RT Research Data T1 Linked Birth/Infant Death Data, 1989 Birth Cohort: (United States) LA English PP Erscheinungsort nicht ermittelbar PB [Verlag nicht ermittelbar] YR 1995 UL https://krimdok.uni-tuebingen.de/Record/1902797922 AB This data collection consists of three data files, which can be used to determine infant mortality rates. The first file provides linked records of live births and deaths of children born in the United States in 1989 (residents and nonresidents). This file is referred to as the "Numerator" file. The second file consists of live births in the United States in 1989 and is referred to as the "Denominator-Plus" file. Variables include year of birth, state and county of birth, characteristics of the infant (age, sex, race, birth weight, gestation), characteristics of the mother (origin, race, age, education, marital status, state of birth), characteristics of the father (origin, race, age, education), pregnancy items (prenatal care, live births), and medical data. Beginning in 1989, a number of items were added to the U.S. Standard Certificate of Birth. These changes and/or additions led to the redesign of the linked file record layout for this series and to other changes in the linked file. In addition, variables from the numerator file have been added to the denominator file to facilitate processing, and this file is now called the "Denominator-Plus" file. The additional variables include age at death, underlying cause of death, autopsy, and place of accident. Other new variables added are infant death identification number, exact age at death, day of birth and death, and month of birth and death. The third file, the "Unlinked" file, consists of infant death records that could not be linked to their corresponding birth records. K1 Birth K1 birth rates K1 birth records K1 causes of death K1 death records K1 infant mortality K1 live births K1 medical records K1 Parents K1 Pregnancy K1 Prenatal Care K1 reproductive history K1 vital statistics K1 Forschungsdaten DO 10.3886/ICPSR06631.v1