of the US Army or the Department of Defense. The opinions expressed in this article are the author's own, and do not reflect the view of the National Institutes of Health, the U.S. Department of Health and Human Services, or the U.S. government. CA extern
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- 2022
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28. Persons living with HIV in sero-discordant partnerships experience improved HIV care engagement compared with persons living with HIV in sero-concordant partnerships: a cross-sectional analysis of four African countries
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Domonique M. Reed, John Owuoth, Jonah Maswai, Hannah Kibuuka, Michael Iroezindu, Christina S Polyak, Emmanuel Bahemana, Allahna Esber, Julie A Ake, Kavitha Ganesan, and Trevor A Crowell
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Cross-sectional study ,Sexual Behavior ,Psychological intervention ,HIV Infections ,Affect (psychology) ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Virology ,ART uptake ,parasitic diseases ,Humans ,HIV care continuum ,Medicine ,Uganda ,Viral load ,Pharmacology (medical) ,030212 general & internal medicine ,Sero-discordant relationship ,030505 public health ,Sub-Saharan Africa ,biology ,business.industry ,Research ,virus diseases ,RC581-607 ,biology.organism_classification ,Treatment as prevention ,Confidence interval ,Cross-Sectional Studies ,Sexual Partners ,Tanzania ,Molecular Medicine ,Female ,Immunologic diseases. Allergy ,0305 other medical science ,business ,Demography ,Cohort study - Abstract
Background Persons living with HIV (PLWH) who are members of sero-discordant and sero-concordant relationships may experience psychological stressors or motivators that affect HIV care. We assessed the association between sero-discordance status, antiretroviral therapy (ART) uptake, and viral suppression in the African Cohort Study (AFRICOS). Methods AFRICOS enrolls PLWH and HIV-uninfected individuals at 12 sites in Uganda, Kenya, Tanzania, and Nigeria. At enrollment, we determined ART use through self-report. Viral suppression was defined as HIV RNA Results From January 2013 through March 2018, 223 index participants from sero-discordant dyads and 61 from sero-concordant dyads were enrolled. The majority of the indexes were aged 25–34 years (50.2%), female (53.4%), and married (96.5%). Sero-discordant indexes were more likely to disclose their status to partners compared with sero-concordant indexes (96.4% vs. 82.0%, p Conclusions PLWH in sero-discordant sexual partnerships demonstrated improved uptake of ART compared with those in sero-concordant partnerships. Interventions are needed to increase care engagement by individuals in sero-concordant relationships to improve HIV outcomes.
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- 2021
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29. Assessing the impact of HIV support groups on antiretroviral therapy adherence and viral suppression in the African cohort study
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Julie A Ake, Trevor A Crowell, Yakubu Adamu, Abdulwasiu B. Tiamiyu, Domonique Reed, Hannah Kibuuka, John Owuoth, Jonah Maswai, Michael Iroezindu, Emmanuel Bahemana, Christina S Polyak, Nicole Dear, Prudence Mbah, Allahna Esber, and Samirah Sani Mohammed
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Adult ,Male ,medicine.medical_specialty ,medicine.medical_treatment ,ART adherence ,HIV Infections ,Infectious and parasitic diseases ,RC109-216 ,Logistic regression ,Support group ,Medication Adherence ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Antiretroviral Therapy, Highly Active ,Medicine ,Humans ,030212 general & internal medicine ,Generalized estimating equation ,030505 public health ,biology ,business.industry ,Research ,Attendance ,HIV ,Odds ratio ,Africa, Eastern ,Middle Aged ,Viral Load ,biology.organism_classification ,Viral suppression ,Confidence interval ,Self-Help Groups ,Infectious Diseases ,Tanzania ,Logistic Models ,Africa ,Female ,Self Report ,0305 other medical science ,business ,Cohort study - Abstract
Background Support groups for people living with HIV (PLWH) may improve HIV care adherence and outcomes. We assessed the impact of support group attendance on antiretroviral therapy (ART) adherence and viral suppression in four African countries. Methods The ongoing African Cohort Study (AFRICOS) enrolls participants at 12 clinics in Kenya, Uganda, Tanzania, and Nigeria. Self-reported attendance of any support group meetings, self-reported ART adherence, and HIV RNA are assessed every 6 months. Logistic regression models with generalized estimating equations were used to estimate adjusted odds ratios (aORs) and 95% confidence intervals (95% CIs) for support group attendance and other factors potentially associated with ART adherence and viral suppression. Results From January 2013 to December 1, 2019, 1959 ART-experienced PLWH were enrolled and 320 (16.3%) reported any support group attendance prior to enrollment. Complete ART adherence, with no missed doses in the last 30 days, was reported by 87.8% while 92.4% had viral suppression Conclusion Support group attendance was not associated with significantly improved ART adherence or viral suppression, although low support group uptake may have limited our ability to detect a statistically significant impact.
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- 2021
30. Assessment of tuberculosis disease activity in people infected with Mycobacterium tuberculosis and living with HIV: A longitudinal cohort study
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Inge Kroidl, Mohamed I.M. Ahmed, Sacha Horn, Christina Polyak, Allahna Esber, Ajay Parikh, Leigh Anne Eller, Hannah Kibuuka, Michael Semwogerere, Betty Mwesigwa, Prossy Naluyima, Joy Mary Kasumba, Jonah Maswai, John Owuoth, Valentine Sing'oei, Eric Rono, Rebecca Loose, Michael Hoelscher, Julie Ake, and Christof Geldmacher
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General Medicine - Published
- 2022
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31. Impact of age on CD4 recovery and viral suppression over time among adults living with HIV who initiated antiretroviral therapy in the African Cohort Study
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Domonique Reed, Trevor A Crowell, Michael Iroezindu, Jonah Maswai, Francis Kiweewa, Ajay Parikh, Anange Lwilla, Nancy Somi, Gwamaka Mwaisanga, Mucho Mizinduko, Dorothy Mkondoo, John Owouth, Samoel Khamadi, Julie A Ake, Emmanuel Bahemana, Nicole Dear, Victor Valcour, Christina S Polyak, Lucas Maganga, Kavitha Ganesan, and Allahna Esber
- Subjects
0301 basic medicine ,lcsh:Immunologic diseases. Allergy ,Adult ,Anti-HIV Agents ,Population ,HIV Infections ,HIV treatment outcomes ,Sub-saharan Africa ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Virology ,Statistical significance ,Elders on antiretroviral drugs ,Medicine ,Humans ,Pharmacology (medical) ,Medical history ,030212 general & internal medicine ,education ,HIV and aging ,Generalized estimating equation ,Aged ,education.field_of_study ,business.industry ,Mortality rate ,Research ,Middle Aged ,Viral Load ,Kenya ,CD4 Lymphocyte Count ,030104 developmental biology ,Cohort ,Molecular Medicine ,business ,lcsh:RC581-607 ,Viral load ,Demography ,Cohort study - Abstract
Introduction With increased use of antiretroviral therapy (ART), HIV mortality rates are declining and people living with HIV (PLWH) are surviving longer. We characterized CD4 recovery and viral suppression among adults aged Methods Beginning in January 2013, PLWH at twelve clinics in Kenya, Uganda, Tanzania and Nigeria underwent medical history review, CD4 and viral load testing as part of the ongoing African Cohort Study (AFRICOS). ART-naïve PLWH who initiated ART within 30 days of enrollment and had at least one year of follow-up were included in these analyses. To compare ART response in participants Results Between January 2013 and September 2019, 2918 PLHV were enrolled in the cohort. Of these, 443 were ART naïve and initiated on ART within 30 days of enrollment, with 90% (n = 399) aged 3, IQR:130–547 vs. 277cells/mm3, IQR: 132–437). In adjusted models examining CD4 recovery and viral suppression there were no significant differences by age group over time. By the end of follow-up viral suppression was high among both groups of adults (96% of adults ≥ 50 years old and 92% of adults Conclusion This study found no difference in long-term CD4 recovery or viral suppression by age at ART initiation. We found that particularly among younger adults participants had lower median CD4 counts at ART initiation, suggesting the importance of identifying and putting this population on treatment earlier in the disease course.
