Table 3.

Multivariate logistic regression analysis of influencing factors of sleep quality in older adults.

Variables	β	S. E	Z	P	OR (95%CI)
Age	0.026	0.003	9.610	<0.001	1.026 (1.021 ~ 1.032)
Gender (with male as the reference)
Female	0.380	0.040	9.606	<0.001	1.463 (1.354 ~ 1.581)
Educational Level (with Below Junior High School and Junior High School as the reference)
Above Junior High School	−0.294	0.062	−4.723	<0.001	0.745 (0.660 ~ 0.842)
Type of residence (with urban as the reference)
Rural	−0.335	0.040	−8.453	<0.001	0.715 (0.662 ~ 0.773)
Living pattern (with living with family members as the reference)
Living alone	0.195	0.082	2.387	0.017	1.216 (1.036 ~ 1.428)
Living in a nursing home	−1.305	0.205	−6.349	<0.001	0.271 (0.181 ~ 0.406)
Average monthly Per Capita family income (with ≥2000 Yuan as the reference)
<2000 Yuan	0.236	0.039	5.993	<0.001	1.266 (1.172 ~ 1.368)
Alcohol consumption status (with non-drinker as the reference)
Drinker	−0.340	0.063	−5.374	<0.001	0.712 (0.629 ~ 0.806)
Smoking status (with non-smoker as the reference)
Smoker	−0.158	0.053	−2.972	0.003	0.854 (0.769 ~ 0.948)
Participation in social activities (with participation in social activities as the reference)
No	0.337	0.040	8.416	<0.001	1.401 (1.295 ~ 1.516)
Annual physical examination (with annual physical examination as the reference)
No	−0.290	0.040	−7.332	<0.001	0.748 (0.692 ~ 0.809)
Physical exercise (with physical exercise as the reference)
No	0.169	0.045	3.748	<0.001	1.184 (1.084 ~ 1.294)
Social support status (with sufficient social support as the reference)
Lack	0.332	0.060	5.499	<0.001	1.394 (1.238 ~ 1.569)
Nutritional status (with good nutritional status as the reference)
At risk of malnutrition	0.032	0.043	0.756	0.450	1.033 (0.950 ~ 1.123)
Malnutrition	−0.155	0.073	−2.142	0.032	0.856 (0.743 ~ 0.987)
Degree of frailty (with no frailty as the reference)
Pre-frailty	1.243	0.047	26.669	<0.001	3.464 (3.162 ~ 3.796)
Frailty state	1.743	0.055	31.472	<0.001	5.715 (5.127 ~ 6.371)