Table 2.

Zero-Inflated Negative Binomial Multilevel Model Predicting # Drinks of Friend

Zero-Inflated Negative Binomial Regression Submodel (Count)
	OR/RR	95% CI LL, UL
Intercept	0.19***	0.12, 0.31
Person-Level
Male Biological Sex	0.61*	0.39, 0.97
Age	1.17	0.94, 1.45
Race (White, NH - reference)
Asian, NH	0.55	0.28, 1.08
Black, NH	1.25	0.64, 2.45
Hispanic	1.33	0.80, 2.21
Another Race	0.74	0.21, 2.66
Lifetime Drinking	1.19	0.89, 1.58
Attitudes (GMC)	1.78***	1.41, 2.24
Prototype Favorability (GMC)	1.37*	1.06, 1.77
Prototype Similarity (GMC)	1.32*	1.02, 1.71
Perceived Vulnerability (GMC)	1.18	0.93, 1.50
Daily-Level
Weekend	1.60***	1.48, 1.74
Month	1.08***	1.04, 1.12
Burst	1.13***	1.08, 1.17
Attitudes (CWP)	1.09***	1.06, 1.11
Prototype Favorability (CWP)	1.09	0.98, 1.22
Prototype Similarity (CWP)	1.13***	1.07, 1.19
Perceived Vulnerability (CWP)	1.02	0.97, 1.06
Logistic Regression Submodel (Likelihood of Zero)
Intercept	0.15***	0.07, 0.34
Person-Level
Male Biological Sex	0.33***	0.19, 0.57
Age	0.88	0.73, 1.05
Race (White, NH - reference)
Asian, NH	1.25	0.64, 2.46
Black, NH	1.22	0.71, 2.11
Hispanic	3.00***	1.81, 4.98
Another Race	2.47*	1.11, 5.47
Lifetime Drinking	1.10	0.86, 1.40
Attitudes (GMC)	0.07***	0.02, 0.25
Prototype Favorability (GMC)	0.81*	0.67, 0.98
Prototype Similarity (GMC)	1.21	0.95, 1.54
Perceived Vulnerability (GMC)	0.52***	0.41, 0.66
Daily-Level
Weekend	0.24***	0.17, 0.34
Month	0.82*	0.69, 0.98
Burst	1.43***	1.19, 1.71
Attitudes (CWP)	0.06***	0.02, 0.22
Prototype Favorability (CWP)	0.36***	0.23, 0.57
Prototype Similarity (CWP)	0.68*	0.50, 0.93
Perceived Vulnerability (CWP)	0.87	0.79, 1.10

Note: Daily-level predictors were centered within-person (CWP); Person-level predictors were grand-mean-centered (GMC); LL = lower limit; UL = upper limit; NH = Non-Hispanic; Number of people = 302; Number of days = 8,163.

^*p < .05

^**p < .01

^***p < .001