OBJECTIVE: To evaluate the SAPS 3 score predictive ability of hospital mortality in a large external validation cohort. DESIGN: Prospective observational study. SETTING AND PATIENTS: A total of 28,357 patients from 147 Italian ICUs joining the Project Margherita national database of the Gruppo italiano per la Valutazione degli interventi in Terapia Intensiva (GiViTI). INTERVENTIONS: None. MEASUREMENT: Evaluation of discrimination through ROC analysis and of overall goodness-of-fit through the Cox calibration test. MAIN RESULTS: Although discrimination was good, calibration turned out to be poor. The general and the South-Europe Mediterranean countries equations overestimated hospital mortality overall (SMR values 0.73 with 95% CI 0.72-0.75 for both equations) and homogeneously across risk classes. Overprediction was confirmed among important subgroups, with SMR values ranging between 0.47 and 0.82. CONCLUSIONS: The result strictly supported by our data is that the SAPS 3 score calibrates inadequately in a large sample of Italian ICU patients and thus should not be used for benchmarking, at least in Italian settings.
OBJECTIVE: To evaluate the SAPS 3 score predictive ability of hospital mortality in a large external validation cohort. DESIGN: Prospective observational study. SETTING AND PATIENTS: A total of 28,357 patients from 147 Italian ICUs joining the Project Margherita national database of the Gruppo italiano per la Valutazione degli interventi in Terapia Intensiva (GiViTI). INTERVENTIONS: None. MEASUREMENT: Evaluation of discrimination through ROC analysis and of overall goodness-of-fit through the Cox calibration test. MAIN RESULTS: Although discrimination was good, calibration turned out to be poor. The general and the South-Europe Mediterranean countries equations overestimated hospital mortality overall (SMR values 0.73 with 95% CI 0.72-0.75 for both equations) and homogeneously across risk classes. Overprediction was confirmed among important subgroups, with SMR values ranging between 0.47 and 0.82. CONCLUSIONS: The result strictly supported by our data is that the SAPS 3 score calibrates inadequately in a large sample of Italian ICU patients and thus should not be used for benchmarking, at least in Italian settings.
Authors: A Rhodes; R P Moreno; E Azoulay; M Capuzzo; J D Chiche; J Eddleston; R Endacott; P Ferdinande; H Flaatten; B Guidet; R Kuhlen; C León-Gil; M C Martin Delgado; P G Metnitz; M Soares; C L Sprung; J F Timsit; A Valentin Journal: Intensive Care Med Date: 2012-01-26 Impact factor: 17.440
Authors: Massimo Antonelli; Elie Azoulay; Marc Bonten; Jean Chastre; Giuseppe Citerio; Giorgio Conti; Daniel De Backer; François Lemaire; Herwig Gerlach; Goran Hedenstierna; Michael Joannidis; Duncan Macrae; Jordi Mancebo; Salvatore M Maggiore; Alexandre Mebazaa; Jean-Charles Preiser; Jerôme Pugin; Jan Wernerman; Haibo Zhang Journal: Intensive Care Med Date: 2010-01-08 Impact factor: 17.440