Table 2 Prevalence rates stratified by school attendance status and odds ratios for substance abuse and selected covariates (N = 1535)
Prevalence | Odds ratio (95% CI) p-value Simple models, adjusted for design only1 | ||
|---|---|---|---|
Not in school % (95% CI) | In-school % (95% CI) | ||
Life-time meth. use (Reference category (Ref)): Never used meth) | 12.4 (8.5 - 17.7) | 6.1 (4.1 - 9.0) | 2.19 (1.39 - 3.46) p < 0.01 |
Life-time cannabis use (Reference category (Ref)): Never used cannabis) | 30.7 (23.3 - 39.3) | 20.3 (17.6 - 23.2) | 1.75 (1.22 - 2.49) p < 0.01 |
Current alcohol use (Ref: Not using alcohol currently) | 7.7 (4.9 - 12.0) | 6.4 (4.6 - 8.8) | 1.22 (0.7 - 2.12) p > 0.05 |
Current smoking (Ref. Not smoking currently) | 34.2 (26.0 - 43.4) | 18.8 (14.9 - 23.4) | 2.25 (1.45 - 3.48) p <0.01 |
Ever repeated a year at school (Ref. Never repeated a year) | 37.7 (30.7 - 45.3) | 22.7 (16.7 - 30.0) | 2.07 (1.42 - 3.02) p < 0.01 |
Age > than norm for grade (Ref. Age normal) | 32.2 (22.3 - 44.1) | 15.7 (9.2 - 25.6) | 2.55 (1.85 - 3.52) p < 0.01 |