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Table 1 The basic characteristics description of included studies

From: Association of tumor necrosis factor-α gene polymorphisms and coronary artery disease susceptibility: a systematic review and meta-analysis

Study

Country

No. of patients

Age

Gender

Genetic testing method

Ethnicity

Case group

Control group

Case group

Control group

Case group

Control group

S. M. Herrmann et al. 1998 a

Northern Ireland

641

710

Polymerase chain reaction-single-strand conformation polymorphism

European

S. M. Herrmann et al. 1998 b

France

446

531

Polymerase chain reaction-single-strand conformation polymorphism

European

Li Yan et al. 2004

China

210

186

    

Polymerase chain reaction-single-strand conformation polymorphism

North Asian

A.M. Bennet et al. 2006

Sweden

1213

1561

52~67

53~68

852 M

1054 M

European

Liu Yan et al. 2011

China

438

330

high resolution melting

North Asian

Zhang Lei et al. 2011

China

107

115

high resolution melting

North Asian

Ho-Chan Cho et al. 2013

South Korea

197

404

61.4

62.01

130 M

263 M

North Asian

Qi Xiaoming et al. 2014

China

207

274

high resolution melting

North Asian

Liu Yan et al. 2009

China

286

202

matrix assisted laser desorption ionization time

North Asian

Liang Hao et al. 2011

China

121

138

84 M

92 M

Polymerase chain reaction-single-strand conformation polymorphism

North Asian

Xiang Xiaping et al. 2004

China

162

182

Enzyme - linked immunosorbent assay with double antibody sandwich

North Asian

Li Yan et al. 2003

China

112

158

North Asian

Sun Yujie et al. 2007

China

121

115

64.9

50.4

84 M

74 M

Polymerase chain reaction-single-strand conformation polymorphism

North Asian

Pan Min et al. 2008

China

90

115

65.6

64.06

65 M

70 M

Polymerase chain reaction-single-strand conformation polymorphism

North Asian

Zhao Xiaolei et al. 2015

China

783

749

64.82

59.74

497 M

477 M

North Asian

Lakhdar Ghazouani et al. 2009

Tunisia

418

406

58.1

56.7

87F

107F

African

Indranil Banerjee et al. 2007

India

210

232

59

56

166 M

166 M

Polymerase chain reaction-single-strand conformation polymorphism

South Asian

Elena Sandoval-Pinto et al. 2016

Mexico

251

164

65

58

187 M

71 M

Enzyme - linked immunosorbent assay with double antibody sandwich

North American

Yuting Cheng et al. 2015

China

247

304

61.13

61.31

120F

152F

North Asian

I. SBARSI et al. 2007

Italy

248

241

61.8

197 M

Polymerase chain reaction-single-strand conformation polymorphism

European

Robertina Giacconi et al. 2006

Italy

105

190

71.9

76

72 M

123 M

European

R. A. Allen et al. 2001

UK

180

250

59~63

37

117 M

124 M

European

P. E. Morange et al. 2008

Germany

136

1264

67

61

100 M

923 M

European

Liping Hou et al. 2009

China

804

905

North Asian

Aparna A. Bhanushali et al. 2013

India

100

150

48

50

80 M

70 M

South Asian

Gul Zareen Asifa et al. 2013

Pakistan

310

310

54.3

53.2

South Asian

  1. F:female, M: male