Nonadherence to clinic appointments among HIV-infected children in an ambulatory care program in western Kenya

Winstone Nyandiko, Rachel Vreeman, Hai Liu, Sylvia Shangani, Edwin Sang, Samuel Ayaya, Paula Braitstein

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Background: Nonadherence to clinic appointments is associated with poor outcomes in HIV-infected adults. We describe the effect of cumulative clinic adherence (CCA) to clinic appointments on mortality and loss to follow-up (LTFU) among HIV-infected children in Kenya. Methods: We analyzed retrospective clinical data from HIVinfected children in the United States Agency for International Development-Academic Model Providing Access to Healthcare Partnership in Kenya between 2001 and 2009. We defined CCA as the proportion of days adherent to clinic visits after enrollment. We examined the effects of CCA on both death and LTFU, controlling for demographic and clinical factors at enrollment and over time. Cox proportional hazards models with time-varying coefficients were used to calculate adjusted hazard ratios (AHR) associated with each 10% increase in CCA on mortality and LTFU. Results: Among 3255 HIV-infected children, 1668 (51.2%) were male, median enrollment age of 5.2 years (interquartile range: 3.6- 7.4). Of 2393 children with CD4 within 3 months after enrollment, 1125 (47.0%) were severely immune suppressed, 567 became LTFU, and 88 died. Children with higher CCA had a higher risk of both mortality and LTFU at 3 and 6 months. Higher CCA became protective at 24 months for mortality, AHR at 24 months: 0.7 (95% confidence interval: 0.6 to 0.9), and at 12 months for LTFU, AHR at 24 months: 0.7 (95% confidence interval: 0.7 to 0.7). Conclusions: Children adherence to clinic visits during the first 6 months of HIV care was associated with a higher risk of death and LTFU, but by 24 months, children with better CCA had a reduced risk of LTFU and mortality.

Original languageEnglish
JournalJournal of Acquired Immune Deficiency Syndromes
Volume63
Issue number2
DOIs
StatePublished - Jun 1 2013

Fingerprint

Kenya
Ambulatory Care
Appointments and Schedules
HIV
Mortality
United States Agency for International Development
Confidence Intervals
Proportional Hazards Models
Demography
Delivery of Health Care

Keywords

  • CDC stage
  • Children
  • Clinic adherence
  • HIV infected
  • Immune suppression
  • Lost-tofollow-up
  • WAZ and WHZ scores

ASJC Scopus subject areas

  • Infectious Diseases
  • Pharmacology (medical)
  • Medicine(all)

Cite this

Nonadherence to clinic appointments among HIV-infected children in an ambulatory care program in western Kenya. / Nyandiko, Winstone; Vreeman, Rachel; Liu, Hai; Shangani, Sylvia; Sang, Edwin; Ayaya, Samuel; Braitstein, Paula.

In: Journal of Acquired Immune Deficiency Syndromes, Vol. 63, No. 2, 01.06.2013.

Research output: Contribution to journalArticle

Nyandiko, Winstone ; Vreeman, Rachel ; Liu, Hai ; Shangani, Sylvia ; Sang, Edwin ; Ayaya, Samuel ; Braitstein, Paula. / Nonadherence to clinic appointments among HIV-infected children in an ambulatory care program in western Kenya. In: Journal of Acquired Immune Deficiency Syndromes. 2013 ; Vol. 63, No. 2.
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abstract = "Background: Nonadherence to clinic appointments is associated with poor outcomes in HIV-infected adults. We describe the effect of cumulative clinic adherence (CCA) to clinic appointments on mortality and loss to follow-up (LTFU) among HIV-infected children in Kenya. Methods: We analyzed retrospective clinical data from HIVinfected children in the United States Agency for International Development-Academic Model Providing Access to Healthcare Partnership in Kenya between 2001 and 2009. We defined CCA as the proportion of days adherent to clinic visits after enrollment. We examined the effects of CCA on both death and LTFU, controlling for demographic and clinical factors at enrollment and over time. Cox proportional hazards models with time-varying coefficients were used to calculate adjusted hazard ratios (AHR) associated with each 10{\%} increase in CCA on mortality and LTFU. Results: Among 3255 HIV-infected children, 1668 (51.2{\%}) were male, median enrollment age of 5.2 years (interquartile range: 3.6- 7.4). Of 2393 children with CD4 within 3 months after enrollment, 1125 (47.0{\%}) were severely immune suppressed, 567 became LTFU, and 88 died. Children with higher CCA had a higher risk of both mortality and LTFU at 3 and 6 months. Higher CCA became protective at 24 months for mortality, AHR at 24 months: 0.7 (95{\%} confidence interval: 0.6 to 0.9), and at 12 months for LTFU, AHR at 24 months: 0.7 (95{\%} confidence interval: 0.7 to 0.7). Conclusions: Children adherence to clinic visits during the first 6 months of HIV care was associated with a higher risk of death and LTFU, but by 24 months, children with better CCA had a reduced risk of LTFU and mortality.",
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AU - Liu, Hai

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AU - Sang, Edwin

AU - Ayaya, Samuel

AU - Braitstein, Paula

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KW - Lost-tofollow-up

KW - WAZ and WHZ scores

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