title: Selective drop-out in successive in-vitro fertilization attempts: the pendulum danger.
abstract: Success rates from in-vitro fertilization (IVF) in the long term are dependent on selection procedures with regard to continuation into further IVF episodes. Publications on success rates in successive episodes will give incentives to adapt selection criteria, but if these publications do not deal explicitly with patient selection, the adaptations might change their direction every time: the pendulum danger.
authors.affiliation: Institute for Medical Technology Assessment, University of Limburg, Maastricht, The Netherlands.
authors.forename: G
authors.initials: G
authors.lastname: Haan
authors.forename: R E
authors.initials: RE
authors.lastname: Bernardus
authors.forename: H M
authors.initials: HM
authors.lastname: Hollanders
authors.forename: B A
authors.initials: BA
authors.lastname: Leerentveld
authors.forename: F M
authors.initials: FM
authors.lastname: Prak
authors.forename: N
authors.initials: N
authors.lastname: Naaktgeboren
mesh_terms: D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D010352:Patient Dropouts / Q000706:statistics & numerical data*; D011247:Pregnancy; D011379:Prognosis; D011446:Prospective Studies; D012044:Regression Analysis