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Table 5 Summary of meta-analysis

From: VDR Gene variation and insulin resistance related diseases

Comparison of outcome

No. of trials

No. of Case

No. of Control

Effect size (95% confidence intervals)

P

Test for heterogeneity

I 2 (%)

P

ApaI

 GG/GT + TT

14

3212

3360

1.08 [0.91, 1.28]

0.37

30

0.14

 T2DM

9

2017

2555

1.00 [0.78, 1.28]

1

51

0.05

 PCOS

5

1195

805

1.15 [0.88, 1.50]

0.31

0

0.47

 GG + GT/TT

14

3212

3360

1.04 [0.89, 1.21]

0.62

38

0.08

 T2DM

9

2017

2555

0.93 [0.79, 1.11]

0.44

17

0.29

 PCOS

5

1195

805

1.15 [0.90, 1.45]

0.27

30

0.22

 G allele

14

3212

3360

1.04 [0.95, 1.14]

0.36

26

0.18

 T2DM

9

2017

2555

0.97 [0.85, 1.11]

0.7

42

0.1

 PCOS

5

1195

805

1.11 [0.96, 1.27]

0.15

0

0.84

 T allele

14

3212

3360

1.02 [0.91, 1.15]

0.7

56

0.0005

 T2DM

9

2017

2555

1.03 [0.90, 1.18]

0.68

43

0.09

 PCOS

5

1195

805

1.07 [0.83, 1.37]

0.62

70

0.01

Ethic

 GG/GT + TT

13

3087

3235

1.09 [0.91, 1.30]

0.34

34

0.11

 Caucasian

5

1488

1929

1.20 [0.99, 1.45]

0.06

0

0.41

 Caucasian (dark)

6

1091

1090

0.94 [0.64, 1.36]

0.73

52

0.07

 Asian

2

508

216

1.24 [0.88, 1.76]

0.22

0

0.88

 GG + GT/TT

13

3087

3235

1.08 [0.94, 1.24]

0.29

21

0.23

 Caucasian

5

1488

1929

1.13 [0.87, 1.46]

0.36

49

0.1

 Caucasian (dark)

6

1091

1090

0.97 [0.81, 1.15]

0.7

0

0.89

 Asian

2

508

216

1.62 [1.03, 2.53]

0.04

0

0.35

 G allele

13

3087

3235

1.06 [0.98, 1.16]

0.16

13

0.31

 Caucasian

5

1488

1929

1.11 [0.98, 1.27]

0.06

0

0.51

 Caucasian (dark)

6

1091

1090

0.96 [0.85, 1.09]

0.51

0

0.66

 Asian

2

508

216

1.25 [0.99, 1.57]

0.1

17

0.3

 T allele

13

3087

3235

1.01 [0.89, 1.14]

0.93

56

0.008

 Caucasian

5

1488

1929

0.94 [0.80, 1.09]

0.4

42

0.14

 Caucasian (dark)

6

1091

1090

1.16 [0.97, 1.38]

0.1

47

0.009

 Asian

2

508

216

0.80 [0.64, 1.01]

0.06

0

0.51

Latitude

 GG/GT + TT

14

3212

3360

1.08 [0.91, 1.28]

0.37

30

0.14

 Low (<30)

5

1136

834

0.86 [0.65, 1.14]

0.3

19

0.29

 Middle (30–60)

9

2076

2526

1.22 [1.04, 1.43]

0.02

0

0.43

 GG + GT/TT

14

3212

3360

1.04 [0.89, 1.21]

0.62

38

0.08

 Low (<30)

5

1136

834

0.91 [0.73, 1.15]

0.44

17

0.31

 Middle (30–60)

9

2076

2526

1.12 [0.92, 1.36]

0.27

42

0.08

 G allele

14

3212

3360

1.04 [0.95, 1.14]

0.36

26

0.18

 Low (<30)

5

1136

834

0.92 [0.80, 1.07]

0.27

10

0.35

 Middle (30–60)

9

2076

2526

1.12 [1.01, 1.23]

0.02

0

0.44

 T allele

14

3212

3360

1.02 [0.91, 1.15]

0.7

56

0.005

 Low (<30)

5

1136

834

1.09 [0.94, 1.25]

0.26

10

0.35

 Middle (30–60)

9

2076

2526

0.99 [0.84, 1.18]

0.95

66

0.003

BsmI

 AA/GA + GG

22

4294

4157

0.95 [0.78, 1.16]

