Oral clefts: A significant association with maternal and paternal age, abortion rate, and parity was found

1: J Oral Sci. 2008 Jun;50(2):123-9.
Oral clefts: a retrospective study of prevalence and predisposal factors in the State of Mexico.González BS, López ML, Rico MA, Garduño F.
Laboratory of Oral Pathology, Research Center, Autonomous University of the State of Mexico.

The purpose of this study was to up-date the records concerning oral clefts (OCs) encountered at the Child Hospital of the Maternal Infantile Institute of the State of México, and to examine the association of predisposing factors. A retrospective study of the medical records of patients generated over a 5-year period was carried out. A total of 835 files were reviewed, representing 504 boys and 331 girls. The studied variables were the type of oral clefts and predisposing factors. Kendal correlations at P