TABLE 2

Distribution of Congenital Heart Defects Diagnosed Among 2588 Singleton Live-Born Infants With Down Syndrome, Born in Sweden 1992–2012

n% of Infants% of Defects
Any congenital heart defect
 No120146.4
 Yes138753.6100.0
Type of congenital heart defecta
 AVSD58222.542.0
 Aortic arch abnormality903.56.5
 Tetralogy of Fallot361.42.6
 Transposition of the great arteries261.01.9
 Valve defects351.42.5
 VSD30711.922.1
 ASD2248.716.2
 Patent ductus arteriosus702.75.0
 Others170.71.2
  • a Congenital heart defects were grouped into 4 main categories: complex defects (AVSD, aortic arch abnormalities, tetralogy of Fallot, transposition of the great arteries, single ventricular hearts); valve defects (aortic, pulmonary, and mitral-tricuspid valve defects); shunt defects (isolated VSD, isolated ASD, and isolated patent ductus arteriosus); others. See details in Methods.