Fig. 3From: Participation dynamics of a cohort of drug users in a low-threshold methadone treatment programmeLongitudinal pattern of monthly prescribed doses of methadone users in the cohort. Prescribed dosages were categorised into eight groups: ≥70, 60–69, 50–59, 40–49, 30–39, 20–29, 10–19, and <10 mgBack to article page