Table 2.

Final Regression Model for a Dental Visit

Final Regression Model	Parameter Estimate	SE	p	Odd's Ratio
Intercept	−4.2212	0.15	<.0001
Individual-level variables
Health plan
Health choice	0.4926	0.04	<.0001	1.64 (1.50–1.79)
Both	0.2160	0.03	<.0001	1.24 (1.16–1.33)
Medicaid (ref)	0.00	0.00		1.00
Age*
1	−2.2655	0.02	<.0001	0.10 (0.10–0.11)
2	−1.0883	0.02	<.0001	0.34 (0.33–0.35)
3	−0.3069	0.02	<.0001	0.74 (0.71–0.76)
4 (ref)	0.00	0.00		1.00
Enrollment duration
Enrolled months (cubic)	0.00672	0.0004	<.0001	1.007 (1.006–1.008)
Race
Black	−0.1583	0.02	<.0001	0.85 (0.83–0.88)
Hispanic	−0.0914	0.03	.0003	0.91 (0.87–0.96)
Native American	0.2934	0.05	<.0001	1.34 (1.23–1.47)
Other	−0.0603	0.03	.0537	0.94 (0.89–1.001)
White (ref)	0.00	0.00		1.00
Enrollment continuity
No gap	−0.2239	0.03	<.0001	0.80 (0.73–0.85)
Gap (ref)	0.00	0.00		1.00
Prior enrollment
Health choice	−0.2023	0.05	<.0001	0.82 (0.74–0.90)
Both	−0.0437	0.07	.5319	0.96 (0.84–1.10)
Medicaid	−0.0468	0.03	.1067	0.95 (0.90–1.01)
Neither (ref)	0.00	0.00		1.00
County-level variables
Public providers/1,000 eligible children ratio
<5 providers	−0.7096	0.02	<.0001	0.49 (0.47–0.51)
5–10 providers	−0.3263	0.02	<.0001	0.72 (0.70–0.75)
≥ 10 providers (ref)	0.00	0.00		1.00
Percent of county population below the FPL
≥ 16% below FPL	−0.2395	0.03	<.0001	0.79 (0.74–0.83)
10–16% below FPL	−0.2308	0.02	<.0001	0.79 (0.76–0.83)
<10% below FPL (ref)	0.00	0.00		1.00
Percent with <high school education
≥ 20% of population	−0.0627	0.02	<.0001	0.94 (0.91–0.97)
<20% of population (ref)	0.00	0.00		1.00
Infant mortality rate
≥ 10% infant mortality rate	0.2350	0.02	<.0001	1.27 (1.23–1.31)
<10% infant mortality rate (ref)	0.00	0.00		1.00

^*Controlling for age, enrollment duration, race, gap in enrollment, prior enrollment, and county-level indicators.

FPL, federal poverty level.