Table 1.
Baseline characteristics of 2550 people who use injection drugs, stratified by binge alcohol use in the last 6 months, in Vancouver, Canada, 1996–2013.
| Characteristic | Total N = 2550 (%) |
Binge alcohol n = 381 |
No binge alcohol n = 2164 |
Odds ratio (95% CI) | p-Value |
|---|---|---|---|---|---|
| Gender | |||||
| Male | 1687 (66.2) | 252 (66.1) | 1432 (66.2) | 1.00 (0.79, 1.26) | 0.990 |
| Female | 863 (33.8) | 129 (33.9) | 732 (33.8) | ||
| Age† | |||||
| Median (IQR) | 37.7 (29.9–44.2) | 34.6 (27.0–41.3) | 38.3 (30.6–44.8) | < 0.001 | |
| Caucasian ethnicity | |||||
| Yes | 1541 (60.4) | 174 (45.7) | 1363 (63.0) | 0.49 (0.40, 0.62) | < 0.001 |
| No | 1009 (39.6) | 207 (54.3) | 801 (37.0) | ||
| Unstable housing⁎ | |||||
| Yes | 1770 (69.4) | 254 (66.7) | 1512 (69.9) | 0.87 (0.69, 1.10) | 0.233 |
| No | 759 (29.8) | 123 (32.3) | 635 (29.3) | ||
| HIV serostatus⁎ | |||||
| Positive | 844 (33.1) | 95 (24.9) | 746 (34.5) | 0.63 (0.49, 0.81) | < 0.001 |
| Negative | 1705 (66.9) | 285 (74.8) | 1418 (65.5) | ||
| Enrolment in MMT⁎ | |||||
| Yes | 594 (23.3) | 24 (6.3) | 569 (26.3) | 0.19 (0.12, 0.29) | < 0.001 |
| No | 1946 (76.3) | 357 (93.7) | 1586 (73.3) | ||
| ≥ Daily heroin injection⁎ | |||||
| Yes | 917 (36.0) | 101 (26.5) | 814 (37.6) | 0.60 (0.47, 0.76) | < 0.001 |
| No | 1627 (63.8) | 279 (73.2) | 1345 (62.2) | ||
| ≥ Daily cocaine injection⁎ | |||||
| Yes | 735 (28.8) | 143 (37.5) | 590 (27.3) | 1.61 (1.28, 2.02) | < 0.001 |
| No | 1799 (70.5) | 235 (61.7) | 1561 (72.1) | ||
| ≥ Daily crack cocaine smoking⁎ | |||||
| Yes | 614 (24.1) | 56 (14.7) | 557 (25.7) | 0.50 (0.37, 0.67) | < 0.001 |
| No | 1933 (75.8) | 325 (85.3) | 1604 (74.1) | ||
| ≥ Daily amphetamine injection⁎ | |||||
| Yes | 44 (1.7) | 1 (0.3) | 43 (2.0) | 0.13 (0.02, 0.94) | 0.010† |
| No | 2500 (98.0) | 380 (99.7) | 2115 (97.7) |
Note: CI = confidence interval; IQR = interquartile range; MMT = methadone maintenance treatment.
†
p-Value Fisher's exact test report as ‘yes’ sample N = 1.
⁎
Behaviours and status in the last 6 months.