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- 2020
32. The pregnancy factor: the prevalence of depression among women living with HIV enrolled in the African Cohort Study (AFRICOS) by pregnancy status
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Milissa U, Jones, Allahna L, Esber, Nicole, Dear, Emmanuel, Bahemana, Hannah, Kibuuka, Michael, Iroezindu, Jonah, Maswai, John, Owuoth, Christina S, Polyak, Julie A, Ake, Trevor A, Crowell, and Patrick W, Hickey
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Cohort Studies ,Depression ,Pregnancy ,Prevalence ,Humans ,Female ,HIV Infections ,Pregnancy Complications, Infectious - Abstract
Among Sub-Saharan African women living with HIV (WLWH), pregnancy creates unique stressors that may cause depression. We describe the prevalence of depression among WLWH enrolled in the African Cohort Study (AFRICOS) by pregnancy status and describe factors associated with depression. WLWH45 years of age underwent six-monthly visits with depression diagnosed using the Center for Epidemiological Studies-Depression scale. Visits were categorized as "pregnant;" "postpartum" (the first visit made after the last pregnancy visit), and "non-pregnant." The prevalence of depression was calculated for each visit type and compared using prevalence odds ratios (POR) with 95% confidence intervals (CI). Logistic regression with generalized estimating equations was used to evaluate sociodemographic factors associated with depression. From January 2013 to March 1, 2020, 1333 WLWH were enrolled, and 214 had pregnancies during follow-up. As compared to the prevalence of depression during "non-pregnant" visits (9.1%), depression was less common at "pregnant" (6.3%; POR = 0.68 [CI: 0.42, 1.09]) and "postpartum" (3.4%; POR = 0.36 [CI: 0.17, 0.76]) visits. When controlling for other factors, the visit category was not independently associated with depression. Visit number, study site, employment status, and food security were independently associated with decreased odds of depression. We observed a lower prevalence of depression during pregnancy and the postpartum period than has been previously described among WLWH during similar time points. We observed protective factors against depression which highlight the impact that holistic and consistent health care at HIV-centered clinics may have on the well-being of WLWH in AFRICOS.
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- 2020
33. Clinical similarities and differences between two large HIV cohorts in the United States and Africa
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Anne K, Monroe, Christina S, Polyak, Amanda D, Castel, Allahna L, Esber, Morgan E, Byrne, Jonah, Maswai, John, Owuoth, Lucas, Maganga, Emmanuel, Bahemana, Yakubu, Adamu, Michael, Iroezindu, Hannah, Kibuuka, Francis, Kiweewa, Alan E, Greenberg, Trevor A, Crowell, and Julie A, Ake
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Adult ,Cohort Studies ,Coinfection ,Humans ,Female ,HIV Infections ,Middle Aged ,Kenya ,United States ,Retrospective Studies - Abstract
Washington, DC, and sub-Saharan Africa are both affected by generalized HIV epidemics. However, care for persons living with HIV (PLWH) and clinical outcomes may differ in these geographically and culturally diverse areas. We compared patient and clinical site characteristics among adult persons living with HIV (PLWH) enrolled in two longitudinal HIV cohort studies-the African Cohort Study (AFRICOS) and the DC Cohort.The DC Cohort is a clinic-based city-wide longitudinal cohort comprised of PLWH attending 15 HIV clinics in Washington, DC. Patients' socio-demographic characteristics, clinical evaluations, and laboratory data are retrospectively collected from electronic medical records and limited manual chart abstraction. AFRICOS is a prospective observational cohort of PLWH and uninfected volunteers attending 12 select HIV care and treatment facilities in Nigeria, Kenya, Uganda and Tanzania. AFRICOS study participants are a subset of clinic patients who complete protocol-specific visits every 6 months with history and physical examination, questionnaire administration, and blood/sputum collection for ascertainment of HIV outcomes and comorbidities, and neurocognitive and functional assessments. Among participants aged ≥ 18 years, we generated descriptive statistics for demographic and clinical characteristics at enrollment and follow up and compared them using bivariable analyses.The study sample included 2,774 AFRICOS and 8,420 DC Cohort participants who enrolled from January 2013 (AFRICOS)/January 2011 (DC Cohort) through March 2018. AFRICOS participants were significantly more likely to be women (58.8% vs 27.1%) and younger (83.3% vs 61.1% aged50 years old) and significantly less likely to be MSM (only 0.1% of AFRICOS population reported MSM risk factor) than DC Cohort. Similar rates of current viral suppression (about 75% of both samples), hypertension, hepatitis B coinfection and alcohol use were observed. However, AFRICOS participants had significantly higher rates of CD4200 and tuberculosis and significantly lower rates of obesity, DM, hepatitis C coinfection and syphilis.With similar viral suppression outcomes, but many differences between our cohorts noted, the combined sample provides unique opportunities to assess and compare HIV care and treatment outcomes in the U.S. and sub-Saharan Africa. Comparing these two cohorts may inform care and treatment practices and may pave the way for future pathophysiologic analyses.