0.64

41

0.02

 T2DM

14

2802

3051

0.99 [0.75, 1.31]

0.93

55

0.007

 PCOS

4

835

443

1.11 [0.77, 1.58]

0.58

0

0.61

 MetS

4

657

663

0.72 [0.50, 1.05]

0.09

0

0.5

 AA + GA/GG

22

4294

4157

1.06 [0.86, 1.31]

0.59

69

<0.00001

 T2DM

14

2802

3051

1.19 [0.90, 1.57]

0.21

71

<0.001

 PCOS

4

835

443

1.06 [0.79, 1.42]

0.7

19

0.29

 MetS

4

657

663

0.62 [0.45, 0.86]

0.005

11

0.34

 A allele

22

4294

4157

0.97 [0.83, 1.13]

0.67

72

<0.00001

 T2DM

14

2802

3051

1.05 [0.85, 1.28]

0.67

76

<0.00001

 PCOS

4

835

443

0.96 [0.79, 1.16]

0.65

12

0.33

 MetS

4

657

663

0.71 [0.54, 0.93]

0.01

37

0.19

 G allele

22

4294

4157

1.08 [0.89, 1.32]

0.42

83

<0.00001

 T2DM

14

2802

3051

0.96 [0.78, 1.17]

0.67

76

<0.00001

 PCOS

4

835

443

1.27 [0.67, 2.40]

0.73

91

0.00001

 MetS

4

657

663

1.41 [1.07, 1.85]

0.01

37

0.19

Ethic

 AA/GA + GG

21

4194

4057

0.98 [0.80, 1.21]

0.87

40

0.03

 Caucasian

7

1683

2121

1.01 [0.81, 1.26]

0.92

9

0.36

 Caucasian (dark)

7

913

793

1.05 [0.82, 1.35]

0.69

0

0.82

 Asian

7

1598

1143

0.90 [0.39, 2.08]

0.81

67

0.006

 AA + GA/GG

21

4194

4057

1.10 [0.89, 1.36]

0.38

68

<0.00001

 Caucasian

7

1683

2121

0.98 [0.82, 1.18]

0.84

25

0.24

 Caucasian (dark)

7

913

793

1.50 [1.16, 1.93]

0.002

19

0.29

 Asian

7

1598

1143

0.89 [0.49, 1.61]

0.69

80

<0.00001

 A allele

21

4194

4057

1.02 [0.87, 1.19]

0.84

72

<0.00001

 Caucasian

7

1683

2121

1.03 [0.86, 1.23]

0.75

59

0.02

 Caucasian (dark)

7

913

793

1.23 [1.07, 1.42]

0.004

0

0.91

 Asian

7

1598

1143

0.81 [0.49, 1.34]

0.42

86

<0.00001

 G allele

21

4194

4057

1.06 [0.87, 1.29]

0.57

83

<0.00001

 Caucasian

7

1683

2121

1.19 [0.85, 1.65]

0.32

89

<0.00001

 Caucasian (dark)

7

913

793

0.81 [0.70, 0.94]

0.004

0

0.91

 Asian

7

1598

1143

1.23 [0.74, 2.04]

0.42

86

<0.00001

Latitude

 AA/GA + GG

22

4294

4157

0.95 [0.78, 1.16]

0.64

41

0.02

 Low (<30)

5

912

659

0.74 [0.52, 1.05]

0.09

39

0.16

 Middle (30–60)

17

3382

3498

1.05 [0.83, 1.33]

0.68

37

0.06

 AA + GA/GG

22

4294

4157

1.06 [0.86, 1.31]

0.59

69

<0.00001

 Low (<30)

5

912

659

1.32 [0.73, 2.38]

0.35

70

0.009

 Middle (30–60)

17

3382

3498

1.00 [0.81, 1.23]

0.97

61

0.0005

 A allele

22

4294

4157

0.97 [0.83, 1.13]

0.67

72

<0.00001

 Low (<30)

5

912

659

0.96 [0.64, 1.43]

0.83

80

0.0005

 Middle (30–60)

17

3382

3498

0.97 [0.82, 1.15]

0.7

70

<0.00001

 Gallele

22

4294

4157

1.08 [0.89, 1.32]

0.42

83

<0.00001

 Low (<30)

5

912

659

1.04 [0.70, 1.56]

0.83

80

0.0005

 Middle (30–60)

