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Linked Birth/Infant Death Data, 1991 Birth Cohort: [United States] (ICPSR 6629)
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 1991 (residents and nonresidents). This file is referred to as the "Numerator" file. The second file consists of live births in the United States in 1991 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.
Data in this collection are available only to users at ICPSR member institutions. Please log in so we can determine if you are with a member institution and have access to these data files.
WARNING: This study is over 150MB in size and may take several minutes to download on a typical internet connection.
U.S. Dept. of Health and Human Services, National Center for Health Statistics. LINKED BIRTH/INFANT DEATH DATA, 1991 BIRTH COHORT: [UNITED STATES]. Hyattsville, MD: U.S. Dept. of Health and Human Services, National Center for Health Statistics [producer], 1995. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 1995. http://doi.org/10.3886/ICPSR06629.v1
Persistent URL: http://doi.org/10.3886/ICPSR06629.v1
Scope of Study
Subject Terms: birth, birth rates, birth records, causes of death, death records, infant mortality, live births, medical records, parents, pregnancy, prenatal care, reproductive history, vital statistics
Geographic Coverage: United States
Per agreement with NCHS, ICPSR distributes the data file(s) and technical documentation in this collection in their original form as prepared by NCHS.
birth and death certificates
Restrictions: In preparing the data tape(s) for this collection, the National Center for Health Statistics (NCHS) has removed direct identifiers and characteristics that might lead to identification of data subjects. As an additional precaution NCHS requires, under Section 308(d) of the Public Health Service Act (42 U.S.C. 242m), that data collected by NCHS not be used for any purpose other than statistical analysis and reporting. NCHS further requires that analysts not use the data to learn the identity of any persons or establishments and that the director of NCHS be notified if any identities are inadvertently discovered. ICPSR member institutions and other users ordering data from ICPSR are expected to adhere to these restrictions.
Original ICPSR Release: 1995-12-20
- 2006-01-18 File CB6629.ALL.PDF was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads.
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