Table 2 Maternal dietary intake of folate and vitamin B₁₂ and MTHFR genotypes

Nutrients dietary intake (%)

 Energy (Kcal/d)

 Mean ± SD

2,822.84 ± 902.75

2,809.76 ± 892.65

 Folate (<400 μg/d)

144 (62.34 %)

147 (63.64 %)

 B₁₂ Vitamin (<2.0 μg/d)

43 (18.61 %)

44 (19.05 %)

 Calcium (<1,200 mg/d)

143 (61.90 %)

130 (56.28 %)

 Iron (<30 mg/d)

208 (90.04 %)

212 (91.77 %)

 Zinc (<15 mg/d)

220 (95.24 %)

228 (98.70 %)

MTHFR genotypes (%)

 MTHFR 677 C>T ^a

  CC

36 (15.58)

–

  CT

115 (49.78)

–

  TT

80 (34.63)

–

 MTHFR 677 C>T

  C

187 (40.48)

–

  T

275 (59.52)

–

 MTHFR 1298A>C ^b

  AA

187 (81.66)

–

  AC

38 (16.59)

–

  CC

4 (1.75)

–

 MTHFR 1298 A>C

  A

412 (89.96)

  C

46 (10.04)