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- 2020
34. Predictors and Barriers to Condom Use in the African Cohort Study
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Domonique Reed, Jonah Maswai, Nicole Dear, John Owuoth, Lucas Maganga, Michael Iroezindu, Allahna Esber, Emmanuel Bahemana, Akindiran Akintunde, Tope Analogbei, Trevor A Crowell, Christina S Polyak, Francis Kiweewa, Julie A Ake, and Yakubu Adamu
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Sexual partner ,Adult ,Male ,Adolescent ,Sexual Behavior ,Human immunodeficiency virus (HIV) ,HIV Infections ,medicine.disease_cause ,law.invention ,Cohort Studies ,Condoms ,03 medical and health sciences ,symbols.namesake ,Young Adult ,0302 clinical medicine ,Condom ,law ,medicine ,Humans ,030212 general & internal medicine ,Poisson regression ,Prospective Studies ,030505 public health ,biology ,business.industry ,Public Health, Environmental and Occupational Health ,virus diseases ,biology.organism_classification ,Infectious Diseases ,Tanzania ,Sexual Partners ,Africa ,symbols ,Female ,Hiv status ,Consistent condom ,0305 other medical science ,business ,Cohort study ,Demography - Abstract
Consistent condom use is an inexpensive and efficacious HIV prevention strategy. Understanding factors associated with condom use and barriers to use can inform strategies to increase condom uptake. The ongoing African Cohort Study prospectively enrolls adults at 12 clinical sites in Uganda, Kenya, Tanzania, and Nigeria. At enrollment, participants are asked about condom use at last sex with a regular partner. Robust Poisson regression models were used to evaluate predictors of self-reported condom use. Participants who reported not using condoms were asked to provide reasons. From January 2013 to September 2019, 2482 participants reported having at least one regular sexual partner in the preceding 6 months. Of those, 1577 (63.5%) reported using a condom at last sex. Condom use was more common among older participants, males, HIV-infected participants, and those with an HIV-infected partner. Married participants, those with a partner of unknown HIV status, and those reporting alcohol use were less likely to report condom use at last sex. Condom use at last sex also varied significantly by clinical site. Partner disapproval or refusal to use a condom was a consistent driver of disparities in condom use among participants who were HIV infected, female, and aged 18-24 years. Effective HIV prevention programs should integrate condom education with the tools necessary to negotiate condom use with regular partners.
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- 2020
35. Decreasing time to antiretroviral therapy initiation after HIV diagnosis in a clinic‐based observational cohort study in four African countries
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Trevor A Crowell, Merlin L. Robb, John Owuoth, Julie A Ake, Peter Coakley, Yakubu Adamu, Christina S Polyak, Allahna Esber, Jonah Maswai, Emmanuel Bahemana, and Francis Kiweewa
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Adult ,Male ,Pediatrics ,medicine.medical_specialty ,Every Six Months ,Anti-HIV Agents ,antiretroviral therapy ,Short Report ,Nigeria ,Physical examination ,HIV Infections ,Tanzania ,Time-to-Treatment ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Short Reports ,Interquartile range ,medicine ,Humans ,Medical history ,Uganda ,030212 general & internal medicine ,time‐to‐treatment ,highly active ,Proportional Hazards Models ,030505 public health ,biology ,medicine.diagnostic_test ,business.industry ,HIV‐1 ,Public Health, Environmental and Occupational Health ,CD4 lymphocyte count ,Guideline ,biology.organism_classification ,Kenya ,Infectious Diseases ,Cohort ,Africa ,Female ,0305 other medical science ,business ,Cohort study ,treatment initiation - Abstract
Introduction World Health Organization (WHO) guidelines have shifted over time to recommend earlier initiation of antiretroviral therapy (ART) and now encourage ART initiation on the day of HIV diagnosis, if possible. However, barriers to ART access may delay initiation in resource‐limited settings. We characterized temporal trends and other factors influencing the interval between HIV diagnosis and ART initiation among participants enrolled in a clinic‐based cohort across four African countries. Methods The African Cohort Study enrols adults engaged in care at 12 sites in Uganda, Kenya, Tanzania and Nigeria. Participants provide a medical history, complete a physical examination and undergo laboratory assessments every six months. Participants with recorded dates of HIV diagnosis were categorized by WHO guideline era (50 years at diagnosis was independently associated with shorter time to ART initiation as compared to 18 to 29 years (HR: 1.38; 95% CI: 1.19 to 1.61). Conclusions Consistent with changing guidelines, the interval between diagnosis and ART initiation has decreased over time. Still, many adults living with HIV initiated treatment with low CD4, highlighting the need to diagnose HIV earlier while improving access to immediate ART after diagnosis.
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- 2020
36. 1540. Prevalence and Risk Factors associated with HIV and Syphilis Co-infection in the African Cohort Study
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Jonah Maswai, Hannah Kibuuka, Allahna Esber, Laura Gilbert, Michael Iroezindu, Trevor A Crowell, Julie A Ake, Nicole Dear, John Owuoth, Christina Polyak, and Emmanuel Bahemana
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medicine.medical_specialty ,business.industry ,Human immunodeficiency virus (HIV) ,medicine.disease_cause ,medicine.disease ,AcademicSubjects/MED00290 ,Infectious Diseases ,Oncology ,Internal medicine ,Poster Abstracts ,medicine ,Syphilis ,business ,Cohort study ,Co infection - Abstract
Background Each year, 6 million new syphilis cases are diagnosed globally. Seroprevalence studies in low-income countries (LIC) are limited but is estimated at 3.5-4.6%. Few studies have researched prevalence of sexually transmitted infections (STIs) in people living with human immunodeficiency virus (HIV; PLWH). Current guidelines for PLWH in LIC recommend STI testing for symptomatic persons and those with a new HIV diagnosis, which may lead to high rates of undiagnosed STIs. Here we provide updated STI prevalence rates and risk factors for syphilis co-infection in PLWH in the African Cohort Study (AFRICOS). Methods AFRICOS is an ongoing longitudinal study enrolling PLWH in four African countries where participants undergo routine medical exams, sociobehavioral questionnaires, and laboratory extraction for study purposes every 6 months. Enrollment syphilis data was extracted to determine screen-positive and serologically-confirmed syphilis prevalence rates for this study. Bivariate and multivariate analysis were performed to determine risk factors for HIV and syphilis co-infection and reported as adjusted prevalence ratios (APR) with 95% confidence intervals (CI). Results Between January 2013 and March 1, 2020, 2883 PLWH enrolled. Prevalence of screen-positive and confirmed syphilis was 5.2% and 3%, respectively. Among PLWH with confirmed syphilis, 58.6% were women, mean age was 37.8 years old (IQR 31.658, 45.011, p = 0.068), and genital ulcers were documented in 1.61% participants. In the multivariate model, participants with confirmed syphilis co-infection were more likely to have none or some primary education [2.65 (1.34, 5.230)], demonstrate impaired cognition [2.1 (1.25, 3.590], and consume alcohol [1.88 (1.19, 2.970] compared to those without syphilis. Conclusion In conclusion, our findings suggest that syphilis rates remain elevated at endemic levels in LIC where diagnosis remains challenging. Based on our analysis, current STI guidelines for PLWH in Africa are likely leading to a large proportion of undiagnosed STIs and potentially contributing to community spread. While this study observed that lower education level, alcoholism, and impaired cognition were associated with syphilis co-infection, further studies are needed to investigate these associations. Disclosures All Authors: No reported disclosures
- Published
- 2020
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37. 113. Advanced HIV Disease Among Adults in the African Cohort Study (AFRICOS)
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Emmanuel Bahemana, Hannah Kibuuka, John Owuoth, Michael Iroezindu, Ikwo Oboho, Heather N Paulin, Allahna Esber, Jonah Maswai, Christina Polyak, Nicole Dear, Trevor A Crowell, and Julie A Ake
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Pediatrics ,medicine.medical_specialty ,AcademicSubjects/MED00290 ,Infectious Diseases ,Oncology ,business.industry ,Poster Abstracts ,medicine ,business ,Cohort study ,Hiv disease - Abstract
