Myasthenia gravis epidemiology and demographics
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Incidence
The incidence of Myasthenia gravis is approximately 7-23 new cases per year.(3_6)
Prevalence
The prevalence of Myasthenia gravis is approximately 70-320 per million and increasing since 20th century (3_4_6_7)
Age and Gender
The age of onset in Myasthenia gravis follows a bimodal distribution. The early type (before age of 50) is female predominant and the late type (after age of 60) is male predominant. Between the age of 50-60 there is no significant different between male and female. (27)