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Time to pregnancy--a model and its application.

J L Boldsen1, I Schaumburg

  • 1Department of Social Medicine, University of Odense, Denmark.

Journal of Biosocial Science
|April 1, 1990
PubMed
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Biological fertility is better measured by time to pregnancy, not just births. Multiparous women, having had previous births, conceive faster than first-time mothers (primiparous).

Area of Science:

  • Reproductive biology
  • Human fertility studies
  • Demographic research

Background:

  • Traditional measures of biological fertility, such as the number of children born, are insufficient in industrialized nations.
  • Time to pregnancy (TTP) offers a more sensitive metric for assessing fertility.
  • Collecting TTP data in large populations provides valuable insights into reproductive health.

Purpose of the Study:

  • To introduce a statistical model for analyzing time to pregnancy data.
  • To evaluate the utility of TTP as an alternative measure of fertility.
  • To identify factors influencing conception speed.

Main Methods:

  • Development of a statistical model to condense information from TTP data.
  • Application of the model to analyze several large datasets of reported waiting times for pregnancy.
Keywords:
Age FactorsBirth IntervalsDemographic AnalysisDemographic FactorsDenmarkDeveloped CountriesEuropeFertilityFertility MeasurementsFertility Pattern MethodFirst Birth IntervalsFirst Pregnancy IntervalsModels, TheoreticalNorthern EuropePopulationPopulation CharacteristicsPopulation DynamicsPregnancy IntervalsResearch MethodologyScandinavia

Related Experiment Videos

  • Comparison of conception rates between women with different parity statuses.

    • Main Results:

    • The proposed model effectively fits large samples of TTP data.
    • Multiparous women demonstrate a shorter time to pregnancy compared to primiparous women.
    • This finding highlights the influence of prior childbirth experience on conception speed.

    Conclusions:

    • Time to pregnancy is a more informative measure of fertility than birth numbers in developed societies.
    • The developed model provides a robust method for analyzing TTP data.
    • Parity is a significant factor affecting the speed of conception, with multiparous women conceiving more rapidly.