Table 1.
Prevalence and frequency of substance use behaviours in the past month
| n | Weighted % (95% CI) | |
|---|---|---|
| Prevalence of marijuana use in past month | ||
| Smoked marijuana in past month | 290 | 10.1 (8.7-11.5) |
| Did not smoke marijuana in past month | 2680 | 89.9 (88.5-91.3) |
| Frequency of marijuana use in past month | ||
| Never at all | 2426 | 81.0 (78.8-83.1) |
| In the past but not in the past 30 days | 254 | 8.9 (7.5-10.3) |
| Once | 62 | 2.2 (1.6-2.7) |
| Two or three times | 111 | 3.8 (3.1-4.6) |
| Once a week | 32 | 1.1 (0.7-1.6) |
| Several times a week | 37 | 1.3 (0.8-1.8) |
| Every day | 17 | 0.5 (0.3-0.8) |
| Several times a day | 31 | 1.1 (0.7-1.6) |
| Prevalence of tobacco use in past month | ||
| Smoked cigarettes on at least one day in past month | 335 | 11.4 (9.8-12.9) |
| Did not smoke cigarettes on any days in past month | 2658 | 88.6 (87.1-90.2) |
| Frequency of tobacco use in past month | ||
| 0 days | 2658 | 88.6 (87.1-90.2) |
| 1 to 2 days | 123 | 4.1 (3.3-4.8) |
| 3 to 5 days | 46 | 1.6 (1.2-2.0) |
| 6 to 9 days | 19 | 0.6 (0.3-0.9) |
| 10 to 19 days | 43 | 1.5 (1.0-2.1) |
| 20 to 29 days | 27 | 0.9 (0.6-1.3) |
| All 30 days | 77 | 2.6 (1.9-3.4) |
| Prevalence of binge drinking in past month | ||
| Binge drinking in past month | 472 | 16.8 (15.0-18.6) |
| No binge drinking in past month | 2421 | 83.2 (81.4-85.0) |
| Frequency of binge drinking in past month | ||
| Never at all | 2025 | 69.4 (67.1-71.7) |
| In the past but not in the past 30 days | 396 | 13.8 (12.3-15.2) |
| Once | 169 | 6.0 (5.0-7.0) |
| Two or three times | 184 | 6.6 (5.5-7.6) |
| Once a week | 62 | 2.2 (1.5-2.8) |
| Several times a week | 36 | 1.3 (0.9-1.8) |
| Most days | 21 | 0.8 (0.3-1.2) |