Background In the “test and treat” era, early ART may decrease the prevalence of advanced HIV disease (AHD), defined as having a CD4 cell count < 200 cells/µL or World Health Organization (WHO) clinical stage III or IV disease. We assessed trends in AHD and ART coverage and describe factors associated with AHD among adults living with HIV (LWH) across four countries before and during the “test and treat” era. Methods The African Cohort Study (AFRICOS) is a prospective cohort enrolling adults at risk for HIV or LWH from 12 facilities in Uganda, Kenya, Tanzania and Nigeria. Clinical history review and laboratory testing were performed at enrollment and every 6 months. Serum cryptococcal antigen screening (CrAg) was performed in a subset with CD4 < 200 at enrollment. Logistic regression was used to estimate odds ratios for factors associated with CD4 < 200. Results From January 2013–December 2019, 2934 adults LWH were enrolled (median age 38 years [interquartile range, 31–46 years], 41.5% men). Of 2903 with CD4 results at enrollment, 567 (19.5%) had CD4 < 200. Despite consistent increases in ART coverage since 2016, across all countries the prevalence of AHD did not decline below levels observed in 2013 until 2019. The prevalence of CD4 < 200 did not significantly decline from 11.9% (range 9.1–25.0%) in 2013 to 10.3% (range 0–16%) in 2019, p=0.7, while ART coverage increased from 74.7% (range 68.3–93.8%) in 2013 to 97.5% (range 86–100%) in 2019, p= < 0.01 (Figure 1). Factors associated with a higher risk of CD4 < 200 at enrollment were being enrolled in Tanzania, male sex, age >29 years, having a primary or some secondary education or above, and WHO stage II disease or higher. Factors associated with a lower risk of CD4 < 200 were >1 year since HIV diagnosis and being on ART for at least 6 months (Table 1). Among those with CD4 < 200 at enrollment, the most commonly reported comorbidities included HIV wasting syndrome (9.3%) and tuberculosis (TB) (2.3%); 19 (3.4%) of 564 adults screened were CrAg positive. Figure 1: Trends in Percentage of Participants with CD4 Table 1: Factors associated with CD4 Conclusion Despite the scale-up of ART in the era of “test and treat”, AHD prevalence has only recently trended downward. Continued efforts towards early HIV diagnosis and timely ART initiation are needed to reduce the risk for CD4< 200. Strategies to increase TB screening, prophylaxis, and treatment are essential to reduce morbidity. Disclosures All Authors: No reported disclosures
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- 2020
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38. 976. A Descriptive Retrospective Data Analysis of Maternal Sociodemographic Factors and Access of Healthcare Resources within the African Cohort Study, an Integrated Multicountry Preventative Mother to Child Transmission Program
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Jonah Maswai, Anjali Kunz, Michael Iroezindu, Elizabeth Polston, Emmanuel Bahemana, John Owuoth, Nicole Dear, Christina Polyak, Julie A Ake, Allahna Esber, Hannah Kibuuka, Trevor A Crowell, and Jeanette Traver
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medicine.medical_specialty ,AcademicSubjects/MED00290 ,Infectious Diseases ,Mother to child transmission ,Oncology ,business.industry ,Family medicine ,Poster Abstracts ,Health care ,Medicine ,business ,Cohort study ,Retrospective data - Abstract
Background Global reduction in new infant HIV infections is largely due to the expansion of prevention of mother-to-child transmission (PMTCT) programs. Identification of gaps in healthcare services is paramount in targeting interventions that identify high-risk populations and healthcare barriers that could lead to increased risk of mother to child transmission (MTCT) of HIV. Methods HIV infected women from 5 regions of Africa enrolled in the African Cohort Study (AFRICOS) were followed prospectively with assessments performed every 6 months. Sociodemographic factors, pregnancy outcomes, and access of PMTCT resources were reviewed for retrospectively reported pregnancies and those followed prospectively from study enrollment. Statistical analysis compared the impact of clinical factors on infant mortality and preterm delivery. Results The study reported 5591 pregnancies from January 2013 to June 2019 of which 5363 were retrospectively reported prior to study enrollment and 228 occurred after enrollment. Pregnancies followed prospectively had higher rates of linkage to PMTCT services prenatally (92.5% vs 6.8%, P< 0.001), intrapartum (64.5% vs 3.5%, P< 0.001), and post-partum (64.5% vs 2.9%, P< 0.001). This group had higher rates of delivery by a skilled birth attendant (93.4% vs 66.7%, P< 0.001) and antiretroviral therapy (ART) prescribed antepartum (96.1% vs 5.5%, P< 0.001) and post-partum (74.6% vs 3.6%, P< 0.001). Both groups had similar rates of prescriptions for intrapartum ART (98.7% vs 97.9%). The majority of women reported ART adherence (96.5%, P< 0.001) which was associated with a decrease in both preterm delivery and infant mortality (adjusted OR 0.24, 95% CI 0.15-0.39). A significant proportion of women followed prospectively reported their infants received ART with good adherence (51.8% vs 0.3% and 93.4% vs 6.3%, respectively P< 0.001). Conclusion Participation in AFRICOS increased linkage to PMTCT programs which resulted in increased likelihood of skilled delivery and appropriate ART use for women and their infants. It highlights that linkage to care continues to be a crucial factor in limiting MTCT of HIV especially in resource-limited settings. Limitations in this study exist due to the low number of prospectively followed pregnancies. Disclosures All Authors: No reported disclosures
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- 2020
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39. East African HIV care: depression and HIV outcomes
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John Owuoth, Christina S Polyak, Lucas Maganga, Susan M. Meffert, Y. Adamu, Jonah Maswai, Victor Valcour, Francis Kiweewa, Charles E. McCulloch, Thomas C. Neylan, and Julie A Ake
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sub-Saharan Africa ,medicine.medical_specialty ,Etiology ,Clinical Sciences ,Human immunodeficiency virus (HIV) ,medicine.disease_cause ,03 medical and health sciences ,0302 clinical medicine ,Acquired immunodeficiency syndrome (AIDS) ,Clinical Research ,Internal medicine ,Behavioral and Social Science ,medicine ,030212 general & internal medicine ,Depression (differential diagnoses) ,Pediatric ,biology ,business.industry ,Depression ,Prevention ,virus diseases ,HIV ,Center for Epidemiologic Studies Depression Scale ,biology.organism_classification ,medicine.disease ,3. Good health ,030227 psychiatry ,Original Research Paper ,Mental Health ,Infectious Diseases ,Good Health and Well Being ,Tanzania ,Specimen collection ,Public Health and Health Services ,HIV/AIDS ,Infection ,business ,Viral load ,Cohort study - Abstract
Importance.Depression is a common co-morbidity for people living with HIV (PLWH) and is associated with elevated plasma HIV RNA levels. While depression correlates with deficits in antiretroviral (ARV) adherence, little data exist to inform the relationship between depression and HIV vial load more broadly.Objective.To examine the relationship between depression and viral load in the African Cohort Study (AFRICOS) independently of ARV adherence.Design.PLWH in Kenya, Uganda and Tanzania underwent screening for depression using the Center for Epidemiologic Studies Depression Scale (CESD) upon enrollment at AFRICOS HIV care sites.Setting.AFRICOS is an ongoing prospective longitudinal cohort study enrolling HIV-infected adults at HIV care centers including sites in Kenya, Tanzania and Uganda. These sites are administered by President's Emergency Plan For AIDS Relief programs.Participants.HIV+ individuals were eligible if they were at least 18 years old, receiving HIV care at the enrolling clinic and consented to data and specimen collection.Main outcome measure.CESD.Results.Among 2307 participants, 18–25% met the CESD threshold for depression. Depression was associated with decreased ARV adherence (OR 0.59,p = 0.01). Higher scores on three CESD items were significantly associated with 209–282% higher viral load, independently of ARV adherence among participants on ARVs ⩾6 months.Conclusions.PLWH had high prevalence of depression on the CESD. Diverse depression symptoms were independently associated with increases in viral load, underscoring the need for comprehensive treatment of depression.
