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Table 4 Association between MTHFR C677T variant and CHDs Risk across the selected cases

From: Association between MTHFR C677T variant and risk for congenital heart defects in Egyptian children: a case–control study including meta-analysis based on 147 cases and 143 controls

Author

El-Abd et al.

Kotby et al.

The current study

CHDs population

Mixed*

Conotruncal heart defects

Mixed

Models of inheritance

Cases

N = 26

Controls

N = 18

Cases

N = 30

Controls

N = 30

Cases

N = 91

Controls

N = 95

CT + TT

CC

Dominant model

19

7

5

13

18

12

10

20

49

42

40

55

OR [CI 95%]

P value

7.06 [1.83–27.15]

0.005

3.00 [1.05–8.60]

0.0410

1.60 [0.90–2.86]

0.1099

CT

CC

Heterozygote model

12

7

5

13

14

12

8

20

41

42

34

55

OR[CI 95%]

P value

4.46 [1.11–17.90]

0.0351

2.92 [0.95–8.99]

0.0623

1.58 [0.86–2.90]

0.1399

TT

CT + CC

Recessive model

7

19

0

18

4

26

2

28

8

83

6

89

OR[CI 95%]

P value

14.23 [0.76–267.20]

0.0759

2.15 [0.36–12.76]

0.3980

1.42 [0.48–4.29]

0.5241

TT

CC

Homozygote model

7

7

0

13

4

12

2

20

8

42

6

55

OR[CI 95%]

P value

27.00 [1.35–541.60]

0.0312

3.33 [0.53–21.03]

0.2002

1.75 [0.56–5.42]

0.3346

T

C

26

26

5

31

18

38

12

48

57

125

46

144

OR [CI 95%]

P value

6.2 [2.08–18.44]

0.001

2.32 [1.02–5.27]

0.05

1.43 [0.90–2.25]

0.126

Phet

0.001

 

0.002

 

0.001

 
  1. *“Mixed” means the authors' subjects include conotruncal heart and cardiac septal defects in one study