Table 4. Summary ORs and 95%CI of the association between polymorphisms in the TGF β1 genes (−509C/T and +869T/C(L10P)(L10P)) and DR risk.

Gene	Allele contras		Additive model		Recessive model		Dominant model
	OR(95%CI)	P	OR(95%CI)	P	OR(95%CI)	P	OR(95%CI)	P
+869T/C(L10P)	1.34(1.03–1/73)	0.03	1.55(0.93–2.60)	0.1	1.70(1.13–2.56)	0.01	1.19(0.78–1.83)	0.42
−509C/T	1.18(0.96–1.45)	0.11	1.23(0.76–1.99)	0.4	1.26(0.97–1.63)	0.09	1.13(0.72–1.79)	0.6

Abbreviations: DR: diabetic retinopathy; ORs: odds ratios; CI: confidence intervals.