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Relationship Dynamics are Associated with Self-Reported Adherence but not an Objective Adherence Measure in Malawi

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Abstract

Couple relationships can be leveraged to improve adherence to antiretroviral therapy (ART), but few studies have identified relationship factors to target in interventions in sub-Saharan Africa. We conducted a cross-sectional study with 211 couples in southern Malawi with at least one partner on ART to test for associations between ART adherence and relationship dynamics (intimacy, trust, relationship satisfaction, unity, commitment, and partner support). We measured ART adherence through subjective measures (patient and partner reports) and an objective measure (ART drug levels in hair) and hypothesized that more positive relationship dynamics (e.g., higher intimacy) would be associated with better adherence. Multi-level logistic and linear regression models were used to evaluate study hypotheses, controlling for the clustering of individuals within couples. High levels of adherence were found by all three measures. Unity, satisfaction, and partner support were associated with higher patient and partner reports of adherence, and additional relationship dynamics (intimacy, trust) were associated with higher partner reported adherence. No associations were found between relationship dynamics and drug levels in hair, although drug levels were high overall. Future studies should perform longitudinal assessments of relationship dynamics and objective metrics of adherence, and examine these associations in populations with lower adherence levels such as young women or individuals starting ART.

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Funding

This research was funded by the National Institute of Mental Health (NIMH) under grant number K01MH107331 awarded to AC.

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AC designed the study, collected the data, assisted with the analysis, and drafted the manuscript. SM conceptualized the study and drafted the manuscript. AR conceptualized the study and drafted the manuscript. TN conceptualized the study and advised on data collection and analysis plans. MS assisted with the analysis and interpretation of results. MG supported data collection of hair samples, drug level analysis, and interpretation of results. All authors edited and approved the manuscript.

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Correspondence to Amy A. Conroy Ph.D., M.P.H..

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This research was approved by the Human Research Protection Program at UCSF and the National Health Sciences Research Committee in Malawi.

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Conroy, A.A., McKenna, S., Ruark, A. et al. Relationship Dynamics are Associated with Self-Reported Adherence but not an Objective Adherence Measure in Malawi. AIDS Behav 26, 3551–3562 (2022). https://doi.org/10.1007/s10461-022-03636-2

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