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Table 1 Characteristics of studies included in meta-analysis of overall CAD

From: The association between Matrix Metallo-proteinases-9 (MMP-9) gene family polymorphisms and risk of Coronary Artery Disease (CAD): a systematic review and meta-analysis

Study author

Year

Country

Ethnicity

Study design

Type of CAD

Total cases/controls

Age

Case / Control (Mean)

Genotyping method

Quality

score

MMP-9 (C1562T)

 Pollanen et al.

2001

Finland

European

Case-control

ACS

109 / 167

33–69 / 33–69

PCR-RFLP

6

 Wang et al.

2001

Australia

Oceania

Case-control

Stable

619 / 169

57.7 ± 0.5 / NR

PCR-RFLP

7

 Cho et al.

2002

Korea

Asian

Case-control

Stable

63 / 134

NR / NR

PCR-RFLP

5

 Kim et al.

2002

Korea

Asian

Case-control

Stable

131 / 117

61.3 ± 7.9 / 59.3 ± 8.5

PCR-RFLP

6

 Jones et al.

2002

New Zealand

European

Case-control

Stable

414 / 203

71.7 ± 7.6 / 70.8 ± 8.0

PCR-RFLP

8

 Tang et al.

2005

China

Asian

Case-control

ACS

101 / 105

NR / NR

PCR-RFLP

5

 Chen et al.

2005

China

Asian

Case-control

ACS

78 / 81

NR / NR

PCR-RFLP

5

 Meng et al.

2006

China

Asian

Case-control

Stable

117 / 99

NR / NR

PCR-RFLP

5

 Nuzzo et al.

2006

Italy

European

Case-control

ACS

49 / 123

NR / NR

PCR-RFLP

5

 Chen et al.

2007

China

Asian

Case-control

Stable

150 / 70

NR / NR

PCR-RFLP

5

 Nanni et al.

2007

Italy

European

Case-control

ACS

200 / 201

47.8 ± 6.2 / 47.0 ± 5.5

PCR-RFLP

7

 Wang et al.

2007

China

Asian

Case-control

ACS

245 / 204

NR / NR

PCR-RFLP

8

 Zhang et al.

2008

China

Asian

Case-control

ACS

92 / 95

NR / NR

PCR-RFLP

5

 Koh et al.

2008

Korea

Asian

Case-control

ACS

206 / 173

61.1 ± 11.8 / 58.3 ± 11.8

PCR-RFLP

6

 Alp et al.

2009

Turkey

European

Case-control

Stable

146 / 122

59.30 ± 9.1 / 57.30 ± 9.7

PCR-RFLP

6

 Wu et al.

2009

China

Asian

Case-control

ACS

2517 / 689

NR / 60.42 ± 9.07

PCR-RFLP

8

 Gao et al.

2010

China

Asian

Case-control

Stable

96 / 78

NR / NR

PCR-RFLP

5

 Fallah et al.

2010

Iran

Asian

Case-control

Stable

145 / 157

58.49 ± 9.12 / 55.35 ± 9.43

PCR-RFLP

6

 Yong et al.

2010

China

Asian

Case-control

ACS

128 / 106

NR / NR

PCR-RFLP

5

 Ghaderian et al.

2010

Iran

Asian

Case-control

ACS

400 / 200

NR / 65.8 ± 5.9

TaqMan

8

 Zhi et al.

2010

China

Asian

Case-control

Stable

762 / 555

67.46 ± 9.61 / 69.90 ± 11.48

PCR-RFLP

8

 Wang et al.

2011

China

Asian

Case-control

ACS

384 / 451

55.6 ± 10.9 / 54.1 ± 10.3

PCR-RFLP

8

 Opstad et al.

2012

Norway

European

Case-control

Stable

996 / 204

62 / NR

TaqMan

8

 Han et al.

2012

China

Asian

Case-control

Stable

91 / 101

NR / NR

PCR-RFLP

5

 Saracini et al.

2012

Italy

European

Case-control

Stable

423 / 423

40–94 / 41–94

Nano gene electronic microchip technology

8

 Spurthi et al.

2012

India

Asian

Case-control

Stable

100 / 100

56.73 ± 12.2 / 54.55 ± 14.38

PCR-RFLP

5

 Sewelam et al.

