| Variable | In last 30 d | Ever | ||
|---|---|---|---|---|
| Weighted prevalence (95% CI), % | Odds ratio (99% CI) | Weighted prevalence (95% CI), % | Odds ratio (99% CI) | |
| Canada (total) | 11.0 (10.2-11.9) | 34.6 (32.4-36.9) | ||
| Sex | ||||
| Female | 12.2 (10.9-13.6) | 1.233 (0.990-1.536) | 38.2 (35.5-41.0) | 1.337 (1.159-1.543) |
| Male | 9.9 (8.9-10.9) | Reference | 31.2 (29.1-33.3) | Reference |
| Grade | ||||
| 9 | 9.1 (7.6-10.6) | Reference | 29.8 (27.1-32.5) | Reference |
| 10 | 11.1 (9.9-12.2) | 0.952 (0.698-1.301) | 34.5 (31.9-37.2) | 1.006 (0.847-1.196) |
| 11 | 12.4 (11.1-13.7) | 0.995 (0.737-1.344) | 36.9 (34.7-39.1) | 1.045 (0.869-1.257) |
| 12 | 11.6 (9.7-13.5) | 0.879 (0.652-1.186) | 37.3 (32.9-41.7) | 1.008 (0.809-1.255) |
| Ethnicity | ||||
| White | 13.4 (12.2-14.6) | Reference | 39.6 (36.8-42.5) | Reference |
| Black | 7.9 (4.3-11.5)† | 0.806 (0.428-1.519) | 24.4 (16.6-32.2) | 0.691 (0.441-1.084) |
| Asian | 5.5 (4.6-6.5) | 0.682 (0.492-0.946) | 22.4 (20.5-24.3) | 0.798 (0.626-1.017) |
| Latin American | 7.7 (4.8-10.7)† | 0.604 (0.342-1.066) | 39.7 (32.4-47.0) | 1.112 (0.697-1.774) |
| Aboriginal | 12.4 (9.8-15.0) | 0.860 (0.564-1.312) | 42.7 (37.6-47.8) | 1.014 (0.740-1.389) |
| Other | 11.0 (8.1-13.9) | 1.051 (0.662-1.667) | 30.1 (22.3-37.9) | 0.874 (0.568-1.344) |
| Province | ||||
| British Columbia | 11.4 (8.8-13.9) | 1.237 (0.860-1.780) | 34.9 (28.7-41.1) | 1.059 (0.773-1.452) |
| Alberta | 9.9 (7.6-12.1) | 1.200 (0.808-1.781) | 31.3 (28.7-33.8) | 1.009 (0.740-1.376) |
| Saskatchewan | 14.7 (11.3-18.1) | 1.444 (1.029-2.026) | 38.7 (29.1-48.2) | 1.070 (0.702-1.630) |
| Manitoba | 9.1 (7.0-11.1) | 0.888 (0.578-1.366) | 30.5 (24.4-36.6) | 0.790 (0.516-1.210) |
| Ontario | 9.1 (7.8-10.3) | Reference | 30.9 (26.7-35.1) | Reference |
| Quebec | 15.4 (12.4-18.5) | 1.309 (0.881-1.946) | 43.8 (40.0-47.5) | 1.204 (0.855-1.694) |
| Nova Scotia | 9.2 (7.8-10.7) | 0.807 (0.615-1.060) | 30.6 (27.8-33.3) | 0.799 (0.588-1.087) |
| Prince Edward Island | 10.6 (9.0-12.2) | 0.939 (0.646-1.365) | 34.8 (31.9-37.8) | 0.895 (0.648-1.236) |
| Newfoundland and Labrador | 10.0 (8.3-11.7) | 0.864 (0.684-1.090) | 31.4 (26.2-36.7) | 0.789 (0.579-1.076) |
| School socioeconomic status | ||||
| Low median | 12.2 (10.9-13.6) | Reference | 40.0 (37.0-43.0) | Reference |
| High median | 10.1 (8.8-11.4) | 0.997 (0.807-1.231) | 30.3 (27.1-33.4) | 0.789 (0.620-1.004) |
| Urban | ||||
| Yes | 9.6 (8.6-10.7) | Reference | 30.7 (28.3-33.3) | Reference |
| No | 16.4 (14.1-18.6) | 1.094 (0.841-1.425) | 49.5 (46.2-52.8) | 1.394 (1.128-1.723) |
| Drinking behaviour | ||||
| Does not drink | 3.5 (2.8-4.1) | Reference | 17.0 (14.8-19.2) | Reference |
| Drinks but no binging | 8.5 (6.8-9.5) | 2.259 (1.432-3.561) | 32.9 (29.1-36.8) | 2.072 (1.600-2.685) |
| Binge drinks | 18.5 (17.1-20.0) | 5.425 (3.681-7.995) | 49.8 (47.1-52.6) | 3.893 (3.138-4.829) |
Note: CI = confidence interval.
*All logistic regressions were conducted with the use of a complete-case methods approach, so the results presented here are among all cases with complete data.
†Moderate sampling variability; interpret with caution.