Table 3.

Latent Binge Drinking Trajectory Classes Associated with Summary Alcohol Policy Scores^a, Beer Excise Taxes, and Liquor Stores (n=2753).

	Binge Drinking Trajectory Classes (reference: Low-Risk; n=1046)
	Escalating			Chronic			Late-Onset			Decreasing			Overall Significance Test
	(n=666)			(n=388)			(n=361)			(n=292)
Modelsb	RRR	95% CI		RRR	95% CI		RRR	95% CI		RRR	95% CI		F-testc	p-value
Overall Alcohol Policies (Model 1)
Overall Policy Score	1.44	1.17	1.77	1.05	0.78	1.43	1.03	0.73	1.45	1.28	0.91	1.79	3.06	0.04
Beer Excise Taxes (in US dollars)	0.21	0.07	0.58	0.72	0.30	1.71	0.35	0.13	0.96	0.71	0.27	1.87	6.29	<0.01
Number of Liquor Stores within 1 km	0.97	0.87	1.09	1.13	0.94	1.36	0.98	0.88	1.09	0.86	0.69	1.07	2.85	0.05
Domain-Specific Policies (Model 2)
Underage Youth Policies	1.24	1.03	1.49	1.00	0.77	1.30	1.04	0.82	1.31	1.07	0.65	1.79	1.71	0.19
Alcohol Provider Policies	1.35	1.17	1.55	1.12	0.94	1.35	1.02	0.70	1.48	1.39	1.08	1.78	7.53	<0.01
Beer Excise Taxes (in US dollars)	0.22	0.09	0.50	0.71	0.28	1.81	0.34	0.12	0.98	0.73	0.24	2.21	6.67	<0.01
Number of Liquor Stores within 1 km	0.98	0.87	1.10	1.14	0.94	1.38	0.97	0.86	1.10	0.88	0.68	1.13	1.81	0.17

Relative risk ratio (RRR); Confidence Interval (CI).

^aPolicy scores were standardized to US national distribution. Higher scores indicated weaker policy environments.

^bModel controlled for neighborhood (median age, socioeconomic disadvantage) and individual factors (sex, race/ethnicity, family affluence).

^cF-tests had 4 and 18 degrees of freedom for the numerator and denominator, respectively.