17

3382

3498

1.09 [0.87, 1.37]

0.44

84

<0.00001

TaqI

 TT/TC + CC

19

3533

4024

1.00 [0.82, 1.21]

0.96

60

0.004

 T2DM

13

2305

3187

1.09 [0.84, 1.42]

0.51

60

0.003

 PCOS

6

1228

837

0.86 [0.62, 1.20]

0.37

65

0.01

 TT + TC/CC

19

3533

4024

0.88 [0.73, 1.06]

0.17

43

0.02

 T2DM

13

2305

3187

0.92 [0.74, 1.14]

0.43

41

0.06

 PCOS

6

1228

837

0.77 [0.51, 1.16]

0.22

52

0.06

 T allele

19

3533

4024

0.89 [0.75, 1.06]

0.18

79

<0.0001

 T2DM

13

2305

3187

1.01 [0.86, 1.18]

0.95

60

0.003

 PCOS

6

1228

837

0.68 [0.48, 0.96]

0.03

84

<0.0001

 C allele

19

3533

4024

1.13 [0.95, 1.34]

0.18

79

<0.0001

 T2DM

13

2305

3187

0.99 [0.85, 1.17]

0.95

60

0.03

 PCOS

6

1228

837

1.47 [1.03, 2.09]

0.03

84

0.00001

Ethic

 TT/TC + CC

17

3368

3859

0.93 [0.78, 1.12]

0.45

49

0.01

 Caucasian

7

1653

2190

1.10 [0.90, 1.36]

0.35

38

0.14

 Caucasian (dark)

7

1159

1121

0.75 [0.58, 0.97]

0.03

46

0.08

 Asian

3

556

548

1.94 [0.32, 11.77]

0.47

0

0.44

 TT + TC/CC

17

3368

3859

0.88 [0.72, 1.07]

0.2

48

0.01

 Caucasian

7

1653

2190

1.12 [0.82, 1.53]

0.47

50

0.06

 Caucasian (dark)

7

1159

1121

0.76 [0.57, 1.02]

0.07

39

0.13

 Asian

3

556

548

0.67 [0.47, 0.96]

0.03

0

0.4

 T allele

17

3368

3859

0.84 [0.71, 1.01]

0.06

78

<0.00001

 Caucasian

7

1653

2190

0.94 [0.66, 1.33]

0.73

90

<0.00001

 Caucasian (dark)

7

1159

1121

0.80 [0.68, 0.95]

0.01

41

0.12

 Asian

3

556

548

0.73 [0.51, 1.04]

0.08

10

0.33

 C allele

17

3368

3859

1.18 [0.99, 1.41]

0.06

78

<0.00001

 Caucasian

7

1653

2190

1.06 [0.75, 1.51]

0.73

90

<0.00001

 Caucasian (dark)

7

1159

1121

1.24 [1.05, 1.47]

0.01

42

0.11

 Asian

3

556

548

1.37 [0.96, 1.94]

0.08

10

0.33

Latitude

 TT/TC + CC

18

3493

3984

0.95 [0.80, 1.12]

0.52

47

0.02

 Low (<30)

5

934

896

0.86 [0.67, 1.09]

0.2

24

0.26

 Middle (30–60)

13

2559

3088

1.00 [0.79, 1.25]

0.97

52

0.01

 TT + TC/CC

18

3493

3984

0.87 [0.72, 1.05]

0.15

45

0.02

 Low (<30)

5

934

896

0.88 [0.70, 1.12]

0.3

0

0.44

Middle (30–60)

13

2559

3088

0.87 [0.67, 1.13]

0.29

56

0.007

 T allele

18

3493

3984

0.85 [0.72, 1.01]

0.06

77

<0.00001

 Low (<30)

5

934

896

0.90 [0.78, 1.02]

0.11

0

0.69

 Middle (30–60)

13

2559

3088

0.84 [0.66, 1.07]

0.15

83

<0.00001

 C allele

18

3493

3984

1.17 [0.99, 1.39]

0.06

77

<0.00001

 Low (<30)

5

934

896

1.11 [0.97, 1.27]

0.12

0

0.68

 Middle (30–60)

13

2559

3088

1.19 [0.94, 1.51]

0.15

83

<0.00001

FokI

 CC/CT + TT

18

4992

6230

1.03 [0.82, 1.30]

0.79

80

<0.00001

 T2DM

9

1086

690

1.10 [0.75, 1.60]

