1. National Center for Health Statistics DCC CENTERS FOR DISEASE CONTROL AND PREVENTION Women’s Health Data in the National Survey of Family Growth (NSFG) Anjani Chandra, Ph.D. (AChandra@cdc.gov)

2. NSFG - purposes Help to explain birth certificate data Collect periodic data on the “intermediate variables” related to fertility & reproductive health in the U.S. Enable demographic & public health research in these areas

3. Social factors Intercourse variables: Intermediate variables Timing of first intercourse Percent of women who ever had intercourse Time spent in marriage (separation, divorce) Frequency of intercourse Fertility (live births) Race/ethnicity Religion Labor force participation Education Income Access to health care Family background Community environment (economic, social, etc.) Pregnancy outcome (gestation) variables: Miscarriage and stillbirth Induced abortion Conception variables: Contraceptive use Sterilization Infertility

4. Uses of NSFG data “Snapshot” of U.S. fertility, family formation, and reproductive health Track national health objectives e.g., Healthy People 2010 Family Planning, MCH, and HIV/STD Objectives Evaluate health & social policies Research

5. NSFG - sample design Nationally representative sample of women Civilian non-institutionalized population of women 15-44 Probability sample; multistage, stratified, cluster design; 8-10,000 women per Cycle 6 Cycles so far (1973, 1976, 1982, 1988, 1995, 2002) 1988 & 1995 samples based on NHIS

6. Summary of Women’s Health Data in 2002 NSFG

7. Complete Pregnancy History For pregnancies: Date, outcome, gest. length, wantedness of each For all recent (non-abortion) pregnancies: Smoking during pregnancy 1 st prenatal care visit For live births: Birth weight and sex (regardless of date of birth) Payment for delivery and maternity leave (recent births) Breastfeeding (children 18 and under)

8. Sexual Experience First intercourse; characteristics of first partner Numbers of sexual partners Lifetime; last 12 months Partner history (last 12 months)

9. Contraceptive History Method use for any reason Methods ever used First method used and method used at 1 st sex Partner-specific method use (3 most recent in last 12 mos) Month-by-month method calendar for last 3 years Method use preceding pregnancies

10. Sterilization and Infertility Sterilization operations: type, date, reasons, reversals 12-month infertility Impaired fecundity Nonsurgical sterility Subfecundity 36-month infertility

11. Health Services Family planning services Infertility & miscarriage services Other medical services Focus on use of Title X Clinics Focus on last 12 months

12. Reproductive Health Pelvic Inflammatory Disease Other reproductive health-related conditions & behaviors Diabetes (preg-related or other) Hypertension (preg-related or other) HIV testing

13. Audio CASI Pregnancy re-reporting Cigarette, alcohol, and other drug use Forced sexual intercourse (18-44 only) Other types of sex and numbers of sexual partners Same-sex partners Sexual orientation & attraction Sexually transmitted infections Other sensitive items related to sexual behavior & STD/HIV risk

14. Public Use Data Files  Cycles 1 - 5 are currently available  Files available for Cycle 6 will include o Female file o Pregnancy file o Male file  Web-based documentation for Cycle 6 will include o User’s Guide o Codebook o Questionnaires

15. Restricted Use Data Files:  Omitted Items File (mainly Audio CASI data)  Contextual Data Files (community characteristics for 2000 & 2002 addresses; 4 levels of aggregation)

16. For further information on NSFG (including Cycle 6 PUF release): http://www.cdc.gov/nchs/nsfg.htm http://www.cdc.gov/nchs/r&d/rdc.htm Contextual data access for Cycle 5 NSFG-NHIS linked analysis (Cycles 4 & 5) Restricted-use files for Cycle 6 Summary reports on 1995 NSFG (similar reports planned for Cycle 6) Series 23, #19 (Findings) Series 1, #36 (Methodology, field operations) Series 2, #124 (Sample design, variance estimation, imputation)