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The utility of acute physiology and chronic health evaluation II scores for prediction of mortality among intensive care unit (ICU) and non-ICU patients with methicillin-resistant Staphylococcus aureus bacteremia.

Abstract：

OBJECTIVE:Bloodstream infections due to methicillin-resistant Staphylococcus aureus (MRSA) have been associated with significant risk of in-hospital mortality. The acute physiology and chronic health evaluation (APACHE) II score was developed and validated for use among intensive care unit (ICU) patients, but its utility among non-ICU patients is unknown. The aim of this study was to determine the ability of APACHE II to predict death at multiple time points among ICU and non-ICU patients with MRSA bacteremia. DESIGN:Retrospective cohort study. PARTICIPANTS:Secondary analysis of data from 200 patients with MRSA bacteremia at 2 hospitals. METHODS:Logistic regression models were constructed to predict overall in-hospital mortality and mortality at 48 hours, 7 days, 14 days, and 30 days using APACHE II scores separately in ICU and non-ICU patients. The performance of APACHE II scores was compared with age adjustment alone among all patients. Discriminatory ability was assessed using the c-statistic and was compared at each time point using χ(2) tests. Model calibration was assessed using the Hosmer-Lemeshow goodness-of-fit test. RESULTS:APACHE II was a significant predictor of death at all time points in both ICU and non-ICU patients. Discrimination was high in all models, with c-statistics ranging from 0.72 to 0.84, and was similar between ICU and non-ICU patients at all time points. APACHE II scores significantly improved the prediction of overall and 48-hour mortality compared with age adjustment alone. CONCLUSIONS:The APACHE II score may be a valid tool to control for confounding or for the prediction of death among ICU and non-ICU patients with MRSA bacteremia.

journal_name

Infect Control Hosp Epidemiol

journal_title

Infection control and hospital epidemiology

authors

Stevens V,Lodise TP,Tsuji B,Stringham M,Butterfield J,Dodds Ashley E,Brown K,Forrest A,Brown J

doi

10.1086/665731

subject

Has Abstract

pub_date

2012-06-01 00:00:00

pages

558-64

issue

eissn

0899-823X

issn

1559-6834

journal_volume

pub_type

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The utility of acute physiology and chronic health evaluation II scores for prediction of mortality among intensive care unit (ICU) and non-ICU patients with methicillin-resistant Staphylococcus aureus bacteremia.