Comparison of Pregnancy, Implantation, and Multiple Gestation Rates for Day 3 Versus Day 5 Embryo Transfers

Stephanie J. Estes, Linda M. Hoover, Scott E. Smith, Stephen G. Somkuti, Jay S. Schinfeld, Larry I. Barmat

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Purpose: To compare pregnancy, implantation, and multiple gestation rates resulting from day 3 and day 5 embryo transfers after in vitro fertilization emphasizing a subset of patients who met criteria for day 5 transfer but elected to undergo day 3 transfer. Method: A retrospective analysis of day 3 and day 5 embryo transfers from January 2001 to June 2002 were evaluated in a community teaching hospital setting. A total of 331 patients ≤40 years old were included. Using Student's t test, 2χtest, and Fisher's exact test, we compared the pregnancy, implantation, and multiple gestation rates. Results: Pregnancy, implantation, and multiple gestation rates were not significantly different between the subgroup who met criteria for day 5 embryo transfer but elected day 3 transfer. There was no significant difference between similar parameters in the overall comparison of day 3 versus day 5 embryo transfers. Conclusions: Blastocyst transfers have similar multiple gestation rates, pregnancy rates, and implantation rates when compared to day 3 embryo transfers.

Original languageEnglish (US)
Pages (from-to)409-412
Number of pages4
JournalJournal of Assisted Reproduction and Genetics
Volume20
Issue number10
DOIs
StatePublished - Oct 1 2003

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All Science Journal Classification (ASJC) codes

  • Reproductive Medicine
  • Genetics
  • Obstetrics and Gynecology
  • Developmental Biology
  • Genetics(clinical)

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