Chunk #9 — 2. Method — 2.2. Participants

Source

Opioid dependence latent structure: two classes with differing severity?

Embedded

yes

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Most participants (86.1 per cent) were in treatment at the time of interview. The median age of initiation to heroin use was 18 years and the median age for first seeking treatment for opioid dependence was 24 years. The median duration of opioid dependence was 8 years. Males constituted 60.3 per cent of the sample (Table 1).