2. Patent ductus arteriosus, ~10%
3. Atrial septal defects (ASD of the fossa ovalis secundum defects), ~10%
4. Atrioventricular septal defects (endocardial cushion defects, a common atrioventricular canal)
5. Pulmonary stenosis, ^7%
6. Aortic stenosis, ^6%
7. Bicuspid aortic valves, common
8. Coarctation of aorta, ^7%
9. Mitral regurgitation, rare
10. Anomalous origin of coronary artery
The cyanotic group includes the following:
1. Tetralogy of Fallot, ^6%
2. Persistent truncus arteriosus, ^2%
3. Hypoplastic right heart includes tricuspid stenosis, pulmonary atresia with an intact ventricular septum, and Ebstein anomaly ^16%
4. 5. 6.
Total anomalous pulmonary venous connection, ~16% Critical pulmonary stenosis, ^16% D-transposition of great arteries,
16%
There are few definite differences in the incidence of some forms of CHD in different populations. There is a high proportion of subarterial VSDs in China and Japan ~35% versus 5% in Caucasians. In Malta there is an excessive incidence of tetralogy of Fallot. Aortic stenosis and coarctation are more common in Caucasians than in the black or Hispanic population in the United States.

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