Table 1.

Count ratios (CRs) and their 95% credible intervals (CIs) from Bayesian Markov Chain Monte Carlo Poisson mixed models for Alcohol Use Disorders Identification Test–Consumption (AUDIT-C) score according to covariates

Covariate	Model 1			Model 2			Model 3
	CR	[95% CI]	p	CR	[95% CI]	P	CR	[95% CI]	p
Within-pair deviation in neighborhood deprivation	1.066	[1.013, 1.127]	.022	–	–	–	1.069	[1.014, 1.129]	.018
Twin pair mean neighborhood deprivation	0.957	[0.910, 1.009]	.112	–	–	–	0.940	[0.891, 0.993]	.034
Within-pair deviation in outlet density Twin pair mean of outlet	–	–	–	1.005	[0.997, 1.015]	.246	1.003	[0.994, 1.012]	.606
Density	–	–	–	1.038	[1.25, 1.052]	<.001	1.040	[1.025, 1.054]	<.001
Female sex	0.748	[0.678, 0.803]	<.001	0.744	[0.683, 0.804]	<.001	0.750	[0.692,0 .814]	<.001
Non-White race	0.762	[0.685, 0.849]	<.001	0.751	[0.674, 0.839]	<.001	0.758	[0.681, 0.835]	<.001
Household income	0.990	[0.977, 1.002]	.120	0.992	[0.981, 1.003]	.178	0.990	[0.979, 1.002]	.116
Highest level of education	1.059	[1.040, 1.080]	<.001	1.056	[1.038, 1.078]	<.001	1.053	[1.036, 1.077]	<.001
Rural	0.894	[0.823, 0.955]	.002	0.912	[0.851, 0.976]	.002	0.925	[0.856, 0.992]	.046
Random effects	SD	[95% CI]		SD	[95% CI]		SD	[95% CI]
Census tract intercept	.022	[<.001, .043]		.019	[<.001, .038]		.019	[<.001, .037]
Twin pair intercept	.549	[.484, .611]		.540	[.475, .604]		.541	[.473, .598]
DIC	14,792.68			14,788.12			14,782.10

Notes: p = posterior probability of CR < 1 (if CR > 1) or > 1 (if CR < 1); DIC = deviance information criterion.