Chest
Volume 117, Issue 4, April 2000, Pages 1112-1117
Clinical Investigations in Critical CareEffect of Varying the Case Mix on the Standardized Mortality Ratio and W Statistic: A Simulation Study
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Key words
acute physiology and chronic health evaluation II
ICU
standardized mortality ratio
Abbreviations
APACHE
acute physiology and chronic health evaluation
CI
confidence interval
MPM
mortality probability model
Pd
probability of death
SMR
standardized mortality ratio
SMRj
SMR of each risk interval
SMRs
standardized form of the SMR
Wj
W statistic of each risk interval
Ws
standardized form of the W statistic
VICU
virtual ICU
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Copyright © 2000 The American College of Chest Physicians. Published by Elsevier Inc. All rights reserved.