Table 2.

Logistic regression analysis for the association between different classes and dual sensory impairment.

Cluster	Crude	Model I	Model II	Model III
	OR (95%CI) P-value	OR (95%CI) P-value	OR (95%CI) P-value	OR (95%CI) P-value
Change in the CES-D-10 scores
Class 1	Ref	Ref	Ref	Ref
Class 2	1.54 (1.28, 1.85) <0.001	1.53 (1.28, 1.84) <0.001	1.50 (1.25, 1.80) <0.001	1.50 (1.25, 1.80) <0.001
Class 3	1.59 (1.22, 2.07) <0.001	1.57 (1.21, 2.05) <0.001	1.50 (1.15, 1.97) 0.003	1.50 (1.15, 1.97) 0.003
Class 4	1.62 (1.31, 2.02) <0.001	1.61 (1.30, 2.01) <0.001	1.55 (1.24, 1.93) <0.001	1.54 (1.24, 1.92) <0.001
Class 5	1.86 (1.34, 2.57) <0.001	1.82 (1.30, 2.53) <0.001	1.70 (1.21, 2.37) 0.002	1.68 (1.20, 2.35) 0.003
Cumulative CES-D-10 scores
Q1	Ref	Ref	Ref	Ref
Q2	1.48 (1.14, 1.91) 0.003	1.46 (1.13, 1.89) 0.004	1.42 (1.09, 1.84) 0.008	1.42 (1.09, 1.84) 0.008
Q3	1.58 (1.22, 2.05) <0.001	1.56 (1.20, 2.02) <0.001	1.51 (1.16, 1.96) 0.002	1.50 (1.16, 1.95) 0.002
Q4	2.05 (1.59, 2.64) <0.001	2.03 (1.57, 2.61) <0.001	1.93 (1.49, 2.49) <0.001	1.93 (1.50, 2.50) <0.001
Q5	1.98 (1.53, 2.55) <0.001	1.93 (1.49, 2.51) <0.001	1.81 (1.39, 2.35) <0.001	1.80 (1.38, 2.34) <0.001
Depressive symptoms
CES-D-10 ≤ 10	Ref	Ref	Ref	Ref
CES-D-10 > 10	1.31 (1.09, 1.57) 0.005	1.28 (1.06, 1.54) 0.010	1.23 (1.02, 1.49) 0.033	1.23 (1.02, 1.49) 0.033

Crude, adjusted for none. Model I, adjusted for age, gender. Model II, adjusted for age, gender, education, marital status, Hukou, smoking status, and drinking status. Model III, adjusted for factors in model II and history of hypertension, diabetes, heart disease, stroke, dyslipidemia, and lung disease. The CESD scores, measured by the 10-item Center for Epidemiologic Studies Depression Scale, varies between 0 and 30, and then it was split into quartiles. Q1 (<4), Q2 (4, 8), Q3 (8, 12), Q4 (12, 18), Q5 (>18). Defined as a score of 10 or greater on the 10-item center for epidemiologic studies depression scale.