Epidemiology of orofacial clefts in the East of ireland in the 25-year period 1984-2008.

Objective : To describe the epidemiology of orofacial clefts in the east of Ireland. Design and Setting : A descriptive epidemiologic study on 851 cases of orofacial cleft identified over a 25-year period from 1984 to 2008 from more than 500,000 births. Results : There were 438 (51.