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- 2019
40. Noninfectious Comorbidity in the African Cohort Study
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Patrick W. Hickey, Trevor A Crowell, John Owuoth, Tiffany E. Hamm, Julie A Ake, Emmanuel Bahemana, Kavitha Ganesan, Lucas Maganga, Francis Kiweewa, Nelson L. Michael, Leigh Anne Eller, Rither Langat, Solomon Otieno, Christina S Polyak, Michael Semwogerere, Michelle Liu, Jonah Maswai, Merlin L. Robb, Ajay Parikh, Victor Valcour, Babajide Keshinro, and Allahna Esber
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0301 basic medicine ,Microbiology (medical) ,Adult ,Male ,medicine.medical_specialty ,030106 microbiology ,HIV Infections ,Comorbidity ,Logistic regression ,03 medical and health sciences ,symbols.namesake ,0302 clinical medicine ,Internal medicine ,medicine ,Humans ,Medical history ,030212 general & internal medicine ,Poisson regression ,Longitudinal Studies ,Noncommunicable Diseases ,Articles and Commentaries ,Africa South of the Sahara ,business.industry ,Public health ,Middle Aged ,medicine.disease ,Infectious Diseases ,Relative risk ,symbols ,Female ,business ,Body mass index ,Cohort study - Abstract
BackgroundNoninfectious comorbid diseases (NCDs) contribute to morbidity and mortality in human immunodeficiency virus (HIV)–infected populations in resource-rich countries. With antiretroviral therapy (ART) scale-up in Africa, understanding burden NCD informs public health strategy.MethodsAt enrollment, participants at 11 HIV clinics in Kenya, Uganda, Tanzania, and Nigeria underwent medical history, physical, laboratory, and neuropsychological assessments to identify elevated blood pressure, hypercholesterolemia, dysglycemia, renal insufficiency, and cognitive impairment. Poisson regression models estimated adjusted relative risks (ARRs) and 95% confidence intervals (CIs) for the number of NCDs associated with factors of interest. Logistic regression was used to evaluate each NCD separately among HIV-infected participants.ResultsAmong 2720 participants with complete NCD data, 2159 (79.4%) were HIV-infected. Of those, 1426 (66.0%) were taking ART and 813 (37.7%) had at least 1 NCD. HIV infection was associated with more NCDs, especially with ART (ARR, 1.42; 95% CI, 1.22–1.66). In addition to age, body mass index, and program site, ART usage was associated with more NCDs (ARR, 1.50; 95% CI, 1.27–1.78 for virologically suppressed and ARR, 1.38; 95% CI, 1.13–1.68 for viremic) among HIV-infected participants. In participants taking ART, CD4 nadir below 200 cells/mm3 was associated with more NCDs (ARR, 1.43; 95% CI, 1.06–1.93). ART use was independently associated with hypercholesterolemia and dysglycemia. Program site was significantly associated with all comorbidities except renal insufficiency.ConclusionsHIV infection was a risk for NCDs, which were common in HIV-infected participants, geographically variable, and largely consistent with metabolic complications of first-line ART.
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- 2018
41. Persistent Low-level Viremia Predicts Subsequent Virologic Failure: Is It Time to Change the Third 90?
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John Owuoth, Trevor A Crowell, Julie A Ake, Yakubu Adamu, Patrick W. Hickey, Francis Kiweewa, Jonah Maswai, Lucas Maganga, Allahna Esber, and Christina S Polyak
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0301 basic medicine ,Microbiology (medical) ,Adult ,Male ,medicine.medical_specialty ,Anti-HIV Agents ,030106 microbiology ,Context (language use) ,Viremia ,HIV Infections ,World Health Organization ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Risk Factors ,Internal medicine ,medicine ,Prevalence ,Humans ,030212 general & internal medicine ,Prospective Studies ,Treatment Failure ,Proportional Hazards Models ,Proportional hazards model ,business.industry ,Hazard ratio ,Middle Aged ,Viral Load ,medicine.disease ,Confidence interval ,VIROLOGIC FAILURE ,Infectious Diseases ,Africa ,Female ,business ,Viral load ,Cohort study - Abstract
Background World Health Organization (WHO) guidelines identify human immunodeficiency virus (HIV) viral load Methods The African Cohort Study enrolled HIV-infected adults at clinics in Uganda, Kenya, Tanzania, and Nigeria, with assessments every 6 months. We evaluated participants prescribed ART for at least 6 months without virologic failure for pLLV. We used multinomial logistic regression to evaluate associations between prespecified factors of interest and 3 levels of pLLV ( Results We included 1511 participants with 4382 person-years of follow-up. PLLV Conclusions Participants with pLLV ≥200 copies/mL were at increased risk of subsequent virologic failure. Optimized HIV care in this setting should target viral suppression
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- 2018
42. Biomarkers of Inflammation Correlate With Clinical Scoring Indices in Human Immunodeficiency Virus-Infected Kenyans
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Kara Lombardi, Eric Rono, Jonah Maswai, Peter Dawson, Nelson L. Michael, Michael A. Eller, Christopher Bryant, Julie A Ake, Trevor A Crowell, Andrew G. Letizia, Dohoon Kim, Leigh Anne Eller, Merlin L. Robb, Christina S Polyak, and Matthew Creegan
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0301 basic medicine ,Adult ,Male ,medicine.medical_specialty ,MMP1 ,Cross-sectional study ,HIV Infections ,Receptors, Cell Surface ,CD38 ,MMP7 ,Gastroenterology ,Fas ligand ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Antigens, CD ,Internal medicine ,medicine ,Immunology and Allergy ,Humans ,030212 general & internal medicine ,Inflammation ,Framingham Risk Score ,business.industry ,HIV ,Middle Aged ,Prognosis ,Fibrosis ,Kenya ,030104 developmental biology ,Infectious Diseases ,Cross-Sectional Studies ,Anti-Retroviral Agents ,Linear Models ,Biomarker (medicine) ,Female ,business ,Biomarkers ,Cohort study - Abstract
Background In high-income countries, inflammation has been associated with increased morbidity and mortality in human immunodeficiency virus (HIV)-infected individuals despite treatment with antiretroviral therapy (ART). However, these findings may not be generalizable to low-income settings. Methods In this cross-sectional study, multivariable linear regression was used to compare 28 inflammatory biomarker levels in HIV-infected and -uninfected participants. Correlations between biomarkers and Veterans Aging Cohort Study (VACS) index, Fibrosis-4 (FIB-4) score, and Framingham risk score were assessed. Results Plasma samples from 304 Kenyans were analyzed. Compared to HIV-uninfected controls, virologically suppressed HIV-infected participants had higher levels of CCL5, CXCL10, fatty acid binding protein (FABP) 2, fas ligand (FASLG), matrix metalloproteinase (MMP) 1, MMP7, soluble CD14 (sCD14), and soluble CD163 (sCD163) and lower MMP9 (P < .01). CD4+/HLA-DR+CD38+ (ρ = 0.32; P < .001), sCD14 (ρ = 0.25; P = .004), and sCD163 (ρ = 0.24; P = .006) were correlated with the VACS index. FABP2 was positively correlated (ρ = 0.29; P = .002), whereas MMP1 (ρ = -.32; P < .001) and MMP2 (ρ = -0.28; P = .002) were inversely correlated with the FIB-4 score. Conclusions Differences in biomarker levels exist between well-controlled HIV-infected participants on ART and uninfected controls. Some biomarkers are correlated to scoring indices predictive of morbidity and mortality. These biomarkers could serve as prognostic indicators and inform therapeutic development.
