177 results on '"Robert Kalyesubula"'
Search Results
2. Higher prevalence of kidney function impairment among older people living with HIV in Uganda
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Amutuhaire Judith Ssemasaazi, Robert Kalyesubula, Yukari C. Manabe, Phoebe Mbabazi, Susan Naikooba, Faizo Ssekindi, Esther Nasuuna, Pauline Byakika-Kibwika, and Barbara Castelnuovo
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Older persons ,Kidney function impairment ,Sub-saharan Africa ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Background People living with HIV (PLWH) are at risk of kidney function impairment due to HIV-related inflammation, antiretroviral therapy (ART), diabetes mellitus, and hypertension. Older persons may experience a higher burden of chronic kidney disease (CKD) as kidney function declines with increasing age. There is a paucity of data comparing the prevalence of kidney function impairment in older PLWH to that in people without HIV in sub-Saharan Africa. Methods We conducted a cross-sectional study among people aged ≥ 60 years living with and without HIV in Kampala, Uganda who were matched 1:1 by community location. We collected data on sociodemographics, comorbidities, and HIV-related clinical characteristics. We defined kidney function impairment as an estimated glomerular filtration rate(eGFR)
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- 2024
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3. Prevalence and factors associated with hyperglycemia among persons living with HIV/AIDS on dolutegravir-based antiretroviral therapy in Uganda
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Lillian Happy Byereta, Ronald Olum, Edrisa Ibrahim Mutebi, Robert Kalyesubula, Majid Kagimu, David B. Meya, and Irene Andia-Biraro
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Infectious and parasitic diseases ,RC109-216 - Abstract
Background: Dolutegravir-based (DTG) regimens are rapidly becoming the preferred first-line antiretroviral therapy (ART) for people living with HIV (PLHIV) in low and middle-income countries. However, there are rising concerns over the development of hyperglycemia and, in some cases, diabetes mellitus in patients switched to DTG. Objectives: To determine the prevalence and factors associated with hyperglycemia among PLHIV receiving DTG-based ART at Kiruddu National Referral Hospital (KNRH), Uganda. Design: Cross-sectional study. Methods: The study was conducted in the inpatient wards and the infectious disease outpatient clinic of KNRH from May to July 2022. Participants aged ⩾18 years on a DTG-based ART regimen for at least 3 months were consecutively enrolled and interviewed using a research assistant administered questionnaire for sociodemographic and clinical characteristics. HbA1c was measured using whole blood Architect Ci4100 ® (Abbott, Illinois, USA), with hyperglycemia defined using a cut-off of ⩾5.7% as per the Uganda Diabetes Association guidelines. Factors associated with hyperglycemia were examined through logistic regression, adjusting for pertinent confounders, in STATA 17. A significance level was set at p 40 years ( p 3 since diagnosis with HIV ( p = 0.030). At multivariable regression, only age >40 (AOR 2.55, 95% CI: 1.05–6.23, p = 0.039) and hypertension (AOR 2.93, 95% CI: 1.07–8.02, p = 0.036) remained significantly associated with hyperglycemia. Conclusion: More than 1 in 10 patients on DTG-based ART in our study had hyperglycemia. We recommend regular monitoring of plasma glucose, especially for patients >40 years old and those with other comorbidities, before starting/switching to DTG regimens. Longitudinal studies are recommended to determine the underlying mechanisms of hyperglycemia in this population.
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- 2024
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4. Diagnostic performance of an albuminuria point-of-care test in screening for chronic kidney disease among young people living with HIV in Uganda: a cross-sectional study
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Robert Kalyesubula, Emmy Okello, Laurie A Tomlinson, Chido Dziva Chikwari, Helen A Weiss, Barbara Castelnuovo, and Esther M Nasuuna
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Medicine - Abstract
Objectives The main aim was to determine the diagnostic performance of an albuminuria point-of-care test (POC) for diagnosis of chronic kidney disease among young people living with HIV (YPLHIV) in Uganda.Design We conducted a cross-sectional study comparing the diagnostic performance of MicroalbuPHAN (Erba Lachema, Czech Republic), an albuminuria POC test against the laboratory-measured albumin and creatinine as the reference standard.Setting The study was set in seven HIV clinics in Kampala, Uganda that provide antiretroviral therapy to adults and children living with HIV. The study took place from April to August 2023.Participants 497 YPLHIV aged 10–24 years who were diagnosed with HIV before 10 years of age were randomly selected from the HIV clinics. Pregnant YPLHIV were excluded.Procedures Participants provided a spot urine sample that was tested for albumin and creatinine using the POC and in the laboratory and proteinuria using urine dipstick. The sensitivity, specificity, negative and positive predictive values (NPV, PPV) of the POC versus the laboratory test were calculated, and factors associated with having a positive POC test were estimated using logistic regression.Outcome measures The primary outcome was a diagnosis of albuminuria defined as an albumin creatinine ratio above 30 mg/g.Results Of the 497 participants enrolled, 278 (55.9%) were female and 331 (66.8%) were aged 10–17 years. The POC test had a sensitivity of 74.5% (95% CI 70.6% to 78.4%) and specificity of 68.1% (95% CI 63.9% to 72.3%). The PPV was 21.5% (95% CI 17.8% to 25.1%) and the NPV was 95.8% (95% CI 94.0% to 97.6%), with an accuracy of 68.8%. There was strong evidence that a positive POC test was associated with having proteinuria (OR 2.82; 95% CI 1.89 to 4.22, p
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- 2024
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5. Airway microbiome signature accurately discriminates Mycobacterium tuberculosis infection status
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Alex Kayongo, Moses Levi Ntayi, Geoffrey Olweny, Edward Kyalo, Josephine Ndawula, Willy Ssengooba, Edgar Kigozi, Robert Kalyesubula, Richard Munana, Jesca Namaganda, Musiime Caroline, Rogers Sekibira, Bernard Sentalo Bagaya, David Patrick Kateete, Moses Lutaakome Joloba, Daudi Jjingo, Obondo James Sande, and Harriet Mayanja-Kizza
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Microbiology ,Bacteriology ,Microbiome ,Science - Abstract
Summary: Mycobacterium tuberculosis remains one of the deadliest infectious agents globally. Amidst efforts to control TB, long treatment duration, drug toxicity, and resistance underscore the need for novel therapeutic strategies. Despite advances in understanding the interplay between microbiome and disease in humans, the specific role of the microbiome in predicting disease susceptibility and discriminating infection status in tuberculosis still needs to be fully investigated. We investigated the impact of M.tb infection and M.tb-specific IFNγ immune responses on airway microbiome diversity by performing TB GeneXpert and QuantiFERON-GOLD assays during the follow-up phase of a longitudinal HIV-Lung Microbiome cohort of individuals recruited from two large independent cohorts in rural Uganda. M.tb rather than IFNγ immune response mainly drove a significant reduction in airway microbiome diversity. A microbiome signature comprising Streptococcus, Neisseria, Fusobacterium, Prevotella, Schaalia, Actinomyces, Cutibacterium, Brevibacillus, Microbacterium, and Beijerinckiacea accurately discriminated active TB from Latent TB and M.tb-uninfected individuals.
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- 2024
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6. Challenges to Implementing Environmentally Sustainable Kidney Care in LMICs: An Opinion Piece
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Divya Bajpai, Workagegnehu Hailu, Peace Bagasha, Onu Ugochi Chika, Ehab Hafiz, Elliot Koranteng Tannor, Eranga Wijewickrama, Robert Kalyesubula, Sabine Karam, Viviane Calice-Silva, Isabelle Ethier, and Shaifali Sandal
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Diseases of the genitourinary system. Urology ,RC870-923 - Published
- 2024
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7. Meta-analysis of African ancestry genome-wide association studies identified novel locus and validates multiple loci associated with kidney function
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Christopher Kintu, Opeyemi Soremekun, Tafadzwa Machipisa, Richard Mayanja, Robert Kalyesubula, Bernard S. Bagaya, Daudi Jjingo, Tinashe Chikowore, and Segun Fatumo
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GWAS ,Africa ,Kidney function ,Fine mapping ,eGFR ,Biotechnology ,TP248.13-248.65 ,Genetics ,QH426-470 - Abstract
Abstract Despite recent efforts to increase diversity in genome-wide association studies (GWASs), most loci currently associated with kidney function are still limited to European ancestry due to the underlying sample selection bias in available GWASs. We set out to identify susceptibility loci associated with estimated glomerular filtration rate (eGFRcrea) in 80027 individuals of African-ancestry from the UK Biobank (UKBB), Million Veteran Program (MVP), and Chronic Kidney Disease genetics (CKDGen) consortia. We identified 8 lead SNPs, 7 of which were previously associated with eGFR in other populations. We identified one novel variant, rs77408001 which is an intronic variant mapped to the ELN gene. We validated three previously reported loci at GATM-SPATA5L1, SLC15A5 and AGPAT3. Fine-mapping analysis identified variants rs77121243 and rs201602445 as having a 99.9% posterior probability of being causal. Our results warrant designing bigger studies within individuals of African ancestry to gain new insights into the pathogenesis of Chronic Kidney Disease (CKD), and identify genomic variants unique to this ancestry that may influence renal function and disease.
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- 2023
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8. Protocol for an evaluation of the initiation of an integrated longitudinal outpatient care model for severe chronic non-communicable diseases (PEN-Plus) at secondary care facilities (district hospitals) in 10 lower-income countries
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Archana Shrestha, Biraj Man Karmacharya, Robert Kalyesubula, Isaac Ssinabulya, Zipporah Ali, Alma J Adler, Ana Olga Mocumbi, Neil Gupta, Meghnath Dhimal, Bhagawan Koirala, Gedeon Ngoga, Symaque Dusabeyezu, Gene Kwan, Gene Bukhman, Lilian Mbau, Beatriz Manuel, Giovanni Putoto, Santigie Sesay, Emily B Wroe, Yogeshwar Kalkonde, Sergio Chicumbe, Lauren Brown, Abha Shrestha, Lucia González, Matthew M Coates, Jones K Masiye, Mary Theodory Mayige, Wubaye Walelgne Dagnaw, Chiyembekezo Kachimanga, Ana Mocumbi, Ryan McBain, Apoorva Gomber, Fabio Manenti, Roma Chilengi, Yogesh Jain, Sam Patel, Gladwell Gathecha, Julie Makani, Amy McLaughlin, Celina Trujillo, Laura Drown, Reuben Mutagaywa, Todd Ruderman, Gina Ferrari, Chantelle Boudreaux, Humberto Muquingue, Mary Mayige, Jonathan Chiwanda Banda, Andrea Atzori, Neusa Bay, Wondu Bekele, Victoria M Bhambhani, Remy Bitwayiki Nkwiro, Dawson Calixte, Katia Domingues, Darius Fenelon, Innocent Kamali, Catherine Karekezi, Alexio Mangwiro, Fastone Mathew Goma, Emmanuel Mensah, Nicole Mocumbi Salipa, Alvern Mutengerere, Marta Patiño, Devashri Salvi, Fameti Taero, Emílio Tostão, Sterman Toussaint, Abhijit Gadewar, Sunil Jadhao, Chetanya Malik, Alma Adler, Victoria Bhambhani, Susan Donnellan, Kaita Domingues, Sheila Klassen, Andrew Marx, Maia Olsen, Catherine Player, Ramon Ruiz, Ada Thapa, Leslie Wentworth, Allison Westervelt, Ariana Wolgin, Emily Yale, Michael Abiyu, Lemma Ayele, Zelalem Mengistu, Temesgen Sileshi, Natnael Alemayehu, Natnael A Abebe, Nancy Larco, Gideon Ayodo, Peter Mokaya, Jones Masiye, Evelyn Chibwe, Noel Kasomekera, Nicole M Salipa, Riaze Rafik, Lucy Ramirez, Shiva Adhikary, Krishna Aryal, Phanindra Baral, Biraj Karmachaya, Abhinav Vaidhya, Ann Akiteng, Frank Mugabe, Sarah Asio Eragu, Bernard Bukar, Namasiku Siyumbwa, Wibroad Mutale, Kudakwashe Madzeke, Alaisa Mbiriri, Nyamayaro Wencelas, Porika Nyawai, Abaden Svisva, and Laura Ruckstuhl
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Medicine - Abstract
Introduction The Package of Essential Noncommunicable Disease Interventions—Plus (PEN-Plus) is a strategy decentralising care for severe non-communicable diseases (NCDs) including type 1 diabetes, rheumatic heart disease and sickle cell disease, to increase access to care. In the PEN-Plus model, mid-level clinicians in intermediary facilities in low and lower middle income countries are trained to provide integrated care for conditions where services traditionally were only available at tertiary referral facilities. For the upcoming phase of activities, 18 first-level hospitals in 9 countries and 1 state in India were selected for PEN-Plus expansion and will treat a variety of severe NCDs. Over 3 years, the countries and state are expected to: (1) establish PEN-Plus clinics in one or two district hospitals, (2) support these clinics to mature into training sites in preparation for national or state-level scale-up, and (3) work with the national or state-level stakeholders to describe, measure and advocate for PEN-Plus to support development of a national operational plan for scale-up.Methods and analysis Guided by Proctor outcomes for implementation research, we are conducting a mixed-method evaluation consisting of 10 components to understand outcomes in clinical implementation, training and policy development. Data will be collected through a mix of quantitative surveys, routine reporting, routine clinical data and qualitative interviews.Ethics and dissemination This protocol has been considered exempt or covered by central and local institutional review boards. Findings will be disseminated throughout the project’s course, including through quarterly M&E discussions, semiannual formative assessments, dashboard mapping of progress, quarterly newsletters, regular feedback loops with national stakeholders and publication in peer-reviewed journals.
