title: Customization of SAPS II for the assessment of severity in Italian ICU patients. ARCHIDIA. Archivio Diagnostico.
abstract: BACKGROUND
  To assess the accuracy of SAPS II on the Italian population and to perform a customization of the model.
  
  
  METHODS
  observational prospective study.
  
  
  METHODS
  24 participating centers. 6794 patients out of 9185 enrolled in the cohort study.
  
  
  METHODS
  the performance of SAPS II was assessed with calibration and discrimination. In the case of standard model not fitting the data, new logistic regression equation has been calculated using Archidia database.
  
  
  RESULTS
  SAPS II showed a good discrimination, but a bad calibration. The new logit has been calculated on the population examined in 1995 and successively tested on the population collected during 1996. In both samples discrimination and calibration results were good.
  
  
  CONCLUSIONS
  Our customized model reaches a high standard in calibration and discrimination. We suggest this model for future application in Italian ICU.
authors.affiliation: Servizio di Anestesia e Rianimazione, Ospedale Maggiore Policlinico, IRCCS, Milano. asici@tin.it
authors.forename: A
authors.initials: A
authors.lastname: Sicignano
authors.forename: D
authors.initials: D
authors.lastname: Giudici
mesh_terms: D002138:Calibration; D003422:Critical Care / Q000592:standards*; D016208:Databases, Factual; D006801:Humans; D007558:Italy; D016015:Logistic Models; D008875:Middle Aged; D012720:Severity of Illness Index