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Table 1 The characteristics of included studies in this meta-analysis

From: GST null polymorphisms may affect the risk of coronary artery disease: evidence from a meta-analysis

First author, year

Country

Ethnicity

Type of disease

Sample size

Case/Control

Null genotype [n(%)]

NOS score

Cases Controls

GSTM1 null

 Abu-Amero 2006

Saudi Arabia

Mixed

Coronary artery disease (CAD)

1054/762

655 (62.1%)

117 (15.3%)

7

 Bazo 2011

Brazil

Mixed

Coronary artery disease (CAD)

297/96

160 (53.8%)

40 (41.7%)

7

 Bhat 2016

India

Mixed

Coronary artery disease (CAD)

200/200

62 (31.0%)

36 (18.0%)

8

 Bhatti 2018

India

Mixed

Coronary artery disease (CAD)

562/564

217 (38.6%)

127 (22.5%)

7

 Cora 2013

Turkey

Caucasian

Myocardial infarction (MI)

324/296

182 (56.1%)

143 (48.3%)

8

 Cornelis 2007

Canada

Caucasian

Myocardial infarction (MI)

2042/2042

980 (48.0%)

1041 (51.0%)

7

 Evans 1996

Saudi Arabia

Mixed

Coronary artery disease (CAD)

90/884

57 (63.3%)

484 (54.8%)

7

 Girisha 2004

India

Mixed

Coronary artery disease (CAD)

197/198

46 (23.4%)

41 (20.7%)

7

 Hayek 2006

Israel

Mixed

Coronary artery disease (CAD)

193/2399

88 (45.6%)

1142 (47.6%)

8

 Kadıoğlu 2016

Turkey

Caucasian

Coronary artery disease (CAD)

29/30

17 (58.6%)

14 (46.7%)

7

 Kariž 2012

Slovenia

Caucasian

Myocardial infarction (MI)

206/257

142 (69.0%)

166 (64.6%)

7

 Kim 2008

Korea

East Asian

Coronary artery disease (CAD)

356/336

198 (55.6%)

191 (56.8%)

7

 Li 2000

USA

Mixed

Coronary artery disease (CAD)

400/790

178 (44.5%)

354 (44.8%)

7

 Macie 2009

Brazil

Mixed

Coronary artery disease (CAD)

869/1573

557 (64.1%)

789 (50.2%)

7

 Manfredi 2007

Italy

Caucasian

Coronary artery disease (CAD)

169/53

99 (58.6%)

24 (45.3%)

7

 Manfredi 2009

Italy

Caucasian

Coronary artery disease (CAD)

184/47

108 (58.7%)

18 (38.3%)

7

 Martin 2009

USA

Mixed

Coronary artery disease (CAD)

67/63

41 (61.2%)

19 (30.2%)

7

 Masetti 2003

Italy

Caucasian

Coronary artery disease (CAD)

308/122

163 (52.9%)

66 (54.1%)

8

 Mir 2016

India

Mixed

Coronary artery disease (CAD)

100/100

42 (42.0%)

26 (26.0%)

8

 Nomani 2011

Iran

Mixed

Coronary artery disease (CAD)

209/108

100 (47.8%)

57 (52.8%)

8

 Norskov 2011

Denmark

Caucasian

Coronary artery disease (CAD)

4930/21684

2052 (41.6%)

11,362 (52.4%)

7

 Olshan 2003

USA

Mixed

Coronary artery disease (CAD)

526/868

252 (47.9%)

352 (40.6%)

8

 Pašalić 2017

Croatia

Caucasian

Coronary artery disease (CAD)

71/174

29 (40.8%)

69 (39.7%)

7

 Phulukdaree 2012

India

Mixed

Coronary artery disease (CAD)

102/100

37 (36.3%)

18 (18.0%)

7

 Pourkeramati 2020

Iran

Mixed

Coronary artery disease (CAD)

244/281

128 (52.5%)

138 (49.1%)

8

 Ramprasath 2011

India

Mixed

Coronary artery disease (CAD)

290/270

128 (44.1%)

56 (20.7%)

7

 Salama 2002

USA

Mixed

Coronary artery disease (CAD)

130/90

45 (34.6%)

33 (36.7%)

7

 Singh 2011

India

Mixed

Myocardial infarction (MI)

230/300

56 (24.3%)

