Investigation of Chemokine Receptor CCR2V64Il Gene Polymorphism and Migraine without Aura in the Iranian Population

Table 2

Distribution of allele and genotype of CCR2 gene polymorphism in the case and control groups.

	Case	Control	𝑃 value	OR (95% confidence interval)
Alleles
G	182 (88.4%)	175 (87.5%)	0.396	0.92 (0.50–1.67)
A	24 (11.6%)	25 (12.5%)
Genotype
Homozygote (GG)	79 (76.7%)	75 (75%)	0.388	0.91 (0.47–1.73)
Heterozygote (GA)	24 (23.3%)	25 (25%)