Table 3 Weekly alcohol consumption [standard deviations (SD)] at one and six months follow-up by condition (WDYD intervention versus control): intention-to-treat analyses (multiple imputation) (N = 609) and completers-only analyses (n = 280) adjusted for clustering and covariates (i.e., gender and education level)
Intervention | Control | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
M | SD | M | SD | dif | Beta | SE | P | Cohen’s d | ||
1-month follow-up | ||||||||||
Intention-to-treat | 13.2 | 16.1 | 12.3 | 15.0 | 0.9 | −0.01 | 0.05 | 0.86 | 0.06 | |
Completers-only | 13.0 | 16.2 | 10.8 | 12.2 | 2.2 | −0.01 | 0.06 | 0.93 | −0.02 | |
6-month follow-up | ||||||||||
Intention-to-treat | 12.2 | 15.1 | 11.7 | 14.0 | 0.5 | −0.01 | 0.05 | 0.89 | 0.00 | |
Completers-only | 11.5 | 14.4 | 10.8 | 12.3 | 0.7 | −0.01 | 0.06 | 0.83 | 0.08 | |