Abstract
The incidence and relative frequencies of congenital heart disease in school children were estimated by a field investigation. All the primary and the secondary school children in Otsu, a middle city of Japan, were investigated a few consecutive years for this study. In all 26, 177 children were examined, of whom 85 had congenital heart disease, giving an over-all rate of 3.2 per 1000. The most common malformation was ventricular septal defect, after which atrial septal defect and patent ductus arteriosus followed. An incidence of 3.2 per 1000 is intermediate among the previous results in these age group.