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- 2024
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9. Health-related quality of life and hypertension in people with HIV on long-term antiretroviral therapy in Uganda.
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Charles Batte, Andrew Weil Semulimi, John Mukisa, Mariam Nakabuye, Jasper Nidoi, David Mukunya, Rosalind Parkes Ratanshi, Barbara Castelnuovo, Mohammed Lamorde, David Meya, William Checkley, Robert Kalyesubula, Trishul Siddharthan, and Joseph B Babigumira
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Medicine ,Science - Abstract
IntroductionThe presence of hypertension could reduce the health-related quality of life (HRQoL) of people with HIV (PWH). Yet, literature describing the HRQoL of PWH who have hypertension in Uganda is scarce making the design of locally adapted interventions cumbersome. In our study, we compared HRQoL scores of people with HIV with and without hypertension on long term antiretroviral therapy (ART) in Uganda.MethodsWe recruited 149 PWH with hypertension and 159 PWH without hypertension in the long-term ART cohort at an urban clinic in Kampala, Uganda. Data on socio-demographics were collected using an interviewer designed questionnaire while data on the World Health Organisation clinical stage viral load and CD4 count as well as ART duration were extracted from clinic electronic database and a generic EuroQol -5D- 5L (EQ-5D- 5L) and Medical Outcome Study (MOS-HIV) questionnaire used to collect HRQoL data. Data were summarized using descriptive statistics while inferential statistics were used to determine associations between key variables and HRQoL. Mann-Whitney U tests were used to compare HRQoL between groups of interest.ResultsOne hundred ninety (61.7%) participants were female. PWH who had hypertension were older (Mean ± SD: 53.7 ± 8.3 vs 49.9 ± 8.6, p value 70,000 UGX, (p value = 0.044), disclosure of the HIV status of the participants to their partner (p value = 0.026), and current history of smoking (p value = 0.029) were associated with low HRQoL scores.ConclusionAmong people with HIV, those with hypertension had lower HRQoL compared to those without. This calls for inclusion of quality-of-life assessment in the management of PWH who have been diagnosed with hypertension to identify those at risk and plan early interventions.
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- 2024
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10. Prevalence of chronic kidney disease among young people living with HIV in Sub Saharan Africa: A systematic review and meta-analysis.
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Esther M Nasuuna, Nicholus Nanyeenya, Davis Kibirige, Jonathan Izudi, Chido Dziva Chikwari, Robert Kalyesubula, Barbara Castelnuovo, Laurie A Tomlinson, and Helen A Weiss
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Medicine ,Science - Abstract
BackgroundGlobally, the prevalence of chronic kidney disease (CKD) is increasing among young people living with HIV (YPLHIV), with inconsistent estimates. Aggregated data on the prevalence of CKD are needed in sub-Saharan Africa (SSA) to inform strategies for early diagnosis and management. We conducted a systematic review and meta-analysis to estimate the pooled prevalence of CKD among YPLHIV in SSA.MethodsWe searched Medline/PubMed, EMBASE, African Index Medicus, and African Journals Online for articles reporting the prevalence of CKD among YPLHIV in SSA using predefined search strategies up to 15th January 2024. The reference lists of identified articles were checked for additional eligible studies. The eligibility criteria were studies among YPLHIV aged 10-24 years reporting CKD prevalence defined by either glomerular filtration rate (GFR), albumin-to-creatinine ratio (ACR) or proteinuria. We used a narrative synthesis to report differences between the included studies. The DerSimonian-Laird random effects model was used to pool the CKD prevalence, and heterogeneity was assessed using the Cochrane Q-test and I-squared values. We assessed the risk of bias in each article using the Joanna Briggs Institute checklist and publication bias in a funnel plot and Egger's test.ResultsOf 802 retrieved articles, 15 fulfilled the eligibility criteria and were included in the meta-analysis. Of these, 12 (80%) were cross-sectional studies that used estimated GFR to diagnose CKD. Only one study followed the standard definition of CKD. The pooled CKD prevalence from 15 studies was 12% (95% CI 6.0-19.5%), ranging from 0.8% to 53.1% according to the definition used, with a high degree of heterogeneity (I2 = 97.7%, pConclusionCKD prevalence among YPLHIV is moderately high and highly heterogeneous across SSA. The standard definition of CKD should be used to enable estimation of CKD prevalence in different studies and settings. HIV programs enrolling YPLHIV should routinely screen for CKD to ensure early diagnosis and management.Trial registrationPROSPERO registration number: CRD42022347588.
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- 2024
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11. Principles for task shifting hypertension and diabetes screening and referral: a qualitative study exploring patient, community health worker and healthcare professional perceptions in rural Uganda
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Rebecca Ingenhoff, Richard Munana, Ivan Weswa, Julia Gaal, Isaac Sekitoleko, Hillary Mutabazi, Benjamin E. Bodnar, Tracy L. Rabin, Trishul Siddharthan, Robert Kalyesubula, Felix Knauf, and Christine K. Nalwadda
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Community health workers ,Perceptions ,Task shifting ,Screening ,Referral ,Hypertension ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background A shortage of healthcare workers in low- and middle-income countries (LMICs) combined with a rising burden of non-communicable diseases (NCDs) like hypertension and diabetes mellitus has resulted in increasing gaps in care delivery for NCDs. As community health workers (CHWs) often play an established role in LMIC healthcare systems, these programs could be leveraged to strengthen healthcare access. The objective of this study was to explore perceptions of task shifting screening and referral for hypertension and diabetes to CHWs in rural Uganda. Methods This qualitative, exploratory study was conducted in August 2021 among patients, CHWs and healthcare professionals. Through 24 in-depth interviews and ten focus group discussions, we investigated perceptions of task shifting to CHWs in the screening and referral of NCDs in Nakaseke, rural Uganda. This study employed a holistic approach targeting stakeholders involved in the implementation of task shifting programs. All interviews were audio-recorded, transcribed verbatim, and analyzed thematically guided by the framework method. Results Analysis identified elements likely to be required for successful program implementation in this context. Fundamental drivers of CHW programs included structured supervision, patients’ access to care through CHWs, community involvement, remuneration and facilitation, as well as building CHW knowledge and skills through training. Additional enablers comprised specific CHW characteristics such as confidence, commitment and motivation, as well as social relations and empathy. Lastly, socioemotional aspects such as trust, virtuous behavior, recognition in the community, and the presence of mutual respect were reported to be critical to the success of task shifting programs. Conclusion CHWs are perceived as a useful resource when task shifting NCD screening and referral for hypertension and diabetes from facility-based healthcare workers. Before implementation of a task shifting program, it is essential to consider the multiple layers of needs portrayed in this study. This ensures a successful program that overcomes community concerns and may serve as guidance to implement task shifting in similar settings.
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- 2023
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12. Design Research to Embed mHealth into a Community-Led Blood Pressure Management System in Uganda: Protocol for a Mixed Methods Study
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Josephine Schwab, Jonas Wachinger, Richard Munana, Maxencia Nabiryo, Isaac Sekitoleko, Juliette Cazier, Rebecca Ingenhoff, Caterina Favaretti, Vasanthi Subramonia Pillai, Ivan Weswa, John Wafula, Julius Valentin Emmrich, Till Bärnighausen, Felix Knauf, Samuel Knauss, Christine K Nalwadda, Nikkil Sudharsanan, Robert Kalyesubula, and Shannon A McMahon
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Medicine ,Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
BackgroundUncontrolled hypertension is a leading risk factor for cardiovascular diseases. In Uganda, such diseases account for approximately 10% of all deaths, with 1 in 5 adults having hypertension (>90% of the hypertensive cases are uncontrolled). Although basic health care in the country is available free of cost at government facilities, regularly accessing medication to control hypertension is difficult because supply chain challenges impede availability. Clients therefore frequently suspend treatment or buy medication individually at private facilities or pharmacies (incurring significant costs). In recent years, mobile health (mHealth) interventions have shown increasing potential in addressing health system challenges in sub-Saharan Africa, but the acceptability, feasibility, and uptake conditions of mobile money approaches to chronic disease management remain understudied. ObjectiveThis study aims to design and pilot-test a mobile money–based intervention to increase the availability of antihypertensive medication and lower clients’ out-of-pocket payments. We will build on existing local approaches and assess the acceptability, feasibility, and uptake of the designed intervention. Furthermore, rather than entering the study setting with a ready-made intervention, this research will place emphasis on gathering applied ethnographic insights early, which can then inform the parameters of the intervention prototype and concurrent trial. MethodsWe will conduct a mixed methods study following a human-centered design approach. We will begin by conducting extensive qualitative research with a range of stakeholders (clients; health care providers; religious, cultural, and community leaders; academics; and policy makers at district and national levels) on their perceptions of hypertension management, money-saving systems, and mobile money in the context of health care. Our results will inform the design, iterative adaptation, and implementation of an mHealth-facilitated pooled financing intervention prototype. At study conclusion, the finalized prototype will be evaluated quantitatively via a randomized controlled trial. ResultsAs of August 2023, qualitative data collection, which started in November 2022, is ongoing, with data analysis of the first qualitative interviews underway to inform platform and implementation design. Recruitment for the quantitative part of this study began in August 2023. ConclusionsOur results aim to inform the ongoing discourse on novel and sustainable pathways to facilitate access to medication for the management of hypertension in resource-constrained settings. Trial RegistrationGerman registry of clinical trials DRKS00030922; https://drks.de/search/en/trial/DRKS00030922 International Registered Report Identifier (IRRID)DERR1-10.2196/46614
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- 2023
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13. Genome-wide association analysis of cystatin-C kidney function in continental AfricaResearch in context
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Richard Mayanja, Tafadzwa Machipisa, Opeyemi Soremekun, Abram B. Kamiza, Christopher Kintu, Allan Kalungi, Robert Kalyesubula, Obondo J. Sande, Daudi Jjingo, June Fabian, Cassianne Robinson-Cohen, Nora Franceschini, Dorothea Nitsch, Moffat Nyirenda, Eleftheria Zeggini, Andrew P. Morris, Tinashe Chikowore, and Segun Fatumo
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Cystatin-C ,Estimated glomerular filtration rate ,Kidney function ,Genome-wide association study ,Fine-mapping ,Continental Africa ,Medicine ,Medicine (General) ,R5-920 - Abstract
Summary: Background: Chronic kidney disease is becoming more prevalent in Africa, and its genetic determinants are poorly understood. Creatinine-based estimated glomerular filtration rate (eGFR) is commonly used to estimate kidney function, modelling the excretion of the endogenous biomarker (creatinine). However, eGFR based on creatinine has been shown to inadequately detect individuals with low kidney function in Sub-Saharan Africa, with eGFR based on cystatin-C (eGFRcys) exhibiting significantly superior performance. Therefore, we opted to conduct a GWAS for eGFRcys. Methods: Using the Uganda Genomic Resource, we performed a genome-wide association study (GWAS) of eGFRcys in 5877 Ugandans and evaluated replication in independent studies. Subsequently, putative causal variants were screened through Bayesian fine-mapping. Functional annotation of the GWAS loci was performed using Functional Mapping and Annotation (FUMA). Findings: Three independent lead single nucleotide polymorphisms (SNPs) (P-value 99%. The rs911119 SNP maps to the cystatin C gene and has been previously associated with eGFRcys among Europeans. With gene-set enrichment analyses of the olfactory receptor family 51 overlapping genes, we identified an association with the G-alpha-S signalling events. Interpretation: Our study found two previously unreported associated SNPs for eGFRcys in continental Africans (rs59288815 and rs4277141) and validated a previously well-established SNP (rs911119) for eGFRcys. The identified gene-set enrichment for the G-protein signalling pathways relates to the capacity of the kidney to readily adapt to an ever-changing environment. Additional GWASs are required to represent the diverse regions in Africa. Funding: Wellcome (220740/Z/20/Z).
