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Table 2 Characteristics of the studies evaluating effects of the GSTT1-null genotype of on bladder carcinogen risk

From: Association of Glutathione S-transferase gene polymorphism with bladder Cancer susceptibility

Author, Year

Country

Ethnicity

Source of controls

Quality score

Case

Control

–

+

total

–

+

total

Brockmoller 1996

Germany

Caucasian

Hospital-based

8

66

308

374

78

295

373

Kempkes 1996

Germany

Caucasian

Population-based

7

20

93

113

31

139

170

Abdel-Rahman 1998

Egypt

African

Hospital-based

8

17

20

37

5

29

34

Katoh 1998

Japan

Caucasian

Hospital-based

9

46

66

112

59

53

112

Kim 1998

Korea

Asian

Hospital-based

7

18

49

67

29

38

67

Lee 1999

Korea

Asian

Hospital-based

7

93

65

158

66

65

131

Salagovic 1999

Slovakia

Caucasian

Hospital-based

6

21

55

76

42

206

248

Georgiou 2000

Greece

Caucasian

Hospital-based

6

5

84

89

16

131

147

Peluso 2000

Italy

Caucasian

Hospital-based

5

14

108

122

6

48

54

Kim 2000

Korea

Asian

Hospital-based

6

47

65

112

101

119

220

Steinhoff 2000

Germany

Caucasian

Hospital-based

7

20

115

135

17

110

127

Schnakenberg 2000

Germany

Asian

Hospital-based

6

28

129

157

48

175

223

Toruner 2001

Turkey

Asian

Hospital-based

8

24

97

121

21

100

121

Giannakopoulos 2002

Greece

Caucasian

Hospital-based

6

5

84

89

16

131

147

Lee 2002

Korea

Asian

Hospital-based

8

135

97

232

85

80

165

Ma 2002

China

Asian

Population-based

8

29

32

61

88

94

182

Kim 2002

Korea

Asian

Population-based

8

91

125

216

228

221

449

Gago-Dominguez 2003

USA

Mix

Population-based

8

50

146

196

34

142

176

Jong 2003

Korea

Asian

Hospital-based

9

68

58

126

113

91

204

Chen 2004

China

Asian

Population-based

8

32

30

62

51

30

81

Moore 2004

USA

Mix

Population-based

8

17

89

106

12

97

109

Hung 2004

France

Caucasian

Hospital-based

7

43

158

201

33

181

214

Srivastava 2004

India

Asian

Hospital-based

7

28

78

106

29

153

182

Sanyal 2004

Sweden

Caucasian

Population-based

8

66

204

270

12

110

122

Broberg 2005

Sweden

Caucasian

Population-based

9

7

54

61

22

132

154

Garcia-Closas 2005

Spain

Caucasian

Hospital-based

9

230

899

1129

248

873

1121

Saad 2005

UK

Caucasian

Population-based

8

26

46

72

14

67

81

Karagas 2005

USA

Mix

Population-based

9

53

83

136

301

458

759

Golka 2005

Dortmund

Caucasian

Hospital-based

8

30

106

136

38

125

163

Kim 2005

Korea

Asian

Hospital-based

7

71

82

153

89

64

153

Srivastava 2005

India

Asian

Population-based

10

28

78

106

79

291

370

Shao 2005

China

Asian

Population-based

7

204

201

405

195

194

389

Sobti 2005

India

Asian

Population-based

9

30

70

100

11

65

76

McGrath 2006

USA

Mix

Population-based

11

35

156

191

148

776

924

Ouerhani 2006

Tunisia

African

Population-based

6

26

36

62

35

44

79

Kogevinas 2006

Spain

Caucasian

Hospital-based

8

24

75

99

17

74

91

Cengiz 2007

Turkey

Caucasian

Hospital-based

6

18

33

51

11

42

53

Kellen 2007

Belgium

Caucasian

Population-based

8

30

164

194

61

319

380

Zhao 2007

USA

Caucasian

Hospital-based

8

103

520

623

115

519

634

Covolo 2008

Italy

Caucasian

Hospital-based

7

42

155

197

33

178

211

Yuan 2008

USA

Mix

Population-based

11

140

518

658

124

556

680

Song 2008

China

Asian

Hospital-based

7

71

37

108

58

54

112

Altayli 2009

Turkey

Caucasian

Hospital-based

7

31

104

135

9

119

128

Grando 2009

Brazil

Mix

Population-based

7

51

49

100

37

63

100

Song 2009

China

Asian

Hospital-based

11

110

98

208

105

107

212

Cantor 2010

Spain

Caucasian

Hospital-based

9

136

542

678

160

550

710

Moore 2011

USA

Mix

Hospital-based

10

210

794

1004

237

942

1179

Rouissi 2011

Tunisia

African

Population-based

7

30

95

125

38

87

125

Goerlitz 2011

Egypt

African

Hospital-based

9

147

470

617

156

464

620

Salinas-Sánchez 2011

Spain

Caucasian

Hospital-based

5

42

148

190

25

138

163

Lesseur 2012

New Hampshire

Caucasian

Hospital-based

9

106

556

662

143

780

923

Ovsiannikov 2012

Germany

Caucasian

Hospital-based

6

33

163

196

47

188

235

Henriquez-Hernondez 2012

Spain

Caucasian

Hospital-based

8

60

30

90

40

41

81

Berber 2013

Turkey

Caucasian

Hospital-based

7

31

83

114

16

98

114

Matic 2013

Serbia

Caucasian

Hospital-based

8

56

145

201

34

88

122

Safarinejad 2013

Iran

Asian

Hospital-based

10

35

131

166

69

263

332

Kang 2013

Korea

Asian

Hospital-based

9

64

46

110

128

92

220

Reszka 2014

Poland

Caucasian

Population-based

9

30

212

242

77

288

365

Ceylan 2015

Turkey

Caucasian

Hospital-based

8

19

46

65

9

61

70

Ali 2017

Pakistan

Asian

Population-based

11

34

166

200

26

174

200

Elhawary 2017

Saudi Arabia

Asian

Hospital-based

7

6

46

52

8

96

104