Description of the opioid use disorder cohort and of the stratifications, OAT and non-OAT groups
| VARIABLE | TOTAL COHORT, N = 1910* | NON-OAT GROUP, N = 1522* | OAT GROUP, N = 388* |
|---|---|---|---|
| Mean (SD) age, y | 31.9 (9.9) | 32.1 (10.3) | 31.2 (8.3) |
| Male, n (%) | 1269 (66.4) | 1043 (68.5) | 226 (58.3) |
| Ethnicity, n (%) | |||
| • Canadian | 1572 (86.2) | 1278 (86.6) | 294 (84.7) |
| • Indigenous | 115 (6.3) | 95 (6.4) | 20 (5.8) |
| • Other | 136 (7.5) | 103 (7.0) | 33 (9.5) |
| Rural, n (%) | 311 (16.3) | 252 (16.6) | 59 (15.2) |
| Pregnant (women only), n (%) | 33 (5.1) | 17 (3.5) | 16 (9.9) |
| Housing status, n (%) | |||
| • Housed | 1712 (89.8) | 1375 (90.5) | 337 (86.9) |
| • Unknown | 144 (7.5) | 97 (6.4) | 47 (12.1) |
| • No fixed address | 51 (2.7) | 47 (3.1) | 4 (1.0) |
| Substance use, n (%) | |||
| • Reported other presenting problem substances | 1616 (84.6) | 1292 (84.9) | 324 (83.5) |
| • Used other substances in past 12 mo | 1724 (90.3) | 1375 (90.3) | 349 (90.0) |
| • Tobacco use | 867 (45.4) | 600 (39.4) | 267 (68.8) |
| • Heroin or opium as a presenting problem substance | 398 (20.8) | 263 (17.3) | 135 (34.8) |
| • Injection drug use in past year | 736 (38.5) | 499 (32.8) | 237 (61.1) |
| Health status, n (%) | |||
| • Mental health problems | 1130 (59.2) | 890 (58.5) | 240 (61.9) |
| • Self-reported disability | 285 (14.9) | 221 (14.5) | 64 (16.5) |
| • Hospitalized in past 12 mo | 390 (20.4) | 309 (20.3) | 81 (20.9) |
| Social characteristics, n (%) | |||
| • Mandated treatment | 277 (14.5) | 214 (14.1) | 63 (16.2) |
| • Criminal justice involvement | 543 (28.4) | 396 (26.0) | 147 (37.9) |
| • In a relationship | 354 (18.5) | 292 (19.2) | 62 (16.0) |
| • Not completed high school | 682 (36.6) | 538 (36.4) | 144 (37.5) |
| • Fully employed | 428 (22.4) | 378 (24.8) | 50 (12.9) |
| • Recipient of governmental income support† | 858 (44.9) | 618 (41.0) | 240 (61.9) |
| Mean (SD) no. of previous admissionsǂ | 0.1 (0.5) | 0.1 (0.5) | 0.1 (0.4) |
DATIS—Drug and Alcohol Treatment Information System, OAT—opioid agonist therapy.
↵* Information was not available for all participants for all variables. Proportions are calculated based on the number of participants with data related to the variable.
↵† This includes Ontario Disability Support Plan or Ontario Works.
↵ǂ Ever recorded in DATIS.