Table 1.

Estimated coefficients and standard errors for the Stage 1 Q-function (n=591, pooled across 10 multiply imputed datasets with 1,000 bootstraps per imputed dataset)

Term	Coef.	Bootstrap SE	Percentile 95% CI - lower	Percentile 95% CI - upper	P-value
(Intercept)	−1.324	0.19	−1.78	−1.03	<0.001
Baseline binge drinking frequency (per 30 days)	0.161	0.04	0.11	0.25	<0.001
A1 (1=early, −1=late)	−0.002	0.20	−0.40	0.39	0.98
D (1=pre-college drinker, 0=non-drinker)	0.985	0.28	0.47	1.55	<0.001
D * conformity score	−0.015	0.02	−0.06	0.03	0.51
D * social score	0.019	0.02	−0.02	0.06	0.34
D * enhancement score	0.028	0.02	−0.01	0.06	0.12
D * coping score	−0.010	0.02	−0.05	0.02	0.48
A1 * D	−0.086	0.30	−0.68	0.51	0.76
A1 * D * conformity score	−0.016	0.02	−0.06	0.03	0.46
A1 * D * social score	−0.024	0.02	−0.07	0.01	0.20
A1 * D * enhancement score	0.017	0.02	−0.02	0.05	0.32
A1 * D * coping score	0.034	0.02	0.00	0.07	0.07