Drug treatment and incident sexually transmitted infections among people who use drugs: a prospective analysis of gender differences

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2026
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Abstract
Rates of bacterial sexually transmitted infections (STIs) and substance use-related harms have risen sharply in the United States, yet little is known about whether drug treatment affects STI risk among people who use drugs. We analyzed prospective data from 2142 participants who reported illicit drug use at baseline in Project AWARE recruited from nine STI clinics nationwide. We examined associations between self-reported drug treatment in the past six months at baseline and biologically confirmed incident STI at six-month follow-up, overall and by gender, using inverse probability of treatment weighting to estimate average treatment effects (ATE) and average treatment effects among the treated (ATT). At baseline, 14% reported drug treatment. In unadjusted models, drug treatment was associated with higher STI risk (RR = 1.43, 95% CI: 1.09, 1.88), driven by laboratory-identified infections. After weighting, the ATE was attenuated (RR = 1.37, 95% CI: 0.91, 2.07) and the ATT was null. Gender-stratified analyses suggested elevated STI risk among women in unadjusted models, but weighted estimates were nonsignificant, although clinically diagnosed STIs were less common among women in drug treatment. Findings indicate complex, gender-specific relationships between drug treatment and STI risk and underscore the need for integrated, gender-responsive STI prevention within drug treatment settings.
Reference Key
openalex_W7163064557 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Joy D. Scheidell, B Elkamel, Anne Moore, Ariana Valentin, Jacob Bleasdale
Journal american journal of epidemiology
Year 2026
DOI
10.1093/aje/kwag111
URL
https://doi.org/10.1093/aje/kwag111
Keywords Keywords not found

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