Table 1.
Baseline characteristics of people who used illicit drugs in the study sample (n = 1422)
| Characteristic | Total (%) n =1422 | In-hospital illicit drug use | P-value | |
|---|---|---|---|---|
| Yes (%) 436 (30.7) | No (%) 986 (69.3) | |||
| Main exposure | ||||
| At least daily non-medical prescription opioid use* | 77 (5.4%) | 30 (6.9%) | 47 (4.8%) | 0.10 |
| Covariates | ||||
| ARYS cohort | 224 (15.8%) | 48 (11.0%) | 176 (17.8%) | <0.01 |
| Age, years (median, Q1–Q3) | 40.6 (30.8–47.1) | 39.4 (32–46.2) | 41.3 (30.3–47.5) | 0.09 |
| Male sex | 951 (66.9%) | 261 (59.9%) | 690 (70.0%) | <0.01 |
| Injection drug use of any substance* | 1073 (75.5%) | 360 (82.6%) | 713 (72.3%) | <0.01 |
| At least daily heroin use* | 299 (21.0%) | 126 (28.9%) | 173 (17.5%) | <0.01 |
| At least daily cocaine use* | 124 (8.7%) | 58 (13.3%) | 66 (6.7%) | <0.01 |
| At least daily crystal methamphetamine use* | 62 (4.4%) | 18 (4.1%) | 44 (4.5%) | 0.78 |
| At least daily marijuana use* | 362 (25.5%) | 108 (24.8%) | 254 (25.8%) | 0.71 |
| Enrolment in opioid agonist treatment* | 483 (34.0%) | 180 (41.3%) | 303 (30.7%) | <0.01 |
| Binge drug use* | 547 (38.5%) | 175 (40.1%) | 372 (37.7%) | 0.36 |
| Public drug use* | 402 (28.3%) | 171 (39.2%) | 231 (23.4%) | <0.01 |
| Ever had insufficient pain medication | 193 (13.6) | 70 (16.1%) | 123 (12.5%) | 0.07 |
ARYS, at risk youth study; Q, quartile.
*
Indicates activities/behaviours in the 6 months prior to interview.