Epidemiology

Vitiligo is a common disorder affecting all races and geographic areas with a prevalence of 0.5% to 2% worldwide.[6]

In the US, the population-based prevalence estimate of overall vitiligo in adults (diagnosed and undiagnosed combined) is between 0.76% and 1.11%.[7] Among patients with diagnosed vitiligo, the point prevalence estimate was 0.46% (0.37% nonsegmental vitiligo; 0.09% segmental vitiligo).[7] 

Vitiligo may manifest at any time in an individual's life. However, almost half of patients develop vitiligo before the age of 20 years, and about 80% before the age of 30 years.[1][6] Men and women are equally affected.[6]

There is an increased prevalence in people with a family history of the condition.[8][9] Studies indicate genetic heterogeneity with respect to susceptibility to vitiligo.[1][10][11][12][13]

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