Table 3.
Logistic regression estimates (OR) of predictors of health risk behaviours (boys) [OR (95 % CI), n = 155]
| Predictor variables | Smoking | Drinking | Binge drinking |
|---|---|---|---|
| Best friend is smoking | 11.7 (4.75-28.9)*** | 3.72 (1.54-9)** | 1.78 (0.91-3.45) |
| Best friend drinks alcohol | 2.86 (0.92-8.9) | 45.8 (13.4-156)*** | 21.9 (2.82-170)** |
| Friends’ smoking | |||
| None/Minority of friends | 1 | 1 | 1 |
| Half of friends | 5.56 (1.96-15.8)** | 4.07 (1.12-14.8)* | 2.32 (0.95-5.66) |
| Majority/All of friends | 18.4 (6.77-49.9)*** | 4.22 (1.34-13.3)* | 2.62 (1.16-5.93)* |
| Friends’ alcohol use | |||
| None/Minority of friends | 1 | 1 | 1 |
| Half of friends | 2.58 (0.99-6.74) | 1.15 (0.38-3.49) | 1.07 (0.42-2.77) |
| Majority/All of friends | 1.29 (0.57-2.92) | 2.3 (0.8-6.62) | 2.37 (1.06-5.32)* |
| Loneliness (cont.) | 0.95 (0.91-0.99)* | 0.93 (0.89-0.97)** | 0.91 (0.86-0.96)** |
| Shyness (cont.) | 0.98 (0.93-1.02) | 0.95 (0.90-0.99)* | 0.97 (0.93-1.01) |
| Need to belong (cont.) | 0.99 (0.93-1.06) | 1.06 (0.99-1.14) | 1.05 (0.98-1.12) |
| Competitiveness (cont.) | 0.99 (0.96-1.03) | 1.06 (1.01-1.11)* | 1 (0.96-1.04) |
| Age (cont.) | 1.38 (0.97-1.95) | 1.49 (1.02-2.16)* | 1.67 (1.19-2.36)** |
aReference category
*p < 0.05
**p < 0.01
***p < 0.001