Prognostic accuracy of the Hamilton Early Warning Score (HEWS) and the National Early Warning Score 2 (NEWS2) among hospitalized patients ... View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2019-12

AUTHORS

Shannon M. Fernando, Alison E. Fox-Robichaud, Bram Rochwerg, Pierre Cardinal, Andrew J. E. Seely, Jeffrey J. Perry, Daniel I. McIsaac, Alexandre Tran, Steven Skitch, Benjamin Tam, Michael Hickey, Peter M. Reardon, Peter Tanuseputro, Kwadwo Kyeremanteng

ABSTRACT

BACKGROUND: Rapid response teams (RRTs) respond to hospitalized patients experiencing clinical deterioration and help determine subsequent management and disposition. We sought to evaluate and compare the prognostic accuracy of the Hamilton Early Warning Score (HEWS) and the National Early Warning Score 2 (NEWS2) for prediction of in-hospital mortality following RRT activation. We secondarily evaluated a subgroup of patients with suspected infection. METHODS: We retrospectively analyzed prospectively collected data (2012-2016) of consecutive RRT patients from two hospitals. The primary outcome was in-hospital mortality. We calculated the number needed to examine (NNE), which indicates the number of patients that need to be evaluated in order to detect one future death. RESULTS: Five thousand four hundred ninety-one patients were included, of whom 1837 (33.5%) died in-hospital. Mean age was 67.4 years, and 51.6% were male. A HEWS above the low-risk threshold (≥ 5) had a sensitivity of 75.9% (95% confidence interval (CI) 73.9-77.9) and specificity of 67.6% (95% CI 66.1-69.1) for mortality, with a NNE of 1.84. A NEWS2 above the low-risk threshold (≥ 5) had a sensitivity of 84.5% (95% CI 82.8-86.2), and specificity of 49.0% (95% CI: 47.4-50.7), with a NNE of 2.20. The area under the receiver operating characteristic curve (AUROC) was 0.76 (95% CI 0.75-0.77) for HEWS and 0.72 (95% CI: 0.71-0.74) for NEWS2. Among suspected infection patients (n = 1708), AUROC for HEWS was 0.79 (95% CI 0.76-0.81) and for NEWS2, 0.75 (95% CI 0.73-0.78). CONCLUSIONS: The HEWS has comparable clinical accuracy to NEWS2 for prediction of in-hospital mortality among RRT patients. More... »

PAGES

60

Identifiers

URI

http://scigraph.springernature.com/pub.10.1186/s13054-019-2355-3

DOI

http://dx.doi.org/10.1186/s13054-019-2355-3

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1112292051

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/30791952


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