Relationship between Vitamin D Receptor Gene Polymorphisms and Migraine without Aura in an Iranian Population

Table 4

Distribution of vitamin D receptor haplotypes in the case and control groups.

	Case	Control	𝑃 value	OR (95% CI)	RR (95% CI)
Haplotypes
TF	119 (66.8%)	149 (78.4%)	0.008	0.55 (0.34–0.88)	0.85 (0.75–0.96)
Tf	21 (11.8%)	10 (5.2%)	0.019	2.40 (1.10–5.26)	2.24 (1.08–4.62)
tF	38 (21.4%)	31 (16.4%)	0.135	1.39 (0.82–2.35)	1.30 (0.85–2.00)
𝑃 value	0.012

OR: odds ratio, RR: relative risk, CI: confidence interval.