Comparison of three severity scores for critically ill cancer patients
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To compare three scoring systems, the Acute Physiology and Chronic Health Evaluation (APACHE) II, the Simplified Acute Physiology Score (SAPS) II and a modified Mortality Probability Model II (ICU cancer mortality model, ICMM) for their prognostic value for mortality during hospital stay in a group of cancer patients admitted to a medical ICU.
Prospective cohort study.
Medical ICU of a tertiary care hospital.
Two hundred forty-two consecutive cancer patients admitted to the ICU.
Measurements and results
Variables included in APACHE II, SAPS II and the ICMM scores as well as demographic data were assessed during the first 24 h of stay in the ICU. Hospital mortality was measured; it was 44%. Calibration for all three scoring systems was acceptable, SAPS II yielded a significantly superior discrimination between survivors and non-survivors. The areas under the receiver operating characteristic curves were 0.776 for APACHE II, 0.825 for SAPS II and 0.698 for the ICMM.
The SAPS II was superior to APACHE II and ICMM. The newly developed ICMM does not improve mortality prediction in critically ill cancer patients.
KeywordsScoring Cancer Critical care Acute Physiology and Chronic Health Evaluation (APACHE) II Simplified Acute Physiology Score (SAPS) II Mortality Probability Model II
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