65 (21.7%)

8

 Tamer 2004

Turkey

Caucasian

Coronary artery disease (CAD)

148/247

67 (45.3%)

103 (41.7%)

7

 Tang 2009

China

East Asian

Coronary artery disease (CAD)

277/277

89 (32,.1%)

59 (21.3%)

7

 Taspinar 2012

Turkey

Caucasian

Coronary artery disease (CAD)

122/142

51 (41.8%)

66 (46.5%)

7

 Wang 2002

Australia

Caucasian

Coronary artery disease (CAD)

612/256

343 (56.0%)

153 (59.8%)

7

 Wang 2008

China

East Asian

Coronary artery disease (CAD)

277/277

89 (32.1%)

59 (21.3%)

8

 Wilson 2000

UK

Caucasian

Myocardial infarction (MI)

356/187

191 (53.7%)

107 (57.2%)

8

 Wilson 2003

UK

Mixed

Coronary artery disease (CAD)

170/203

70 (41.2%)

107 (52.7%)

7

 Yeh 2013

Taiwan

East Asian

Coronary artery disease (CAD)

458/209

253 (55.2%)

121 (57.9%)

8

 Zhang 2011

China

East Asian

Coronary artery disease (CAD)

255/145

120 (47.1%)

46 (31.7%)

7

GSTP1 null

 Bhat 2016

India

Mixed

Coronary artery disease (CAD)

200/200

132 (66.0%)

104 (52.0%)

8

 Bhatti 2018

India

Mixed

Coronary artery disease (CAD)

560/545

366 (65.4%)

307 (56.3%)

7

 Cornelis 2007

Canada

Caucasian

Myocardial infarction (MI)

2042/2042

817 (40.0%)

817 (40.0%)

7

 Kariž 2012

Slovenia

Caucasian

Myocardial infarction (MI)

206/257

135 (65.5%)

140 (54.5%)

7

 Kovacs 2014

Hungary

Caucasian

Myocardial infarction (MI)

54/78

27 (50.0%)

26 (33.3%)

7

 Nomani 2011

Iran

Mixed

Coronary artery disease (CAD)

209/108

118 (56.4%)

60 (55.5%)

8

 Phulukdaree 2012

India

Mixed

Coronary artery disease (CAD)

102/100

36 (35.3%)

52 (52.0%)

7

 Pourkeramati 2020

Iran

Mixed

Coronary artery disease (CAD)

244/281

64 (26.2%)

56 (19.9%)

8

 Ramprasath 2011

India

Mixed

Coronary artery disease (CAD)

290/270

196 (67.6%)

152 (56.3%)

7

 Singh 2011

India

Mixed

Myocardial infarction (MI)

230/300

90 (39.1%)

117 (39.0%)

8

 Yeh 2013

Taiwan

East Asian

Coronary artery disease (CAD)

458/209

125 (27.3%)

59 (28.2%)

8

GSTT1 null

 Abu-Amero 2006

Saudi Arabia

Mixed

Coronary artery disease (CAD)

1054/762

463 (43.9%)

66 (8.7%)

7

 Bazo 2011

Brazil

Mixed

Coronary artery disease (CAD)

297/100

69 (23.2%)

19 (19.0%)

7

 Bhat 2016

India

Mixed

Coronary artery disease (CAD)

200/200

12 (6.0%)

25 (12.5%)

8

 Bhatti 2018

India

Mixed

Coronary artery disease (CAD)

562/564

86 (15.3%)

129 (22.9%)

7

 Cora 2013

Turkey

Caucasian

Myocardial infarction (MI)

324/296

106 (32.7%)

63 (21.3%)

8

 Cornelis 2007

Canada

Caucasian

Myocardial infarction (MI)

2042/2042

388 (19.0%)

408 (20.0%)

7

 Decharatchakul 2020

Thailand

East Asian

Coronary artery disease (CAD)

279/735

115 (41.9%)

242 (32.9%)

8

 García 2018

Mexico

Mixed

Coronary artery disease (CAD)

79/101

15 (19.0%)

8 (7.9%)

7

 Girisha 2004

India

Mixed

Coronary artery disease (CAD)

197/198

15 (7.6%)

36 (18.2%)

7

 Hayek 2006

Israel

Mixed

Coronary artery disease (CAD)