2013

Egypt

African

Case-control

ACS

40 / 40

NR / NR

PCR-RFLP

5

 Wu et al.

2013

China

Asian

Case-control

ACS

258 / 153

63.97 ± 12.32 / 63.61 ± 11.8

PCR-RFLP

7

 Xu et al.

2013

China

Asian

Case-control

Stable

382 / 466

62 ± 12 / 62 ± 10

PCR-RFLP

8

 Rodriguez et al.

2016

Mexico

American

Case-control

ACS

236 / 285

59 / 58

PCR-RFLP

8

 Yin et al.

2016

China

Asian

Case-control

Stable

194 / 251

55.60 ± 10.42 / 56.21 ± 9.83

PCR-RFLP

7

 Beton et al.

2016

Turkey

European

Case-control

Stable

200 / 200

60.2 ± 7.4 / 58.3 ± 7.7

PCR-RFLP

7

 Daraei et al.

2016

Iran

Asian

Case-control

ACS

117 / 120

62.96 ± 12.80 / 52.55 ± 9.80

PCR-RFLP

6

 El-Aziz et al.

2016

Egypt

African

Case-control

ACS

184 / 180

57.2 ± 10.9 / 58.8 ± 8.3

PCR-RFLP

7

 Qin et al.

2016

China

Asian

case-control

Stable

261 / 261

58.75 ± 9.36 / 59.21 ± 10.10

PCR-RFLP

7

 Peksiene et al.

2017

Lithuania

European

Case-control

ACS

518 / 645

61.9 ± 11.1 / 60.6 ± 11.9

TaqMan

8

 Mahmoodi et al.

2017

Iran

Asian

case–control

Stable

100 / 100

59.4 ± 23.5 / 56.7 ± 29.5

PCR-RFLP

5

 Xu et al.

2017

China

Asian

Case-control

Stable

264 / 186

59 ± 11.67 / 58 ± 10.72

PCR-RFLP

7

 Makrygiannis et al.

2018

Greece

European

Case-control

Stable

175 / 166

72.7 ± 7.6 / 71.5 ± 7.1

PCR-RFLP

7

 Malkani et al.

2019

Iran

Asian

Case-control

Stable

101 / 100

59.2 ± 10.2 / 47.3 ± 13.1

PCR-RFLP

5

MMP-9 (R279Q)

 Nanni et al.

2007

Italy

European

Case-control

ACS

200 / 201

47.8 ± 6.2 / 47.0 ± 5.5

PCR-RFLP

7

 Wu et al.

2009

China

Asian

Case-control

ACS

2506 / 687

NR / 60.42 ± 9.07

PCR-RFLP

8

 Zhi et al.

2010

China

Asian

Case-control

Stable

762 / 555

67.46 ± 9.61 / 69.90 ± 11.48

PCR-RFLP

8

 Wang et al.

2011

China

Asian

Case-control

ASC

384 / 451

55.6 ± 10.9 / 54.1 ± 10.3

PCR-RFLP

8

 Mishra et al.

2012

India

Asian

Cohort

Stable

510 / 230

NR/ 54.2 ± 8.5

PCR-RFLP

8

 Opstad et al.

2012

Norway

European

Case-control

Stable

994 / 204

62 / NR

TaqMan

8

 Fiotti et al.

2017

Italy

European

Case-control

Stable

169 / 169

69–78 / 67–80

Sequencing

7

MMP-9 (P574R)

 Zhi et al.

2010

China

Asian

Case-control

Stable

762 / 555

67.46 ± 9.61 / 69.90 ± 11.48

PCR-RFLP

8

 Mishra et al.

2012

India

Asian

Cohort

Stable

510 / 230

NR / 54.2 ± 8.5

PCR-RFLP

8

MMP-9 (R668Q)

 Zhi et al.

2010

China

Asian

Case-control

Stable

762 / 555

67.46 ± 9.61 / 69.90 ± 11.48

PCR–RFLP

8

 Mishra et al.

2012

India

Asian

Cohort

Stable

510 / 230

NR / 54.2 ± 8.5

PCR–RFLP

8

  1. NR, not reported; ACS, Acute coronary syndrome