. Author manuscript; available in PMC: 2020 Jun 1.

Published in final edited form as: Alcohol Clin Exp Res. 2019 Apr 29;43(6):1254–1262. doi: 10.1111/acer.14037

Table 2.

Results of mixed moderated models of peer effects, GPS, and their interactions

	Model 1		Model 2
Variable	B	CI	B	CI
(Intercept)	0.10	[−3.61, 3.81]	0.03	[−3.70, 3.76]
Sex (0 = Male)	−0.09	[−0.22, 0.05]	−0.08	[−0.22, 0.056]
Race/Ethnicity (0 = White)
Black	0.05	[−0.27, 0.38]	0.06	[−0.27, 0.39]
Asian	*0.49*	*[0.26, 0.73]*	*0.50*	*[0.27, 0.74]*
More than one race	−0.12	[−0.45, 0.20]	−0.11	[−0.44, 0.21]
Hispanic/Latino	−0.07	[−0.37, 0.23]	−0.08	[−0.38, 0.22]
Other race/ethnicity	0.32	[−0.49, 1.14]	0.35	[−0.47, 1.16]
Age	−0.01	[−0.21, 0.19]	0.00	[−0.21, 0.20]
Fall Drinking (log)	*0.49*	*[0.41, 0.56]*	*0.48*	*[0.41, 0.56*
GPS Count	−0.16	[−0.29, −0.03]	−0.16	[−0.29, −0.03]
Cohort (0 = Cohort 1)
Cohort 2	0.01	[−0.16, 0.18]	0.00	[−0.17, 0.18]
Cohort 3	0.11	[−0.04, 0.25]	0.10	[−0.04, 0.25]
Perceptions of College Peer Use	*0.37*	*[0.30, 0.44]*	*0.37*	*[0.30, 0.44]*
Avg. Roommate Fall Drinking (log)	*0.10*	*[0.04, 0.17]*	*0.10*	*[0.03, 0.17]*
Avg. Residence Hall Fall Drinking	−0.01	[−0.08, 0.07]	−0.01	[−0.08, 0.07]
Alc-GPS	*0.12*	*[0.06, 0.19]*	*0.12*	*[0.06, 0.19]*
Perceptions*Alc-GPS			0.00	[−0.07, 0.06]
Roommate Drinking (log)*Alc-GPS			−0.01	[−0.08, 0.05]
Residence Hall Drinking*Alc-GPS			0.02	[−0.05, 0.08]
Observations	482
R²	0.55

Alc-GPS refers to the genome-wide polygenic risk score for alcohol; GPS Count refers to the number of SNPs available for scoring when calculating the GPS. All continuous predictor variables were standardized and the outcome variable was standardized within ancestry. Bold type indicates p <= .05, and bold italic type indicates p <= .01.