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- 2018
43. 1258. The Pregnancy Factor: Differences in the Prevalence of Depression Among Pregnant and Nonpregnant Sub-Saharan African Women Living with HIV
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Domonique Reed, Francis Kiweewa, Allahna Esber, Julie A Ake, Jonah Maswai, Christina S Polyak, Patrick W. Hickey, Michael Iroezindu, Milissa U Jones, Trevor A Crowell, John Owuoth, and Emmanuel Bahemana
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Pregnancy ,Sub saharan ,biology ,business.industry ,Cholesteryl ester storage disease ,Human immunodeficiency virus (HIV) ,medicine.disease ,biology.organism_classification ,medicine.disease_cause ,Abstracts ,Infectious Diseases ,Tanzania ,Oncology ,Poster Abstracts ,Medicine ,Marital status ,HIV and pregnancy ,business ,Depression (differential diagnoses) ,Demography - Abstract
Background In Sub-Saharan African (SSA) women living with HIV, pregnancy creates unique stressors that may induce or exacerbate depression. We described the prevalence of depression during the perinatal period among women living with HIV that became pregnant (P-WLWH) as compared with those that did not (NP-WLWH). Methods We analyzed data from WLWH, age < 45 years, across 11 HIV clinics in Kenya, Nigeria, Uganda, and Tanzania, within the African Cohort Study (AFRICOS). Depression screening was performed via the Center for Epidemiological Studies-Depression (CESD) scale at enrollment and every 6 months in the study. For these analyses, the CESD score was assessed during three periods in time. For P-WLWH, these periods were: (1) enrollment, (2) during pregnancy and (3) the study visit following delivery. For NP-WLWH, three sequential evaluations were analyzed, with visit 1 being enrollment. We compared the prevalence of depression between groups at each period using χ 2 analysis and calculated adjusted odds ratios (OR) using logistic regression for variables associated with positive depression screening (CESD score ≥16). Results There were 764 WLWH selected for analysis, including 164 P-WLWH and 600 NP-WLWH. At enrollment, P-WLWH tended to be younger than NP-WLWH (mean age=30 vs. 34, P < 0.01). Neither group differed significantly with respect to marital status, employment, education, viral load, or duration of HIV. The crude prevalence of depression during periods 1 thru 3 for P-WLWH and NP-WLWH was: 20% (in both groups, P = 0.99), 10% and 13% (P = 0.26), and 4% and 10% (P = 0.01), respectively (figure). P-WLWH had 74% lower odds [OR = 0.26 [0.09–0.75], P = 0.01] of positive depression screening during period 3 than NP-WLWH, when controlling for age, marital status, educational level, viral load, and duration of HIV. Conclusion Surprisingly, our analyses demonstrate P-WLWH were less likely to have positive screening for depression following their pregnancies. These findings may highlight the strength of comprehensive maternal health initiatives in SSA. Additionally, these women will be followed further longitudinally to evaluate patterns of depression in the months following pregnancy. Disclosures All authors: No reported disclosures.
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- 2019
44. HIV virologic failure and its predictors among HIV-infected adults on antiretroviral therapy in the African Cohort Study
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Babajide Keshinro, Christina S Polyak, John Owuoth, Lucas Maganga, Domonique Reed, Ezra Musingye, Leigh Anne Eller, Huub C. Gelderblom, Trevor A Crowell, Rosemary Namagembe, Hannah Kibuuka, Samoel Khamadi, Fatim Cham, Monica Millard, Michael Semwogerere, Jonah Maswai, Emmanuel Bahemana, Alice Nambuya, Julie A Ake, Yakubu Adamu, Cate Kafeero, Valentine Singoei, Merlin L. Robb, Allan Tindikahwa, Francis Kiweewa, and Allahna Esber
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RNA viruses ,Male ,0301 basic medicine ,Viral Diseases ,Multivariate analysis ,Fevers ,HIV Infections ,Pathology and Laboratory Medicine ,Cohort Studies ,0302 clinical medicine ,Immunodeficiency Viruses ,Medicine and Health Sciences ,Public and Occupational Health ,Treatment Failure ,030212 general & internal medicine ,Young adult ,Multidisciplinary ,virus diseases ,Viral Load ,Middle Aged ,Vaccination and Immunization ,Viral Persistence and Latency ,3. Good health ,Infectious Diseases ,Anti-Retroviral Agents ,Medical Microbiology ,Research Design ,Viral Pathogens ,Viruses ,Medicine ,RNA, Viral ,Female ,Pathogens ,Viral load ,Research Article ,Cohort study ,Adult ,Risk ,medicine.medical_specialty ,Adolescent ,Science ,Immunology ,030106 microbiology ,Antiretroviral Therapy ,Research and Analysis Methods ,Microbiology ,Young Adult ,03 medical and health sciences ,Signs and Symptoms ,Pharmacotherapy ,Antiviral Therapy ,Diagnostic Medicine ,Predictive Value of Tests ,Virology ,Internal medicine ,Retroviruses ,medicine ,Humans ,Viremia ,Microbial Pathogens ,business.industry ,Lentivirus ,Organisms ,Biology and Life Sciences ,HIV ,Confidence interval ,CD4 Lymphocyte Count ,Regimen ,Relative risk ,Africa ,Multivariate Analysis ,HIV-1 ,Linear Models ,Preventive Medicine ,business ,Viral Transmission and Infection - Abstract
Introduction The 2016 WHO consolidated guidelines on the use of antiretroviral drugs defines HIV virologic failure for low and middle income countries (LMIC) as plasma HIV-RNA ≥ 1000 copies/mL. We evaluated virologic failure and predictors in four African countries. Materials and methods We included HIV-infected participants on a WHO recommended antiretroviral therapy (ART) regimen and enrolled in the African Cohort Study between January 2013 and October 2017. Studied outcomes were virologic failure (plasma HIV-RNA ≥ 1000 copies/mL at the most recent visit), viraemia (plasma HIV-RNA ≥ 50 copies/mL at the most recent visit); and persistent viraemia (plasma HIV-RNA ≥ 50 copies/mL at two consecutive visits). Generalized linear models were used to estimate relative risks with their 95% confidence intervals. Results 2054 participants were included in this analysis. Viraemia, persistent viraemia and virologic failure were observed in 396 (19.3%), 160 (7.8%) and 184 (9%) participants respectively. Of the participants with persistent viraemia, only 57.5% (92/160) had confirmed virologic failure. In the multivariate