Table 2. Results of meta-analysis for IGFBP3 A-202C/Gly32Ala polymorphism and colorectal cancer.

Genotype Comparisons	OR (95% C.I.)	P	Ph	I2
A-202C
AC vs. AA	0.99(0.88–1.11)	0.89	0.77	0%
CC vs. AA	1.06(0.92–1.22)	0.40	0.62	0%
CC+AC vs. AA	0.98(0.88–1.09)	0.71	0.89	0%
CC Vs. AC+AA	0.94(0.84–1.05)	0.28	0.63	0%
Gly32Ala
GC vs. GG	1.10(0.92–1.31)	0.32	0.13	47%
CC vs. GG	0.93(0.76–1.14)	0.49	0.13	46%
CC+GC vs. GG	1.07(0.81–1.42)	0.62	0.05	61%
CC Vs. GC+GG	0.90(0.77–1.05)	0.17	0.31	16%

P_h P value of Q test for heterogeneity.