The causation of congenital malformation is receiving increased study. In Canada,
epidemiologic surveys are being planned, based upon the institution of Provincial Registries …

Data validity is a fundamental problem in epidemiology. An objective of birth defect registers
is the collection of high quality data, often from a number of sources, for use in …

11,584 consecutive live-born babies in the Ostetric Clinic of Florence in the years 1975 and
1976 were examined for the presence of congenital heart disease. Diagnosis was made by …

An effort was made to identify all infants born with a congenital cardiac defect in 1981 in
Sweden by using four different registries: the Swedish Registry of Congenital Malformations …

STUDY OBJECTIVE--The aim was to make an epidemiological study of major congenital
heart defects and to make comparisons between groups of heart defects regarding different …

• In an ongoing population-based study of congenital cardiovascular malformations in the
Baltimore–Washington, DC, area, 1527 affected infants were ascertained from multiple …

This study presents a unique approach to the problem of estimating prevalence of
congenital heart disease. A master file of 10,588 children who received care for congenital …

MAJOR FLUCTUATIONS HAVE BEEN REPORTED concerning the prevalence of congenital
heart malformations at birth. Figures quoted range from 2.10 per 1,000 live births in New …

To analyze complex and noncomplex cardiac malformations regarding prevalence and in
relation to demographic variables, we pooled data on infants (age 1 year or younger) with …

INFORMATION on the" natural history" of congenital cardiac malformations is difficult to
obtain and may have very little meaning for the statistician. One is aware that the facts …