Table 3 Distribution of genotypes and alleles of MTHFR in patients and controls

C677T

 CC

47 (46.5)

54 (52.9)

Ref.

 CT

40 (39.6)

45 (44.2)

1 (0.6–1.8)

 TT

14 (13.9)

3 (2.9)

5.4 (1.4–19.8)

 CC/CT^a

87 (86)

99 (97)

Ref.

 TT

14 (14)

3 (3)

5.3 (1.5–19.1)

 CC^b

47 (46)

54 (53)

Ref.

 CT/TT

54 (54)

48 (47)

1.3 (0.7–2.2)

 C

134 (66)

153 (75)

Ref.

 T

68 (34)

51 (25)

1.5 (1–2.3)

 HWE: p value

0.27

0.11