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Table 2 Genotypic frequency distribution of MTHFR and statistically significant clinical variables in relation to MTHFR genotype

From: Analysis of the MTHFR C677T variant with migraine phenotypes

Clinical variables

Subtype (Total)

MTHFR Genotype %

  

CC

CT

TT

Migraine Diagnosis

MO (102)

39 (39%)

61 (45%)

2 (6%)

P < 0.0001

MA (165)

61 (61%)

74 (55%)

30 (94%)

Unilateral head pain

Y (123)

40 (62%)

63 (77%)

20 (87%)

P < 0.0001

N (47)

25 (38%)

19 (23%)

3 (13%)

Physical activity

Y (149)

51 (69%)

78 (88%)

20 (83%)

P < 0.001

N (38)

23 (31%)

11 (12%)

4 (17%)

Stress

Y (123)

42 (61%)

68 (76%)

13 (52%)

P = 0.002

N (60)

27 (39%)

21 (24%)

12 (48%)

  1. Significant P values after correction for multiple testing (Bonferroni correction).
  2. MO = Migraine without aura, MA = Migraine with aura, Y = Yes and N = No.