SUMMARYWithin a prospective study of 56,109 total births, 457 youngsters have been found to have congenital heart disease. The overall incidence is 8.14/1000 total births, 8.0/1000 for the Negro and 8.3/1000 for the white. A Spontaneous closure racardiac malformations Racial relative rarity of congenital cardiac defects, and the natural history of many of these lesions, it is also not surprising that in previous studies various truncations have occurred, i.e., absence of specific lesion diagnosis, data restricted to autopsied patients, or experience limited to a single hospital. This study, while having some limitations, provides rates by specific lesion for total births (stillbirths and live births) among 56,109 whites and blacks at

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