TABLE 3.

Binary logistic regression analysis of related factors of depressive symptoms.

Variables		B	SE	Wald	P-value	OR	95% CI
Gender	Male
	Female	0.317	0.048	43.539	4.155E-11	1.373	1.250–1.509
Location of residential address	Main city zone			13.763	0.008
	Combination-zone (urban-rural)	0.023	0.124	0.036	0.850	1.024	0.803–1.306
	Town/city-center	0.053	0.122	0.190	0.663	1.055	0.830–1.341
	ZhenXiang area	0.078	0.133	0.348	0.555	1.081	0.834–1.403
	Village	–0.168	0.068	6.019	0.014	0.845	0.739–0.967
Changes in health status following last interview	Better			9.837	0.007
	About the same	0.036	0.079	0.212	0.645	1.037	0.889–1.210
	Worse	0.189	0.083	5.174	0.023	1.208	1.027–1.422
Physical disabilities	No
	Yes	0.205	0.086	5.656	0.017	1.228	1.037–1.454
Chronic pain	Yes
	No	–0.623	0.075	69.833	6.453E-17	0.536	0.464–0.621
Childhood health status	Excellent			21.085	3.046E-04
	Very good	–0.162	0.082	3.921	0.048	0.851	0.725–0.998
	Good	–0.345	0.089	14.878	1.147E-04	0.709	0.595–0.844
	Fair	–0.290	0.087	11.052	0.001	0.748	0.631–0.888
	Poor	–0.088	0.125	0.492	0.483	0.916	0.717–1.171
ADL	NFI group			28.206	7.502E-07
	MFI group	0.261	0.057	21.228	4.077E-06	1.298	1.162–1.451
	FI group	0.410	0.111	13.580	2.286E-04	1.507	1.212–1.875
Social activity	Yes
	No	0.373	0.047	61.846	3.715E-15	1.452	1.323–1.593
Age group × Chronic pain		–0.405	0.052	60.268	8.277E-15	0.667	0.602–0.739
Constant		2.249	0.138	265.396	1.144E-59	9.474