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ABSTRACT: Objective
To provide female age-related estimates of fecundity and incidence of infertility by history of prior pregnancy among women 30-44 years of age.Design
Prospective, time-to-pregnancy cohort study.Setting
Not applicable.Patient(s)
Women, between 30 and 44 years of age, attempting to conceive for ≤3 months, and no known history of infertility, polycystic ovarian syndrome (PCOS), or endometriosis.Intervention(s)
Not applicable.Main outcome measure(s)
Fecundability and incidence of infertility.Result(s)
Compared to women aged 30-31 years, fecundability was reduced by 14% in women 34-35 years of age (fecundability ratio [FR] 0.86, 95% confidence interval [CI] 0.68-1.08), 19% in women 36-37 years of age (FR 0.81, 95% CI 0.60-1.08, 30% in women 38-39 years of age (FR 0.70, 95% CI 0.48-1.01), 53% in women 40-41 years of age (FR 0.47, 95% CI 0.28-0.78), and 59% in women 42-44 years of age (FR 0.39, 95% CI 0.16-0.93). Fecundability did not differ between women aged 30-31 years and 32-33 years. In general, fecundability and cumulative probability of pregnancy was lower for women who had never had a prior pregnancy.Conclusion(s)
Women experience a significant reduction in fecundity and increase in the probability of infertility in their late thirties. At any age >30 years, women who have never conceived have a lower probability of achieving a pregnancy.Clinical trial registration number
NCT01028365.
SUBMITTER: Steiner AZ
PROVIDER: S-EPMC4893975 | biostudies-literature | 2016 Jun
REPOSITORIES: biostudies-literature
Steiner Anne Z AZ Jukic Anne Marie Z AM
Fertility and sterility 20160305 6
<h4>Objective</h4>To provide female age-related estimates of fecundity and incidence of infertility by history of prior pregnancy among women 30-44 years of age.<h4>Design</h4>Prospective, time-to-pregnancy cohort study.<h4>Setting</h4>Not applicable.<h4>Patient(s)</h4>Women, between 30 and 44 years of age, attempting to conceive for ≤3 months, and no known history of infertility, polycystic ovarian syndrome (PCOS), or endometriosis.<h4>Intervention(s)</h4>Not applicable.<h4>Main outcome measure ...[more]