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Table 1 Study characteristics of all included studies about urinary cancer

From: Association between methylenetetrahydrofolate reductase gene rs1801131 A/C polymorphism and urinary tumors’ susceptibility

First author

Year

Origin

Ethnicity

Design

Source of control

Case

Control

Case

Control

HWE in control

Genotype method

NOS

CC

CA

AA

CC

CA

AA

Bladder cancer

 Ouerhani

2007

Tunisia

African

HB

 

111

131

6

47

58

9

37

85

0.55

PCR-RFLP

6

 Rouissi

2009

Tunisia

African

HB

 

185

191

10

78

97

10

60

121

0.478

PCR-RFLP

7

 Cai

2009

China

Asian

HB

 

312

325

6

91

215

7

92

226

0.504

PCR-RFLP

7

 Izmirli

2011

Turkey

Caucasian

HB

 

47

50

3

25

19

7

29

14

0.195

PCR-RFLP

6

 Safarinejad

2011

Iran

Caucasian

HB

 

158

316

25

85

48

23

115

178

0.46

PCR-RFLP

8

 Lin

2004

USA

African

PB

 

21

21

0

7

14

0

8

13

0.281

PCR-RFLP

9

 Wang

2009

China

Asian

PB

 

239

250

3

67

169

4

75

171

0.719

PCR-RFLP

9

 Beebe-Dimmer

2012

USA

Caucasian

PB

 

218

272

14

109

95

34

111

127

0.211

Taqman

8

 Karagas

2005

USA

Caucasian

PB

 

350

542

31

146

173

55

220

267

0.333

PCR-RFLP

9

 Lin

2004

USA

Caucasian

PB

 

410

409

30

188

192

36

184

189

0.35

PCR-RFLP

9

 Moore

2007

Spain

Caucasian

PB

 

1068

1078

74

457

537

92

429

557

0.467

TaqMan

7

 Sanyal

2004

Germany

Caucasian

PB

 

311

245

33

133

145

24

111

110

0.6

PCR-RFLP

7

 Lin

2004

USA

Mixed

PB

 

17

17

0

4

13

1

5

11

0.678

PCR-RFLP

9

 Moore

2004

USA

Mixed

PB

 

106

108

9

45

52

8

45

55

0.771

TaqMan

8

Prostate cancer

 Cicek

2004

USA

Mixed

PB

Healthy

439

478

39

205

195

44

201

233

0.945

PCR-RFLP

8

 Collin

2009

UK

Caucasian

PB

Healthy

1592

3035

144

673

775

289

1339

1407

0.249

PCR-RFLP

9

 Cai

2010

China

Asian

HB

BPH

217

220

4

63

150

5

71

144

0.27

PCR-RFLP

6

 Safarinejad

2010

Iran

Caucasian

HB

Healthy

174

348

14

70

90

40

150

158

0.628

PCR-RFLP

7

 Singal

2004

USA

Caucasian

HB

BPH

81

42

9

43

29

7

17

18

0.396

PCR-RFLP

8

 Wu

2010

Taiwan

Asian

HB

Healthy

218

436

10

70

138

14

135

287

0.697

PCR-RFLP

7

 Marchal

2008

Spain

Caucasian

HB

Healthy

177

209

17

62

98

22

79

108

0.193

TaqMan

7

 Stevens

2008

USA

Caucasian

PB

Healthy

1104

1109

105

518

481

125

493

491

0.94

TaqMan

7

 Guelpen

2006

Sweden

Caucasian

PB

Healthy

222

434

27

108

87

55

203

176

0.765

TaqMan

7

 Muslumanoglu

2009

Turkey

Caucasian

HB

BPH

91

166

44

16

31

44

45

77

< 0.05

PCR-RFLP

6

 López-Cortés

2013

USA

Caucasian

PB

Healthy

104

110

2

2

100

1

1

108

< 0.05

PCR-RFLP

9

Renal cell carcinoma

 Ajaz

2012

Pakistan

Asian

HB

 

168

172

19

106

43

8

105

59

< 0.05

PCR-RFLP

6

 Safarinejad

2012

Iran

Caucasian

PB

 

152

304

28

88

36

35

131

138

0.645

PCR-RFLP

9

 Moore

2008

France

Caucasian

HB

 

818

1087

85

357

376

113

483

491

0.718

PCR-RFLP

7

  1. HB hospital-based, PB population-based, PCR-RFLP polymerase chain reaction and restrictive fragment length polymorphism, HWE Hardy–Weinberg equilibrium, NOS Newcastle-Ottawa Score