BACKGROUND: World Health Organization (WHO) recommendations for the initiation of antiretroviral therapy (ART) in children were revised in 2010, but the programmatic impact has had limited study. METHODS: We used a cohort of 985 Ugandan children followed since 2003 by the Tukula Fenna project to model the differential impact of the 2006, 2008, and 2010 WHO pediatric ART inititation criteria on the proportion of children eligible for ART at enrollment and over time. RESULTS: Using the WHO 2006, 2008, and 2010 ART criteria, 40%, 57%, and 66% of children, respectively, would have been eligible for ART at enrollment and 76%, 84%, and 88% 2 years later. Evaluating the entire cohort followed for 6 years using the 2006, 2008, and 2010 guidelines, the proportion in need of ART was found to be 70%, 82%, and 87%, respectively. Between 2006 and 2008, the proportions of eligible children starting ART within 6 and 12 months were 39% and 50%, respectively; after this, the proportions starting within 6 and 12 months were 50% and 52%. Before 2008, the most common criterion met in children who did not start ART was WHO clinical stage (odds ratio = 2.0, CI 95% = 1.2 to 3.2); after the 2008 recommendations, the most common eligibility criterion in children who did not start ART was age <12 months (odds ratio = 10.5, CI 95% = 3.8 to 31.1). CONCLUSIONS: An overall increase of 17% (from 70% to 87%) in children in need of ART was observed in our cohort comparing the 2006 and 2010 guidelines; this increase was primarily driven by the introduction of universal treatment for infants <12 months in 2008.
BACKGROUND: World Health Organization (WHO) recommendations for the initiation of antiretroviral therapy (ART) in children were revised in 2010, but the programmatic impact has had limited study. METHODS: We used a cohort of 985 Ugandan children followed since 2003 by the Tukula Fenna project to model the differential impact of the 2006, 2008, and 2010 WHO pediatric ART inititation criteria on the proportion of children eligible for ART at enrollment and over time. RESULTS: Using the WHO 2006, 2008, and 2010 ART criteria, 40%, 57%, and 66% of children, respectively, would have been eligible for ART at enrollment and 76%, 84%, and 88% 2 years later. Evaluating the entire cohort followed for 6 years using the 2006, 2008, and 2010 guidelines, the proportion in need of ART was found to be 70%, 82%, and 87%, respectively. Between 2006 and 2008, the proportions of eligible children starting ART within 6 and 12 months were 39% and 50%, respectively; after this, the proportions starting within 6 and 12 months were 50% and 52%. Before 2008, the most common criterion met in children who did not start ART was WHO clinical stage (odds ratio = 2.0, CI 95% = 1.2 to 3.2); after the 2008 recommendations, the most common eligibility criterion in children who did not start ART was age <12 months (odds ratio = 10.5, CI 95% = 3.8 to 31.1). CONCLUSIONS: An overall increase of 17% (from 70% to 87%) in children in need of ART was observed in our cohort comparing the 2006 and 2010 guidelines; this increase was primarily driven by the introduction of universal treatment for infants <12 months in 2008.
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