Odds ratios (OR) for factors affecting smoking behaviours of high school students using multivariate logistic regression
| Influencing factors | Boys | Girls | Total |
|---|---|---|---|
| *Adjusted for type of school and parental influence. | |||
| †Adjusted for type of school and peer influence. | |||
| p<0.01, interaction between smoking and TLC; p = 0.29, interaction between peer and parental influence. | |||
| Peer influence* | 1.8 (1.6 to 2.0) | 1.3 (1.1 to 1.5) | 1.7 (1.5 to 1.8) |
| Parental influence† | |||
| Smoking | 1.8 (1.6 to 2.0) | 2.0 (1.6 to 2.5) | 1.8 (1.6 to 2.0) |
| Low TLC | 2.1 (1.8 to 2.5) | 2.2 (1.6 to 3.1) | 2.1 (1.8 to 2.4) |
| Combined effect (smoking and low TLC) | 2.8 (2.4 to 3.2) | 3.9 (3.0 to 5.0) | 3.0 (2.7 to 3.4) |