Table 2.

Coefficients [95% confidence intervals (CIs)], zero-inflated negative binomial regression, standard errors adjusted for 72 site clusters, AUDIT score, mean drinking quantity, frequency, and volume (n = 984 respondents)

	y = Frequency	y = Mean Quantity	y = Total Volume	y = AUDIT Score	y = AUDIT Items 4–10
	Coef. [95% CI]a	Coef. [95% CI]a	Coef. [95% CI]a	Coef. [95% CI]a	Coef. [95% CI]a
Individual demographic characteristics
Age	−0.002 [−0.007, 0.003]	−0.015 [−0.018, −0.011]b	−0.008 [−0.014, −0.002]b	−0.013 [−0.017, −0.008]b	0.001 [−0.006, 0.009]
Race/ethnicity
Black/African American	0.050 [−0.332, 0.432]	0.145 [−0.132, 0.422]	−0.064 [−0.523, 0.394]	−0.005 [−0.326, 0.316]	0.133 [−0.262, 0.528]
White/Caucasian	0.498 [0.258, 0.738]b	0.141 [−0.047, 0.330]	0.509 [0.175, 0.843]b	0.280 [0.063, 0.497]b	0.218 [−0.166, 0.601]
Gender
Male	0.189 [0.030, 0.349]b	0.260 [0.135, 0.385]b	0.395 [0.196, 0.595]b	0.369 [0.227, 0.512]b	0.373 [0.089, 0.657] b
Gender minority	0.500 [−0.191, 1.192]	−0.119 [−0.487, 0.249]	0.368 [−0.569, 1.305]	0.182 [−0.741, 1.106]	1.258 [0.835, 1.680] b
Married/living marriage-like relationship	0.209 [0.027, 0.392]b	−0.040 [−0.175, 0.095]	0.039 [−0.139, 0.217]	−0.035 [−0.161, 0.091]	−0.522 [−0.858, −0.186] b
College education or higher	0.458 [0.226, 0.690]b	−0.068 [−0.233, 0.096]	0.177 [−0.100, 0.455]	−0.001 [−0.198, 0.196]	−0.253 [−0.574, 0.068]
Income	0.044 [0.019, 0.068]b	0.000 [−0.010, 0.011]	0.019 [0.000, 0.037]b	0.003 [−0.009, 0.016]	−0.008 [−0.040, 0.024]
Site characteristics
Income: high	0.431 [0.091, 0.772]b	0.003 [−0.158, 0.164]	−0.012 [−0.232, 0.207]	0.088 [−0.057, 0.233]	0.349 [0.051, 0.647] b
Alcohol outlet density: high	−0.163 [−0.324, −0.003]b	0.045 [−0.093, 0.183]	−0.112 [−0.301, 0.076]	−0.048 [−0.185, 0.088]	−0.211 [−0.457, 0.036]
Physical decay	−0.082 [−0.188, 0.023]	−0.028 [−0.112, 0.056]	−0.052 [−0.185, 0.080]	0.036 [−0.058, 0.131]	0.210 [0.062, 0.358] b
Physical disorder	−0.017 [−0.085, 0.051]	−0.017 [−0.066, 0.031]	−0.112 [−0.301, 0.076]	−0.020 [−0.075, 0.035]	−0.008 [−0.113, 0.097]
Interaction term
Individual income x site income (high)	−0.036 [−0.065, −0.007]b	-	-	-	-
Zero inflation: individual demographic characteristics
Age	0.054 [0.009, 0.099]b	0.014 [−0.016, 0.044]	0.039 [0.004, 0.074]b	0.026 [0.003, 0.049] b	0.041 [0.029, 0.053] b
Married/living marriage-like relationship	2.184 [−0.251, 4.619]	2.113 [0.814, 3.413]b	1.860 [0.513, 3.207]b	1.600 [0.569, 2.632] b	0.072 [−0.350, 0.494]
Income	−0.987 [−2.599, 0.626]	−1.012 [−1.484, −0.540]b	−0.807 [−1.330, −0.284]b	−0.652 [−0.954, −0.351] b	−0.045 [−0.076, −0.013] b
AIC	5556.13	2867.99	6488.30	4147.31	1522.16

^aStandard errors are adjusted for 72 site clusters.

^bSignificant as indicated by a 95% confidence interval that excludes zero.