What is the prevalence of moyamoya disease?

Updated: Nov 09, 2018
  • Author: Roy Sucholeiki, MD; Chief Editor: Amy Kao, MD  more...
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A study indicated that the prevalence of moyamoya disease in California and Washington was 0.086 case per 100,000 people. [8] In this study, the breakdown based on ethnicity as ratio to whites was 4.6 for Asian Americans, 2.2 for African Americans, and 0.5 for Hispanics.

The incidence of moyamoya disease is highest in Japan. [9] The prevalence and incidence of the disorder there has been reported to be 3.16 cases and 0.35 case per 100,000 people, respectively.

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