CYP4V2 and hypertensive disorder: Genotype frequencies between IS patients with hypertension and IS patients without hypertension were compared, CYP4V2 rs1398007 (codominant: OR = 2.63, 95% CI 1.05–6.61, p = 0.035; dominant OR = 1.49, 95% CI 1.04–2.13, p = 0.030; log-additive: OR = 1.48, 95% CI 1.09–2.02, p = 0.011) was observed to be a genetic risk variant for IS patients with hypertension.