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Published in: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine 1/2017

Open Access 01-12-2017 | Original research

The most commonly used disease severity scores are inappropriate for risk stratification of older emergency department sepsis patients: an observational multi-centre study

Authors: Bas de Groot, Frank Stolwijk, Mats Warmerdam, Jacinta A. Lucke, Gurpreet K. Singh, Mo Abbas, Simon P. Mooijaart, Annemieke Ansems, Laura Esteve Cuevas, Douwe Rijpsma

Published in: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine | Issue 1/2017

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Abstract

Background

Sepsis recognition in older emergency department (ED) patients is difficult due to atypical symptom presentation. We therefore investigated whether the prognostic and discriminative performance of the five most commonly used disease severity scores were appropriate for risk stratification of older ED sepsis patients (≥70 years) compared to a younger control group (<70 years).

Methods

This was an observational multi-centre study using an existing database in which ED patients who were hospitalized with a suspected infection were prospectively included. Patients were stratified by age < 70 and ≥70 years. We assessed the association with in-hospital mortality (primary outcome) and the area under the curve (AUC) with receiver operator characteristics of the Predisposition, Infection, Response, Organ dysfunction (PIRO), quick Sequential Organ Failure Assessment (qSOFA), Mortality in ED Sepsis (MEDS), and the Modified and National Early Warning (MEWS and NEWS) scores.

Results

In-hospital mortality was 9.5% ((95%-CI); 7.4–11.5) in the 783 included older patients, and 4.6% (3.6–5.7) in the 1497 included younger patients. In contrast to younger patients, disease severity scores in older patients associated poorly with mortality. The AUCs of all disease severity scores were poor and ranged from 0.56 to 0.64 in older patients, significantly lower than the good AUC range from 0.72 to 0.86 in younger patients. The MEDS had the best AUC (0.64 (0.57–0.71)) in older patients. In older and younger patients, the newly proposed qSOFA score (Sepsis 3.0) had a lower AUC than the PIRO score (sepsis 2.0).

Conclusion

The prognostic and discriminative performance of the five most commonly used disease severity scores was poor and less useful for risk stratification of older ED sepsis patients.
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Metadata
Title
The most commonly used disease severity scores are inappropriate for risk stratification of older emergency department sepsis patients: an observational multi-centre study
Authors
Bas de Groot
Frank Stolwijk
Mats Warmerdam
Jacinta A. Lucke
Gurpreet K. Singh
Mo Abbas
Simon P. Mooijaart
Annemieke Ansems
Laura Esteve Cuevas
Douwe Rijpsma
Publication date
01-12-2017
Publisher
BioMed Central
DOI
https://doi.org/10.1186/s13049-017-0436-3

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