Table 2: Chi-Squared (χ²) Analysis of all Migraine Groups Against Controls for the S377G Polymorphism

	Genotypes		Alleles
	χ²	P-value	χ²	P-value
Migraine vs Control	0.84	0.66	0.28	0.6
Subtypes	χ²	P-value	χ²	P-value
MA vs Control	0.99	0.61	0.29	0.59
MO vs Control	0.2	0.91	0.09	0.77
Mig Female vs Control Female	1.85	0.4	0.13	0.72
Mig Male vs Control Male	0.99	0.61	0.18	0.67