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The Intermountain Risk Score predicts mortality in trauma patients
Sarah Majercik1, Stacey Knight2, Benjamin D Horne2
1Division of Trauma Services and Critical Care Medicine, Intermountain Medical Center, Murray, UT, USA.
Journal of Critical Care
|April 29, 2014
Summary
The Intermountain Risk Score (IMRS) effectively predicts mortality in trauma patients. This validated tool uses basic blood tests to assess patient risk upon admission, aiding clinical decisions.
Area of Science:
- Trauma surgery
- Critical care medicine
- Biostatistics
Background:
- The Intermountain Risk Score (IMRS) is established for predicting mortality in medical patients.
- Its utility in trauma populations remains unevaluated.
Purpose of the Study:
- To assess the predictive accuracy of the IMRS for mortality in trauma patients.
- To validate the IMRS in a Level I trauma center setting.
Main Methods:
- Evaluation of trauma patients admitted between October 2005 and December 2011.
- Calculation of 30-day and 1-year IMRS using multivariable modeling.
- Mortality determination via medical records and Social Security Administration data.
Main Results:
- The IMRS demonstrated high predictive power for 30-day mortality (C-statistics: 0.772 females, 0.783 males) and 1-year mortality (C-statistics: 0.778 females, 0.831 males).
- Adjusted Cox regression revealed significantly increased mortality risks in moderate and high IMRS groups (HRs 4.96-57.88, P < .001).
Conclusions:
- The Intermountain Risk Score is a strong predictor of mortality in trauma patients.
- IMRS offers a valuable, clinically significant tool for assessing patient mortality risk at admission.
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