First Baby Study (FBS), Pennsylvania, 2009-2014 (ICPSR 38778)

Version Date: Nov 15, 2023

Cite this study |

Principal Investigator(s):
Kristen H. Kjerulff, Pennsylvania State University. Hershey Medical Center

https://doi.org/10.3886/ICPSR38778.v1

Version V1

Slide tabs to view more

Alternate Title

FBS, 2009-2014

Summary

The First Baby Study (FBS) was a prospective cohort study designed to investigate the association between mode of delivery at first childbirth (cesarean or vaginal) and subsequent fecundity and fertility over the course of a 3-year follow-up period. Women were enrolled during pregnancy and interviewed by telephone in their third trimester. Enrolled participants were followed-up with and surveyed at 1, 6, 12, 18, 24, 30 and 36 months postpartum. Participants were enrolled in 2009 to 2011 and the last interview was conducted in 2014.

Citation

Kjerulff, Kristen H. First Baby Study (FBS), Pennsylvania, 2009-2014. Inter-university Consortium for Political and Social Research [distributor], 2023-11-15. https://doi.org/10.3886/ICPSR38778.v1

Export Citation:

  • RIS (generic format for RefWorks, EndNote, etc.)
  • EndNote

Funding

United States Department of Health and Human Services. National Institutes of Health. Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01-HD052990)

Subject Terms

Geographic Coverage

Restrictions

These data may not be used for any purpose other than statistical reporting and analysis. Use of these data to learn the identity of any person or establishment is prohibited.

Distributor(s)

Inter-university Consortium for Political and Social Research
Hide

Time Period(s)

2009 -- 2014

Data Collection Notes

  1. The variable MREC is the respondent's master record number and is present in each data file. This ID variable can be used to link the data files together. All 5 data files contain all 3,006 cases that comprise this study.

  2. The first portion of a variable name corresponds to its section and number in the questionnaire. Many variable names repeat across the multiple waves of data. The second part of the variable name contains the month designation (i.e. _6MO, _18MO, _36MO).

Hide

Study Design

Study participants were recruited from low-income clinics, obstetrician's offices, ultrasound centers, health fairs, and hospital intranet postings. Enrollment criteria sought pregnant women who were between the ages of 18 to 35, English or Spanish speaking, and planning to delivery their baby at a hospital in Pennsylvania. Prospective participants were ineligible to enroll in the study if they planned to delivery the baby at home or a birthing center not associated with a hospital, delivery of baby was prior to 35 weeks gestation, a surrogate pregnancy, or planning for the baby to be adopted. Women were recruited beginning in January 2009 through those who delivered a baby in April 2011. These women were then followed-up with 7 more times.

Time Method

Longitudinal: Panel

Universe

Pregnant women between the ages of 18 to 35 in the state of Pennsylvania.

Unit(s) of Observation

Individual

Data Type(s)

Mode of Data Collection

Description of Variables

In the baseline interview (during pregnancy) women were asked about their health history, their current pregnancy, delivery plans, their relationship status, access to healthcare, health habits, future birth desires and intentions, sociodemographic factors and psychosocial factors (including social support, stress and depression). In the 1-month postpartum interview the participants were asked about their health care utilization since the previous interview, labor and delivery, feelings about the labor and delivery, post discharge complications, health of the baby and maternal-child bonding, the health of the participant, their relationship status, plans for future childbearing, psychosocial factors (social support, stress, PTSD, and depression) and sociodemographic factors. In the 6-month interview the participants were asked about their health, sexual relations and use of birth control, their current pregnancy (if pregnant), the health of the baby and maternal-child bonding, their relationship status, future birth desires and intentions, access to healthcare, psychosocial factors (social support, stress, PTSD, and depression) and sociodemographic factors.

In the 12, 18, 24 and 30-month interviews the participants were asked the same questions as in the 6 and 12-month interviews as well as questions about any subsequent pregnancies and deliveries and the health of any new children.

In the 36-month interview the participants were asked about sexual relations and birth control, their current pregnancy (if pregnant), any subsequent pregnancies and deliveries and the health of any new children, the development of their first child, relationship status, future birth desires and intentions, and sociodemographic factors.

Hide

Original Release Date

2023-11-15

Version History

2023-11-15 ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Checked for undocumented or out-of-range codes.

Hide

Notes

  • The public-use data files in this collection are available for access by the general public. Access does not require affiliation with an ICPSR member institution.

Sign up for our newsletter