193/2399

30 (15.5%)

392 (16.3%)

8

 Kadıoğlu 2016

Turkey

Caucasian

Coronary artery disease (CAD)

29/30

6 (20.7%)

5 (16.7%)

7

 Kariž 2012

Slovenia

Caucasian

Myocardial infarction (MI)

206/257

77 (37.4%)

108 (42.0%)

7

 Kim 2008

Korea

East Asian

Coronary artery disease (CAD)

356/336

196 (55.0%)

187 (55.7%)

7

 Li 2000

USA

Mixed

Coronary artery disease (CAD)

400/890

74 (18.5%)

166 (18.7%)

7

 Lakshmi 2012

India

Mixed

Coronary artery disease (CAD)

352/282

81 (23.0%)

39 (13.8%)

7

 Levinsson 2014

Sweden

Caucasian

Coronary artery disease (CAD)

112/1221

11 (9.8%)

168 (13.8)

7

 Macie 2009

Brazil

Mixed

Coronary artery disease (CAD)

869/1573

209 (24.1%)

337 (21.4%)

7

 Manfredi 2007

Italy

Caucasian

Coronary artery disease (CAD)

169/53

95 (56.2%)

13 (24.5%)

7

 Manfredi 2009

Italy

Caucasian

Coronary artery disease (CAD)

184/47

84 (45.7%)

13 (27.7%)

7

 Martin 2009

USA

Mixed

Coronary artery disease (CAD)

67/63

12 (17.9%)

12 (19.7%)

7

 Masetti 2003

Italy

Caucasian

Coronary artery disease (CAD)

308/122

117 (38.0%)

40 (32.8%)

8

 Mir 2016

India

Mixed

Coronary artery disease (CAD)

100/100

23 (23.0%)

16 (16.0%)

8

 Nomani 2011

Iran

Mixed

Coronary artery disease (CAD)

209/108

16 (7.7%)

17 (15.7%)

8

 Norskov 2011

Denmark

Caucasian

Coronary artery disease (CAD)

4930/21684

740 (15.0%)

3161 (14.6%)

7

 Olshan 2003

USA

Mixed

Coronary artery disease (CAD)

526/868

75 (14.3%)

165 (19.0%)

8

 Palmer 2003

UK

Caucasian

Coronary artery disease (CAD)

51/57

40 (78.4%)

35 (61.4%)

7

 Pašalić 2017

Croatia

Caucasian

Coronary artery disease (CAD)

68/177

17 (25.0%)

54 (30.5%)

7

 Pourkeramati 2020

Iran

Mixed

Coronary artery disease (CAD)

244/281

129 (52.9%)

143 (50.8%)

8

 Ramprasath 2011

India

Mixed

Coronary artery disease (CAD)

290/492

136 (46.9%)

118 (24.0%)

7

 Salama 2002

USA

Mixed

Coronary artery disease (CAD)

130/90

32 (26.7%)

14 (15.6%)

7

 Singh 2011

India

Mixed

Myocardial infarction (MI)

230/300

23 (10.0%)

61 (20.3%)

8

 Tamer 2004

Turkey

Caucasian

Coronary artery disease (CAD)

148/247

48 (32.4%)

70 (28.3%)

7

 Tang 2009

China

East Asian

Coronary artery disease (CAD)

277/277

77 (27.8%)

53 (19.1%)

7

 Taspinar 2012

Turkey

Caucasian

Coronary artery disease (CAD)

122/142

28 (23.0%)

25 (17.6%)

7

 Wang 2008

China

East Asian

Coronary artery disease (CAD)

277/277

77 (27.8%)

53 (19.1%)

8

 Wilson 2000

UK

Caucasian

Myocardial infarction (MI)

356/187

90 (25.3%)

36 (19.3%)

8

 Wilson 2003

UK

Mixed

Coronary artery disease (CAD)

170/203

34 (20.0%)

44 (21.7%)

7

 Yeh 2013

Taiwan

East Asian

Coronary artery disease (CAD)

458/209

276 (60.3%)

110 (52.6%)

8

 Zhang 2011

China

East Asian

Coronary artery disease (CAD)

255/145

141 (55.3%)

60 (41.4%)

7

  1. Abbreviations: HWE Hardy-Weinberg equilibrium, NOS Newcastle-Ottawa scale, NA Not available