Table 2. Models predicting perceived norms of peer alcohol use.

	Model 1 (Time + Person Level Covariates)			Model 2 (Model 1 + Time Varying Covariates)			Model 3 (Model 2 + Gender × Time Interaction)			Model 4: (Model 2 + Race/Ethnicity × Time Interaction)
	Estimate	SE	P	Estimate	SE	P	Estimate	SE	P	Estimate	SE	P
Constant	−4.17	0.23	<0.001	−2.48	0.19	<0.001	−2.28	0.19	<0.001	−2.30	0.19	<0.001
Time	0.57	0.02	<0.001	0.36	0.02	<0.001	0.42	0.02	<0.001	0.36	0.02	<0.001
Age at baseline	0.58	0.02	<0.001	0.37	0.02	<0.001	0.35	0.02	<0.001	0.35	0.02	<0.001
Male	−0.49	0.03	<0.001	−0.31	0.03	<0.001	−0.30	0.03	<0.001	−0.28	0.03	<0.001
White	0.16	0.05	0.003	0.29	0.05	<0.001	0.28	0.05	<0.001	0.28	0.05	<0.001
Black	−0.12	0.10	0.216	0.13	0.08	0.121	0.13	0.08	0.122	0.12	0.08	0.133
Asian	−0.20	0.05	<0.001	0.02	0.04	0.655	0.02	0.04	0.664	0.01	0.04	0.793
Other	−0.13	0.06	0.027	0.01	0.05	0.756	0.01	0.05	0.756	0.01	0.05	0.834
Hispanic/Latino(a)	Reference	--	--	Reference	--	--	Reference	--	--	Reference	--	--
Alcohol Peer Use				0.82	0.02	<0.001	0.81	0.02	<0.001	0.81	0.02	<0.001
Alcohol Own Use				0.46	0.06	<0.001	0.47	0.06	<0.001	0.47	0.06	<0.001
Alcohol Offers				0.30	0.01	<0.001	0.30	0.01	<0.001	0.30	0.01	<0.001
Male × Time							−0.15	0.03	<0.001
White × Time										0.05	0.04	0.215
Black × Time										−0.03	0.09	0.746
Asian × Time										−0.07	0.04	0.087
Other × Time										−0.07	0.05	0.158