| Smoking | Alcohol use | Cannabis use | ||||||
---|---|---|---|---|---|---|---|---|---|
Variable | OR | 95% CI | P | OR | 95% CI | P | OR | 95% CI | P |
Felt sad or hopeless ≥ 2 weeks in a row in past 12 months | 1.4 | 0.8-2.4 | ns | 1.9 | 1.3-2.8 | 0.001 | 1.8 | 0.8-4.2 | ns |
Often felt lonely in past 12 months | 1.7 | 1.0-3.2 | 0.065 | 1.4 | 0.8-2.3 | ns | 0.6 | 0.2-2.3 | ns |
Was so worried about something that could not sleep at night in past 12 months | 2.4 | 1.3-4.5 | 0.005 | 1.3 | 0.8-2.3 | ns | 2.6 | 1.0-6.9 | 0.049 |
Seriously considered attempting suicide in past 12 months | 3.4 | 2.0-5.8 | 0.000 | 2.5 | 1.5-4.0 | 0.000 | 2.8 | 1.2-6.8 | 0.018 |
Parents rarely/never check homework | 1.5 | 0.9-2.6 | ns | 2.1 | 1.4-3.1 | 0.000 | 2.6 | 1.1-6.3 | 0.029 |
Parents rarely/never understand problems | 1.0 | 0.6-1.7 | ns | 1.5 | 1.1-2.2 | 0.026 | 1.7 | 0.7-4.0 | ns |
Parents rarely/never know what child is doing | 1.6 | 0.9-2.7 | 0.080 | 1.7 | 1.1-2.5 | 0.009 | 2.0 | 0.8-5.1 | ns |
Pocket money ≥ 25 rupees per day | 1.7 | 1.0-3.0 | 0.061 | 1.0 | 0.6-1.5 | ns | 1.6 | 0.6-4.5 | ns |
School absence without permission ≥ 1 day in past 30 days | 5.7 | 3.3-9.9 | 0.000 | 2.7 | 1.7-4.2 | 0.000 | 10.5 | 3.9-28.5 | 0.000 |
Has less than 2 close friends | 0.9 | 0.5-1.7 | ns | 1.5 | 1.0-2.3 | 0.068 | 0.6 | 0.2-2.0 | ns |
Intraclass correlation (min-max) | 0.00-0.02 | 0.08-0.14 | 0.21-0.25 | ||||||
Sample size (min-max) | 662-704 | 597-634 | 679-721 |