From: Somatic health among heroin addicts before and during opioid maintenance treatment: a retrospective cohort study
Relation to substance use*
Before OMT (%)
During OMT (%)
P-value**
Related
123 (62)
29 (36)
Not related
74 (38)
52 (64)
Total
197 (100)
81 (100)
<0.001