Table 7. Adjusted ORs and 95% CI for an Increase in Nedical Use by Period, after Adjusting for Age, Sex, Income, Smoking, Drinking, and Exercise Variables (without Underlying Diseases).

		3 days	p value	1 week	p value	1 month	p value	3 months	p value	1 year	p value
Region			<0.001*		<0.001*		0.050*		<0.001*		<0.001*
	Yeongseo	Reference		Reference		Reference		Reference		Reference
	Yeongdong	1.045 (1.020, 1.071)		1.046 (1.028, 1.065)		0.988 (0.976, 1.000)		1.108 (1.096, 1.120)		1.079 (1.069, 1.090)
Age*		0.997 (0.996, 0.998)	<0.001*	0.995 (0.995, 0.996)	<0.001*	0.990 (0.990, 0.991)	<0.001*	0.993 (0.993, 0.993)	<0.001*	1.002 (1.002, 1.002)	<0.001*
Sex			0.768		0.376		0.209		<0.001*		<0.001*
	Male	Reference		Reference		Reference		Reference		Reference
	Female	1.004 (0.979, 1.029)		0.992 (0.974, 1.010)		1.008 (0.995, 1.021)		1.049 (1.037, 1.061)		1.021 (1.011, 1.031)
Income		1.000 (1.000, 1.000)	<0.001*	1.000 (1.000, 1.000)	0.192	1.000 (1.000, 1.000)	0.002*	1.000 (1.000, 1.000)	0.068	1.000 (1.000, 1.000)	<0.001*
Smoking			<0.001*		<0.001*		<0.001*		<0.001*		<0.001*
	No	Reference		Reference		Reference		Reference		Reference
	Yes	0.867 (0.836, 0.898)		0.948 (0.925, 0.973)		1.045 (1.027, 1.063)		1.047 (1.032, 1.062)		1.101 (1.087, 1.115)
Alcohol			0.044*		<0.001*		<0.001*		<0.001*		<0.001*
	No	Reference		Reference		Reference		Reference		Reference
	Yes	0.971 (0.943, 0.999)		1.038 (1.016, 1.059)		0.938 (0.925, 0.951)		0.957 (0.945, 0.968)		1.024 (1.014, 1.035)
Exercise			<0.001*		<0.001*		0.002*		<0.001*		<0.001*
	No	Reference		Reference		Reference		Reference		Reference
	Yes	0.944 (0.923, 0.966)		0.948 (0.932, 0.964)		1.018 (1.006, 1.030)		1.023 (1.013, 1.034)		1.038 (1.029, 1.048)

OR, odds ratio; CI, confidence interval.

^*Age is adjusted as a continuous variable.