Background: The North Carolina Early Pregnancy Study (EPS) was held from 1982 to 1986. Women who were trying to get pregnant took part in the study. They collected urine samples. They kept diaries. They filled out surveys. They answered questions about their partners. They were asked about their drug use. Data about air pollution and other exposures were also collected. A follow-up study was held from 2010 to 2011. Researchers want to use the data and samples to study factors that affect reproductive success. Objective: To examine behavioral and environmental exposures and reproductive health, such as menstrual cycles, conception, pregnancy loss, and pregnancy outcomes. Eligibility: The 221 healthy women age 21-42 who were planning to get pregnant and took part in the 1982-86 North Carolina EPS at the time they stopped using all birth control. A 2010-11 follow-up included 173 of these women. Design: This study uses existing data. No new data will be collected in this study. Stored urine samples may be used. Data from surveys and other sources will be used. All of the women who gave data and samples will be included. Electronic data is held in secure databases. The data is kept on computers that are password protected. Hard-copy data are stored in locked file cabinets. The study will take place at more than one site. Data will be shared with groups outside the NIH.
Age range
21 Years – 42 Years
Sex
FEMALE
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Time-to-pregnancy
Timeframe: Prospectively measured