A meta-analysis of DBH rs7239728 in all samples showed no sign of association with migraine (homozygote: OR = 1.02, 95% CI = 0.86–1.22; dominant: OR = 0.98, 95% CI = 0.88–1.11; recessive: OR = 0.98, 95% CI = 0.88–1.11; allele: OR = 1.02, 95% CI = 0.93–1.12; heterozygote: OR = 0.95, 95% CI = 0.82–1.10), with no significant heterogeneity (PHet > 0.05, I2 < 50%). Here, DBH is linked to migraine disorder.