Predictors and Evolution of Antiretroviral Therapy Adherence Among Perinatally HIV-Infected Adolescents in Brazil
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2016
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de Menezes Succi, Regina Celia 
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Purpose: Antiretroviral therapy medication adherence is a complex phenomenon influenced by multiple factors. This study examines its evolution and predictors among perinatally HIV-infected youths in Sao Paulo, Brazil. Methods: During a 1-year longitudinal cohort study, perinatally HIV-infected youths aged 13-21 years taking antiretroviral therapy were recruited in hospitals and HIV/AIDS reference centers. Data were collected at baseline and after 12 months. Variables assessed were adherence, self-efficacy regarding medication intake, social support, stress level, depression, CD4 cell count, viral load, and symptoms. Adherence was defined as taking >= 95% of prescribed HIV medication in the past 7 days. Generalized estimating equation and analysis of variance methods were used. Results: A total of 268 adolescents participated in the study (59% female
mean age of 16 years). At baseline, 63.06% of the sample was adherent to their HIV medication, and 52.99% had an undetectable viral load. All participants, regardless of adherence, reported: low levels of stress and symptoms of depression
high perception of medication self-efficacy and social support
and a mean of 6.8 symptoms related to their HIV medication. Predictors of adherence were: high perception of medication self-efficacy (odds ratio = 2.81
95% confidence interval: 1.94-4.05) and low number of reported medication side effects (odds ratio = .97
95% confidence interval: .95-.99]. Between baseline and follow-up, 49.6% remained adherent, 22.3% remained nonadherent, and the adherence level changed over time for 28.2%. Conclusions: These findings suggest the need to develop interventions to enhance self-efficacy toward medication and to help youth better manage HIV medication symptoms. Crown Copyright (C) 2016 Published by Elsevier Inc. on behalf of Society for Adolescent Health and Medicine. All rights reserved.
mean age of 16 years). At baseline, 63.06% of the sample was adherent to their HIV medication, and 52.99% had an undetectable viral load. All participants, regardless of adherence, reported: low levels of stress and symptoms of depression
high perception of medication self-efficacy and social support
and a mean of 6.8 symptoms related to their HIV medication. Predictors of adherence were: high perception of medication self-efficacy (odds ratio = 2.81
95% confidence interval: 1.94-4.05) and low number of reported medication side effects (odds ratio = .97
95% confidence interval: .95-.99]. Between baseline and follow-up, 49.6% remained adherent, 22.3% remained nonadherent, and the adherence level changed over time for 28.2%. Conclusions: These findings suggest the need to develop interventions to enhance self-efficacy toward medication and to help youth better manage HIV medication symptoms. Crown Copyright (C) 2016 Published by Elsevier Inc. on behalf of Society for Adolescent Health and Medicine. All rights reserved.
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Journal Of Adolescent Health. New York, v. 59, n. 3, p. 305-310, 2016.