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- 2023
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14. ACCESS model: a step toward an empowerment model in global health education
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Robert Kalyesubula, Mitra Sadigh, Bernard Okong, Richard Munana, Ivan Weswa, Estherloy A. Katali, James Sewanyana, Janice Levine, and Majid Sadigh
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global health education ,ACCESS-Uganda model ,decolonization ,infrastructure ,learning ,Education (General) ,L7-991 - Abstract
The approaches to global health (GH) partnerships are as varied as the programs available across the globe. Few models have shared their philosophy and structure in sufficient detail to inform a full spectrum of how these collaborations are formed. Although contributions from low- to middle-income countries (LMICs) have markedly grown over the last decade, they are still few in comparison to those from high-income countries (HICs). In this article, we share the African Community Center for Social Sustainability (ACCESS) model of GH education through the lenses of grassroots implementers and their international collaborators. This model involves the identification and prioritization of the needs of the community, including but not limited to healthcare. We invite international partners to align with and participate in learning from and, when appropriate, becoming part of the solution. We share successes, challenges, and takeaways while offering recommendations for consideration when establishing community-driven GH programs.
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- 2023
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15. HIV, tuberculosis, diabetes mellitus and hypertension admissions and premature mortality among adults in Uganda from 2011 to 2019: is the tide turning?
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Andrew Kazibwe, Kuteesa Ronald Bisaso, Andrew Peter Kyazze, Sandra Ninsiima, Phillip Ssekamatte, Felix Bongomin, Joseph Baruch Baluku, Davis Kibirige, George Patrick Akabwai, Moses R. Kamya, Harriet Mayanja-Kizza, Pauline Byakika-Kibwika, Magid Kagimu, Robert Kalyesubula, and Irene Andia-Biraro
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Trend ,Premature mortality ,Inpatient ,HIV ,Tuberculosis ,Diabetes mellitus ,Arctic medicine. Tropical medicine ,RC955-962 - Abstract
Abstract Background The growing burden of diabetes mellitus (DM) and hypertension (HTN) on the background of endemic Human Immuno-deficiency Virus (HIV) and tuberculosis (TB) is a concern in low- and middle-income countries. We aimed to describe annual trends in admissions, mortality rates and premature mortality (years of potential life lost—YPLLs) due to HIV, tuberculosis (TB), diabetes mellitus (DM) and hypertension (HTN) in Uganda. Methods We conducted a retrospective cohort study, retrieving electronic records of adults admitted to Mulago and Kiruddu national referral hospitals medical wards between 1st January 2011 and 31st December 2019. We used STATA BE 17.0 and GraphPad Prism 8.0.2 to compute total admissions, inpatient crude mortality rates, and YPLLs; and demonstrate trends using Mann–Kendall test. Results Of 108,357 admissions, 55,620 (51.3%) were female, 15,300 (14.1%) were recorded in 2012, and 22,997 (21.2%) were aged 21–30 years. HIV, TB, DM and HTN accounted for 26,021 (24.0%); 9537 (8.8%); 13,708 (12.7) and 13,252 (12.2%) of all admissions, respectively. Overall inpatient mortality was 16.7% (18,099/108,357), 53.5% (9674/18,099) were male, 21.5% (3898) were aged 31–40 years and 2597 (14.4%) were registered in 2013. HIV, TB, DM and HTN accounted for 35.6% (6444), 14.6% (2646), 9.1% (1648) and 11.8% (2142) of all deaths, respectively. Total admissions (Kendall’s tau-B = − 0.833, p
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- 2022
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16. Effectiveness of a community health worker-delivered care intervention for hypertension control in Uganda: study protocol for a stepped wedge, cluster randomized control trial
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Rebecca Ingenhoff, Juliet Nandawula, Trishul Siddharthan, Isaac Ssekitoleko, Richard Munana, Benjamin E. Bodnar, Ivan Weswa, Bruce J. Kirenga, Gerald Mutungi, Markus van der Giet, Robert Kalyesubula, and Felix Knauf
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Hypertension ,Community health workers ,Uncontrolled blood pressure ,Cluster randomized control trial ,Uganda ,Medicine (General) ,R5-920 - Abstract
Abstract Background Over 80% of the morbidity and mortality related to non-communicable diseases (NCDs) occurs in low-income and middle-income countries (LMICs). Community health workers (CHWs) may improve disease control and medication adherence among patients with NCDs in LMICs, particularly in sub-Saharan African settings. In Uganda, and the majority of LMICs, management of uncontrolled hypertension remains limited in constrained health systems. Intervening at the primary care level, using CHWs to improve medical treatment outcomes has not been well studied. We aim to determine the effectiveness of a CHW-led intervention in blood pressure control among confirmed hypertensive patients and patient-related factors associated with uncontrolled hypertension. Methods We will conduct a stepped-wedge cluster randomized controlled trial study of 869 adult patients with hypertension attending two NCD clinics to test the effectiveness, acceptability, and fidelity of a CHW-led intervention. The multi-component intervention will be centered on monthly household visits by trained CHWs for a period of 1 year, consisting of the following: (1) blood pressure and sugar monitoring, (2) BMI monitoring, (3) cardiovascular disease risk assessment, (4) using checklists to guide monitoring and referral to clinics, and (5) healthy lifestyle counseling and education. During home visits, CHWs will remind patients of follow-up visits. We will measure blood pressure at baseline and 3-monthly for the entire cohort. We will conduct individual-level mixed effects analyses of study data, adjusting for time and clustering by patient and community. Conclusion The results of this study will inform community delivered HTN management across a range of LMIC settings. Trial registration ClinicalTrials.gov NCT05068505 . Registered on October 6, 2021.
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- 2022
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17. Acute kidney injury in hospitalized children with sickle cell anemia
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Anthony Batte, Sahit Menon, John Ssenkusu, Sarah Kiguli, Robert Kalyesubula, Joseph Lubega, Edrisa Ibrahim Mutebi, Robert O. Opoka, Chandy C. John, Michelle C. Starr, and Andrea L. Conroy
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Sickle cell anemia ,Acute kidney injury ,Children ,Sub-Saharan Africa ,Vaso-occlusive crises ,Malaria ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Background Children with sickle cell anemia (SCA) are at increased risk of acute kidney injury (AKI) that may lead to death or chronic kidney disease. This study evaluated AKI prevalence and risk factors in children with SCA hospitalized with a vaso-occlusive crisis (VOC) in a low-resource setting. Further, we evaluated whether modifications to the Kidney Disease: Improving Global Outcomes (KDIGO) definition would influence clinical outcomes of AKI in children with SCA hospitalized with a VOC. Methods We prospectively enrolled 185 children from 2 – 18 years of age with SCA (Hemoglobin SS) hospitalized with a VOC at a tertiary hospital in Uganda. Kidney function was assessed on admission, 24–48 h of hospitalization, and day 7 or discharge. Creatinine was measured enzymatically using an isotype-dilution mass spectrometry traceable method. AKI was defined using the original-KDIGO definition as ≥ 1.5-fold change in creatinine within seven days or an absolute change of ≥ 0.3 mg/dl within 48 h. The SCA modified-KDIGO (sKDIGO) definition excluded children with a 1.5-fold change in creatinine from 0.2 mg/dL to 0.3 mg/dL. Results Using KDIGO, 90/185 (48.7%) children had AKI with 61/185 (33.0%) AKI cases present on admission, and 29/124 (23.4%) cases of incident AKI. Overall, 23 children with AKI had a 1.5-fold increase in creatinine from 0.2 mg/dL to 0.3 m/dL. Using the sKDIGO-definition, 67/185 (36.2%) children had AKI with 43/185 (23.2%) cases on admission, and 24/142 (16.9%) cases of incident AKI. The sKDIGO definition, but not the original-KDIGO definition, was associated with increased mortality (0.9% vs. 7.5%, p = 0.024). Using logistic regression, AKI risk factors included age (aOR, 1.10, 95% CI 1.10, 1.20), hypovolemia (aOR, 2.98, 95% CI 1.08, 8.23), tender hepatomegaly (aOR, 2.46, 95% CI 1.05, 5.81), and infection (aOR, 2.63, 95% CI 1.19, 5.81) (p
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- 2022
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18. The causal effects of lipid traits on kidney function in Africans: bidirectional and multivariable Mendelian-randomization studyResearch in context
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Christopher Kintu, Opeyemi Soremekun, Abram B. Kamiza, Allan Kalungi, Richard Mayanja, Robert Kalyesubula, Bernard Bagaya S, Daudi Jjingo, June Fabian, Dipender Gill, Moffat Nyirenda, Dorothea Nitsch, Tinashe Chikowore, and Segun Fatumo
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Serum lipids ,eGFR ,Chronic kidney disease ,Kidney function ,Two-sample Mendelian Randomization ,Medicine ,Medicine (General) ,R5-920 - Abstract
Summary: Background: Observational studies have investigated the effect of serum lipids on kidney function, but these findings are limited by confounding, reverse causation and have reported conflicting results. Mendelian randomization (MR) studies address this confounding problem. However, they have been conducted mostly in European ancestry individuals. We, therefore, set out to investigate the effect of lipid traits on the estimated glomerular filtration rate (eGFR) based on serum creatinine in individuals of African ancestry. Methods: We used the two-sample and multivariable Mendelian randomization (MVMR) approaches; in which instrument variables (IV's) for the predictor (lipid traits) were derived from summary-level data of a meta-analyzed African lipid GWAS (MALG, n = 24,215) from the African Partnership for Chronic Disease Research (APCDR) (n = 13,612) & the Africa Wits-IN-DEPTH partnership for Genomics studies (AWI-Gen) dataset (n = 10,603). The outcome IV's were computed from the eGFR summary-level data of African-ancestry individuals within the Million Veteran Program (n = 57,336). A random-effects inverse variance method was used in our primary analysis, and pleiotropy was adjusted for using robust and penalized sensitivity testing. The lipid predictors for the MVMR were high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, and triglycerides (TG). Findings: We found a significant causal association between genetically predicted low-density lipoprotein (LDL) cholesterol and eGFR in African ancestry individuals β = 1.1 (95% CI [0.411–1.788]; p = 0.002). Similarly, total cholesterol (TC) showed a significant causal effect on eGFR β = 1.619 (95% CI [0.412–2.826]; p = 0.009). However, the IVW estimate showed that genetically predicted HDL-C β = −0.164, (95% CI = [−1.329 to 1.00]; p = 0.782), and TG β = −0.934 (CI = [−2.815 to 0.947]; p = 0.33) were not significantly causally associated with the risk of eGFR. In the multivariable analysis inverse-variance weighted (MVIVW) method, there was evidence for a causal association between LDL and eGFR β = 1.228 (CI = [0.477–1.979]; p = 0.001). A significant causal effect of Triglycerides (TG) on eGFR in the MVIVW analysis β = −1.3 ([−2.533 to −0.067]; p = 0.039) was observed as well. All the causal estimates reported reflect a unit change in the outcome per a 1 SD increase in the exposure. HDL showed no evidence of a significant causal association with eGFR in the MVIVW method (β = −0.117 (95% CI [−1.252 to 0.018]; p = 0.840)). We found no evidence of a reverse causal impact of eGFR on serum lipids. All our sensitivity analyses indicated no strong evidence of pleiotropy or heterogeneity between our instrumental variables for both the forward and reverse MR analysis. Interpretation: In this African ancestry population, genetically predicted higher LDL-C and TC are causally associated with higher eGFR levels, which may suggest that the relationship between LDL, TC and kidney function may be U-shaped. And as such, lowering LDL_C does not necessarily improve risk of kidney disease. This may also imply the reason why LDL_C is seen to be a poorer predictor of kidney function compared to HDL. In addition, this further supports that more work is warranted to confirm the potential association between lipid traits and risk of kidney disease in individuals of African Ancestry. Funding: Wellcome (220740/Z/20/Z).
