Number | Controls % | Intervention % | OR | 95% CI | Adj*OR | 95% CI | |
---|---|---|---|---|---|---|---|
*Adjusted for measure at baseline (wave 1) and gender, family structure, Australian born, parental smoking. | |||||||
Alcohol | |||||||
Any drinking | |||||||
Wave2 | 1081 | 44.0 | 39.4 | 0.83 | (0.63 to 1.09) | 0.93 | (0.71 to 1.21) |
Wave3 | 1227 | 53.6 | 50.3 | 0.88 | (0.65 to 1.19) | 1.00 | (0.78 to 1.28) |
Wave4 | 1619 | 70.2 | 66.3 | 0.83 | (0.55 to 1.28) | 0.96 | (0.69 to 1.33) |
Regular drinker | |||||||
Wave2 | 253 | 10.0 | 9.4 | 0.93 | (0.59 to 1.47) | 1.09 | (0.77 to 1.57) |
Wave3 | 192 | 8.1 | 7.5 | 0.92 | (0.56 to 1.49) | 1.05 | (0.70 to 1.57) |
Wave4 | 106 | 4.4 | 4.5 | 1.02 | (0.62 to 1.68) | 1.13 | (0.77 to 1.66) |
Binge drinking | |||||||
Wave2 | 478 | 19.3 | 17.4 | 0.88 | (0.63 to 1.23) | 0.95 | (0.69 to 1.32) |
Wave3 | 582 | 24.4 | 22.7 | 0.91 | (0.64 to 1.30) | 0.99 | (0.70 to 1.38) |
Wave4 | 815 | 34.6 | 33.3 | 0.94 | (0.63 to 1.39) | 1.02 | (0.71 to 1.46) |
Tobacco | |||||||
Any smoking | |||||||
Wave2 | 607 | 24.9 | 22.0 | 0.85 | (0.66 to 1.09) | 0.89 | (0.72 to 1.12) |
Wave3 | 638 | 28.7 | 25.0 | 0.83 | (0.60 to 1.13) | 0.92 | (0.63 to 1.33) |
Wave4 | 630 | 28.2 | 24.9 | 0.84 | (0.64 1.11) | 0.91 | (0.67 to 1.24) |
Regular smoker | |||||||
Wave2 | 171 | 8.3 | 4.9 | 0.57 | (0.36 to 0.91) | 0.66 | (0.46 to 0.95) |
Wave3 | 232 | 11.9 | 7.7 | 0.62 | (0.39 to 0.99) | 0.72 | (0.47 to 1.09) |
Wave4 | 322 | 15.6 | 11.8 | 0.72 | (0.52 to 1.00) | 0.79 | (0.58 to 1.07) |
Marijuana use | |||||||
Any in past 6 months | |||||||
Wave2 | 307 | 12.2 | 11.5 | 0.94 | (0.62 to 1.41) | 0.98 | (0.69 to 1.40) |
Wave3 | 219 | 9.6 | 10.0 | 1.04 | (0.72 to 1.50) | 1.06 | (0.75 to 1.49) |
Wave4 | 466 | 21.7 | 18.6 | 0.83 | (0.58 to 1.17) | 0.81 | (0.57 to 1.16) |
Friends’ use | |||||||
Alcohol | |||||||
Wave2 | 1468 | 58.5 | 54.6 | 0.85 | (0.59 to 1.23) | 0.96 | (0.67 to 1.37) |
Wave3 | 1663 | 71.3 | 66.8 | 0.81 | (0.56 to 1.17) | 0.91 | (0.64 to 1.27) |
Wave4 | 2027 | 88.5 | 82.9 | 0.63 | (0.40 to 1.00) | 0.71 | (0.47 to 1.09) |
Tobacco | |||||||
Wave2 | 371 | 15.9 | 12.7 | 0.77 | (0.48 to 1.23) | 0.79 | (0.51 to 1.21) |
Wave3 | 433 | 19.8 | 16.0 | 0.77 | (0.51 to 1.18) | 0.84 | (0.52 to 1.36) |
Wave4 | 530 | 24.2 | 20.6 | 0.81 | (0.57 to 1.16) | 0.87 | (0.60 to 1.26) |