Prevalence at birth of congenital malformations in Athens, Greece, 1955--1965.

The prevalence at birth of congenital malformations in Athens was studied in a sample of 74,390 live and stillborn infants, born to women attending a large University Maternity Hospital during 1955--1965. A total of 1534 malformed infants was identified (20.62 per 1000 newborn). The prevalence of anencephalus and spina bifida is lower in Athens than in the United Kingdom, whereas the frequency of other malformations in rather similar in the two countries.