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Table 2 Subgroup analysis

From: Association between RUNX3 promoter methylation and gastric cancer: a meta-analysis

Group

Cancer

Normal

Sum

M-H pooled OR

D+L pooled OR

Heterogeneity

Ï„2

 

M+

N

M+

N

 

OR (95%CI)

z

p

OR(95%CI)

z

P

χ2

I2 (%)

P

 

Total

475

928

159

812

1740

5.52(4.30, 7.10)

13.3

< 0.0001

5.63(3.15,10.07)

5.82

< 0.0001

57.91

74.1

< 0.0001

0.94

Tissue subgroup

              

Autologous tissue

362

739

117

728

1467

7.15(5.36, 9.53)

13.4

< 0.0001

6.42(4.07,10.11)

8

< 0.0001

24.12

50.02

0.02

0.32

Heterogeneous tissue

113

189

42

84

273

5.52(4.30, 7.10)

2.22

0.026

4.44(0.35,56.70)

1.15

0.251

18.69

89.3

< 0.0001

4.21

Origin subgroup

              

Japan

234

441

89

332

773

3.20(2.30, 4.47)

6.86

< 0.0001

3.20(1.60,6.39)

3.29

0.001

25.03

72

0.001

0.7

Euro-America

65

85

45

85

170

8.12(2.76, 23.88)

3.8

< 0.0001

5.15(0.23,113.17)

1.04

0.299

5.95

83.2

0.015

4.14

China

132

249

14

253

502

18.44(10.30, 33.03)

9.8

< 0.0001

26.19(8.04,85.33)

5.42

< 0.0001

5.82

48.4

0.121

0.66

Korea

44

153

11

142

295

5.10(2.48, 10.47)

4.42

< 0.0001

4.96(2.14,11.47)

3.74

< 0.0001

1.18

15.5

0.277

0.07

Age subgroup

              

age < 60

46

114

4

133

247

15.25(5.33, 43.61)

5.08

< 0.0001

15.00(5.21,43.15)

5.02

< 0.0001

0.6

< 0.001

0.437

< 0.001

60≤age < 65

276

539

83

465

1004

7.41(5.16, 10.62)

10.9

< 0.0001

6.31(3.19,12.46)

5.3

< 0.0001

18.88

62.9

0.009

0.54

age≥65

153

245

72

214

459

2.93(1.98, 4.32)

5.39

< 0.0001

3.75(1.29,10.89)

2.43

0.015

25.18

80.1

< 0.0001

1.31

  1. M+: The number of tissues with methylation; N: Number of the total observations.