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Table 1 Characteristics of studies included in the meta-analysis

From: MiR-146a rs2910164 G/C polymorphism and gastric cancer susceptibility: a meta-analysis

First author

Year

Location

Genotyping method

No. of cases

No. of controls

Cases

Controls

PHWEfor control

CC

CG

GG

CC

CG

GG

Okubo

2010

Japan

PCR-RFLP

552

697

236

243

73

254

322

121

0.2776

Zeng

2010

China

PCR-RFLP

304

304

89

153

62

119

132

53

0.1223

Hishida

2011

Japan

PCR-CTPP

583

1637

230

271

82

633

775

229

0.7381

Zhou F

2012

China

TaqMan MGB

1686

1895

286

822

578

393

951

551

0.6407

Zhou Y

2012

China

Locus-specific PCR

299

416

107

146

46

127

215

74

0.301

Ahn

2013

Korea

PCR-RFLP

461

447

159

231

71

164

221

62

0.3618

Dikeakos

2014

Greece

PCR-RFLP

163

480

105

45

13

307

149

24

0.2892

Kupcinskas

2014

Europe

Real Time-PCR

362

347

16

94

252

16

108

223

0.5311

Pu

2014

China

PCR-RFLP

197

513

65

96

36

143

274

96

0.0801