0.63

81

<0.00001

 PCOS

5

631

559

1.20 [0.97, 1.48]

0.1

0

0.49

 MetS

3

1084

1960

0.60 [0.16, 2.33]

0.46

93

<0.00001

 CC + CT/TT

18

4992

6230

0.92 [0.72, 1.17]

0.49

74

<0.00001

 T2DM

9

1086

690

1.02 [0.76, 1.37]

0.88

58

0.01

 PCOS

5

631

559

1.29 [0.82, 2.03]

0.27

41

0.15

 MetS

3

1084

1960

0.35 [0.10, 1.19]

0.09

93

<0.00001

 C allele

18

4992

6230

0.99 [0.87, 1.12]

0.84

73

<0.00001

 T2DM

9

1086

690

1.00 [0.79, 1.26]

0.99

81

<0.00001

 PCOS

5

631

559

1.09 [0.85, 1.39]

0.49

54

0.07

 MetS

3

1084

1960

0.75 [0.49, 1.14]

0.18

72

0.03

 T allele

18

4992

6230

1.01 [0.89, 1.15]

0.85

73

<0.00001

 T2DM

9

1086

690

1.00 [0.79, 1.26]

0.99

81

<0.00001

 PCOS

5

631

559

0.92 [0.72, 1.17]

0.49

54

0.07

 MetS

3

1084

1960

1.33 [0.87, 2.02]

0.19

73

0.03

Ethic

 CC/CT + TT

17

4892

6130

1.01 [0.80, 1.28]

0.92

80

<0.00001

 Caucasian

4

1068

585

1.36 [0.77, 2.41]

0.29

83

0.0006

 Caucasian (dark)

8

1240

1019

0.75 [0.41, 1.36]

0.35

86

<0.00001

 Asian

5

2584

4526

1.13 [0.98, 1.30]

0.1

24

0.26

 CC + CT/TT

17

4892

6130

0.91 [0.69, 1.20]

0.49

76

<0.00001

 Caucasian

4

1068

585

1.25 [0.90, 1.74]

0.19

21

0.28

 Caucasian (dark)

8

1240

1019

0.54 [0.26, 1.11]

0.09

82

<0.00001

 Asian

5

2584

4526

1.13 [0.87, 1.47]

0.36

56

0.06

 C allele

17

4892

6130

0.99 [0.86, 1.13]

0.83

74

<0.00001

 Caucasian

4

1068

585

1.24 [0.92, 1.69]

0.16

74

0.01

 Caucasian (dark)

8

1240

1019

0.77 [0.57, 1.04]

0.09

74

0.0003

 Asian

5

2584

4526

1.06 [0.94, 1.18]

0.35

49

0.1

 T allele

17

4892

6130

1.01 [0.89, 1.16]

0.84

74

<0.00001

 Caucasian

4

1068

585

0.80 [0.59, 1.09]

0.16

74

0.01

 Caucasian (dark)

8

1240

1019

1.29 [0.96, 1.74]

0.09

74

0.0003

 Asian

5

2584

4526

0.95 [0.85, 1.06]

0.33

46

0.12

Latitude

 CC/CT + TT

18

4992

6230

1.03 [0.82, 1.30]

0.79

80

<0.00001

 Low (<30)

5

852

791

1.00 [0.65, 1.52]

0.99

52

0.08

 Middle (30–60)

13

4140

5439

1.03 [0.79, 1.36]

0.82

84

<0.00001

 CC + CT/TT

18

4992

6230

0.92 [0.72, 1.17]

0.49

74

<0.00001

 Low (<30)

5

852

791

0.78 [0.60, 1.01]

0.06

0

0.75

 Middle (30–60)

13

4140

5439

0.94 [0.69, 1.26]

0.66

80

<0.00001

 C allele

18

4992

6230

0.99 [0.87, 1.12]

0.84

73

<0.00001

 Low (<30)

5

852

791

0.91 [0.74, 1.11]

0.36

33

0.2

 Middle (30–60)

13

4140

5439

1.01 [0.86, 1.18]

0.93

78

<0.00001

 T allele

18

4992

6230

1.01 [0.89, 1.15]

0.85

73

<0.00001

 Low (<30)

5

852

791

1.10 [0.90, 1.35]

0.36

33

0.2

 Middle (30–60)

13

4140

5439

0.99 [0.85, 1.16]

0.92

78

<0.00001