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- 2023
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19. Mineral bone disorders and kidney disease in hospitalized children with sickle cell anemia
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Anthony Batte, Philip Kasirye, Reagan Baluku, Sarah Kiguli, Robert Kalyesubula, Chandy C. John, Andrew L. Schwaderer, Erik A. Imel, and Andrea L. Conroy
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mineral bone disease ,acute kidney injury ,sickle cell anemia (SCA) ,mortality ,pediatrics ,acute kidney disease (AKD) ,Pediatrics ,RJ1-570 - Abstract
BackgroundMineral bone disorders (MBD) are common in sickle cell anemia (SCA). Frequent vaso-occlusive crises (VOC) further impact MBD in children with SCA. We evaluated the prevalence of markers of SCA-related MBD (sMBD) in hospitalized children and assessed the relationship between sMBD and individual mineral abnormalities with kidney disease.MethodsWe prospectively recruited 185 children with SCA hospitalized with a VOC. Serum measures of mineral bone metabolism (calcium, phosphate, parathyroid hormone, 25-hydroxy vitamin D, FGF23, osteopontin) were measured at enrollment. The primary outcome was markers of sMBD defined as a composite of hypocalcemia, hyperphosphatemia, hyperparathyroidism, or deficiency in 25-OH vitamin D. Secondary outcomes included individual abnormalities in mineral metabolism. The Kidney Disease: Improving Global Outcomes (KDIGO) guidelines were used to define SCA-associated acute kidney injury (AKI). AKI was further assessed using urine NGAL as a marker of tubular injury. Acute kidney disease (AKD) was defined as a composite of AKI, an eGFR
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- 2023
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20. Cross-sectional validation of the COPD Assessment Test (CAT) among chronic obstructive pulmonary disease patients in rural Uganda.
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Charles Batte, Andrew Weil Semulimi, Ronald Kasoma Mutebi, Nelson Twinamasiko, Sarah Racheal Muyama, John Mukisa, Immaculate Atukunda, David Mukunya, Robert Kalyesubula, Siddharthan Trishul, and Bruce Kirenga
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Public aspects of medicine ,RA1-1270 - Abstract
Measuring quality of life is a key component in the management of Chronic Obstructive Pulmonary Disease (COPD). The COPD assessment test (CAT), an easy to administer and shorter instrument than the standard Saint George's respiratory questionnaire (SGRQ), could be an alternative tool for measuring the quality of life of COPD patients in rural Uganda. A cross-sectional study was conducted between June and August 2022, consecutively recruiting 113 COPD patients aged > 40 years from the Low-Dose Theophylline for the management of Biomass-associated COPD (LODOT-BCOPD) study. Upon obtaining consent, participants answered an interviewer administered social demographic, CAT and SGRQ questionnaire. Internal consistency for both SGRQ and CAT was determined using Cronbach's alpha coefficient and values > 0.7 were considered acceptable while correlations were determined using Spearman's rank correlation. Limits of Agreement were visualised using Bland Altman and pair plots. Of the 113 participants, 51 (45.1%) were female. The mean age was 64 ± 12 years, 19 (16.8%) had history of smoking while majority (112 (99.1%)) reported use of firewood for cooking. There was a strong correlation of 0.791 (p < 0.001) between the CAT and SGRQ total scores with a high internal consistency of CAT, Cronbach's alpha coefficient of 0.924 (0.901-0.946). The agreement between the absolute CAT scores and the SGRQ scores was good with a mean difference of -0.932 (95% Confidence Interval: -33.49-31.62). In summary, CAT has an acceptable validity and can be used as an alternative to the SGRQ to assess the quality of life of COPD patients in rural Uganda.
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- 2023
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21. Self-care and healthcare seeking practices among patients with hypertension and diabetes in rural Uganda
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Andrew K. Tusubira, Isaac Ssinabulya, Robert Kalyesubula, Christine K. Nalwadda, Ann R. Akiteng, Christine Ngaruiya, Tracy L. Rabin, Anne Katahoire, Mari Armstrong-Hough, Evelyn Hsieh, Nicola L. Hawley, and Jeremy I. Schwartz
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Public aspects of medicine ,RA1-1270 - Published
- 2023
22. The rural Uganda non-communicable disease (RUNCD) study: prevalence and risk factors of self-reported NCDs from a cross sectional survey
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Trishul Siddharthan, Robert Kalyesubula, Brooks Morgan, Theresa Ermer, Tracy L. Rabin, Alex Kayongo, Richard Munana, Nora Anton, Katharina Kast, Elke Schaeffner, Bruce Kirenga, Felix Knauf, and Rural Uganda Non Communicable Disease Study Investigators
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Non-communicable diseases ,Rural ,Low- and middle-income countries ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Non-communicable diseases (NCDs) are an increasing global concern, with morbidity and mortality largely occurring in low- and middle-income settings. We established the prospective Rural Uganda Non-Communicable Disease (RUNCD) cohort to longitudinally characterize the NCD prevalence, progression, and complications in rural Africa. Methods We conducted a population-based census for NCD research. We systematically enrolled adults in each household among three sub-counties of the larger Nakaseke Health district and collected baseline demographic, health status, and self-reported chronic disease information. We present our data on self-reported chronic disease, as stratified by age, sex, educational attainment, and sub-county. Results A total of 16,694 adults were surveyed with 10,563 (63%) respondents enrolled in the self-reported study. Average age was 37.8 years (SD = 16.5) and 45% (7481) were male. Among self-reported diseases, hypertension (HTN) was most prevalent (6.3%). 1.1% of participants reported a diagnosis of diabetes, 1.1% asthma, 0.7% COPD, and 0.4% kidney disease. 2.4% of the population described more than one NCD. Self-reported HTN was significantly higher in the peri-urban subcounty than in the other two rural sub-counties (p
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- 2021
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23. Acceptability of patient-centered hypertension education delivered by community health workers among people living with HIV/AIDS in rural Uganda
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Charles Batte, John Mukisa, Natalie Rykiel, David Mukunya, William Checkley, Felix Knauf, Robert Kalyesubula, and Trishul Siddharthan
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Acceptability ,PLWHA ,Patient education ,PocketDoktor™ ,Hypertension ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background The prevalence of hypertension is increasing among people living with HIV/AIDS (PLWHA) in low- and middle-income countries (LMICs). However, knowledge of the complications and management of hypertension among PLWHA in Uganda remains low. We explored the acceptability of implementing hypertension (HTN) specific health education by community health workers (CHWs) among PLWHA in rural Uganda. Methods We conducted a qualitative study consisting of 22 in-depth interviews (14 PLWHA/HTN and 8 CHWs), 3 focus group discussions (FGDs), 2 with PLWHA/HTN and 1 with CHWs from Nakaseke district, Uganda. Participants were interviewed after a single session interaction with the CHW. Data were transcribed from luganda (local language) into English and analyzed using thematic analysis. We used Sekhon’s model of acceptability of health Interventions to explore participants’ perceptions. Results Participants believed CHWs utilized easy-to-understand, colloquial, non-technical language during education delivery, had a pre-existing rapport with the CHWs that aided faster communication, and had more time to explain illness than medical doctors had. Participants found the educational material (PocketDoktor™) to be simple and easy to understand, and perceived that the education would lead to improved health outcomes. Participants stated their health was a priority and sought further disease-specific information. We also found that CHWs were highly motivated to carry out the patient-centered education. While delivering the education, CHWs experienced difficulties in keeping up with the technical details regarding hypertension in the PocketDoktor™, financial stress and patient questions beyond their self-perceived skill level and experience. PLWHA/HTN had challenges accessing the health facility where the intervention was delivered and preferred a household setting. Conclusions Hypertension patient-centered education delivered by CHWs using the PocketDoktor™ was acceptable to PLWHA and hypertension in Nakaseke area in rural, Uganda. There is need for further studies to determine the cost implications of delivering this intervention among PLWHA across LMIC settings.
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- 2021
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24. Comparison of the health-related quality of life of end stage kidney disease patients on hemodialysis and non-hemodialysis management in Uganda
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Peace Bagasha, Elizabeth Namukwaya, Mhoira Leng, Robert Kalyesubula, Edrisa Mutebi, Ronald Naitala, Elly Katabira, and Mila Petrova
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Quality of life [MeSH] ,Kidney failure ,Chronic [MeSH] ,Palliative care [MeSH] ,Renal Dialysis [MeSH] ,Developing countries [MeSH] ,Special situations and conditions ,RC952-1245 - Abstract
Abstract Background Health-related quality of life is recognized as a key outcome in chronic disease management, including kidney disease. With no national healthcare coverage for hemodialysis, Ugandan patients struggle to pay for their care, driving families and communities into poverty. Studies in developed countries show that patients on hemodialysis may prioritize quality of life over survival time, but there is a dearth of information on this in developing countries. We therefore measured the quality of life (QOL) and associated factors in end stage renal disease (ESRD) patients in a major tertiary care hospital in Uganda. Methods Baseline QOL measurement in a longitudinal cohort study was undertaken using the Kidney Disease Quality of Life Short Form Ver 1.3. Patients were recruited from the adult nephrology unit if aged > 18 years with an estimated glomerular filtration rate ≤ 15mls/min/1,73m2. Clinical, demographic and micro-financial information was collected to determine factors associated with QOL scores. Results Three hundred sixty-four patients (364) were recruited, of whom 124 were on hemodialysis (HD) and 240 on non-hemodialysis (non-HD) management. Overall, 94.3% of participants scored less than 50 (maximum 100). Mean QOL scores were low across all three principal domains: physical health (HD: 33.14, non-HD: 34.23), mental health (HD: 38.01, non-HD: 38.02), and kidney disease (HD: 35.16, non-HD: 34.00). No statistically significant difference was found between the overall quality of life scores of the two management groups. Breadwinner status (p
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- 2021
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25. Youths’ perceptions of community health workers’ delivery of family planning services: a cross-sectional, mixed-methods study in Nakaseke District, Uganda
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Robert Kalyesubula, Jessica Mitter Pardo, Stephanie Yeh, Richard Munana, Ivan Weswa, Joseph Adducci, Faith Nassali, Mennen Tefferi, John Mundaka, and Sahai Burrowes
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Adolescents ,Family planning ,Contraception ,Reproductive health ,Community health workers ,Uganda ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background High rates of unintended adolescent pregnancy are a significant health problem in Uganda. To improve access to family planning (FP) services, community-based Village Health Teams (VHTs) are widely employed in Uganda to deliver education and services. However, evaluations of FP programs suggest that mainly older, married women use VHT FP services. Methods To better understand youth reluctance to use VHTs, we collected quantitative FP and contraceptive-seeking behavior data from a survey of 250 youths aged 15–25 in randomly selected households in Nakaseke District, which we triangulated with data from 3 focus group discussions (FGDs) (n = 15). Results Most respondents received FP services from the formal health sector, not VHTs. Only half had talked to a VHT, but 65% knew that VHTs provide free FP services, and most (82%) felt comfortable talking to VHTs about FP. The main reasons for discomfort were fear that VHTs would violate privacy (mentioned by 60% of those not comfortable), that VHTs would talk to parents (33%), shyness (mentioned by 42% of those ≤18), and fear of being judged (14%). Concern about side effects was the most common reason for not using FP methods. Survey respondents said having VHTs of the same sex was important, particularly those in the youngest age group (OR = 4.45; 95%CI: 1.24, 16.00) and those who were unmarried (OR = 5.02; 95%CI: 2.42, 10.39). However, FGD participants (who were older than survey respondents on average) often preferred older VHTs of the opposite sex, whom they viewed as more professional and trustworthy. Respondents said the primary deciding factors for using VHTs were whether privacy would be respected, the proximity of care, and the respectfulness of care. Conclusions VHTs are a known source of FP services but not widely used by youth due to privacy and quality of care concerns. VHT messaging and training should increase focus on ensuring privacy, protecting confidentiality, providing respectful care, and addressing concerns about contraceptive side effects. Preferences for VHTs of similar age and sex may be more important for younger adolescents than older youths for whom quality concerns predominate.
