Behavioural Intentions Associated with Exposure to Anabolic-Androgenic Steroid Testing Results: A Two-Phase, Multi-Wave Intervention Trial

INTRODUCTION: People who use anabolic-androgenic steroids (AAS) face health risks from illicit markets and limited tailored harm reduction services. This study aimed to examine whether laboratory testing results from submitted AAS products (ie, compound presence and purity) influence AAS consumers' future behaviours. METHODS: As part of Wave 3 of a Steroid Testing Trial (2024), community members in Queensland, Australia, submitted AAS samples for laboratory analysis. Using advanced forensic techniques, we tested these samples for compound presence and dosage accuracy. Participants who accessed their results completed a follow-up survey on demographics, AAS use, healthcare access, and response to results. Behaviour change was measured by self-reported modifications to use. Logistic regression examined predictors including perceived helpfulness, confidence to change, quality concerns, prior health effects, and healthcare access barriers. RESULTS: = .026), while perceived helpfulness, confidence, prior health effects, and healthcare barriers were not significant. CONCLUSIONS: Concern about product quality appears to drive harm reduction behaviours more than perceived helpfulness or confidence. These findings support the value of AAS in drug testing data dissemination that highlights product quality issues.