Molecular Vision: Hang, Mol Vis 2014; 20:1137-1145. Table 2

Table 2. Univariate and multivariate logistic regression analysis of risk factors for DR.

Variate	Univariate logistic regression analysis			Variate in the equation	Multivariate logistic forward regression analysis
Variate	OR	95%CI	P	Variate in the equation	OR	95%CI	P
Age	0.87	0.76–0.98	0.023*	Age	0.80	0.66–0.97	0.023*
IL-2	0.45	0.21–0.96	0.038*	IL-2	0.59	0.22–1.54	0.281
IL-3	3.25	1.05–10.06	0.041*	IL-3	2.01	0.39–10.50	0.406
TNF- α	1.30	1.01–1.67	0.039*	TNF- α	1.40	0.93–2.10	0.106
TNF-β	0.08	0.01–0.62	0.016*	TNF-β	0.09	0.01–1.30	0.077

OR=odds ratios, CI=confidence intervals. *P value was significant (p<0.05) We subdivided the diabetic group into two groups: NDR (n=19) and DR (n=40). Univariate analysis screened age, IL-2, IL-3, TNF-α, and TNF-β as related factors to DR; OR values were 0.87 (p=0.023), 0.45 (p=0.038), 3.25 (p=0.041), 1.30 (p=0.039), and 0.08 (p=0.016), respectively. After that, multivariate logistic forward regression analysis excluded other factors except age (OR=0.80,p=0.023).