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Table 1 Characteristics of included studies in the meta-analysis (rs217727 C>T)

From: Association between lncRNA H19 rs217727 polymorphism and the risk of cancer: an updated meta-analysis

Author

Year

Country

Ethnicity

Sample size (case/control)

Source of control

Cancer site and type

Genotype distribution

Genotyping method

P for HWE

Case

Control

CC

CT

TT

CC

CT

TT

Jin [10]

2016

China

Asian

246/284

PB

cervical cancer

117

103

26

169

99

16

MassArray

0.74

Li [9]

2016

China

Asian

1147/1203

PB

colorectal cancer

480

514

153

456

570

177

TaqMan

0.959

Xia [11]

2016

China

Asian

464/467

PB

breast cancer

160

156

148

139

212

116

CRS-RFLP

0.052

Hua [17]

2016

China

Asian

1046/1394

HB

bladder cancer

431

467

148

573

665

156

TaqMan

0.074

Yang [8]

2015

China

Asian

500/500

HB

gastric cancer

160

252

88

193

244

63

TaqMan

0.296

Verhaegh [16]

2008

Netherlands

Caucasian

177/204

PB

bladder cancer

114

59

4

115

80

9

PCR-RFLP

0.288

Hu [22]

2017

China

Asian

416/416

HB

pancreatic cancer

133

200

83

128

196

92

TaqMan

0.302

Guo [23]

2017

China

Asian

362/740

PB

oral squamous cell carcinoma

101

181

80

255

348

137

BeadChip

0.342

Lin [12]

2017

China

Asian

1005/1020

HB

breast cancer

403

471

131

465

450

105

SNPscan

0.801

He [21]

2017

China

Asian

193/383

HB

osteosarcoma

79

102

12

195

165

23

TaqMan

0.121

Hassanzarei [13]

2017

Iranian

Asian

230/240

PB

breast cancer

71

132

27

125

113

2

PCR-RFLP

0

Li [18]

2018

China

Asian

200/200

HB

bladder cancer

51

140

9

84

90

26

TaqMan

0.806

Yuan [24]

2018

China

Asian

431/984

PB

oral squamous cell carcinoma

186

194

51

488

423

73

MassArray

0.151

Cui [14]

2018

China

Asian

1488/1675

PB

breast cancer

611

692

185

685

773

217

TaqMan

0.963

Li [19]

2018

China

Asian

555/618

HB

lung cancer

210

250

95

246

305

67

TaqMan

0.053

Abdollahzadeh [15]

2018

Iranian

Asian

150/100

HB

breast cancer

116

29

5

86

14

0

PCR-RFLP

0.452

Yin [20]

2018

China

Asian

556/395

HB

lung cancer

204

264

88

165

172

58

TaqMan

0.232