Table 2.

Logistic regression model on pain and Cognitive Frailty at 2011.

Pain	Model
	Model1		Model2		Model3		Model4
	OR (95% CI)	p-value	OR(95% CI)	P-value	OR(95% CI)	P-value	OR(95% CI)	P-value
Non-pain	1(Ref)		1(Ref)		1(Ref)		1(Ref)
Mild	2.92 (2.23 ~ 3.82)	<0.001	2.69 (2.05 ~ 3.53)	<0.001	2.94 (2.17 ~ 3.97)	<0.001	2.53 (1.81 ~ 3.53)	<0.001
Moderate	4.85 (3.94 ~ 5.96)	<0.001	4.24 (3.44 ~ 5.24)	<0.001	4.16 (3.25 ~ 5.33)	<0.001	2.78 (2.1 ~ 3.68)	<0.001
Severe	9.03 (7.53 ~ 10.83)	<0.001	8.03 (6.67 ~ 9.67)	<0.001	8.08 (6.51 ~ 10.02)	<0.001	4.68 (3.63 ~ 6.03)	<0.001

Model 1: No adjustment; Model 2: Adjusted for age, gender, and marital status; Model 3: Model 2 + BMI, waist, education, ever/current smoke, ever/current alcohol, insurance; Model 4: Model 3 + Nighttime sleep duration, poor sleep quality, life-satisfy and CESD score.