Blog
About

  • Record: found
  • Abstract: found
  • Article: not found

Body mass index and delayed conception: a European Multicenter Study on Infertility and Subfecundity.

American Journal of Epidemiology

epidemiology, Age Distribution, Body Mass Index, Confidence Intervals, Europe, Female, Fertilization, Humans, Infertility, Female, Adult, etiology, Obesity, complications, Odds Ratio, Pregnancy, Proportional Hazards Models, Smoking, adverse effects, Time Factors

Read this article at

ScienceOpenPubMed
Bookmark
      There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

      Abstract

      Obesity has become a health problem in affluent societies, but few studies have investigated its effect on subfertility. Previous studies were based on select groups of women, focused mainly on ovulatory dysfunctions, and yielded controversial results. The authors evaluated the effect of body mass index on delayed conception by using a European population-based survey of pregnant women from five countries. Delayed conception was defined as a time to pregnancy that exceeded 9.5 months of unprotected intercourse. During 1992, 4,035 pregnant women from well-defined geographic areas were recruited consecutively at antenatal clinics or hospitals after at least 20 weeks of gestation. For women smokers, after adjustment for sociodemographic, biologic, and lifestyle-related factors, there was a strong association between obesity (body mass index of > or =30 kg/m2) and delayed conception (odds ratio = 11.54, 95% confidence interval: 3.68, 36.15) and also an increased risk for women whose body mass index was <20 kg/m2 (odds ratio = 1.70; 95% confidence interval: 1.01, 2.83). The same analysis conducted for women nonsmokers showed no association. The authors concluded that for women who achieve a clinically detectable pregnancy, those who are underweight or obese require a longer time to conceive only if they also smoke.

      Related collections

      Author and article information

      Journal
      10873131

      Comments

      Comment on this article