A population-based study conducted by Rasmussen showed that the annual incidence of migraine is 3.7 per 1,000 person years (women 5.8 men 1.6). Few studies of migraine incidence have been performed. Migraine is more frequent in women than men. It increases until approximately age 40, and then declines. Migraine is most common in the third decade of life and in lower socioeconomic groups. As adolescence approaches, prevalence increases more rapidly in girls than in boys.
Before puberty, migraine prevalence is approximately 4%. Overall, migraine prevalence varies by age, gender, race, and income. In a study of Egyptian school children in Assiut, the prevalence of migraine is 16.6% (female to male ratio: 1.33).
In Arab countries, the migraine prevalence was 2.6–5% in Saudi Arabia and 7.9% in Qatar, while the 1-year migraine prevalence was 10.1% in Oman.
In Africa, crude prevalence rate is estimated at 19 %, and specific rates of 26.8 % for women versus 9.4 % for men (3). In European and American studies the one-year period prevalence of migraine in adults is estimated at 10-15%, significantly more women are affected than men, in a ratio of 2-3:l In Japan the reported prevalence is 8.4%.
#High blood pressure migraine aura series#
A series of population- based studies based on the new operational International Headache Society (IHS) criteria, has found that migraine, although common, has a variable prevalence worldwide. Migraine is a common chronic presenting complaint encountered in Neurology and Internal Medicine clinics.
0 kommentar(er)
