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Baseline descriptive characteristics
| Study population (N=410) | |
|---|---|
| Age, mean (SD), years | 38.4 (12.1) |
| Male, number (%) | 261 (63.7) |
| Race, number (%) | |
| White | 293 (71.5) |
| African American or Black | 107 (26.1) |
| Other | 10 (2.4) |
| Tobacco use, number (%) | |
| Current | 353 (86.1) |
| Former | 17 (4.2) |
| Alcohol use, number (%) | |
| Current | 192 (46.8) |
| Former | 97 (23.7) |
| Opioid use at screening, number (%) | |
| Non-injectable | 217 (52.9) |
| Injectable | 193 (47.1) |