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- 2021
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26. Effectiveness of low-dose theophylline for the management of biomass-associated COPD (LODOT-BCOPD): study protocol for a randomized controlled trial
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Trishul Siddharthan, Suzanne L. Pollard, Peter Jackson, Nicole M. Robertson, Adaeze C. Wosu, Nihaal Rahman, Roma Padalkar, Isaac Sekitoleko, Esther Namazzi, Patricia Alupo, John R. Hurst, Robert Kalyesubula, David Dowdy, Robert Wise, Peter J. Barnes, William Checkley, and Bruce Kirenga
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Biomass ,COPD ,Theophylline ,Medicine (General) ,R5-920 - Abstract
Abstract Background COPD is a leading cause of death globally, with the majority of morbidity and mortality occurring in low- and middle-income country (LMIC) settings. While tobacco-smoke exposure is the most important risk factor for COPD in high-income settings, household air pollution from biomass smoke combustion is a leading risk factor for COPD in LMICs. Despite the high burden of biomass smoke-related COPD, few studies have evaluated the efficacy of pharmacotherapy in this context. Currently recommended inhaler-based therapy for COPD is neither available nor affordable in most resource-limited settings. Low-dose theophylline is an oral, once-a-day therapy, long used in high-income countries (HICs), which has been proposed for the management of COPD in LMICs in the absence of inhaled steroids and/or bronchodilators. The Low-dose Theophylline for the Management of Biomass-Associated COPD (LODOT-BCOPD) trial investigates the clinical efficacy and cost-effectiveness of low-dose theophylline for the management of biomass-related COPD in a low-income setting. Methods LODOT-BCOPD is a randomized, double-blind, placebo-controlled trial to test the efficacy of low-dose theophylline in improving respiratory symptoms in 110 participants with moderate to severe COPD in Central Uganda. The inclusion criteria are as follows: (1) age 40 to 80 years, (2) full-time resident of the study area, (3) daily biomass exposure, (4) post-bronchodilator FEV1/FVC below the 5th percentile of the Global Lung Initiative mixed ethnic reference population, and (5) GOLD Grade B-D COPD. Participants will be randomly assigned to receive once daily low-dose theophylline (200 mg ER, Unicontin-E) or placebo for 52 weeks. All participants will receive education about self-management of COPD and rescue salbutamol inhalers. We will measure health status using the St. George’s Respiratory Questionnaire (SGRQ) and quality of life using the EuroQol-5D (EQ-5D) at baseline and every 6 months. In addition, we will assess household air pollution levels, serum inflammatory biomarkers (fibrinogen, hs-CRP), and theophylline levels at baseline, 1 month, and 6 months. The primary outcome is change in SGRQ score at 12 months. Lastly, we will assess the cost-effectiveness of the intervention by calculating quality-adjusted life years (QALYs) from the EQ-5D. Trial registration ClinicalTrials.gov NCT03984188 . Registered on June 12, 2019 Trial acronym Low-dose Theophylline for the Management of Biomass-Associated COPD (LODOT-BCOPD)
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- 2021
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27. Patient preferences for facility-based management of hypertension and diabetes in rural Uganda: a discrete choice experiment
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Robert Kalyesubula, Isaac Ssinabulya, Rachel Nugent, Christine Ngaruiya, Nicola L Hawley, Dallas Wood, Baylah Tessier-Sherman, Deron Galusha, Mari Armstrong-Hough, Sarah EG Moor, Andrew K Tusubira, Ann R Akiteng, Evelyn Hsieh Donroe, Tracy L Rabin, Brenda D Nakirya, Christine Nalwadda, and Jeremy I Schwartz
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Medicine - Abstract
Objective To explore how respondents with common chronic conditions—hypertension (HTN) and diabetes mellitus (DM)—make healthcare-seeking decisions.Setting Three health facilities in Nakaseke District, Uganda.Design Discrete choice experiment (DCE).Participants 496 adults with HTN and/or DM.Main outcome measures Willingness to pay for changes in DCE attributes: getting to the facility, interactions with healthcare providers, availability of medicines for condition, patient peer-support groups; and education at the facility.Results Respondents were willing to pay more to attend facilities that offer peer-support groups, friendly healthcare providers with low staff turnover and greater availabilities of medicines. Specifically, we found the average respondent was willing to pay an additional 77 121 Ugandan shillings (UGX) for facilities with peer-support groups over facilities with none; and 49 282 UGX for 1 month of medicine over none, all other things being equal. However, respondents would have to compensated to accept facilities that were further away or offered health education. Specifically, the average respondent would have to be paid 3929 UGX to be willing to accept each additional kilometre they would have to travel to the facilities, all other things being equal. Similarly, the average respondent would have to be paid 60 402 UGX to accept facilities with some health education, all other things being equal.Conclusions Our findings revealed significant preferences for health facilities based on the availability of medicines, costs of treatment and interactions with healthcare providers. Understanding patient preferences can inform intervention design to optimise healthcare service delivery for patients with HTN and DM in rural Uganda and other low-resource settings.
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- 2022
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28. Prevalence of microalbuminuria and associated factors among HIV − infected ART naïve patients at Mulago hospital: a cross-sectional study in Uganda
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Thomas Kiggundu, Robert Kalyesubula, Irene Andia-Biraro, Gyaviira Makanga, and Pauline Byakika-Kibwika
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HIV ,Microalbuminuria ,Uganda ,ART naïve ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Background HIV infection affects multiple organs and the kidney is a common target making renal disease, one of the recognized complications. Microalbuminuria represents an early, important marker of kidney damage in several populations including HIV-infected antiretroviral therapy (ART) naïve patients. Early detection of microalbuminuria is critical to slowing down progression to chronic kidney disease (CKD) in HIV-infected patients, however, the burden of microalbuminuria in HIV-infected antiretroviral therapy (ART) naïve patients in Uganda is unclear. Methods A cross-sectional study was conducted in the Mulago Immune suppression syndrome (ISS) clinic among adult HIV − infected ART naïve outpatients. Data on patient demographics, medical history was collected. Physical examination was performed to assess body mass index (BMI) and hypertension. A single spot morning urine sample from each participant was analysed for microalbuminuria using spectrophotometry and colorimetry. Microalbuminuria was defined by a urine albumin creatinine ratio (UACR) 30-299 mg/g and macroalbuminuria by a UACR > 300 mg/g. To assess the factors associated with microalbuminuria, chi-square, Fisher’s exact test, quantile regression and logistic regression were used. Results A total of 185 adult participants were consecutively enrolled with median age and CD4+ counts of 33(IQR = 28–40) years and 428 (IQR = 145–689) cells/μL respectively. The prevalence of microalbuminuria was 18.9% (95% CI, 14–25%). None of the participants had macroalbuminuria. CD4+ count
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- 2020
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29. Prevalence of renal dysfunction among HIV infected patients receiving Tenofovir at Mulago: a cross-sectional study
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Louis Nyende, Robert Kalyesubula, Emmanuel Sekasanvu, and Pauline Byakika-Kibwika
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Renal dysfunction ,Tenofovir disproxil fumarate ,Estimated glomerular filtration rate ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Background There is an increasing burden of non-communicable disease globally. Tenofovir disoproxil fumarate (TDF) is the most commonly prescribed antiretroviral drug globally. Studies show that patients receiving TDF are more prone to renal dysfunction at some point in time during treatment. Evaluation of kidney function is not routinely done in most HIV public clinics. Identification of renal dysfunction is key in resource constrained settings because managing patients with end stage renal disease is costly. Method This was a cross-sectional study conducted at an outpatient clinic in 2018 involving patients on TDF for at least 6 months who were 18 years or older. Patients with documented kidney disease and pregnancy were excluded. Estimated glomerular filtration rate (eGFR) was calculated using the CKD-Epi formula. Renal dysfunction was defined as any of the following; either eGFR
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- 2020
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30. Association of impaired kidney function with mortality in rural Uganda: results of a general population cohort study
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Robert Kalyesubula, Liam Smeeth, Laurie A Tomlinson, Janet Seeley, Robert Newton, Christian Holm Hansen, Keith Tomlin, Isaac Sekitoleko, Billy Ssebunya, Ronald Makanga, and Moses Kwizera Mbonye
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Medicine - Abstract
Objective To determine the association between baseline kidney function and subsequent all-cause mortality.Design and setting A general population-based cohort study from rural Uganda.Participants People aged 18 years and above with measured baseline estimated glomerular filtration rate (eGFR), recruited from survey rounds in 2011–2012 or 2014–2015 and followed up to March 2019.Outcome measure The primary outcome was all-cause mortality, identified through reports from community health workers and verified by verbal autopsy. The association between baseline eGFR category and mortality was determined using multivariable Cox regression.Results Of 5812 participants in both rounds, we included 5678 (97.7%) participants with kidney function and mortality data; the median age was 36 years (IQR 24–50), 60.7% were female, 10.3% were hypertensive, 9.8% were HIV-positive and 1.5% were diabetic. During a median follow-up of 5.0 years (IQR 3.7–6.0) there were 140 deaths. In age-adjusted and sex-adjusted analyses, eGFR 90 mL/min/1.73 m2. After inclusion of additional confounders (HIV, body mass index, diabetes, hypertension, alcohol and smoking status) into the model, eGFR
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- 2022
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31. Availability, affordability and access to essential medications for asthma and chronic obstructive pulmonary disease in three low- and middle-income country settings.
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Trishul Siddharthan, Nicole M Robertson, Natalie A Rykiel, Lindsay J Underhill, Nihaal Rahman, Sujan Kafle, Sakshi Mohan, Roma Padalkar, Sarah McKeown, Oscar Flores-Flores, Shumonta A Quaderi, Patricia Alupo, Robert Kalyesubula, Bruce Kirenga, Jing Luo, Maria Kathia Cárdenas, Gonzalo Gianella, J Jaime Miranda, William Checkley, John R Hurst, and Suzanne L Pollard
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Public aspects of medicine ,RA1-1270 - Abstract
IntroductionDespite the rising burden of chronic respiratory disease globally, and although many respiratory medications are included in the World Health Organization Essential Medications List (WHO-EML), there is limited information concerning the availability and affordability of treatment drugs for respiratory conditions in low- and middle-income countries (LMICs).MethodsAll public and private pharmacies in catchment areas of the Global Excellence in COPD outcomes (GECo) study sites in Bhaktapur, Nepal, Lima, Peru, and Nakaseke, Uganda, were approached in 2017-2019 to assess pricing and availability of medications for the management of asthma and COPD.ResultsWe surveyed all 63 pharmacies in respective study areas in Nepal (95.2% private), 104 pharmacies in Peru (94.2% private) and 53 pharmacies in Uganda (98.1% private). The availability of any medication for respiratory disease was higher in private (93.3%) compared to public (73.3%) pharmacies. Salbutamol (WHO-EML) monotherapy in any formulation was the most commonly available respiratory medication among the three sites (93.7% Nepal, 86.5% Peru and 79.2% Uganda) while beclomethasone (WHO-EML) was only available in Peru (33.7%) and Nepal (22%). LABA-LAMA combination therapy was only available in Nepal (14.3% of pharmacies surveyed). The monthly treatment cost of respiratory medications was lowest in Nepal according to several cost metrics: the overall monthly cost, the median price ratio comparing medication costs to international reference prices at time of survey in dollars, and in terms of days' wages of the lowest-paid government worker. For the treatment of intermittent asthma, defined as 100 mcg Salbutamol/Albuterol inhaler, days' wages ranged from 0.47 days in Nepal and Peru to 3.33 days in Uganda.ConclusionThe availability and pricing of respiratory medications varied across LMIC settings, with medications for acute care of respiratory diseases being more widely available than those for long-term management.
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- 2022
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32. How to estimate glomerular filtration rate in sub-Saharan Africa: design and methods of the African Research into Kidney Diseases (ARK) study
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Robert Kalyesubula, June Fabian, Wisdom Nakanga, Robert Newton, Billy Ssebunnya, Josephine Prynn, Jaya George, Alisha N. Wade, Janet Seeley, Dorothea Nitsch, Christian Hansen, Moffat Nyirenda, Liam Smeeth, Saraladevi Naicker, Amelia C. Crampin, and Laurie A. Tomlinson
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Measurement ,Glomerular filtration rate ,Chronic kidney disease ,Sub-Saharan Africa ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Background Chronic kidney disease (CKD) is a substantial cause of morbidity and mortality worldwide with disproportionate effects in sub-Saharan Africa (SSA). The optimal methods to estimate glomerular filtration rate (GFR) and therefore to determine the presence of CKD in SSA are uncertain. We plan to measure iohexol excretion to accurately determine GFR in Malawi, South Africa and Uganda. We will then assess the performance of existing equations to estimate GFR and determine whether a modified equation can better improve estimation of GFR in sub-Saharan Africa. Methods The African Research on Kidney Disease (ARK) study is a three-country study embedded within existing cohorts. We seek to enrol 3000 adults > 18 years based on baseline serum creatinine. Study procedures include questionnaires on socio-demographics and established risk factors for kidney disease along with anthropometry, body composition, blood pressure, blood chemistry and urine microscopy and albuminuria. We will measure GFR (mGFR) by plasma clearance of iohexol at 120, 180 and 240 min. We will compare eGFR determined by established equations with mGFR using Bland-Altman plots. We will use regression methods to estimate GFR and compare the newly derived model with existing equations. Discussion Through the ARK study, we aim to establish the optimal approach to estimate GFR in SSA. The study has the advantage of drawing participants from three countries, which will increase the applicability of the findings across the region. It is also embedded within established cohorts that have longitudinal information and serial measures that can be used to characterize kidney disease over a period of time. This will help to overcome the limitations of previous research, including small numbers, selected population sub-groups, and lack of data on proteinuria. The ARK collaboration provides an opportunity for close working partnerships across different centres, using standardized protocols and measurements, and shared bio-repositories. We plan to build on the collaboration for this study for future work on kidney disease in sub-Saharan Africa, and welcome additional partners from across the continent.
