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Table 2 Distribution of genotype and allele among asthma patients and controls

From: Interleukin 4 gene polymorphism (−589C/T) and the risk of asthma: a meta-analysis and met-regression based on 55 studies

Study author

Asthma cases

Healthy control

P-HWE

MAF

CC

CT

TT

C

T

CC

CT

TT

C

T

Walley et al. [29]

56

55

13

167

81

31

23

5

85

33

0/8

0/72

Hijazi et al. [30]

5

25

54

35

133

9

31

60

49

151

0/1

0/245

Sandford et al. [31]

146

78

9

370

96

100

41

2

241

45

0/33

0/842

Takabayashi et al. [32]

6

43

51

55

145

10

39

51

59

141

0/53

0/295

Hakonarson et al. [33]

73

20

1

166

22

67

25

2

159

29

0/85

0/845

Cui et al. [34]

11

89

141

111

371

9

52

114

70

280

0/34

0/2

Basehore et al. (i) [16]

153

72

8

378

88

181

59

5

421

69

0/94

0/859

Basehore et al. (ii) [16]

22

77

69

121

215

29

119

121

177

361

0/97

0/329

Basehore et al. (iii) [16]

43

55

18

141

91

55

59

16

169

91

0/97

0/65

Lee et al. [35]

9

77

168

95

413

3

29

68

35

165

0/96

0/175

Park et al. [36]

19

164

349

202

862

7

54

109

68

272

0/92

0/2

Wang et al. [37]

29

42

22

100

86

21

26

15

68

56

0/22

0/548

Adjers et al. [38]

106

103

34

315

171

189

164

48

542

260

0/18

0/675

Donfack et al. (i) [26]

85

34

7

204

48

144

55

6

343

67

0/78

0/836

Donfack et al. (ii) [26]

25

82

98

132

278

24

82

77

130

236

0/76

0/355

Zhang et al. (i) [27]

4

47

101

55

249

3

45

109

51

263

0/5

0/162

Zhang et al. (ii) [27]

11

35

30

57

95

16

43

41

75

125

0/4

0/375

Zhang et al. (iii) [27]

50

31

6

131

43

66

30

7

162

44

0/17

0/786

Gervaziev et al. [39]

16

75

18

107

111

18

43

7

79

57

0/01

0/58

Schubert et al. [40]

143

78

10

364

98

189

74

7

452

88

0/93

0/837

Kabesch et al. [41]

42

29

2

113

33

564

188

21

1316

230

0/26

0/851

Battle et al. [42]

28

113

114

169

341

19

77

79

115

235

0/97

0/328

Hosseini-Farahabadi et al. [43]

17

8

5

42

18

38

12

0

88

12

0/33

0/88

Kamali-Sarvestani et al. [44]

139

6

4

284

14

93

18

1

204

20

0/9

0/91

Chiang et al. [45]

1

19

147

21

313

7

34

70

48

174

0/31

0/216

Mak et al. [46]

15

95

179

125

453

19

87

186

125

459

0/05

0/214

Attab et al. [47]

31

9

0

71

9

33

7

0

73

7

0/54

0/912

De Faria et al. [48]

38

41

9

117

59

67

108

27

242

162

0/1

0/599

Jiang et al. [49]

0

8

5

8

18

1

9

3

11

15

0/13

0/423

Amirzargar et al. [50]

0

59

0

59

59

10

129

0

149

129

< 0.001

0/535

Daley et al. [51]

476

155

13

1107

181

549

186

16

1284

218

0/95

0/854

Haller et al. [52]

6

30

36

42

102

7

31

32

45

95

0/89

0/321

Rad et al. [53]

46

18

0

110

18

42

23

0

107

23

0/08

0/823

Wu et al. [54]

6

83

163

95

409

11

84

132

106

348

0/61

0/233

Beghe et al. [55]

232

63

4

527

71

136

37

3

309

43

0/79

0/877

Bijanzadeh et al. [56]

92

4

4

188

12

48

1

1

97

3

< 0.001

0/97

Fance et al. [57]

38

13

11

89

35

27

1

2

55

5

< 0.001

0/916

Baye et al. (i) [28]

267

130

16

664

162

233

61

4

527

69

0/99

0/884

Baye et al. (ii) [28]

35

140

140

210

420

12

25

14

49

53

0/89

0/48

Daneshmandi et al. [58]

63

15

3

141

21

94

26

4

214

34

0/2

0/862

Huang et al. [59]

1

19

80

21

179

4

43

75

51

193

0/46

0/209

Hwang et al. [60]

1

51

136

53

323

12

89

275

113

639

0/15

0/15

Chiang et al. [61]

13

110

329

136

768

7

34

65

48

164

0/38

0/226

Micheal et al. [62]

26

63

19

115

101

31

84

5

146

94

< 0.001

0/608

Ricciardolo et al. [63]

35

19

3

89

25

109

12

3

230

18

< 0.001

0/927

Smolnikova et al. [64]

36

28

0

100

28

39

11

0

89

11

0/38

0/89

Li et al. [65]

17

150

324

184

798

21

144

338

186

820

0/26

0/184

Wang et al. [66]

50

177

165

277

507

104

412

333

620

1078

0/17

0/365

Dahmani et al. [67]

13

19

12

45

43

6

11

2

23

15

0/35

0/605

Li et al. [68]

112

0

205

224

410

138

0

213

276

426

< 0.001

0/393

Narozna et al. [69]

117

55

5

289

65

133

53

3

319

59

0/37

0/843

Zhang et al. [68]

8

11

19

27

49

17

13

5

47

23

0/34

0/671

Hussein et al. [70]

42

5

1

89

7

8

13

4

29

21

0/73

0/58

Abood et al. [71]

66

17

17

149

51

7

90

3

104

96

< 0.001

0/52

Zhang et al. [72]

7

13

17

27

47

11

15

3

37

21

0/51

0/637

  1. P-HWE p-value for Hardy–Weinberg equilibrium, MAF minor allele frequency of control group