Table 2.

Final Multilevel Model Results for Drinking Outcomes

	Drinks per week		Percent days abstinent		Percent heavy drinking days
	Estimate	Std. Error	Estimate	Std. Error	Estimate	Std. Error
Intercept	31.14***	4.23	44.53***	5.34	45.20***	6.36
Linear time	−9.51**	3.10	3.02	3.04	−14.49**	5.24
Quadratic time	2.62*	1.13	−.11	.47	4.64*	1.81
Cubic time	−.25*	.12			−.50**	.18
Group	4.98	5.55	−16.55*	7.22	6.48	8.32
Group by linear time	−4.28*	2.14	10.29*	3.98	−8.25*	3.85
Group by quadratic time	.74*	.32	−1.59*	.62	1.48*	.59

Note. Group was coded: DCU+bib = 0, LBMI-A = 1. Race/ethnicity and number of DSM-5 alcohol use disorder criteria met were included as mean centered covariates in each model. Gender was included in the drinks per week analysis, coded men = 0, women = 1.

^*p < .05.

^**p < .01.

^***p < .001.