20-year survival of children born with congenital anomalies: a population-based study and Congenital Heart Anomalies Mortality Risk With No Diagnosis or Care Estimates

Data from the two datasets were combined to generate a pooled mortality risk for congenital heart disease. For GBD 2015, literature values of SMR in high and low NMR settings were interpolated based on national NMR and converted to excess mortality data for each age-location-sex-year for congenital heart anomalies.