Document Type
Article
Abstract
Background: Antiretroviral adherence is essential to HIV treatment efcacy. Various self-reported measures are commonly used for assessing antiretroviral adherence. Limited data are available regarding the validity of those selfreported measures in comparison with long-term objective biomarkers of adherence measures such as hair measures.
Methods: Self-reported adherence (frequency, percentage, and visual analog scale [VAS]) and hair tenofovir concentration were evaluated at a single time point from 268 people living with HIV in China. The responses to each of three self-reported measures were converted into percentage and then dichotomized as “optimal” (100%) vs. “suboptimal” (less than 100%) adherence. Two composite adherence scores (CAS) were created from the three self-reported measures: (1) an overall adherence was the average percentage of the three self-reported measures; (2) responses were termed optimal adherence if participants reporting optimal adherence in all three self-reported measures, while were termed suboptimal adherence. Hair tenofovir concentration was also dichotomized as “optimal” (above the limit of quantitation, 36 pg/mg) vs. “suboptimal” adherence (blow 36 pg/mg). Spearman correlation, kappa statistics, and logistic regression analysis were used to calculate the correlations, agreements, and predictions of self-reported measures with hair measure, respectively.
Results: Overall adherence, but any of the three self-reported adherence, was correlated with hair tenofovir concentration (r=0.13, p<0.05). Self-reported optimal adherence in VAS and CAS measures were agreed with and predicted optimal adherence assessed by hair measure (Kappa=0.107, adjusted OR=1.88, 95% CI 1.03–3.45; Kappa=0.109, adjusted OR=1.80, 95% CI 1.02–3.18; all p<0.05, respectively).
Conclusion: VAS may be a good individual self-reported measure for antiretroviral adherence, and CAS may be a good composite self-reported measure for antiretroviral adherence
Digital Object Identifier (DOI)
Publication Info
Published in AIDS Research and Therapy, Volume 17, Issue 8, 2020.
© The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativeco mmons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/ zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
APA Citation
Zhang, Q., Li, X., Qiao, S., Shen, Z., & Zhou, Y. (2020). Comparing self-reported medication adherence measures with hair antiretroviral concentration among people living with HIV in Guangxi, China. AIDS Research And Therapy, 17(8). https://doi.org/10.1186/s12981-020-00265-4