Phase 2 of the American Migraine Prevalence and Prevention (AMPP) study was a survey of individuals with headache, of whom 11,249 had episodic migraine, and 655 had chronic migraine.[Buse et al., 2010] People with chronic migraine were significantly less likely to be employed full-time, and more likely to be occupationally disabled, than people with episodic migraine.[Buse et al., 2010] Study data were used to analyse the differences in migraine comorbidities between people with episodic migraine and those with chronic migraine.[Buse et al., 2010] As shown on the slide, people with chronic migraine were significantly more likely to have a variety of psychiatric conditions, respiratory disorders, and risk factors for cardiac conditions.[Buse et al., 2010]
The comorbidity burden of chronic migraine
