Cited by 84Machine Learning in HealthcareHealthcare Technology and Patient MonitoringCardiac Arrest and Resuscitation

Detecting Deteriorating Patients in the Hospital: Development and Validation of a Novel Scoring System

Open access
Pimentel, Marco A. F., Redfern, Oliver C., Malycha, James, Meredith, Paul, Prytherch, David, Briggs, Jim, Young, J. Duncan, Clifton, David A. +2 more·2021·American Journal of Respiratory and Critical Care Medicine

Abstract

Rationale: Late recognition of patient deterioration in hospital is associated with worse outcomes, including higher mortality. Despite the widespread introduction of early warning score (EWS) systems and electronic health records, deterioration still goes unrecognized. Objectives: To develop and externally validate a Hospital- wide Alerting via Electronic Noticeboard (HAVEN) system to identify hospitalized patients at risk of reversible deterioration. Methods: This was a retrospective cohort study of patients 16 years of age or above admitted to four UK hospitals. The primary outcome was cardiac arrest or unplanned admission to the ICU. We used patient data (vital signs, laboratory tests, comorbidities, and frailty) from one hospital to train a machine-learning model (gradient boosting trees). We internally and externally validated the model and compared its performance with existing scoring systems (including the National EWS, laboratory-based acute physiology score, and electronic cardiac arrest risk triage score). Measurements and Main Results: We developed the HAVEN model using 230,415 patient admissions to a single hospital. We validated HAVEN on 266,295 admissions to four hospitals. HAVEN showed substantially higher discrimination (c-statistic, 0.901 [95% confidence interval, 0.898-0.903]) for the primary outcome within 24 hours of each measurement than other published scoring systems (which range from 0.700 [0.696-0.704] to 0.863 [0.860-0.865]). With a precision of 10…

Integrity signals

Registry

Crossref · 10.1164/rccm.202007-2700oc

Cites

7 of 7 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Models using readily available EHR data can accurately predict clinical deterioration and sepsis hours before they occur.

    “Two prominent examples relevant to critical care are models using readily available EHR data that can accurately predict clinical deterioration and sepsis hours before they occur [28–33]; these models exemplify real-time CDSS that alert clinicians and prompt evaluation, testing, and interventions [33].”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Pimentel, M. A. F., Redfern, O. C., Malycha, J., Meredith, P., Prytherch, D., Briggs, J., Young, J. D., Clifton, D. A., Tarassenko, L., & Watkinson, P. J.
Affiliations
  • Institute of Biomedical Engineering (Japan) (JP)
  • University of Oxford (GB)
  • National Health Service (GB)
  • University of Portsmouth (GB)
Corresponding author
Redfern, Oliver C.
Venue
American Journal of Respiratory and Critical Care Medicine
Published
2021-07-01
Volume
204
Issue
1
Pages
44-52
ISSN
  • 1073-449X (ISSN-L)
  • 1535-4970
OpenAlex
W3128049448
Cited by
84
References
7
Citations by year
2026: 11 · 2025: 17 · 2024: 11 · 2023: 16 · 2022: 17 · 2021: 12
FWCI
4.95
Type
journal article
Language
en
Open access
Locations
  • American Journal of Respiratory and Critical Care Medicine (publishedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Health Innovation Challenge Fund (HICF-R9-524, WT-103703/Z/14/Z)
  • UK Department of Health and Social Care
  • Wellcome Trust
  • National Institute for Health Research Biomedical Research Centre, Oxford
  • Drayson Research fellowships
  • UK Department of Health and Social Care or the Wellcome Trust
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Machine Learning in Healthcare
  • Health Sciences › Medicine › Surgery › Healthcare Technology and Patient Monitoring
  • Health Sciences › Medicine › Emergency Medicine › Cardiac Arrest and Resuscitation
Keywords
early warning scores, cardiac arrest prediction, unplanned ICU admission, machine learning, gradient boosting decision tree, National Early Warning Score, hospitalized patients
MeSH terms
Machine Learning, Clinical Deterioration, Early Warning Score, Adolescent, Adult, Aged, Aged, 80 and over, Algorithms, Female, United Kingdom, Humans, Male, Middle Aged, Retrospective Studies, Risk Factors, Reproducibility of Results, Cohort Studies, Guidelines as Topic, Risk Assessment, Young Adult, Vital Signs

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review