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- 2020
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33. Outsiders, insiders, and intermediaries: village health teams’ negotiation of roles to provide high quality sexual, reproductive and HIV care in Nakaseke, Uganda
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Samantha Perry, Cynthia D. Fair, Sahai Burrowes, Sarah Jane Holcombe, and Robert Kalyesubula
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Village health teams ,Uganda ,Roles ,Sexual and reproductive health ,HIV care ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Community health workers, known as Village Health Teams (VHTs) in Uganda, play a central role in increasing access to community-based health services. The objective of this research is to explore tensions that may emerge as VHTs navigate multiple roles as community members and care providers particularly when providing sensitive reproductive health and HIV care. Methods Twenty-five VHTs from a rural clinic in Uganda completed semi-structured interviews focused on experiences providing services. Interview questions focused on challenges VHTs face providing services and strategies for improving quality care. After translation from Luganda and transcription, interviews were analyzed using content analysis to identify emergent themes. Results Most VHTs were female (n = 16). The average age was 46, and average length of VHT work, 11 years. Analyses revealed that all VHTs capitalized upon the duality of their position, shifting roles depending upon context. Three themes emerged around VHTs’ perceptions of their roles: community insiders, professional outsiders, and intermediaries. A caregiver “insider” role facilitated rapport and discussion of sensitive issues. As community members, VHTs leveraged existing community structures to educate clients in familiar settings such as “drinking places”. However, this role posed challenges as some VHTs felt compelled to share their own resources including food and transport money. Occupying a professional outsider role offered VHTs respect. Their specialized knowledge gave them authority to counsel others on effective forms of family planning. However, some VHTs faced opposition, suspicions about their motives, and violence in this role. In balancing these two roles, the VHTs adopted a third as intermediaries, connecting the community to services in the formalized health care system. Participants suggested that additional training, ongoing supervision, and the opportunity to collaborate with other VHTs would help them better navigate their different roles and, ultimately, improve the quality of service. Conclusions As countries scale up family planning and HIV services using VHTs, supportive supervision and ethical dilemma training are recommended so VHTs are prepared for the challenges of assuming multiple roles within communities.
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- 2019
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34. Social Support for Self-Care: Patient Strategies for Managing Diabetes and Hypertension in Rural Uganda
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Andrew K. Tusubira, Christine K. Nalwadda, Ann R. Akiteng, Evelyn Hsieh, Christine Ngaruiya, Tracy L. Rabin, Anne Katahoire, Nicola L. Hawley, Robert Kalyesubula, Isaac Ssinabulya, Jeremy I. Schwartz, and Mari Armstrong-Hough
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Infectious and parasitic diseases ,RC109-216 ,Public aspects of medicine ,RA1-1270 - Abstract
Background: Low-income countries suffer a growing burden of non-communicable diseases (NCDs). Self-care practices are crucial for successfully managing NCDs to prevent complications. However, little is known about how patients practice self-care in resource-limited settings. Objective: We sought to understand self-care efforts and their facilitators among patients with diabetes and hypertension in rural Uganda. Methods: Between April and June 2019, we conducted a cross-sectional qualitative study among adult patients from outpatient NCD clinics at three health facilities in Uganda. We conducted in-depth interviews exploring self-care practices for hypertension and/or diabetes and used content analysis to identify emergent themes. Results: Nineteen patients participated. Patients said they preferred conventional medicines as their first resort, but often used traditional medicines to mitigate the impact of inconsistent access to prescribed medicines or as a supplement to those medicines. Patients adopted a wide range of vernacular practices to supplement treatment or replace unavailable diagnostic tests, such as tasting urine to gauge blood-sugar level. Finally, patients sought and received both instrumental and emotional support for self-care activities from networks of family and peers. Patients saw their children as their most reliable source of support facilitating self-care, especially as a source of money for medicines, transport and home necessities. Conclusion: Patients valued conventional medicines but engaged in varied self-care practices. They depended upon networks of social support from family and peers to facilitate self-care. Interventions to improve self-care may be more effective if they improve access to prescribed medicines and engage or enhance patients’ social support networks.
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- 2021
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35. Association between Blood Pressure and HIV Status in Rural Uganda: Results of Cross-Sectional Analysis
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Anxious J. Niwaha, Adaeze C. Wosu, Alex Kayongo, Charles Batte, Trishul Siddharthan, Robert Kalyesubula, Bruce Kirenga, and William Checkley
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hiv ,hypertension ,blood pressure ,non-communicable diseases ,ncds ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 ,Public aspects of medicine ,RA1-1270 - Abstract
Introduction: The association between HIV status and hypertension is not well described within sub-Saharan Africa. We examined prevalence and risk factors for hypertension among HIV positive and negative individuals living in a rural district of Uganda. Methods: We conducted a cross-sectional analysis in two concurrent cohorts of 600 HIV negative and 721 HIV seropositive individuals aged ≥35 years. Results: Of the 721 HIV positive participants, 59.8% were women and the median age was 44.3 years, while for HIV negative individuals, 55% were women and the median age was 47.8 years. Over 90% of HIV positive individuals were on antiretroviral treatment. The prevalence of hypertension (≥140/≥90 mmHg) was 33.5% in HIV negative individuals and 23.9% in HIV positive individuals. Age (adjusted OR = 1.05, 95% CI 1.03 to 1.06) and BMI (adjusted OR = 1.08, 95% CI 1.05 to 1.12) were associated with higher odds of hypertension. Having HIV was associated with lower odds of hypertension (adjusted OR = 0.66, 95% CI 0.50 to 0.88), lower systolic blood pressure (–5.1 mmHg, 95% CI: –7.4 to –2.4) and lower diastolic blood pressure (–4.0 mmHg, 95% CI: –5.6 to –2.5). We did not observe differences in the odds of hypertension by CD4 count, viral load or ART among HIV positive individuals in this sample. Conclusions: Hypertension was prevalent in one third of HIV negative individuals and in one fourth of HIV positive patients. While access to health information among individuals attending HIV clinics may explain observed differences, more research is needed to understand plausible biological and social mechanisms that could explain lower blood pressure among people living with HIV in Uganda.
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- 2021
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36. Challenges to hypertension and diabetes management in rural Uganda: a qualitative study with patients, village health team members, and health care professionals
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Haeyoon Chang, Nicola L. Hawley, Robert Kalyesubula, Trishul Siddharthan, William Checkley, Felix Knauf, and Tracy L. Rabin
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Hypertension ,Diabetes ,Uganda ,Rural health ,Chronic diseases ,Qualitative ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background The prevalence of hypertension and diabetes are expected to increase in sub-Saharan Africa over the next decade. Some studies have documented that lifestyle factors and lack of awareness are directly influencing the control of these diseases. Yet, few studies have attempted to understand the barriers to control of these conditions in rural settings. The main objective of this study was to understand the challenges to hypertension and diabetes care in rural Uganda. Methods We conducted semi-structured interviews with 24 patients with hypertension and/or diabetes, 11 health care professionals (HCPs), and 12 community health workers (known as village health team members [VHTs]) in Nakaseke District, Uganda. Data were coded using NVivo software and analyzed using a thematic approach. Results The results replicated several findings from other settings, and identified some previously undocumented challenges including patients’ knowledge gaps regarding the preventable aspects of HTN and DM, patients’ mistrust in the Ugandan health care system rather than in individual HCPs, and skepticism from both HCPs and patients regarding a potential role for VHTs in HTN and DM management. Conclusions In order to improve hypertension and diabetes management in this setting, we recommend taking actions to help patients to understand NCDs as preventable, for HCPs and patients to advocate together for health system reform regarding medication accessibility, and for promoting education, screening, and monitoring activities to be conducted on a community level in collaboration with village health team members.
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- 2019
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37. Self-care practices and needs in patients with hypertension, diabetes, or both in rural Uganda: a mixed-methods study
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Andrew K Tusubira, MPH, Christine K Nalwadda, PhD, Ann R Akiteng, MPH, Mari Armstrong-Hough, PhD, Evelyn Hsieh, MD, Christine Ngaruiya, MD, Tracy L Rabin, MD, Nicola Hawley, PhD, Kasia J Lipska, MD, Robert Kalyesubula, MMed, Isaac Ssinabulya, MMed, and Jeremy I Schwartz, MD
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Public aspects of medicine ,RA1-1270 - Abstract
Background: The prevalence of non-communicable diseases (NCDs) is increasing in rural sub-Saharan Africa. Implementation and adaptation of recommended self-care practices is crucial for successful management of NCDs to prevent complications. However, little is known about self-care practices in patients living in rural sub-Saharan Africa. In this study, we aimed to understand patients' adherence to self-care practices for hypertension, diabetes, or both, in rural Uganda and their reasons for non-adherence. Methods: We conducted a mixed-methods study in adult patients previously diagnosed with diabetes or hypertension, or both, who attended outpatient NCD clinics at three health facilities in Nakaseke district. We concurrently collected quantitative data from a random sample of patients using pretested, structured questionnaires and held focus group discussions and in-depth interviews with a purposive sample of patients. Descriptive statistics were calculated for the quantitative data. Qualitative analysis was conducted using a thematic approach. Findings: Between April and August, 2019, we administered questionnaires and carried out six focus group discussions and 19 in-depth interviews with 385 participants. Mean age was 54·0 years (SD 14·57) and most respondents, 257 (66·8%), were female. Of the 385 participants, 39·2% (151) had diabetes; 36·9% (142) had hypertension, and 23·9% (92) had both conditions. Most respondents reported daily adherence to medication for hypertension (79·5% [186/234]) and diabetes (84·8% [206/243]). Few participants (15·6% [60/385]) reported daily vigorous physical activity, but 63·1% (243/385) reported moderate physical activity at least once per week. Most respondents reported adherence to recommendations for dietary changes (75·6% [291/385]), non-smoking (98·7% [380/385]), alcohol abstinence (90·1% [347/385]), and weight management (75·6% [291/385]). From the interviews and discussions, patients reported that they tried to adhere to recommended medications but were limited by the inability to obtain them. Most patients reported irregular self-monitoring and many reported confusion about recommended practices due to mixed messages, mainly from their peers. Respondents also reported use of herbal remedies, soaking swollen feet in salt water, and coping with stress through prolonged sleep, social isolation, and alcohol use. Interpretation: Varied self-care practices exist among rural Ugandan NCD patients. Patients inconsistently engage in recommended practices because of uncertain access to medicines, structural barriers, and inconsistent messaging. Locally adapted educational self-care programmes and consistent access to medicines could help improve self-care in these patients. As low-income countries like Uganda continue to advance their NCD policies, specific attention should be focused on strategies to ensure equitable access to essential NCD medicines. Additionally, the unique circumstances of people living in rural settings should be taken into account when developing programmes for management of NCDs. Funding: Yale Institute of Global Health Hecht Global Health Faculty Network Award
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- 2020
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38. Development of a discrete choice experiment to understand patient preferences for diabetes and hypertension management in rural Uganda
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Sarah E Moor, MSc, Andrew K Tusubira, MPH, Ann R Akiteng, MPH, Evelyn Hsieh, MD, Christine Ngaruiya, MD, Tracy L Rabin, MD, Nicola L Hawley, PhD, Kasia J Lipska, MD, Mari Armstrong-Hough, PhD, Christine K Nalwadda, PhD, Rachel Nugent, PhD, Robert Kalyesubula, MMed, Isaac Ssinabulya, MMed, and Jeremy I Schwartz, MD
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Public aspects of medicine ,RA1-1270 - Abstract
Background: In 2020, non-communicable diseases (NCDs) currently account for 40% of deaths in east Africa and are expected to surpass communicable diseases as the leading causes of death in sub-Saharan Africa by 2030. However, there remain many gaps in the provision of high quality, patient-centred NCD service delivery in low-income countries such as Uganda, especially in rural settings. We developed a discrete choice experiment (DCE) to understand how patients with common NCDs, such as hypertension and diabetes, make health-care-seeking decisions. A DCE is a quantitative tool that measures the weight of different factors that affect a decision. Participants are presented with two hypothetical scenarios to choose between. Here we report on the formative, qualitative phase of DCE development. Methods: For this DCE, choice sets consist of two health facilities described in terms of various attributes (factors) that affect decision-making. To develop a locally relevant DCE, we conducted formative qualitative research consisting of 18 in-depth interviews with patients seeking care for hypertension or diabetes, or both, at three health facilities in rural Nakaseke District, Uganda. We purposively selected participants so that each disease and facility were represented. Interviews explored how participants choose which facility to visit and challenges that she or he faces in accessing care or medicines, or both. A team of three researchers coded the interviews using a directed approach to reveal 11 potential attributes on which patients make decisions. After review of the data and analysis with local and international content experts, we narrowed this list to six attributes to be included in the DCE. Findings: The six selected attributes included: provision of education; availability of medicines; transport to the facility; costs associated with treatment; interactions with health-care providers; and presence of peer support groups. Attribute levels encompassed the range of experiences for each attribute as emerged from qualitative analysis. We then developed a full profile, fractional factorial DCE with three surveys. Interpretation: The process of developing this NCD-focused DCE relied on reference to the literature, primary qualitative data collection, and expert consensus to create a tool that would yield actionable data to improve NCD health service delivery in rural Uganda. Little is known about how rural patients in low-income and middle-income countries navigate the health-care system, nor is there much description of how to develop DCEs to investigate patient preferences in these countries. This work will guide public health officials in developing NCD service delivery options and inform investigators on DCE development. Funding: Yale Institute of Global Health Hecht Global Health Faculty Network Award Downs International Health Student Travel Fellowship
