Multiplex crack smoking and sexual networks: associations between network members’ incarceration and HIV risks among high-risk MSM

This study examined HIV risks in the multiplex crack-smoking and sexual networks of incarcerated drug-using men who have sex with men (MSM) and their associates. We estimated the associations between the network members’ incarceration, self-reported HIV infection, and trading sex for money. Our analytic sample consisted of 508 crack-smoking or sexual partnerships of 273 high-risk MSM. Network members were specified by (1) crack smoking and sexual behavior or (2) crack smoking only. Longer incarceration of the crack-smoking and sexual network members was associated with self-reported HIV infection (AOR = 1.61, p