Unadjusted and adjusted associations between multiple variables of interest and decreased consumption of illicit opioid drugs among adults incarcerated in Quebec, Canada
| Characteristic | Unadjusted RR (95% CI) | Adjusted* RR (95% CI) |
|---|---|---|
| Age category | ||
| 18–39 years | Reference | Reference |
| ≥ 40 years | 0.85 (0.78–0.93) | 0.89 (0.86–0.92) |
| Ethnicity | ||
| White | Reference | Reference |
| Other§ | 1.08 (0.95–1.23) | 1.02 (0.93–1.11) |
| Annual income (in CAD) | ||
| $0–$29,999 | Reference | Reference |
| ≥$30,000 | 0.80 (0.70–0.91) | 0.79 (0.60–1.03) |
| Household density¶ | ||
| 1 (i.e. living alone) | Reference | Reference |
| ≥2 | 1.32 (1.22–1.42) | 1.30 (1.09–1.55) |
| History of opioid overdose since March 2020 | ||
| No | Reference | Reference |
| Yes | 1.13 (1.04–1.23) | 1.09 (1.00–1.18) |
| Characteristic | Unadjusted RR (95% CI) | Adjusted |
|---|---|---|
| 18–39 years | ||
| ≥ 40 years | 0.85 (0.78–0.93) | 0.89 (0.86–0.92) |
| White | ||
| Other§ | 1.08 (0.95–1.23) | 1.02 (0.93–1.11) |
| $0–$29,999 | ||
| ≥$30,000 | 0.80 (0.70–0.91) | 0.79 (0.60–1.03) |
| 1 (i.e. living alone) | ||
| ≥2 | 1.32 (1.22–1.42) | 1.30 (1.09–1.55) |
| No | ||
| Yes | 1.13 (1.04–1.23) | 1.09 (1.00–1.18) |
Notes:
CAD: Canadian dollars; CI: confidence interval; RR: risk ratio; *adjusted for age, ethnicity, income, living alone and overdose history; §Other includes Indigenous, Black, Latin American, Arab and Asian; ¶outside prison