analysis, attending clinical care site other than the Uganda sitebeing on 2nd line ART (aRR 1.8, 95% CI 1·28–2·66); other ART combinations not first line and not second line (aRR 3.8, 95% CI 1.18–11.9), a history of fever in the past week (aRR 3.7, 95% CI 1.69–8.05), low CD4 count (aRR 6.9, 95% CI 4.7–10.2) and missing any day of ART (aRR 1·8, 95% CI 1·27–2.57) increased the risk of virologic failure. Being on 2nd line therapy, the site where one receives care and CD4 count < 500 predicted viraemia, persistent viraemia and virologic failure. Conclusion In conclusion, these findings demonstrate that HIV-infected patients established on ART for more than six months in the African setting frequently experienced viraemia while continuing to be on ART. The findings also show that being on second line, low CD4 count, missing any day of ART and history of fever in the past week remain important predictors of virologic failure that should trigger intensified adherence counselling especially in the absence of reliable or readily available viral load monitoring. Finally, clinical care sites are different calling for further analyses to elucidate on the unique features of these sites.
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- 2019
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45. Decreasing Time to Antiretroviral Therapy Initiation After Human Immunodeficiency Virus (HIV) Diagnosis in Sub-Saharan Africa
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Jonah Maswai, Francis Kiweewa, John Owuoth, Julie A Ake, Babajide Keshinro, Christina S Polyak, Peter Coakley, Emmanuel Bahemana, and Trevor A Crowell
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Infectious Diseases ,Sub saharan ,Oncology ,business.industry ,HIV diagnosis ,Human immunodeficiency virus (HIV) ,medicine ,medicine.disease_cause ,business ,Virology ,Antiretroviral therapy - Published
- 2016
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46. Comparison of Inflammatory Biomarkers and Immune Activation With Comorbid Conditions in a Kenyan Population Based Upon HIV Status and Treatment
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Julie A Ake, Leigh Anne Eller, Michael A. Eller, Jonah Maswai, Andrew G. Letizia, Eric Rono, Rither Langat, and Matthew Creegan
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Infectious Diseases ,Oncology ,business.industry ,Immunology ,Medicine ,Hiv status ,Population based ,business ,Inflammatory biomarkers ,Immune activation - Published
- 2015
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47. Kericho CLinic-based ART Diagnostic Evaluation (CLADE): design, accrual, and baseline characteristics of a randomized controlled trial conducted in predominately rural, district-level, HIV clinics of Kenya
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Nicole Close, Eunice Obiero, Jonah Maswai, Samoel Khamadi, Margaret Bii, Samuel S. Sinei, Ignatius Kiptoo, Appolonia Aoko, Kibet P. Shikuku, Jemutai Tarus, Peter Yegon, Raphael K. Langat, Fredrick Sawe, Rither C. Langat, and Douglas Shaffer
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Adult ,Male ,medicine.medical_specialty ,Efavirenz ,Nevirapine ,Anti-HIV Agents ,Voluntary counseling and testing ,Cost-Benefit Analysis ,lcsh:Medicine ,HIV Infections ,law.invention ,chemistry.chemical_compound ,Randomized controlled trial ,Acquired immunodeficiency syndrome (AIDS) ,law ,Internal medicine ,medicine ,Humans ,Prospective Studies ,lcsh:Science ,Multidisciplinary ,business.industry ,Stavudine ,lcsh:R ,Lamivudine ,Middle Aged ,Viral Load ,medicine.disease ,Kenya ,Clinical trial ,Treatment Outcome ,chemistry ,Research Design ,Immunology ,HIV-1 ,Reverse Transcriptase Inhibitors ,Female ,lcsh:Q ,business ,Zidovudine ,medicine.drug ,Research Article - Abstract
Background Prospective clinical trial data regarding routine HIV-1 viral load (VL) monitoring of antiretroviral therapy (ART) in non-research clinics of Sub-Saharan Africa are needed for policy makers. Methods CLinic-based ART Diagnostic Evaluation (CLADE) is a randomized, controlled trial (RCT) evaluating feasibility, superiority, and cost-effectiveness of routine VL vs. standard of care (clinical and immunological) monitoring in adults initiating dual nucleoside reverse transcriptase inhibitor (NRTI)+non-NRTI ART. Participants were randomized (1:1) at 7 predominately rural, non-research, district-level clinics of western Kenya. Descriptive statistics present accrual patterns and baseline cohort characteristics. Results Over 15 months, 820 adults enrolled at 7 sites with 86–152 enrolled per site. Monthly site enrollment ranged from 2–92 participants. Full (100%) informed consent compliance was independently documented. Half (49.9%) had HIV diagnosed through voluntary counseling and testing. Study arms were similar: mostly females (57.6%) aged 37.6 (SD = 9.0) years with low CD4 (166 [SD = 106]) cells/m3). Notable proportions had WHO Stage III or IV disease (28.7%), BMI
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- 2015
48. Diagnosis disclosure to adolescents living with HIV in rural Kenya improves antiretroviral therapy adherence and immunologic outcomes: A retrospective cohort study
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Jonah Maswai, Stephen K. Bii, Argwings Odhiambo Miruka, Katherine X. Song, Sheila Korir, Fredrick Sawe, Anjali Kunz, Gregg Joseph Montalto, Eunice Obiero, Ignatius Kiptoo, Chrispine Oreyo, and Appolonia Aoko
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Male ,Rural Population ,RNA viruses ,Cross-sectional study ,lcsh:Medicine ,HIV Infections ,Adolescents ,Pathology and Laboratory Medicine ,Geographical Locations ,Families ,0302 clinical medicine ,Anti-Infective Agents ,Immunodeficiency Viruses ,Medicine ,Outpatient clinic ,Public and Occupational Health ,030212 general & internal medicine ,Young adult ,lcsh:Science ,Child ,Children ,Multidisciplinary ,HIV diagnosis and management ,Professional-Patient Relations ,Viral Load ,Vaccination and Immunization ,Treatment Outcome ,Anti-Retroviral Agents ,Medical Microbiology ,Viral Pathogens ,Viruses ,Cohort ,Infectious diseases ,Female ,Pathogens ,0305 other medical science ,Psychosocial ,Research Article ,medicine.medical_specialty ,Adolescent ,Immunology ,MEDLINE ,Antiretroviral Therapy ,Viral diseases ,Truth Disclosure ,Microbiology ,Young Adult ,03 medical and health sciences ,Antiviral Therapy ,Virology ,Trimethoprim, Sulfamethoxazole Drug Combination ,Retroviruses ,Humans ,Psychiatry ,Microbial Pathogens ,Retrospective Studies ,Medicine and health sciences ,Psychological and Psychosocial Issues ,030505 public health ,business.industry ,lcsh:R ,Lentivirus ,Organisms ,HIV ,Biology and Life Sciences ,Retrospective cohort study ,Kenya ,Diagnostic medicine ,CD4 Lymphocyte Count ,Health Care ,Cross-Sectional Studies ,Age Groups ,Family medicine ,People and Places ,Africa ,Patient Compliance ,lcsh:Q ,Population Groupings ,Preventive Medicine ,business ,Viral Transmission and Infection - Abstract
