Frequency of Migraine Headaches in Patients With Fibromyalgia

Objective.-The purpose of this study was to evaluate the frequency of migraine headache in a large cohort of patients with fibromyalgia using a brief migraine headache-screening tool. Background.-Several studies report a high prevalence of fibromyalgia among patients with migraine headaches, but there is a dearth of research evaluating the frequency of migraine headaches in patients with fibromyalgia, despite clinical observations suggesting that migraine headaches are common in patients with fibromyalgia. Design and Methods.-This was a cross-sectional survey study. Patients (N = 3717) with a previous diagnosis of fibromyalgia who were members of the Mayo Clinic Fibromyalgia Registry were contacted by electronic survey and asked to complete a brief demographic and medical history questionnaire and the validated ID-Migraine screener. Results.-A total of 1730 patients (46.5%) completed the electronic survey. The majority of participants were white (97.2%), female (92.5%), with a mean age of 56.2 (+/- 13.1) years. Of the respondents, 966 (55.8%) met criteria for migraine headaches. Hypertension (309 [32.3%] vs 294 [40.1%], P = .004), asthma (312 [32.5%] vs 189 [25.9%], P = .011), irritable bowel syndrome (520 [54.6%] vs 348 [47.6], P = .017), chronic fatigue syndrome (486 [50.7%] vs 271 [37.1], P < .0001), depression (634 [66.5%] vs 413 [56.7%], P = .0002), anxiety (415 [43.5%] vs 252 [34.7%], P = .0011), and post-traumatic stress disorder (172 [18.0%] vs 96 [13.2%], P = .006) were all significantly more common in those who met criteria for migraine headaches than those who did not. Conclusion.-The results of this study suggest that migraine headaches are common in patients with fibromyalgia. Clinicians who care for either population must be aware that these conditions commonly overlap and can significantly increase a patient's cumulative disease burden.