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|Access to Files:||Data and Documentation|
|Title:||Vital Statistics: Linked Birth/Infant Death Data, 1997 Birth Cohort: [United States]|
|Primary Investigator(s):||United States Department of Health and Human Services. National Center for Health Statistics (NCHS)|
|Abstract:||The Linked Birth/Infant Death Data Set consist of three separate data files. The denominator files (such as Den85.dat.Z) contain all births occuring in 1997. The numerator files (such as Num85.dat.Z) include deaths to all infants born in 1997 for which the death certificate can be linked to a birth certificate in the denominator file. The unlinked files (such as Unl85.dat.Z) include death certificate information for all the infant deaths that cannot be linked to a birth in the corresponding birth file. The numerator/denominator set can be used to compute infant mortality rates. |
Demographic data include variables such as date of birth, age and educational attainment of parents, marital status, live-birth order, race, sex, and geographic area. Health data include items such as birth weight, gestation, prenatal care, attendant at birth, and Apgar score. Geographic data includes state, county, and city of mother's residence and state and county of the place of birth. City and county data are available only for areas with a population of 250,000 or more.