8 results on '"Thiga J"'
Search Results
2. P4.034 Effects of Partner Disclosure on Clinical Outcomes Among HIV Infected Adult Initiating ART
- Author
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Ngomoa, R S, primary, Njoroge, J, additional, Thiga, J, additional, McGrath, C, additional, Chung, M H, additional, Attwa, M, additional, and Yatich, N, additional
- Published
- 2013
- Full Text
- View/download PDF
3. Knowing a sexual partner is HIV-1-uninfected is associated with higher condom use among HIV-1-infected adults in Kenya.
- Author
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Benki-Nugent S, Chung MH, Ackers M, Richardson BA, McGrath CJ, Kohler P, Thiga J, Attwa M, John-Stewart GC, Benki-Nugent, Sarah, Chung, Michael H, Ackers, Marta, Richardson, Barbra A, McGrath, Christine J, Kohler, Pamela, Thiga, Joan, Attwa, Mena, and John-Stewart, Grace C
- Published
- 2011
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- View/download PDF
4. Building citizen science intelligence for outbreak preparedness and response: a mixed-method study in nine countries to assess knowledge, readiness and feasibility.
- Author
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Tan YR, Nguyen MD, Mubaira CA, Kajungu D, Kumar D, Canlas FC, Sunaryoko FY, Maharjan GR, Khosa H, Hauter I, Thiga J, Anowar MM, Okwen P, Kutadza T, Chikanya W, Choisy M, and Yap P
- Subjects
- Humans, Adolescent, Adult, Feasibility Studies, Community Participation, Focus Groups, Disease Outbreaks prevention & control, Citizen Science
- Abstract
Introduction: Citizen science (CS) is an emerging approach in public health to harness the collective intelligence of individuals to augment traditional scientific efforts. However, citizens' viewpoint, especially the hard-to-reach population, is lacking in current outbreak-related literature. We aim to understand the awareness, readiness and feasibility of outbreak-related CS, including digitally enabled CS, in low-income and middle-income countries., Methods: This mixed-method study was conducted in nine countries between October 2022 and June 2023. Recruitment through civil society targeted the general population, marginalised/indigenous groups, youth and community health workers. Participants (aged ≥18 years) completed a quantitative survey, and a subset participated in focus group discussions (FGDs)., Results: 2912 participants completed the survey and 4 FGDs were conducted in each country. Incorporating participants' perspectives, CS is defined as the practice of active public participation, collaboration and communication in all aspects of scientific research to increase public knowledge, create awareness, build trust and facilitate information flow between citizens, governments and scientists. In Bangladesh, Indonesia, the Philippines, Cameroon and Kenya, majority were unaware of outbreak-related CS. In India and Uganda, majority were aware but unengaged, while in Nepal and Zimbabwe, majority participated in CS before. Engagement approaches should consider different social and cultural contexts, while addressing incentivisation, attitudes and practicality factors. Overall, 76.0% expressed interest in digital CS but needed training to build skills and confidence. Digital CS was perceived as convenient, safer for outbreak-related activities and producing better quality and quantity of data. However, there were concerns over non-inclusion of certain groups, data security and unclear communication., Conclusion: CS interventions need to be relatable and address context-specific factors influencing CS participation. Digital CS has the potential to facilitate collaboration, but capacity and access issues must be considered to ensure inclusive and sustainable engagement., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2024
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5. Pre-evaluation assessment of serological-based COVID-19 point-of-care lateral flow assays in Kenya.
- Author
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Kimotho JH, Gosar AA, Inyangala R, Wairimu P, Siyoi F, Matoke-Muhia D, Wanjala C, Zablon J, Orina M, Muita L, Thiga J, Nyabuti L, Wainaina E, Mwangi J, Mumbi A, Omari S, Wanjiru A, Nzou SM, and Ochwoto M
- Abstract
Background: Timely testing is a key determinant of management outcomes of coronavirus disease 2019 (COVID-19). Real-time reverse transcription polymerase chain reaction tests are currently the mainstay for COVID-19 testing. However, serological point-of-care tests (PoCTs) can be useful in identifying asymptomatic and recovered cases, as well as herd immunity., Objective: The aim of this study was to assess COVID-19 PoCTs in Kenya to support the emergency use authorisation of these tests., Methods: Between March 2020 and May 2020, 18 firms, of which 13 were from China, submitted their PoCTs to the national regulatory authority, the Pharmacy and Poison Board, who in turn forwarded them to the Kenya Medical Research Institute for pre-evaluation assessment. The tests were run with real-time reverse transcription polymerase chain reaction COVID-19-positive samples. Pre-COVID-19 plasma samples that were collected in June 2019 were used as negative samples. The shelf lives of the PoCTs ranged from 6 to 24 months., Results: Only nine (50%) tests had sensitivities ≥ 40% (range: 40% - 60%) and the ability of these tests to detect IgM ranged from 0% to 50%. Many (7/18; 38.9%) of the kits had very weak IgM and IgG band intensities (range: 2-3)., Conclusion: Serological-based PoCTs available in Kenya can only detect COVID-19 in up to 60% of the infected population., Competing Interests: The authors declare that they have no financial or personal relationships that may have inappropriately influenced them in writing this article., (© 2021. The Authors.)
