Alcohol, tobacco and cannabis use among Nova Scotia adolescents: implications for prevention and harm reduction
| Table 4: Patterns of alcohol, tobacco and cannabis use versus no alcohol, tobacco or cannabis use, in 1996 as determined by multivariate regression analysis | |||||
| Variable | Drug use; relative risk (and 95% CI) | ||||
| Alcohol only | Alcohol and tobacco | Alcohol and cannabis | Tobacco only | All 3 drugs | |
| Age (for each additional year) | 1.57*
(1.48-1.66) | 1.51* (1.41-1.62) | 1.77* (1.65-1.91) | 1.05 (0.95-1.16) | 1.72* (1.63-1.82) |
| Female sex | 0.87
(0.71-1.06) | 1.47† (1.13-1.93) | 0.74‡ (0.56-0.96) | 1.62† (1.12-2.33) | 1.02 (0.84-1.23) |
| Grade point average <60% | 1.30
(0.88-1.93) | 4.33* (2.93-6.41) | 1.76‡ (1.11-2.79) | 3.11* (1.78-5.42) | 4.86* (3.58-6.60) |
| *p < 0.001.
†p < 0.01. ‡p < 0.05.. | |||||