This study is provided by ICPSR. ICPSR provides leadership and training in data access, curation, and methods of analysis for a diverse and expanding social science research community.

Natality Detail File, 2003 [United States] (ICPSR 4706)

Principal Investigator(s): United States Department of Health and Human Services. National Center for Health Statistics


This collection provides information on live births in the United States during calendar year 2003. The natality data in these files are a component of the vital statistics collection effort maintained by the federal government. Birth data is limited to births occurring in the United States to United States residents and nonresidents. Births occurring to United States citizens outside of the United States are not included in this data collection. Part 1 contains data on births occurring within the United States, while Part 2 contains data on births occurring in the United States territories of Puerto Rico, the Virgin Islands, Guam, American Samoa, and the Commonwealth of the Northern Mariana Islands. Geographic variables include the state and county in which the birth occurred, as well as the population size of the county. Other variables describe the place of delivery, who was in attendance, and medical and health data such as the method of delivery, the number of the prenatal visits, tobacco and alcohol use during pregnancy, pregnancy history, medical risk factors, and infant health characteristics. Birth and fertility rates and other statistics related to this study can be found in the National Vital Statistics Report in the codebook documentation. Demographic variables include the child's sex, birth weight, and month and year of birth, the parent's age, race, and ethnicity, as well as the mother's marital status, education level, place of residence, and place of birth.

Series: Natality Detail File Series

Access Notes

  • 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.


DS1:  United States File - Download All Files (3260.496 MB) large file
ASCII    Excel/TSV
ASCII + SAS Setup    SPSS Setup    Stata Setup   
Analyze Online:
DS2:  United States Territories File - Download All Files (54.728 MB)
ASCII    Excel/TSV
ASCII + SAS Setup    SPSS Setup    Stata Setup   
Analyze Online:

Study Description


U.S. Dept. of Health and Human Services, National Center for Health Statistics. NATALITY DETAIL FILE, 2003 [UNITED STATES]. ICPSR04706-v1. Hyattsville, MD: U.S. Dept. of Health and Human Services, National Center for Health Statistics [producer], 2004. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2008-06-18. https://doi.org/10.3886/ICPSR04706.v1

Persistent URL: https://doi.org/10.3886/ICPSR04706.v1

Export Citation:

  • RIS (generic format for RefWorks, EndNote, etc.)
  • EndNote XML (EndNote X4.0.1 or higher)

Scope of Study

Subject Terms:    alcohol consumption, birth, birth rates, birth records, fertility, fertility rates, live births, population growth, pregnancy, prenatal care, tobacco use, vital statistics

Geographic Coverage:    Alabama, Alaska, American Samoa, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Guam, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York (state), North Carolina, North Dakota, Northern Mariana Islands, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, Tennessee, Texas, United States, Utah, Vermont, Virgin Islands of the United States, Virginia, Washington, West Virginia, Wisconsin, Wyoming

Time Period:   

  • 2003

Date of Collection:   

  • 2004

Unit of Observation:    individual

Universe:    Live births in the United States during calendar year 2003.

Data Type(s):    administrative records data

Data Collection Notes:

(1) The full product suite was not released for this study due to the large size of system and transport files. (2) To protect respondent confidentiality, codes in variables UMAGERPT, FAGERPT, UFAGECOMB, MRACE1E through MRACE8E, and FRACE1E through FRACE8E were blanked. (3) According to documentation from the principal investigator, United States residents who gave birth in Guam were considered residents of Guam and were assigned a code 1 in the RESTATUS variable. (4) The CASEID variable was created for use with online analysis. (5) Variables XOSTATE, RCNTY_POP, RCITY_POP, MSA_POP, and SEX were converted from character to numeric. (6) More information on natality studies may be found via the National Center for Health Statistics Web Site.


Sample:    One-hundred percent of birth certificates in calendar year 2003.

Data Source:

official certificates of live births, and state computer records

Restrictions: In preparing the data files 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:   2008-06-17

Related Publications



Metadata Exports

If you're looking for collection-level metadata rather than an individual metadata record, please visit our Metadata Records page.

Download Statistics