Public injecting and its association with mental health and other drug-related outcomes among people who inject drugs in Iran.

Background: Injecting in public places may increase the risk of drug and health-related harms among people who inject drugs (PWID). We examined the prevalence of public injecting and associations with non-fatal overdose, needle/syringe sharing, sexual health, and mental health among PWID in Iran.

Methods: Using respondent-driven sampling, we recruited 2684 PWID from 11 major cities between July 2019 and March 2020.