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- 2020
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39. Knowledge and use of family planning among men in rural Uganda
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Anne Dougherty, Alex Kayongo, Samantha Deans, John Mundaka, Faith Nassali, James Sewanyana, Eric Migadde, Ronald Kiyemba, Estherloy Katali, Sarah Jane Holcombe, Sarah H. Heil, and Robert Kalyesubula
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Family planning ,Contraception ,Men ,Contraceptive knowledge ,Uganda ,Low resource ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Unmet need for family planning exceeds 33% in Uganda. One approach to decreasing unmet need is promoting male involvement in family planning. Male disapproval of use of family planning by their female partners and misconceptions about side effects are barriers to family planning globally and in Uganda in particular. Researchers have conducted a number of qualitative studies in recent years to examine different aspects of family planning among Ugandan men. The present study aimed to quantify men’s knowledge of family planning in rural Uganda to understand how better to involve men in couples’ contraceptive decision-making, particularly in low-resource settings. Methods Data were derived from in-person, researcher-administered surveys of men in a rural agrarian district in Uganda (N = 178). Participant demographics and knowledge of family planning methods, side effects, and use were queried. Descriptive statistics were used for analysis. Results Men were 34 years of age on average (range 18–71) and about half (56%) had a primary school education or less. Ninety-eight percent reported any knowledge of family planning, with 73% of men reporting obtaining information via radio and only 43% from health workers. The most common method known by men was the male condom (72%), but more than half also knew of injections (54%) and pills (52%). Relatively few men reported knowing about the most effective reversible contraceptive methods, intrauterine devices and implants (both 16%). Men identified many common contraceptive side-effects, such as vaginal bleeding (31%), and misconceptions about side effects, such as increased risk of infertility and birth defects, were relatively uncommon (both
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- 2018
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40. Prevalence and associated factors of protein- energy wasting among patients with chronic kidney disease at Mulago hospital, Kampala-Uganda: a cross-sectional study
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Lydia Namuyimbwa, Collins Atuheire, Joel Okullo, and Robert Kalyesubula
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Protein energy wasting ,Chronic kidney disease ,Anthropometric measurements ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Background Chronic kidney disease (CKD) is global health concern and priority. It is the 12th leading cause of death worldwide. Protein Energy Wasting occurs in 20–25% of patients with chronic kidney disease and can lead to a high morbidity and mortality rate. We determined the prevalence of protein energy wasting and factors associated among patients with chronic kidney disease at Mulago National Referral Hospital, Kampala, Uganda. Methods We conducted a cross-sectional study recruiting 182 (89 non-CKD patients and 93 CKD patients) consecutively from the outpatient clinic and wards on New Mulago Hospital complex. We took anthropometric measurements including heights, weights, Triceps skin fold (TSF), Mid- Upper Arm circumference (MUAC), Body Mass Index (BMI) and Mid-arm muscle circumference (MAMC). Serum albumin levels and lipid profile levels were also obtained. Following consent of study participants, Data was collected using questionnaires and analyzed using STATA 14.1. Percentages, frequencies, means, medians, standard deviation and interquartile range were used to summarise data. Crude and adjusted binary logistic regression was performed to assess unadjusted and adjusted effect measures of protein energy wasting due to several factors. Stratification by CKD status was performed during the analysis to minimize confounding. Results The median age for CKD patients was 39 years compared to 27 years for non-CKD participants (p 160 mg/dl. Conclusion Protein energy Wasting is prevalent among patients with chronic kidney disease and clinicians should routinely screen for it during patient care.
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- 2018
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41. Access to medicines and diagnostic tests integral in the management of diabetes mellitus and cardiovascular diseases in Uganda: insights from the ACCODAD study
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Davis Kibirige, David Atuhe, Leaticia Kampiire, Daniel Ssekikubo Kiggundu, Pamela Donggo, Juliet Nabbaale, Raymond Mbayo Mwebaze, Robert Kalyesubula, and William Lumu
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Availability ,Cost ,Affordability ,Diabetes mellitus ,Cardiovascular diseases ,Low and middle income countries ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Despite the burgeoning burden of diabetes mellitus (DM) and cardiovascular diseases (CVD) in low and middle income countries (LMIC), access to affordable essential medicines and diagnostic tests for DM and CVD still remain a challenge in clinical practice. The Access to Cardiovascular diseases, Chronic Obstructive pulmonary disease, Diabetes mellitus and Asthma Drugs and diagnostics (ACCODAD) study aimed at providing contemporary information about the availability, cost and affordability of medicines and diagnostic tests integral in the management of DM and CVD in Uganda. Methods The study assessed the availability, cost and affordability of 37 medicines and 19 diagnostic tests in 22 public hospitals, 23 private hospitals and 100 private pharmacies in Uganda. Availability expressed as a percentage, median cost of the available lowest priced generic medicine and the diagnostic tests and affordability in terms of the number of days’ wages it would cost the least paid public servant to pay for one month of treatment and the diagnostic tests were calculated. Results The availability of the medicines and diagnostic tests in all the study sites ranged from 20.1% for unfractionated heparin (UFH) to 100% for oral hypoglycaemic agents (OHA) and from 6.8% for microalbuminuria to 100% for urinalysis respectively. The only affordable tests were blood glucose, urinalysis and serum ketone, urea, creatinine and uric acid. Parenteral benzathine penicillin, oral furosemide, glibenclamide, bendrofluazide, atenolol, cardiac aspirin, digoxin, metformin, captopril and nifedipine were the only affordable drugs. Conclusion This study demonstrates that the majority of medicines and diagnostic tests essential in the management of DM and CVD are generally unavailable and unaffordable in Uganda. National strategies promoting improved access to affordable medicines and diagnostic tests and primary prevention measures of DM and CVD should be prioritised in Uganda.
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- 2017
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42. Kidney disease in Uganda: a community based study
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Robert Kalyesubula, Joaniter I. Nankabirwa, Isaac Ssinabulya, Trishul Siddharthan, James Kayima, Jane Nakibuuka, Robert A. Salata, Charles Mondo, Moses R. Kamya, and Donald Hricik
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Chronic kidney disease ,Risk factors ,Uganda ,sub-Saharan Africa ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Background Chronic kidney disease (CKD) is a major cause of morbidity and mortality in Sub-Saharan Africa (SSA). The majority of studies on CKD in SSA have been conducted among HIV-infected populations and mainly from large health facilities. We determined the prevalence of CKD and its predictors among populations in communities in central Uganda. Methods A cross-sectional study was conducted in Wakiso district using multi-stage sampling. Data was collected on age, sex, socio-economic status, history of alcohol intake, diabetes mellitus, hypertension and smoking. Measurement of blood pressure, weight and height to determine body mass index (BMI) and investigations including HIV testing, fasting blood sugar, creatinine and urinalysis were conducted. Logistic regression was used to estimate the strength of the association between variables and the presence of CKD estimated using the Cockcroft Gault formula. Results A total of 955 participants aged 18–87 years were enrolled into the study. The median age was 31 years (Interquartile range 24–42) and majority (67%) were female. Up to 21.4% (204/955) had abnormal renal function with CKD stage 1 in 6.2% (59/955), stage 2 in 12.7% (121/955), stage 3 in 2.4% (23/955), CKD stage 4 in 0% and CKD stage 5 in 0.1% (1/995). Female gender OR 1.8 (95% Confidence Interval [CI] 1.2–2.8), age >30 years OR 2.2(95% CI 1.2–3.8) and high social economic status OR 2.1 (95% CI 1.3–3.6) were associated with increased risk of CKD while BMI > 25Kg/m2 was protective against CKD OR 0.1 (95% CI 0.04–0.2). Traditional risk factors such as HIV-infection, diabetes mellitus, smoking and alcohol intake were not found to be significantly associated with CKD. Conclusion We found a high prevalence of kidney disease in central Uganda. Interestingly the traditional risk factors associated with CKD previously documented, were not associated with CKD.
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- 2017
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43. Prevalence of impaired renal function among rural and urban populations: findings of a cross-sectional study in Malawi [version 1; peer review: 1 approved, 2 approved with reservations]
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Wisdom P Nakanga, Josephine E Prynn, Louis Banda, Robert Kalyesubula, Laurie A Tomlinson, Moffat Nyirenda, and Amelia C Crampin
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Medicine ,Science - Abstract
Background: Sub-Saharan Africa faces region-specific risk factors for chronic kidney disease (CKD), such as nephrotoxic herbal medicines, antiretroviral therapy and infections, in addition to hypertension and diabetes. However, large epidemiological studies from this area are scarce. Methods: In a cross-sectional survey of non-communicable diseases, we conducted a prevalence sub-study of CKD in two Malawian populations. Study participants (N=5264) of 18 years of age and above were recruited and data on demographics and CKD risk factors were collected. Glomerular filtration rate was estimated (eGFR) using the CKD-EPI equation. Results: The prevalence of eGFR
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- 2019
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44. Impaired renal function in a rural Ugandan population cohort [version 3; peer review: 2 approved]
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Robert Kalyesubula, Jeffrey P. Hau, Gershim Asiki, Billy Ssebunya, Sylvia Kusemererwa, Janet Seeley, Liam Smeeth, Laurie Tomlinson, and Robert Newton
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Medicine ,Science - Abstract
Background: Kidney disease is an important cause of morbidity and mortality globally. However, there are limited data on the prevalence of impaired kidney function in sub-Saharan Africa. We aimed to determine the prevalence of reduced kidney function and associated factors in a rural Ugandan population. Methods: We undertook a study of a representative sample of the General Population Cohort in South-western Uganda. We systematically collected data on cardiovascular disease risk factors, anthropometric measurements and blood tests including haemoglobin, HIV, HbA1c and serum creatinine. The estimated glomerular filtration rate (eGFR) was calculated using the CKD-Epi equation, without the race component of the equation. Results: A total of 5,979/6,397 (93.5%) participants had valid creatinine results. The mean age was 39 years (Range:16-103 years) and 3,627 (60.7%) were female. HIV prevalence was 9.7% and about 40% of the population were pre-hypertensive or hypertensive. The mean serum creatinine level was 0.75 mg/dl (95% CI 0.74–0.75), and the average eGFR was 109.3 ml/min/1.73 m 2 (95% CI 108.8–109.9). The overall prevalence of eGFR
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- 2019
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45. Global teaching and training initiatives for emerging cohort studies
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Jessica K. Paulus, Rocío Santoyo-Vistrain, David Havelick, Amy Cohen, Robert Kalyesubula, Ikeoluwapo O. Ajayi, Jens G. Mattsson, Hans-Olov Adami, and Shona Dalal
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Cohort studies ,Non-communicable diseases ,Training ,Mentorship ,Teaching ,Public health education ,Public aspects of medicine ,RA1-1270 - Abstract
A striking disparity exists across the globe, with essentially no large-scale longitudinal studies ongoing in regions that will be significantly affected by the oncoming non-communicable disease epidemic. The successful implementation of cohort studies in most low-resource research environments presents unique challenges that may be aided by coordinated training programs. Leaders of emerging cohort studies attending the First World Cohort Integration Workshop were surveyed about training priorities, unmet needs and potential cross-cohort solutions to these barriers through an electronic pre-workshop questionnaire and focus groups. Cohort studies representing India, Mexico, Nigeria, South Africa, Sweden, Tanzania and Uganda described similar training needs, including on-the-job training, data analysis software instruction, and database and bio-bank management. A lack of funding and protected time for training activities were commonly identified constraints. Proposed solutions include a collaborative cross-cohort teaching platform with web-based content and interactive teaching methods for a range of research personnel. An international network for research mentorship and idea exchange, and modifying the graduate thesis structure were also identified as key initiatives. Cross-cohort integrated educational initiatives will efficiently meet shared needs, catalyze the development of emerging cohorts, speed closure of the global disparity in cohort research, and may fortify scientific capacity development in low-resource settings.
