Table 3. Summary of ORs of the -260C/T polymorphism and gastric cancer risk by H. pylori infection status and location.

Variables	na	dominant model			recessive model			CT vs. CC			TT vs. CC
		OR(95% CI)	P b	I 2	OR(95% CI)	P b	I 2	OR(95% CI)	P b	I 2	OR(95% CI)	P b	I 2
H. pylori infection
H. pylori (+)	3/2*	1.51(0.58,3.92)	0.01	76	1.28(0.95,1.73)	0.59	0	2.04(1.21,3.46)	0.38	0	2.32(1.36,3.94)	0.32	0
H. pylori (−)	3/2*	1.44(0.75,2.77)	0.51	0	1.26(0.83,1.93)	0.16	49	1.52[0. 73,3.14]	0.77	0	1.90(0.89,4.08)	0.46	0
Location
Cardia	3	0.75(0.54,1.04)	0.67	0	0.84(0.58,1.22)	0.33	11	0.77(0.54,1.10)	0.42	0	0.69(0.44,1.06)	0.68	0
Non-cardia	3	0.83(0.63,1.08)	0.33	9	0.90(0.68,1.19)	0.25	28	0.83(0.62,1.11)	0.56	0	0.80(0.57,1.13)	0.15	48

^aNumber of comparison,

^bTest for heterogeneity,

* 3 studies in the dominant model, 2 in the other models.