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- 2021
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6. The consequences of post-election violence on antiretroviral HIV therapy in Kenya.
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Pyne-Mercier LD, John-Stewart GC, Richardson BA, Kagondu NL, Thiga J, Noshy H, Kist N, and Chung MH
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- Adolescent, Adult, Anti-HIV Agents supply & distribution, Female, Health Services Accessibility statistics & numerical data, Humans, Kenya, Male, Middle Aged, Retrospective Studies, Young Adult, Anti-HIV Agents therapeutic use, HIV Infections drug therapy, Politics, Violence statistics & numerical data
- Abstract
Over 1000 individuals were killed and 600,000 were displaced during post-election violence (PEV) in Kenya in 2008. Antiretroviral therapy (ART) depends on continuous access to medications which may have been interrupted due to PEV. In a mixed-methods retrospective review, treatment interruption of ART during PEV was measured among 2534 HIV-positive adults attending the Coptic Hope Center for Infectious Diseases in Nairobi, Kenya. Clients experiencing treatment interruption were compared between the PEV period (30 December 2007 to 28 February 2008) and the same time period one year earlier. Treatment interruption was defined as visiting the pharmacy ≥48 hours after antiretrovirals were calculated to have been completed. Despite clinical services remaining open throughout the PEV period, more clients (16.1%) experienced treatment interruption than during the comparison period (10.2%). Mean daily pharmacy visits were significantly lower (87 vs. 104; p < 0.006) and more variable (p = 0.03) during PEV. Among clients present at both periods (n = 1605), the odds of treatment interruption were 71% higher during PEV (95% confidence interval [CI], 34-118%). In multivariate analysis, men (odds ratio [OR], 1.37; 95% CI, 1.07-1.76) and clients traveling ≥3 hours to clinic (OR, 1.86; 95% CI, 1.28-2.71) were significantly more likely to experience treatment interruption. Clients affected by PEV were interviewed about factors associated with treatment interruption using semi-structured methods. Clients described fear, lack of transportation, and violence as contributing to treatment interruption. Widespread violence associated with the 2007 election in Kenya revealed the dependence of HIV patients on a stable civil society and infrastructure to access medications. Without the ability to maintain consistent HIV therapy, some patients face rapid treatment failure. HIV programs should have appropriate contingency plans wherever political instability may occur. Peace may be one of the most effective and most important public health interventions in Africa.
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- 2011
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7. Comparing clinic retention between residents and nonresidents of Kibera, Kenya.
- Author
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Chung MH, Kohler P, Attwa M, Thiga J, and John-Stewart GC
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- Adolescent, Adult, Aged, Aged, 80 and over, Female, Humans, Kenya, Male, Middle Aged, Young Adult, Anti-HIV Agents therapeutic use, Antiretroviral Therapy, Highly Active methods, HIV Infections drug therapy, Medication Adherence statistics & numerical data, Patient Dropouts statistics & numerical data
- Published
- 2010
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8. Impact of prior HAART use on clinical outcomes in a large Kenyan HIV treatment program.
- Author
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Chung MH, Drake AL, Richardson BA, Reddy A, Thiga J, Sakr SR, Kiarie JN, Yowakim P, and John-Stewart GC
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- Adult, Africa, Body Weight, CD4 Lymphocyte Count, Female, HIV Infections mortality, HIV Infections pathology, Humans, Kenya, Longitudinal Studies, Male, Middle Aged, Treatment Outcome, Anti-HIV Agents therapeutic use, Antiretroviral Therapy, Highly Active, HIV Infections drug therapy
- Abstract
Background: HIV treatment programs in Africa typically approach all enrolling patients uniformly. Growing numbers of patients are antiretroviral experienced. Defining patients on the basis of antiretroviral experience may inform enrollment practices, particularly if medical outcomes differ., Methods: Baseline and follow-up measures (CD4, weight change, and survival) were compared in a retrospective analysis between antiretroviral-naïve (ARV-N) and antiretroviral experience (ARV-E) patients enrolled at the Coptic Hope Center for Infectious Diseases in Nairobi, Kenya and followed between January 2004 and August 2006., Results: 1,307 ARV-N and 962 ARV-E patients receiving highly active antiretroviral therapy (HAART) were followed for median of 9 months (interquartile range: 4-16 months). Compared to ARV-N, ARV-E had substantially higher CD4 count (median cells/mm(3), 193 versus 95, P < 0.001) and weight (median kg, 62 versus 57, P < 0.001) at baseline, and lower rates of change in CD4 (-9.2 cells/mm(3)/month; 95% CI, -11.4 -7.0) and weight (-0.24 kg/month; 95% CI, -0.35 - -0.14) over 12 months. Mortality was significantly higher in ARV-N than ARV-E (P = 0.001)., Conclusions: ARV-E patients form a growing group that differs significantly from ARV-N patients and requires a distinct approach from ARV-N clients. Systematic approaches to streamline care of ARV-E patients may allow focused attention on early ARV-N clients whose mortality risks are substantially higher.
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- 2009
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