National Survey of Family Growth - (2006-2010) Female Respondent File

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The National Survey of Family Growth (NSFG) is designed and administered by the National Center for Health Statistics (NCHS), an agency of the U.S. Department of Health and Human Services, in collaboration with several other federal agencies (see Acknowledgements). The NSFG has been conducted seven times since 1973. The purpose of the survey is to produce national estimates of:

-Factors affecting pregnancy, including sexual activity, contraceptive use, and infertility;
-The medical care associated with contraception, infertility, and childbirth;
-Factors affecting marriage, divorce, cohabitation, and adoption;
-Adoption and caring for nonbiological children
-Father involvement behaviors, and
-Men's and women's attitudes about sex, childbearing, and marriage.

The survey contains key religion variables that may relate to these topics. The survey results are used by the U.S. Department of Health and Human Services and other research and policy organizations to plan health services and health education programs, and to do statistical studies on the topics listed above.

For the 2006-2010 NSFG, statistical design, interviewing, and data processing have been conducted by the University of Michigan's Institute for Social Research (ISR), under a contract with the National Center for Health Statistics (NCHS), in collaboration with the NCHS NSFG team led by William Mosher (Project Officer).

The 2006-2010 NSFG survey represents a shift from periodic surveys to continuous interviewing, with interviews being conducted 48 weeks of every year for four years. This public use data file contains all interviews conducted from June 2006-June 2010. In-person interviews were conducted with 12,279 women 15-44 years of age and 10,403 men 15-44 years of age for a total sample size of 22,682.
Data File
Cases: 12,279
Variables: 3,448
Weight Variable: WGTQ1Q16, FINALWGT30, WGTQ1Q8, WGTQ5Q16, QGTQ9Q16
These 2006-2010 NSFG data are based on a nationally representative sample of the household population aged 15-44. Data users should understand how to account for the design when doing their analyses. The 2006-2010 NSFG design was a significant change in the design of the survey. Please refer to the NSFG 2006-2010 User's Guide for more information.

In the NSFG, Hispanics, blacks, teens, and women were selected at higher rates than others in the 15-44 age group. "Sampling weights" adjust for these different sampling rates, as well as for response rates and coverage rates, so that accurate national estimates can be made from the sample. Because weights vary widely for 206-2010 NSFG respondents, we strongly recommend using the weights in all analyses. Using the weights also will permit replication of the nationally representative estimates that appear in published NCHS reports.

There are five weights provided in the 2006-2010 public use files. The weight WGTQ1Q16 is the main weight to be used in most analyses involving all 16 quarters of data. The four additional weights are provided for analyses of questions that were added at different times in data collection or to compare cases that were collected in the first two years of data collection (quarters one-eight) with cases collected in the last two years of data collection (quarters nine-16).
Data Collection
Date Collected: June 2006 - June 2010
Original Survey (Instrument)
National Survey of Family Growth
Funded By
National Center for Health Statistics (NCHS)
Collection Procedures
The interviews were conducted by trained female interviewers using laptop, or notebook, computers - a procedure called computer-assisted personal interviewing (CAPI). The interviews for women averaged 80 minutes; the interviews for men averaged 60 minutes. The response rate was 77 percent overall - 78 percent for females, and 77 percent for male and female teenagers.
Sampling Procedures
The sample is based on a nationally representative sample of the household population aged 15-44. The NSFG 2006-2010 includes oversamples for Hispanics, blacks, teens, and women. See the related methodological publications listed below, under the ARDA's related publications section, for more information.
Principal Investigators
National Center for Health Statistics (NCHS)
Related Publications
NSFG 2006-2010 User's Guide

Full list of related publications

Methodological publications:

Groves RM, Mosher WD, Lepkowski J, Kirgis NG. (2009) Planning and development of the continuous National Survey of Family Growth. National Center for Health Statistics. Vital Health Stat 1(48).

Lepkowski JM, Mosher WD, Davis KE, Groves RM, Van Hoewyk J. (2010) The 2006-2010 National Survey of Family Growth: Sample design and analysis of a continuous survey. National Center for Health Statistics. Vital Health Stat 2(150).

"Appendix 5: Summary of NSFG Questionnaire Changes - Years 1, 2, and 3 of Continuous NSFG." From:2006-2010 NSFG User's Guide.
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