Cleft palate incidence by population

Cleft lip and/or palate is a congenital abnormality that is seen frequently around the world. On average, about 1 in every 500-750 live births result in a cleft. Furthermore, in the U.S., the prevalence for cleft lip with or without cleft palate is 2.2 to 11.7 per 10,000 births. Cleft palate alone (CP) results in a prevalence rate of 5.5 to 6.6 per 10,000 births. Cleft of the lip, palate, or both is one of the most common congenital abnormalities and has a birth prevalence rate ranging from 1/1000 to 2.69/1000 amongst different parts of the world.

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