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- 2019
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46. Urban–rural and geographic differences in overweight and obesity in four sub-Saharan African adult populations: a multi-country cross-sectional study
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IkeOluwapo O. Ajayi, Clement Adebamowo, Hans-Olov Adami, Shona Dalal, Megan B. Diamond, Francis Bajunirwe, David Guwatudde, Marina Njelekela, Joan Nankya-Mutyoba, Faraja S. Chiwanga, Jimmy Volmink, Robert Kalyesubula, Carien Laurence, Todd G. Reid, Douglas Dockery, David Hemenway, Donna Spiegelman, and Michelle D. Holmes
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Prevalence of obesity and overweight ,risk factors for over-nutrition ,Sub-Saharan Africa ,South Africa ,Nigeria ,Tanzania ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Overweight and obesity are on the rise in developing countries including sub-Saharan Africa. We undertook a four-country survey to show the collective burden of these health conditions as they occur currently in sub-Saharan Africa and to determine the differences between urban and rural populations and other socio-economic factors. Methods Participants were nurses in two hospitals in Nigeria (200), school teachers in South Africa (489) and Tanzania (229), and village residents in one peri-urban (297) and one rural location in Uganda (200) who completed a standardised questionnaire. Their height and weight were measured and body mass index calculated. Factor analysis procedure (Principal component) was used to generate a wealth index. Univariate and multivariate analyses with binary logistic regression models were conducted to examine the associations between potential correlates and the prevalence of overweight and obesity with 95 % confidence intervals. Results The prevalence of overweight and obese (combined) was 46 %, 48 %, 68 %, 75 % and 85 % in rural Uganda, peri-urban Uganda, Nigeria, Tanzania and South Africa (SA), respectively. Rural Uganda, Peri- urban Uganda, Nigeria, Tanzania and SA had obesity prevalence of 10 %, 14 %, 31 %, 40 % and 54 %, respectively (p =25 kg/m2 in Nigeria [Age > =45 - AOR = 9.11; 95 % CI: 1.72, 48.16] and SA [AOR = 6.22; 95 % CI: 2.75, 14.07], while marital status was predictor of BMI > =25 kg/m2 only in peri-urban Uganda. [Married - AOR = 4.49; 95 % CI: 1.74, 11.57]. Those in Nigeria [AOR = 2.56; 95 % CI: 1.45, 4.53], SA [AOR = 4.97; 95 % CI: 3.18, 7.78], and Tanzania [AOR = 2.68; 95 % CI: 1.60, 4.49] were more likely to have BMI > =25 kg/m2 compared with the rural and peri-urban sites. Conclusion The high prevalence of overweight and obesity in these sub-Saharan African countries and the differentials in prevalence and risk factors further highlights the need for urgent focused intervention to stem this trend, especially among women, professionals and urban dwellers.
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- 2016
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47. Urban and rural prevalence of diabetes and pre-diabetes and risk factors associated with diabetes in Tanzania and Uganda
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Faraja S. Chiwanga, Marina A. Njelekela, Megan B. Diamond, Francis Bajunirwe, David Guwatudde, Joan Nankya-Mutyoba, Robert Kalyesubula, Clement Adebamowo, IkeOluwapo Ajayi, Todd G. Reid, Jimmy Volmink, Carien Laurence, Hans-Olov Adami, Michelle D. Holmes, and Shona Dalal
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non-communicable ,risk factors ,underdiagnoses ,sub-Saharan Africa ,Tanzania ,Uganda ,Public aspects of medicine ,RA1-1270 - Abstract
Background: The increase in prevalence of diabetes and pre-diabetes in sub-Saharan Africa underlines the importance of understanding its magnitude and causes in different population groups. We analyzed data from the Africa/Harvard Partnership for Cohort Research and Training (PaCT) studies to determine the prevalence of diabetes and pre-diabetes and risk factors associated with diabetes. Methodology: Participants were randomly selected from peri-urban (n=297) and rural (n=200) communities in Uganda, and teachers were recruited from schools (n=229) in urban Tanzania. We used a standardized questionnaire to collect socio-demographic and self-reported disease status including diabetes status. Blood glucose was also measured after participants fasted for 8 h. We used standard protocols for anthropometric and blood pressure measurement. Results: The overall prevalence of diabetes was 10.1% and was highest in rural Ugandan residents (16.1%) compared to teachers in Tanzania (8.3%) and peri-urban Ugandan residents (7.6%). The prevalence of pre-diabetes was 13.8%. The prevalence of self-reported diabetes was low across all sites, where 68% of participants with diabetes were not captured by self-report. In multivariable logistic regression analysis, family history (OR 2.5, 95% CI: 1.1, 5.6) and hypertension (OR 2.3, 95% CI: 1.1, 5.2) were significantly associated with diabetes. Conclusions: The prevalence of diabetes and pre-diabetes in Uganda and Tanzania is high, differs markedly between population groups, and remains undiagnosed in an alarmingly high proportion of individuals. These findings highlight the need for large-scale, prospective studies to accurately quantify the burden and identify effective intervention and treatment strategies across diverse African populations.
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- 2016
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48. Trends of admissions and case fatality rates among medical in-patients at a tertiary hospital in Uganda; A four-year retrospective study.
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Robert Kalyesubula, Innocent Mutyaba, Tracy Rabin, Irene Andia-Biraro, Patricia Alupo, Ivan Kimuli, Stella Nabirye, Magid Kagimu, Harriet Mayanja-Kizza, Asghar Rastegar, and Moses R Kamya
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Medicine ,Science - Abstract
BackgroundSub-Saharan Africa suffers from a dual burden of infectious and non-communicable diseases. There is limited data on causes and trends of admission and death among patients on the medical wards. Understanding the major drivers of morbidity and mortality would help inform health systems improvements. We determined the causes and trends of admission and mortality among patients admitted to Mulago Hospital, Kampala, Uganda.Methods and resultsThe medical record data base of patients admitted to Mulago Hospital adult medical wards from January 2011 to December 2014 were queried. A detailed history, physical examination and investigations were completed to confirm the diagnosis and identify comorbidities. Any histopathologic diagnoses were made by hematoxylin and eosin tissue staining. We identified the 10 commonest causes of hospitalization, and used Poisson regression to generate annual percentage change to describe the trends in causes of hospitalization. Survival was calculated from the date of admission to the date of death or date of discharge. Cox survival analysis was used to identify factors associate with in-hospital mortality. We used a statistical significance level of pConclusionAdmissions and case fatality rates for both infectious and non-infectious diseases were high, with declining trends in infectious diseases and a rising trend in NCDs. Health care systems in sub-Saharan region need to prepare to deal with dual burden of disease.
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- 2019
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49. Feasibility of a large cohort study in sub-Saharan Africa assessed through a four-country study
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Shona Dalal, Michelle D. Holmes, Carien Laurence, Francis Bajunirwe, David Guwatudde, Marina Njelekela, Clement Adebamowo, Joan Nankya-Mutyoba, Faraja S. Chiwanga, Jimmy Volmink, Ikeoluwapo Ajayi, Robert Kalyesubula, Todd G. Reid, Douglas Dockery, David Hemenway, and Hans-Olov Adami
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non-communicable ,chronic disease ,injury ,South Africa ,Nigeria ,Tanzania ,Uganda ,Public aspects of medicine ,RA1-1270 - Abstract
Background: Large prospective epidemiologic studies are vital in determining disease etiology and forming national health policy. Yet, such studies do not exist in sub-Saharan Africa (SSA) notwithstanding the growing burden of chronic diseases. Objective: We explored the feasibility of establishing a large-scale multicountry prospective study at five sites in four sub-Saharan countries. Design: Based on country-specific considerations of feasibility, Nigeria enrolled health care professionals, South Africa and Tanzania enrolled teachers, and Uganda enrolled village residents at one rural and one periurban site each. All sites used a 6-month follow-up period but different approaches for data collection, namely standardized questionnaires filled out by participants or face-to-face interviews. Results: We enrolled 1415 participants from five sites (range 200–489) with a median age of 41 years. Approximately half had access to clean-burning cooking fuel and 70% to piped drinking water, yet 92% had access to a mobile phone. The prevalence of chronic diseases was 49% among 45- to 54-year-olds and was dominated by hypertension (21.7% overall) – ranging from 4.5 to 31.2% across sites – and a serious injury in the past 12 months (12.4% overall). About 80% of participants indicated willingness to provide blood samples. At 6-month follow-up, 68% completed a questionnaire (45 to 96% across sites) with evidence that mobile phones were particularly useful. Conclusions: Our pilot study indicates that a large-scale prospective study in SSA is feasible, and the burden of chronic disease in SSA may already be substantial necessitating urgent etiologic research and primary prevention.
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- 2015
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50. Geographic differences in the prevalence of hypertension in Uganda: Results of a national epidemiological study.
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Joseph Lunyera, Bruce Kirenga, John W Stanifer, Samuel Kasozi, Thys van der Molen, Wenceslaus Katagira, Moses R Kamya, and Robert Kalyesubula
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Medicine ,Science - Abstract
BACKGROUND:Hypertension accounts for more than 212 million global disability-adjusted life-years, and more than 15 million in sub-Saharan Africa. Identifying factors underlying the escalating burden of hypertension in sub-Saharan Africa may inform delivery of targeted public health interventions. METHODS:As part of the cross-sectional nationally representative Uganda National Asthma Survey conducted in 2016, we measured blood pressure (BP) in the general population across five regions of Uganda. We defined hypertension as systolic BP ≥140 mmHg and/or diastolic BP ≥90 mmHg, or on-going use of medications for the purpose of lowering BP among adults (≥18 years of age); pre-hypertension as systolic BP between 120 and 140 mmHg and/or diastolic BP bteween 80 and 90 mmHg among adolescents and adults (≥12 years of age). FINDINGS:Of 3416 participants who met inclusion criteria, 38.9% were male, and mean age ± SD was 33.8 ± 16.9 years. The age- and sex-adjusted prevalence of hypertension was 31.5% (95% confidence interval [CI] 30.2 to 32.8). The adjusted prevalence of hypertension was highest in the Central Region (34.3%; 95% CI 32.6 to 36.0), and it was comparable to that in the West and East Regions. However, compared with the Central Region, hypertension was significantly less prevalent in the North (22.0%; 95 CI 19.4 to 24.6) and West Nile Regions (24.1%; 95% CI 22.0 to 26.3). Adjustment for demographic characteristics (occupation, monthly income, and educational attainment) of participants did not account for the significantly lower prevalence of hypertension in the North and West Nile Regions. The prevalence of pre-hypertension was 38.8% (95% CI 37.7 to 39.8), and it was highly prevalent among young adults (21-40 years of age: 42.8%; 95% CI 41.2-44.5%) in all regions. CONCLUSIONS:Hypertension is starkly prevalent in Uganda, and numerous more people, including young adults are at increased risk. The burden of hypertension is highest in the Central, Western, and Eastern regions of the country; demographic characteristics did not fully account for the disparate regional burden of hypertension. Future studies should explore the potential additional impact of epidemiological shifts, including diet and lifestyle changes, on the development of hypertension.
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- 2018
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