Email attributed to Curtis Carey, communications director, National Heart, Lung, and Blood Institute, May 15, 2013
Congenital heart defects are the most common type of birth defect. More information is available on the NHLBI website at: http://www.nhlbi.nih.gov/health/health-topics/topics/chd/
Regarding the statistic you referenced, our experts shared with us that:
From the AHA/AAP Scientific Statement on pulse oximetry screening, they quote a single study (from a birth defects surveillance system), which I’ve attached to this email, that says that the incidence of delayed or missed diagnosis of critical CHD is 7 in 100,000 live births. If there are approximately 4 million live births per year, this would translate into approximately 280 missed or delayed diagnoses of critical CHD per year. They note that because this was from a surveillance study with passive data collection, this probably represents an underestimate.
We hope this information is helpful.
Office of Communications
National Heart, Lung, and Blood Institute