Table 1 Characteristics of the studies included in the meta-analysis.

First author	Year	Ethnicity	Tumor type	case	control	Genotyping medthod	Source of control	No. of SNP	cancer risk
Hou	2015	Asian	GC	326	326	MassARRAY	Population	1, 2	No.1 yes
Nemati	2015	Caucasian	CRC	202	203	PCR-RFLP	Hospital	1^*, 2	yes
Gao	2015	Asian	GC	572	572	PCR–RFLP	Hospital	1, 2^*	No.2 yes
Lv	2015	Asian	CC	264	264	PCR–RFLP	Population	1, 2^*	No.1 yes
Lee	2015	Asian	PTC	94	260	TaqMan	Population	1	no risk
Xi	2015	Asian	HCC	155	171	PCR–RFLP	Hospital	1, 2	no risk
Wang	2014	Asian	GC	462	462	PCR–RFLP	Population	1, 2	No.1 yes
Wróbel	2014	Caucasian	AML	62	125	PCR–RFLP	Population	1, 2	No.2 yes
Omrane	2014	Caucasian	CRC	102	139	TaqMan	Population	1	yes
Omrane	2014	Caucasian	CRC	102	139	TaqMan	Population	2	yes
Yin	2014	Asian	EC	380	380	SNPscan	Hospital	1	yes
Li	2014	Asian	HCC	395	174	PCR–RFLP	Hospital	1	yes
Kaabachi	2014	Caucasian	LC	239	258	PCR–RFLP	Population	1, 2	No.2 yes
Zhu	2014	Asian	GC	311	611	MassARRAY	Hospital	1, 2^*	No.1 yes
Zhang	2014	Asian	GC	260	512	MassARRAY	Hospital	1^, 2^	yes
Bi	2014	Asian	GC	99	150	PCR-RFLP	Hospital	1, 2	no risk
Rafiei	2013	Caucasian	GC	161	171	PCR–RFLP	Hospital	1	yes
Zhou	2013	Asian	BLC	301	446	TaqMan	Hospital	1, 2	yes
Arisawa	2012	Asian	GC	337	587	PCR-SSCP	Hospital	1	yes
Quan	2012	Asian	CC	311	463	TaqMan	Hospital	1, 2	No.1 yes
Wang	2012	Asian	BC	491	502	SNaPshot	Population	1, 2	No.1 yes
Ruan	2012	Asian	OC	92	38	PCR-RFLP	Hospital	1^, 2^	no risk
Chen	2010	Asian	GC	1042	1090	TaqMan	Population	1	no risk
Wu	2010	Asian	GC	1010	800	PCR–RFLP	Population	1, 2	No.2 yes
Luo	2010	Asian	GC	24	50	PCR-RFLP	Hospital	1^*, 2	No.1 yes
Shibata	2009	Asian	GC	287	524	PCR–SSCP	Hospital	1^*, 2	No.1 yes

^*The P-values of the Hardy-Weinberg equilibrium test of control group less than 0.05.
CRC: colorectal cancer; GC: gastric cancer; CC: cervical cancer; PTC: papillary thyroid cancer; HCC: hepatocellular carcinoma; LC: lung cancer; AML: acute myeloid leukemia; EC: esophageal cancer; BLC: bladder cancer; BC: breast cancer; OC: ovarian cancer; NA: not available; PCR-RFLP: polymerase chain reaction restriction fragment length polymorphism; SSCP: single strand conformation polymorphism; SNP: single-nucleotide polymorphisms; No. of SNP: No.1: rs2275913, No.2: rs763780.

Search