Proportion of pupils reporting any heavy drinking episode in the previous 30 days at 33 months by group
| Intervention, n=4189 | Education as normal, n=4037 | Difference in effect (proportion of pupils reporting a heavy drinking episode in previous 30 days avoided) (95% CI)* |
| 0.15 (0.14, 0.17) | 0.23 (0.21, 0.25) | 0.08 (0.06 to 0.09) |
Values are proportion (95% CI) adjusted for baseline covariates and clustering.
n, number analysed.
*CI based on 1000 bootstrap resamples.