Topic/focus: Demographics Year(s): 1989 - 1995, 1995 - 1997, 1995 - 2000 Source: National Center for Health Statistics Study and sample characteristics: Raw data from vital records Universe: United States births, infant deaths, and fetal deaths that occurred as part of a twin, triplet, or quadruplet delivery Variables: Approximately 260 Access: Available via the EDRC Cost: Check with EDRC Coordinator Key web links: CDC: National Vital Statistics System Primary Institutional Contact: EDRC Coordinator (tchelius@mcw.edu)
Summary: The Matched Multiple Birth Data Set contains data on sets of multiple deliveries--specifically, twin, triplet, and quadruplet deliveries--that occurred in the U.S. Sets may be composed of any combination of live births and fetal deaths. Data are derived from the National Center for Health Statistics' Natality, Fetal Death, and Linked Birth/Infant Death databases. Thus, the Matched Multiple Birth Data Set contains information from birth, fetal death, and infant death certificates. Fetal and infant data elements include sex, birth weight, Apgar score, gestational age, set birth order, and gestational age. Age and race variables are available for mothers and fathers; additional maternal demographic and health variables are also available. The database also contains medical encounter data, including place of delivery, type of attendant at delivery, and hospital and patient status at time of death.