Migraine is a neurological disease characterized by recurrent moderate to severe headaches often in association with a number of autonomic nervous system symptoms. Associated symptoms may include nausea, vomiting, and sensitivity to light, sound, or smell. The pain is generally made worse by physical activity.
Migraines are believed to be due to a mixture of environmental and genetic factors. It is, however, believed to be a neurovascular disorder. The lifetime prevalence of migraine in women was 33% and the 1-year prevalence of migraine in women was 25%. In men, the lifetime prevalence was 13.3% and the 1-year prevalence was 7.5%. Among patients with migraine in the past year, 63.9% had migraine without aura, 17.9% had migraine with aura, and 13.1% had migraine both with and without aura.
The prevalence of migraine was significantly higher in women and not associated with socioeconomic status. Migraineurs suffered a median of 12 migraine attacks per year; 25% had at least two attacks per month.The prevalence of migraine is higher then previously reported. The coexistence of migraine with and without aura occurs frequently and has implications for future studies on the genetics of migraine.