miRNA polymorphisms and risk of gastric cancer in Asian population

Table 4 MiR-146a single-nucleotide polymorphism ( rs2910164) in gastric cancer

First author year	Study design	Case/control	Case			Control			Risk1 (OR and 95%CI)
			CC	CG	GG	CC	CG	GG
Okubo et al[41] 2010	HB	552/697	236	243	73	254	322	121	0.73 (0.53-0.99)
Zeng et al[17] 2010	HB	304/304	89	153	62	119	132	53	1.21 (0.81-1.82)
Hishida et al[56] 2011	HB	583/540	230	271	82	215	254	71	1.08 (0.77-1.52)
Ahn et al[50] 2012	HB	461/447	159	231	71	164	221	62	1.13 (0.78-1.63)
Zhou et al[57] 2012	HB	1686/1895	286	822	578	393	951	551	1.27 (1.10-1.47)
Overall		3586/3913	1000	1720	866	1145	1880	858	1.08 (0.87-1.33)

¹OR and 95%CI were calculated under a recessive genetic model (GG vs CC + CG). HB: Hospital based.