The authors estimated the prevalence of heart malformation during the first year of life, using
five data sets with varying degrees of completeness from two English regional health …

We studied the yearly occurrence of isolated cardiovascular malformations in liveborns for
the period 1981–1988 in Maryland and the District of Columbia. We used Poisson …

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 …

All infants and children born alive with documented congenital heart disease (excluding
those weighing less than 2500 g at birth with a diagnosis of patent arterial duct) within the …

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

To the authors' knowledge, attributable fractions for cardiac malformations have not been
reported before. The Baltimore-Washington Infant Study published factors associated with …

The paper reports a joint study made by five member programs of the International
Clearinghouse for Birth Defects Monitoring Systems. Three specific heart malformations …

All stillborn and all deceased children were autopsied during a 27-year period in a given
territory with some 1,220,000 inhabitants. Of the 3969 stillborn children, 81 (2.1%) had a …

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 …

The aim of this study was to investigate various putative risk factors in a county in Sweden,
described as having a 28% increased prevalence of cardiovascular malformations, and to …