. Author manuscript; available in PMC: 2016 Jan 31.

Published in final edited form as: Community Dent Oral Epidemiol. 2014 Dec 3;43(1):24–32. doi: 10.1111/cdoe.12135

Table 4.

Odds ratio and 95% confidence interval for prevalence of dft and DMFT in Pennsylvania

Predictor	Odds ratio (95% CI)	p-value
	dft
Appalachian counties (vs. Non-Appalachian counties)	1.37 (1.07–1.76)	0.015
Age, years (per 1 year increase)	1.08 (1.01–1.15)	0.025

	DMFT
Appalachian counties (vs. Non-Appalachian counties)	1.32 (1.06–1.64)	0.012
Age, years (per 1 year increase)^a	2.03 (1.67–2.47)	<0.001

Note.

Risk estimate was calculated using age and age² risk estimates (OR=2.07 95% CI=1.69–2.54 for age; OR=0.98 95% CI=0.97–0.99 for age²).