title: Prognostic value of the 2009 FIGO staging for endometrial cancer: an illustration of the E3N cohort.
abstract: OBJECTIVE
  To compare the prognostic values of the 1988 and 2009 International Federation of Gynecology and Obstetrics (FIGO) classifications for endometrial cancer.
  
  
  METHODS
  From 1990 to 2008, patients undergoing surgery for endometrial cancer were extracted from the French prospective "Etude Epidémiologique auprès de femmes de l'Education Nationale" cohort study. Inclusion criteria were as follows: (1) an available detailed histologic report of primary surgical procedure and (2) available cause and date of death. Concordance indexes for the 1988 and 2009 FIGO classifications were compared.
  
  
  RESULTS
  Three hundred ninety-seven patients fulfilled the inclusion criteria. The concordance index for the 2009 FIGO classification was lower than that of the 1988 FIGO classification (0.76 vs 0.77, respectively).
  
  
  CONCLUSIONS
  In this study, the 1988 FIGO classification for endometrial cancer is at least as accurate as the 2009 FIGO classification for predicting endometrial cancer mortality.
authors.affiliation: Department of Obstetrics and Gynaecology, APHP Hôpital Bichat, Paris, France. martin.koskas@wanadoo.fr
authors.forename: Martin
authors.initials: M
authors.lastname: Koskas
authors.forename: Nathalie
authors.initials: N
authors.lastname: Chabbert-Buffet
authors.forename: Sofiane
authors.initials: S
authors.lastname: Bendifallah
authors.forename: Dominique
authors.initials: D
authors.lastname: Luton
authors.forename: Françoise
authors.initials: F
authors.lastname: Clavel-Chapelon
authors.forename: Roman
authors.initials: R
authors.lastname: Rouzier
mesh_terms: D000368:Aged; D002277:Carcinoma / Q000175:diagnosis* / Q000453:epidemiology / Q000473:pathology*; D015331:Cohort Studies; D016889:Endometrial Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000473:pathology*; D005178:Faculty / Q000706:statistics & numerical data; D005260:Female; D005602:France / Q000453:epidemiology; D006176:Gynecology / Q000379:methods; D006801:Humans; D008495:Medical Oncology / Q000379:methods; D008875:Middle Aged; D009367:Neoplasm Staging / Q000379:methods*; D009774:Obstetrics / Q000379:methods; D011237:Predictive Value of Tests; D011379:Prognosis