Background & aims Emphasis on adolescent HIV has increased worldwide as antiretroviral treatment has greatly extended life expectancies of HIV-positive children. Few evidence-based guidelines exist on the optimal time to disclose to an adolescent living with HIV (ALHIV); little is known about the medical effects of disclosure. This study looked to determine whether disclosure is associated with improved medical outcomes in ALHIV. Prior work has tended to be qualitative, cross-sectional, and with an emphasis on psychosocial outcomes. This paper addresses the adolescent cohort retrospectively (longitudinally), building upon what is already known about disclosure. Methods Retrospective, longitudinal clinical record reviews of ALHIV seen at Kericho District Hospital between April 2004 and November 2012 were performed. Patient demographics and clinical outcomes were systematically extracted. The student's t-test was used to calculate changes in mean CD4 count, antiretroviral therapy (ART), and cotrimoxazole adherence pre- vs. post-disclosure. Linear regression modelling assessed for trends in those clinical outcomes associated with age of disclosure. Results Ninety-six ALHIV (54 female, 42 male) were included; most (73%) entered care through the outpatient department. Nearly half were cared for by parents, and 20% experienced a change in their primary caregiver. The mean time in the study was 2.47 years; mean number of visits 10.97 per patient over the mean time in the study. Mean disclosure age was 12.34 years. An increase in mean ART adherence percentage was found with disclosure (0.802 vs. 0.917; p = 0.0015). Younger disclosure age was associated with significantly higher mean CD4 counts over the course of the study (p = 0.001), and a nonsignificant trend toward a higher mean ART adherence percentage (p = 0.055). Conclusion ART adherence and improved immunologic status are both associated with disclosure of HIV infection to adolescent patients. Disclosure of an HIV diagnosis to an adolescent is an important means to improve HIV care.
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- 2017
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49. Occurrence of etravirine/rilpivirine-specific resistance mutations selected by efavirenz and nevirapine in Kenyan patients with non-B HIV-1 subtypes failing antiretroviral therapy
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Tiffany E. Hamm, Dorothy Njeru, James Munyao, Jemutai Tarus, Samoel Khamadi, Jane Kimetto, Duncan Apollo, Lawrence Gitonga, Appolonia Aoko, Milton Omondi, Raphael Langat, Jonah Maswai, and Keith W. Crawford
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Nevirapine ,Efavirenz ,Anti-HIV Agents ,Immunology ,Molecular Sequence Data ,Mutation, Missense ,Etravirine ,HIV Infections ,chemistry.chemical_compound ,Acquired immunodeficiency syndrome (AIDS) ,Drug Resistance, Viral ,medicine ,Immunology and Allergy ,Humans ,Treatment Failure ,Selection, Genetic ,Reverse-transcriptase inhibitor ,business.industry ,Sequence Analysis, DNA ,medicine.disease ,Antiretroviral therapy ,Virology ,Kenya ,Reverse transcriptase ,Infectious Diseases ,Cross-Sectional Studies ,chemistry ,Rilpivirine ,HIV-1 ,business ,medicine.drug - Abstract
Resistance to efavirenz and nevirapine has not been associated with mutations at position 138 of reverse transcriptase. In an evaluation of virologic suppression rates in PEPFAR (President's Emergency Plan For AIDS Relief) clinics in Kenya among patients on first-line therapy (RV288), 63% (617/975) of randomly selected patients on antiretroviral therapy were suppressed (HIV RNA
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- 2014
50. Successes and Challenges in an Integrated Tuberculosis/HIV Clinic in a Rural, Resource-Limited Setting: Experiences from Kericho, Kenya
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E. Jane Carter, Fredrick Sawe, Eunice Obiero, Josphat B. Bett, Jonah Maswai, Douglas Shaffer, and Ignatius Kiptoo
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lcsh:Immunologic diseases. Allergy ,medicine.medical_specialty ,Pediatrics ,Tuberculosis ,Article Subject ,business.industry ,Extrapulmonary tuberculosis ,Public Health, Environmental and Occupational Health ,Human immunodeficiency virus (HIV) ,Dermatology ,medicine.disease ,medicine.disease_cause ,Infectious Diseases ,Treatment success ,Family medicine ,Baseline characteristics ,medicine ,Clinical Study ,Immunology and Allergy ,Christian ministry ,lcsh:RC581-607 ,business ,Limited resources ,Tb treatment - Abstract
Objective. To describe TB/HIV clinic outcomes in a rural, Ministry of Health hospital.Design. Retrospective, secondary analyses. Descriptive statistics and logistic regression analyses evaluated baseline characteristics and outcomes.Results. Of 1,911 patients, 89.8% were adults aged 32.0 (±12.6) years with baselineCD4=243.3(±271.0), 18.2% 3. Pulmonary (84.8%, (32.2% smear positive)) exceeded extrapulmonary TB (15.2%). Over 5 years, treatment success rose from 40.0% to 74.6%, lost to follow-up dropped from 36.0% to 12.5%, and deaths fell from 20.0% to 5.4%. For patients starting ART after TB treatment, those with CD4 ≥ 50 cells/mm3were twice as likely to achieve treatment success (OR=2.0, 95% CI = 1.3–3.1) compared to those with CD4 3. Patients initiating ART at/after 2 months were twice as likely to achieve treatment success (OR=2.0, 95% CI = 1.3–3.3). Yearly, odds of treatment success improved by 20% (OR=1.2, 95% CI = 1.0–1.5).Conclusions. An integrated TB/HIV clinic with acceptable outcomes is a feasible goal in resource-limited settings.
- Published
- 2011
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