Correlation Engine 2.0
Clear Search sequence regions

  • adult (1)
  • birth rate (1)
  • cohort (2)
  • cycles ovarian (1)
  • embryo transfer (1)
  • embryos (1)
  • female (3)
  • humans (1)
  • live birth (8)
  • odds ratios (5)
  • oocyte (1)
  • patients (5)
  • pregnancy (7)
  • risk factors (1)
  • vitro (2)
  • Sizes of these terms reflect their relevance to your search.

    To investigate the impact of prolonged ovarian stimulation on pregnancy outcomes in IVF cycles with fresh day 3 ET. Retrospective cohort study. University-affiliated center. All patients initiating their first IVF cycle with fresh day 3 ET. Prolonged ovarian stimulation was defined as a duration of more than two standard deviations (95th percentile) for the study cohort (i.e., >13 days). None. Live birth rate was considered the primary outcome and was compared between patients undergoing ovarian stimulation for ≤13 days and >13 days. Odds ratios (OR) with 95% confidence intervals (CI) for all pregnancy outcomes after day 3 ET were calculated. The OR for live birth was adjusted using logistic regression. A total of 6,410 and 339 patients underwent ovarian stimulation for ≤13 days and >13 days, respectively. There were no differences in the demographics or mean number of day 3 embryos transferred between the two groups. Ovarian stimulation ≤13 days was associated with increased odds of clinical pregnancy (OR 2.15, 95% CI 1.19-3.89) and live birth (OR 2.35, 95% CI 1.25-4.43). The increased odds for live birth in the ≤13-day group remained unchanged after logistic regression. Patients with clinical pregnancies in the >13-day group were younger (34.6 ± 4.91 years) compared with those who did not conceive (38.2 ± 4.72 years). Our findings suggest that ovarian stimulation ≤13 days is associated with increased odds of clinical pregnancy and live birth. In patients undergoing ovarian stimulation >13 days, younger age is associated with live birth. Copyright © 2016 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.


    Nigel Pereira, Caroline Friedman, Anne P Hutchinson, Jovana P Lekovich, Rony T Elias, Zev Rosenwaks. Increased odds of live birth in fresh in vitro fertilization cycles with shorter ovarian stimulation. Fertility and sterility. 2017 Jan;107(1):104-109.e2

    Expand section icon Mesh Tags

    Expand section icon Substances

    PMID: 27793370

    View Full Text