From: Vascular endothelial growth factor +405G/C polymorphism as a predictor of diabetic retinopathy
+405 VEGF gene polymorphism
GG
CG
CC
P value
Macular edema
No
36
28.6
73
57.9
17
13.5
0. 430
Yes
15
23.4
56.3
13
20.3