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In page Waardenburg syndrome:
"It is estimated that Waardenburg syndrome is present in 2–5% of congenitally deaf people. Congenital deafness comprises around half of deafness as a whole.[2] About 1 in 30 students in schools for the deaf have Waardenburg syndrome. The variable presentation of the syndrome makes it difficult to arrive at precise figures for its prevalence.[2]
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