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Critical Care
Published in: Critical Care 4/2014

Open Access 01-08-2014 | Research

Factors influencing lengths of stay in the intensive care unit for surviving trauma patients: a retrospective analysis of 30,157 cases

Authors: Andreas B Böhmer, Katja S Just, Rolf Lefering, Thomas Paffrath, Bertil Bouillon, Robin Joppich, Frank Wappler, Mark U Gerbershagen

Published in: Critical Care | Issue 4/2014

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Abstract

Introduction

There are many potential influencing factors that affect the duration of intensive care treatment for patients who have survived multiple trauma. Yet the respective factors’ relevance to ICU length of stay (LOS) has been rarely studied. Thus, the aim of the present study was to investigate to what extent specific factors influence ICU LOS in surviving trauma patients.

Methods

We retrospectively analyzed a dataset of 30,157 surviving trauma patients from the TraumaRegister DGU® who were older than six years of age and received subsequent intensive care treatment for more than one day, from 2002 to 2011. Univariate analysis and multiple linear regression analysis were used to examine 25 categorical pre- and post-trauma parameters.

Results

Univariate analysis confirmed the impact of all analyzed factors. In subsequent multiple linear regression analyses, coefficients ranged from -1.3 to +8.2 days. The factors that influenced the prolongation of ICU LOS most were renal failure (+8.1 days), sepsis (+7.8 days) and respiratory failure (+4.9 days). Patients spent one additional day in the ICU for every 5 additional points on the Injury Severity Score (regression coefficient +0.2 per point). Furthermore, massive transfusion (+3.3 days), invasive ventilation (+3.1 days), and an initial Glasgow Coma Scale score ≤8 (+3.0 days) had a significant impact on ICU LOS. The coefficient of determination for the model was 44% (R2).

Conclusions

Treatment regimens, as well as secondary effects and complications of trauma and intensive care treatment, prolong ICU LOS more than the mechanism of trauma or pre-trauma patient conditions. Successful prevention of complicated courses of illness, such as sepsis and renal and respiratory failure, could significantly abbreviate the ICU stay in trauma patients. Therefore, the staff’s attention should be focused on preventive strategies.
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Metadata
Title
Factors influencing lengths of stay in the intensive care unit for surviving trauma patients: a retrospective analysis of 30,157 cases
Authors
Andreas B Böhmer
Katja S Just
Rolf Lefering
Thomas Paffrath
Bertil Bouillon
Robin Joppich
Frank Wappler
Mark U Gerbershagen
Publication date
01-08-2014
Publisher
BioMed Central
Published in
Critical Care / Issue 4/2014
Electronic ISSN: 1364-8535
DOI
https://doi.org/10.1186/cc13976

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