Table 4.

Chi-squared (χ ²) analysis of all migraine groups against controls for the KCNJ10 SNP (rs1130183) polymorphism

	Genotypic frequencies	Allelic frequencies
Migraine vs Control	X2 = 7.65 P = 0.02	X2 = 0.14 P = 0.71
MA vs Control	X2 = 5.12 P = 0.08	X2 = 0 P = 0.95
MO vs Control	X2 = 1.02 P = 0.59	X2 = 0.42 P = 0.52
Female Migraine vs Female Control	X2 = 5.32 P = 0.07	X2 = 0.03 P = 0.87
Male Migraine vs Male Control	X2 = 2.56 P = 0.28	X2 = 0.24 P = 0.62