Dispensation of antiretroviral therapy and methadone maintenance therapy at the same facility in a low‐barrier setting linked to optimal adherence to HIV treatment

Mohd Salleh, Nur Afiqah and Fairbairn, Nadia Souhalya and Nolan, Seonaid and Barrios, Rolando and Shoveller, Jeannie A. and Richardson, Lindsay A. and Milloy, Michael John (2019) Dispensation of antiretroviral therapy and methadone maintenance therapy at the same facility in a low‐barrier setting linked to optimal adherence to HIV treatment. HIV Medicine, 20 (9). pp. 606-614. ISSN 1464-2662, DOI https://doi.org/10.1111/hiv.12777.

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Official URL: https://doi.org/10.1111/hiv.12777

Abstract

Objectives: We sought to examine the association between dispensation of methadone maintenance therapy (MMT) and antiretroviral therapy (ART) at the same facility, across multiple low-barrier dispensing outlets, and achieving optimal adherence to ART among people who use illicit drugs (PWUD). Methods: We used data from the AIDS Care Cohort to Evaluate Exposure to Survival Services (ACCESS) study, a long-running study of a community-recruited cohort of HIV-positive PWUD, linked to comprehensive HIV clinical records in Vancouver, Canada, a setting of no-cost, universal access to HIV care. The longitudinal relationship between MMT-ART dispensation at the same facility and the odds of ≥ 95% ART adherence was analysed using multivariable generalized linear mixed-effects modelling. We conducted a further analysis using a marginal structural mode with inverse probability of treatment weights as a sensitivity analysis. Results: This study included data on 1690 interviews of 345 ART- and MMT-exposed participants carried out between June 2012 and December 2017. In the final multivariable model, MMT-ART dispensation, compared with nondispensation at the same facility, was associated with greater odds of achieving ≥ 95% adherence [adjusted odds ratio (AOR) 1.56; 95% confidence interval (CI) 1.26–1.96]. A marginal structural model estimated a 1.48 (95% CI 1.15–1.80) greater odds of ≥ 95% adherence among participants who reported MMT-ART dispensation at the same facility compared with those who did not. Conclusions: The odds of achieving optimal adherence to ART were 56% higher during periods in which MMT and ART medications were dispensed at the same facility, in a low-barrier setting. Our findings highlight the need to consider a simpler integrated approach with medication dispensation at the same facility in low-threshold settings. © 2019 British HIV Association

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: antiretroviral therapy, highly active; HIV; medication adherence; methadone; people who use illicit drugs
Subjects: R Medicine
Divisions: Faculty of Medicine
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 10 Mar 2020 04:36
Last Modified: 10 Mar 2020 04:36
URI: http://eprints.um.edu.my/id/eprint/23986

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