Prevalence, Risk Factors, and Causes of Visual Impairment in an Elderly Chinese Uygur Population in Southern Xinjiang

Table 4

Univariate and multiple logistic regression analysis of risk factors associated with low vision and blindness.

Parameters	Low vision and blindness
	Univariate		Multiple
	Or (95% CI)		Or (95% CI)
Age (years)	1.106 (1.089–1.123)	≤0.001	1.095 (1.077–1.113)	≤0.001
Sex	0.736 (0.567–0.956)	0.021	0.970 (0.739–1.274)	0.827
Education
Uneducated	Reference	Reference	Reference	Reference
≤Primary school	0.478 (0.354–0.645)	≤0.001	0.674 (0.483–0.939)	0.020
Junior middle school	0.369 (0.240–0.566)	≤0.001	0.608 (0.382–0.967)	0.036
High school or higher	0.349 (0.167–0.732)	0.005	0.584 (0.265–1.284)	0.181
BMI (kg/m^2)	0.882 (0.850–0.916)	≤0.001	0.938 (0.901–0.977)	0.002
Smoking	0.756 (0.483–1.183)	0.221	0.881 (0.523–1.485)	0.635
Drinking	0.578 (0.201–1.657)	0.307	1.263 (0.401–3.979)	0.690

OR: odds ratio; CI: confidence intervals; BMI: body mass index.