A descriptive epidemiology study of cleft lip and palate in Northern Finland

Abstract

The incidence of clefts in Northern Finland is higher than the corresponding incidence in other European countries. Cleft palate was the most frequent cleft type and it was more frequent in females. In males, cleft lip and palate was more frequent. The left side was more frequently affected in both genders. One fifth of the patients had a family history of clefts.