Atrial septal defect ostium secundum epidemiology and demographics


 * Associate Editors-In-Chief: Priyamvada Singh, M.B.B.S. mailto:psingh@perfuse.org; ; Assistant Editor-In-Chief: Kristin Feeney, B.S. mailto:kfeeney@perfuse.org

For a full discussion on atrial septal defects click here.

Overview
Ostium secundum atrial septal defects are the commonest type of atrial septal defect. It forms approximately 75% of all the atrial septal defects and accounts for 7% of all congenital heart defects

Age

 * It forms 30-40% of all congenital heart disease in patients aged 40 or older.

Sex
A female preponderance, with a female-to-male ratio of 2:1 has been found in the studies