An Epidemiologic Study of Orofacial Clefts in Hamedan City, Iran: A 15-Year Study

Abstract

The birth prevalence of CL/P in Hamedan City was closer to the prevalence of CL/P in the United States and Europe than Africa and the Far East. We found that the presence of cleft in parents, siblings, and other relatives; maternal drug intake; trauma; radiation; and smoking were risk factors for cleft development in newborns.