Table 2.

ZIP Regression Analyses Predicting the Number of Times Incarcerated Individuals Avoided Seeking Medical Attention in the Prior 3 Months Due to Copayment Fee

	Count Model		Zero-Inflated Model
	IRR	95% CI	IRR	95% CI
Gender (male = 0; female = 1)	1.50*	[1.06, 2.12]	1.71	[−1.99, 5.42]
Age	1.00	[0.99, 1.01]	0.04	[−0.01, 0.09]
Race (White = 0; non-White = 1)	1.36*	[1.02, 1.80]	−0.35	[−1.60, 0.90]
Physical health (1 = awful; 10 = excellent)	0.83***	[0.76, 0.90]	0.16	[−0.16, 0.48]
Current balance in account	1.00	[1.00, 1.00]	0.00	[0.00, 0.00]
Currently have prison job (no = 0; yes = 1)	0.93	[0.67, 1.30]	−1.54*	[−3.01, −0.08]
Log likelihood	−229.52
X2	31.56***

IRR = incidence rate ratio; CI = confidence interval. ^*p < .05; ^**p < .01; ^***p < .001.