Monthly Vital Statistics Report, Vol. 20, No. 5, Suppplement, August 2, 1971, National Natality and Infant Mortality Surveys: 1964-66: Infant Mortality Rates by Legitimacy Status, United States, 1964-66

摘要

During 1964-66 the number of infant deaths decreased each year in the United States. At the same time, the number of live births each year also decreased but at a slower rate. This resulted in a declining infant mortality rate over the 3-year period. In 1964 the infant mortality rate was approximately 25 deaths per 1,000 live births. In 1966 the rate was approximately 24 deaths per 1,000 live births. From data published in Vital Statistics oj the United States, these overall rates are known to vary by region of residence, metropolitan status, sex, and race. Since the information collected on the birth certificate does not correspond to the information collected on the death certificate, infant mortality rates by other characteristics are not available from the registration system. The data presented here were collected in the 1964-66 National Natality Survey and in the 1964-66 National Infant Mortality Survey. These surveys created a unique opportunity to collect information which would provide national estimates of infant mortality rates cross-classified by legitimacy status.