NEW YORK (Reuters Health) - Mothers-to-be who are obese during the first trimester of pregnancy are more likely than normal-weight women to have an infant with a cleft lip or cleft palate, according to a study in Sweden.Drs. Marie Cedergren and Bengt Kallen analyzed data from Swedish medical health registries that listed maternal height and weight in early pregnancy and the presence of birth defects in offspring. Their study compared 1422 women who had infants with orofacial clefts with all women -- nearly a million -- who delivered between 1992 and 2001.
