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Comparison of qSOFA and Hospital Early Warning Scores for prognosis in suspected sepsis in emergency department patients: a systematic review
  1. Lisa Sabir1,
  2. Shammi Ramlakhan2,
  3. Steve Goodacre1
  1. 1School of Health and Related Research (ScHARR), The University of Sheffield, Sheffield, UK
  2. 2Emergency Department, Sheffield Children's NHS Foundation Trust, Sheffield, UK
  1. Correspondence to Dr Lisa Sabir, School of Health and Related Research (ScHARR), The University of Sheffield, Sheffield, S14DA, UK; l.sabir{at}sheffield.ac.uk

Abstract

Background Sepsis is a major cause of morbidity and mortality and many tools exist to facilitate early recognition. This review compares two tools: the quick Sequential Organ Failure Assessment (qSOFA) and Early Warning Scores (National/Modified Early Warning Scores (NEWS/MEWS)) for predicting intensive care unit (ICU) admission and mortality when applied in the emergency department.

Methods A literature search was conducted using Medline, CINAHL, Embase and Cochrane Library, handsearching of references and a grey literature search with no language or date restrictions. Two authors selected studies and quality assessment completed using QUADAS-2. Area under the receiver operating characteristic curve (AUROC), sensitivities and specificities were compared.

Results 13 studies were included, totalling 403 865 patients. All reported mortality and six reported ICU admission.

The ranges for AUROC estimates varied from little better than chance to good prediction of mortality (NEWS: 0.59–0.88; qSOFA: 0.57–0.79; MEWS 0.56–0.75), however, individual papers generally reported higher AUROC values for NEWS than qSOFA. NEWS values demonstrated a tendency towards better sensitivity for ICU admission (NEWS ≥5, 46%-91%; qSOFA ≥2, 12%–53%) and mortality (NEWS ≥5, 51%–97%; qSOFA ≥2, 14%–71%) but lower specificity (ICU: NEWS ≥5, 25%–91%; qSOFA ≥2, 67%–99%; mortality: NEWS ≥5, 22%–91%; qSOFA ≥2, 58%–99%).

Conclusion The wide range of AUROC estimates and high heterogeneity limit our conclusions. Allowing for this, the NEWS AUROC was consistently higher than qSOFA within individual papers. Both scores allow threshold setting, determined by the preferred compromise between sensitivity and specificity. At established thresholds NEWS tended to higher sensitivity while qSOFA tended to a higher specificity.

PROSPERO registration number CRD42019131414.

  • emergency department
  • infectious diseases
  • intensive care
  • clinical assessment
  • death/mortality

Data availability statement

All data relevant to the study are included in the article or uploaded as supplementary information

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Data availability statement

All data relevant to the study are included in the article or uploaded as supplementary information

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Footnotes

  • Handling editor Kirsty Challen

  • Twitter @shammi_ram

  • Contributors All authors made substantial contribution to the conception and design (LS, SR and SG), search strategy, study selection, data extraction (LS and SR), analysis and interpretation (LS, SR and SG). LS drafted the article and all other authors revised it critically.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests SG is chief investigator for the PHEWS study (Pre-Hospital Early Warning Scores for Sepsis), funded by the National Institute for Health Research Health Technology Assessment Programme (Reference 17/136/10). This paper was not undertaken as part of the PHEWS study.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Supplemental material This content has been supplied by the author(s). It has not been vetted by BMJ Publishing Group Limited (BMJ) and may not have been peer-reviewed. Any opinions or recommendations discussed are solely those of the author(s) and are not endorsed by BMJ. BMJ disclaims all liability and responsibility arising from any reliance placed on the content. Where the content includes any translated material, BMJ does not warrant the accuracy and reliability of the translations (including but not limited to local regulations, clinical guidelines, terminology, drug names and drug dosages), and is not responsible for any error and/or omissions arising from translation and adaptation or otherwise.

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