Body Mass Index, Migraine, Migraine Frequency and Migraine Features in Women
Abstract
We evaluated the association of body mass index (BMI) with migraine and migraine specifics in a cross-sectional study of 63 467 women aged > or = 45 years, of whom 12,613 (19.9%) reported any history of migraine and 9195 had active migraine. Compared with women without migraine and a BMI or = 35 kg/m(2) had adjusted odds ratios (ORs) (95% confidence intervals) of 1.03 (0.95, 1.12) for any history of migraine. Findings were similar for active migraineurs. Women with a BMI of > or = 35 kg/m(2) had increased risk for low and high migraine frequency, with the highest estimate for women who reported daily migraine. Compared with women with the lowest associated risk (migraine frequency or = 35 kg/m(2) had an OR of daily migraine of 3.11 (1.12, 8.67). Among the women with active migraine, a BMI > or = 35 kg/m(2) was associated with increased risk of phonophobia and photophobia and decreased risk of a unilateral pain characteristic and migraine aura. Our data confirm previous findings that the association between BMI with migraine is limited to migraine frequency and specific migraine features.
How strong is the evidence?
Evidence Hub reads this as a cross-sectional, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 63 participants or records.
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