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KMID : 1221920150080010071
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Journal of Korean Critical Care Nursing
2015 Volume.8 No. 1 p.71 ~ p.79
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Comparative Analysis of the Accuracy of Severity Scoring Systems for the Prediction of Healthcare Outcomes of Intensive Care Unit Patients
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Seong Ji-Suk
So Hee-Young
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Abstract
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Purpose: The purpose of this study was to compare the applicability of the Charlson Comorbidity Index (CCI) and Acute Physiology, Age, Chronic Health Evaluation III (APACHE III) to the prediction of the healthcare outcomes of intensive care unit (ICU) patients.
Methods: This research was performed with 136 adult patients (age>18 years) who were admitted to the ICU between May and June 2012. Data were measured using the CCI score with a comorbidity index of 19 and the APACHE III score on the standard of the worst result with vital signs and laboratory results. Discrimination was evaluated using receiver operating characteristic (ROC) curves and area under an ROC curve (AUC). Calibration was performed using logistic regression.
Results: The overall mortality was 25.7%. The mean CCI and APACHE III scores for survivors were found to be significantly lower than those of non-survivors. The AUC was 0.835 for the APACHE III score and remained high, at 0.688, for the CCI score. The rate of concordance according to the CCI and the APACHE III score was 69.1%.
Conclusion: The route of admission, days in ICU, CCI, and APACHE III score are associated with an increased mortality risk in ICU patients.
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KEYWORD
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Intensive care unit, Severity scoring systems, Healthcare outcomes
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