title: Ongoing pregnancy rates in in vitro fertilization are not dependent on the physician performing the embryo transfer.
abstract: OBJECTIVE
  To analyze the influence of the factor of the physician performing the ET with a standardized procedure on the ongoing pregnancy rates in an IVF-ET program.
  
  
  METHODS
  Prospective observational study.
  
  
  METHODS
  Tertiary university hospital.
  
  
  METHODS
  Subfertile women with an IVF indication.
  
  
  METHODS
  None.
  
  
  METHODS
  Ongoing pregnancy.
  
  
  RESULTS
  Six physicians performed 977 ETs. Ongoing pregnancy rates ranged from 19.1% to 29.0%, with an average rate of 23.1%. Logistic regression analysis revealed that physician is not a statistically significant variable. Differences between the pregnancy rates achieved by the physicians are within the limits of random variation.
  
  
  CONCLUSIONS
  The probability of success in IVF is not dependent on the physician, provided the transfer procedure is standardized.
authors.affiliation: Department of Obstetrics, Gynecology and Reproductive Medicine, Vrije Universiteit Medical Centre, Amsterdam, The Netherlands. h.vanweering@vumc.nl
authors.forename: Hans G I
authors.initials: HG
authors.lastname: van Weering
authors.forename: Roel
authors.initials: R
authors.lastname: Schats
authors.forename: Joseph
authors.initials: J
authors.lastname: McDonnell
authors.forename: Peter G A
authors.initials: PG
authors.lastname: Hompes
mesh_terms: D000328:Adult; D004624:Embryo Transfer; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D016015:Logistic Models; D010820:Physicians / Q000706:statistics & numerical data*; D011247:Pregnancy; D018873:Pregnancy Rate; D011446:Prospective Studies; D018456:Reproductive Medicine / Q000706:statistics & numerical data*