Publications by authors named "Samwel Ayaya"

Antiretroviral therapy (ART) requires nearly perfect adherence to be effective. This study aims to identify key factors identified by HIV-infected adolescents on ART as contributing to medication adherence in western Kenya. Using a qualitative study design, three adolescent focus groups discussions were conducted at an urban and rural clinic site in western Kenya.

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Background: Kenya experienced a political and humanitarian crisis after presidential elections on December 27, 2007. We sought to describe both the immediate and long-term impact of this conflict for HIV-infected children in western Kenya.

Methods: We conducted a retrospective study of a cohort of these children for 3 periods: period 1, before the election (October 26, 2007, to December 25, 2007); period 2, immediately after the election (December 26, 2007, to April 15, 2008); and period 3, long-term postelection (April 16, 2008, to December 31, 2008).

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Objective: The objective of this study was to identify the vital status and reasons for children becoming loss to follow-up (LTFU) from a large program in western Kenya.

Methods: This was a prospective evaluation of a random sample of 30% of HIV-exposed and HIV-positive children LTFU from either an urban or rural HIV Academic Model Providing Access to Healthcare clinic. LTFU is defined as absence from clinic for >6 months if on combination antiretroviral therapy and > 12 months if not.

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In resource-limited settings, beliefs about disclosing a child's HIV status and the subsequent impacts of disclosure have not been well studied. We sought to describe how parents and guardians of HIV-infected children view the impact of disclosing a child's HIV status, particularly for children's antiretroviral therapy (ART) adherence. A qualitative study was conducted using involving focus groups and interviews with parents and guardians of HIV-infected children receiving ART in western Kenya.

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Background: Home-based voluntary counseling and testing (HCT) presents a novel approach to early diagnosis. We sought to describe uptake of pediatric HIV testing, associated factors, and HIV prevalence among children offered HCT in Kenya.

Methods: The USAID-Academic Model Providing Access to Healthcare Partnership conducted HCT in western Kenya in 2008.

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Background: To describe incidence rates (IR) and risk factors for loss-to-follow-up (LTFU) among HIV-infected and HIV-exposed children in a large HIV treatment programme in Western Kenya.

Methods: The USAID-AMPATH Partnership has enrolled >100,000 patients (20% children) at 23 clinic sites throughout western Kenya. LTFU is defined as being absent from the clinic for >3 months if on combination antiretroviral treatment (cART) and >6 months if not.

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Antiretroviral therapy (ART) requires nearly perfect adherence to be effective. Although 90% of HIV-infected children live in Africa, there are limited data on pediatric adherence from this multicultural continent.We conducted a qualitative study to identify key factors contributing to pediatric ART adherence.

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Context: The burden of tuberculosis (TB) disease in children, particularly in HIV-infected children, is poorly described because of a lack of effective diagnostic tests and the emphasis of public health programs on transmissible TB.

Objectives: The objectives of this study were to describe the observed incidence of and risk factors for TB diagnosis among HIV-infected children enrolled in a large network of HIV clinics in western Kenya.

Design: Retrospective observational study.

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Background: Pediatric adherence to antiretroviral therapy (ART) is not well studied in resource-limited settings. Reported ART adherence may be influenced by contextual factors, such as orphan status.

Objectives: The objectives of this study were to describe self- and proxy-reported pediatric ART adherence in a resource-limited population and to investigate associated contextual factors.

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