Table 5.

Multilevel Model Testing Associations Between Playing Drinking Games and Driving-Related Outcomes.

	Drove after drinking N1 = 670 N2 = 4,053		Rode in a car with a driver who had been drinking N1 = 665 N2 = 4,002
	Odds ratio	95 % CI LL, UL	Odds ratio	95 % CI LL, UL
Intercept	0.11***	0.06, 0.17	0.08***	0.05, 0.14
Daily-Level
Weekend	0.96	0.65, 1.42	1.24	0.80, 1.92
Month	1.04	0.94, 1.15	1.00	0.91, 1.11
Week	1.00	0.90, 1.10	1.04	0.95, 1.15
Burst	1.12*	1.02, 1.24	0.99	0.89, 1.10
Number of drinks (CWP)	1.02	0.98, 1.07	1.16***	1.10, 1.21
Played drinking game (CWP)	1.17	0.79, 1.75	1.13	0.77, 1.66
Person-Level
Male Biological Sex	1.12	0.82, 1.52	0.70**	0.52, 0.94
Age	1.55***	1.31, 1.84	1.16	1.00, 1.36
Student	0.99	0.71, 1.38	0.93	0.67, 1.28
Race
White, NH (reference)
Asian, NH	0.89	0.52, 1.50	2.52***	1.60, 3.96
Black, NH	1.57	0.91, 2.70	1.89*	1.13, 3.18
Hispanic	1.15	0.81, 1.61	1.93***	1.40, 2.67
Other	0.73	0.30, 1.77	1.29	0.59, 2.82
Number of drinks (GMC)	1.10	0.95, 1.29	1.21*	1.05, 1.40
Played drinking game (GMC)	0.97	0.83, 1.13	1.05	0.92, 1.20

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; N1 = Number of people; N2 = Number of days. * p <.05, ** p <.01, *** p <.001.