Table 3.

Naïve and inverse probability weighted mixed effects regression models for the association of area deprivation index and individual chronic Hepatitis C virus infection with catchment area defined by three distance-based thresholds (75%, 80%, and 90% of patients) for a federally qualified health center serving New Castle County, Delaware, USA.

	Marginal adjusted odds ratio (95% confidence interval)
Characteristic	Naïve model	Inverse probability weighted models
		75^th percentile	80^th percentile	90^th percentile

*Individual-level*
Age^a	1.69 (1.51, 1.89)^b	1.68 (1.51, 1.83)^b	1.73 (1.56, 1.89)^b	1.68 (1.54, 1.82)^b
Sex
Female	Ref	Ref	Ref	Ref
Male	1.81 (1.41, 2.33)^b	1.83 (1.11, 2.30)^b	1.65 (1.07, 2.07)^b	1.70 (1.22, 2.09)^b
Race
White	Ref	Ref	Ref	Ref
Non-white	0.74 (0.57, 0.97)^b	0.63 (0.37, 0.78)^b	0.70 (0.42, 0.89)^b	0.70 (0.44, 0.88)^b
Insurance
Non-private	Ref	Ref	Ref	Ref
Private	0.43 (0.31, 0.59)^b	0.35 (0.18, 0.48)^b	0.38 (0.21, 0.51)^b	0.42 (0.26, 0.57)^b
*ZIP code-level*
Area deprivation index	1.25 (1.06, 1.48)^b	1.39 (1.00, 1.56)	1.39 (1.04, 1.59)^b	1.27 (1.01, 1.44)^b
*Measure of model fit*
Akaike information criterion	2,206	1,556	1,660	1,963

Variable standardized and centered for modeling

p<0.05

Operationalized as a Z-score composite of ZIP code-level 2017 American Community Survey 5-year estimates based on indicators of education, employment, income and poverty, and household composition.