Are decreases in drug use risk associated with reductions in HIV sex risk behaviors among adults in an urban hospital primary care setting

Published on Dec 1, 2016in Preventive medicine reports
· DOI :10.1016/J.PMEDR.2016.08.001
Angela Wangari Walter5
Estimated H-index: 5
(University of Massachusetts Lowell),
Debbie M. Cheng44
Estimated H-index: 44
(BU: Boston University)
+ 3 AuthorsRichard Saitz67
Estimated H-index: 67
(BU: Boston University)
Abstract Drug use is associated with increased sexual risk behaviors. We examined whether decreases in drug use risk are associated with reduction in HIV-related sex risk behaviors among adults. Data was from a cohort of participants (n = 574) identified by drug use screening in a randomized trial of brief intervention for drug use in an urban primary care setting. Inverse probability of treatment weighted (IPTW) logistic regression models were used to examine the relationship between decreases in drug use risk and sex-related HIV risk behavior reduction from study entry to six months. Weights were derived from propensity score modeling of decreases in drug use risk as a function of potential confounders. Thirty seven percent of the study participants (213/574) reported a decrease in drug use risk, and 7% (33/505) reported decreased sex-related HIV risk behavior at the six-month follow-up point. We did not detect a difference in reduction of risky sexual behaviors for those who decreased drug use risk (unadjusted: OR 1.32, 95% CI 0.65–2.70; adjusted OR [AOR] 1.12, 95% CI 0.54–2.36). Adults who screened positive for high drug use risk had greater odds of reducing sex risk behavior in unadjusted analyses OR 3.71, 95% CI 1.81–7.60; but the results were not significant after adjusting for confounding AOR 2.50, 95% CI 0.85–7.30). In this primary care population, reductions in HIV sex risk behaviors have complex etiologies and reductions in drug use risk do not appear to be an independent predictor of them.
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