We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Prediction of long-term mortality in ICU patients: model validation and assessing the effect of using in-hospital versus long-term mortality on benchmarking.
- Authors
Brinkman, Sylvia; Abu-Hanna, Ameen; Jonge, Evert; Keizer, Nicolette
- Abstract
Purpose: To analyze the influence of using mortality 1, 3, and 6 months after intensive care unit (ICU) admission instead of in-hospital mortality on the quality indicator standardized mortality ratio (SMR). Methods: A cohort study of 77,616 patients admitted to 44 Dutch mixed ICUs between 1 January 2008 and 1 July 2011. Four Acute Physiology and Chronic Health Evaluation (APACHE) IV models were customized to predict in-hospital mortality and mortality 1, 3, and 6 months after ICU admission. Models' performance, the SMR and associated SMR rank position of the ICUs were assessed by bootstrapping. Results: The customized APACHE IV models can be used for prediction of in-hospital mortality as well as for mortality 1, 3, and 6 months after ICU admission. When SMR based on mortality 1, 3 or 6 months after ICU admission was used instead of in-hospital SMR, 23, 36, and 30 % of the ICUs, respectively, received a significantly different SMR. The percentages of patients discharged from ICU to another medical facility outside the hospital or to home had a significant influence on the difference in SMR rank position if mortality 1 month after ICU admission was used instead of in-hospital mortality. Conclusions: The SMR and SMR rank position of ICUs were significantly influenced by the chosen endpoint of follow-up. Case-mix-adjusted in-hospital mortality is still influenced by discharge policies, therefore SMR based on mortality at a fixed time point after ICU admission should preferably be used as a quality indicator for benchmarking purposes.
- Subjects
HOSPITAL mortality; INTENSIVE care patients; HEALTH outcome assessment; CRITICAL care medicine; HOSPITAL care -- Quality control
- Publication
Intensive Care Medicine, 2013, Vol 39, Issue 11, p1925
- ISSN
0342-4642
- Publication type
Article
- DOI
10.1007/s00134-013-3042-5