Methylenetetrahydrofolate Reductase Gene Variant (MTHFR C677T) and Migraine: A Case Control Study and Meta-analysis

Table 2 Sample Characteristics

Categorical Variables	No Migraine N = 1402	Any Migraine N = 447	χ²	p
Female N [%]	951 [59.7]	284 [76.3]	60.3	< 0.0001
Depression N [%]	851 [53.5]	286 [76.9]	105.4	< 0.0001
Married/cohabiting N [%]	422 [26.5]	121 [32.5]	2.3	0.13
≥ 1 Child N [%]	479 [30.1]	65 [17.5]	4.4	0.04
Currently employed N [%]	263 [16.5]	55 [14.8]	1.9	0.16
≥ 12 years education N [%]	207 [13.0]	77 [20.7]	0.36	0.55
Continuous Variables			t	p
Age in year [SD]	47.7 [± 11.14]	46.9 [± 11.7]	1.4	0.16

ISSN: 1471-2377