J Trauma
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Multicenter Study
Probability model of hospital death for severe trauma patients based on the Simplified Acute Physiology Score I: development and validation. Archivio Diagnostico.
We evaluated whether or not the Simplified Acute Physiology Score (SAPS) I is a suitable audit system for trauma patients admitted to general intensive care units (ICUs). A probability model for SAPS I was retrospectively assessed on trauma patients admitted to general ICUs from 1990 to 1992. Because it was determined that SAPS did not fit the data well, we developed a customized probability model of SAPS I for trauma patients and validated it prospectively on an independent data set (patients admitted to general ICU in 1993-1994). Measures of calibration (goodness of fit) and discrimination (receiver operating characteristic curve) were adopted to assess the performance of the model. ⋯ Customization of SAPS I for trauma patients has shown good calibration and high discriminatory power in Italian ICUs and when applied to an independent data base. The advantage of customization would be the collection of the same set of variables for all patients admitted to ICUs against the use of specific scoring systems.