Release Date
Geography
Language of Resource
Full Text Available
Open Access / OK to Reproduce
Peer Reviewed
Objective
This study aims to identify person-centred longitudinal patterns of polysubstance use (PSU) among a cohort of people who use opioids (PWUO).
Findings/Key points
We found five distinct PSU patterns, including low/infrequent probability of regular substance use (Class 1; 30%), primarily opioid and methamphetamine use (Class 2; 22%), primarily cannabis use (Class 3; 15%), primarily opioid and crack use (Class 4; 29%) and frequent PSU (Class 5; 4%). Membership in Class 2, 4 and 5 was positively associated with several behavioural and socio-structural adversities.
Design/methods
Longitudinal data from three prospective cohort studies (n=2627)