Evidence map›Paper›PMID 36111457›Full record

ArticleInfection control and hospital epidemiology2023

Extending outbreak investigation with machine learning and graph theory: Benefits of new tools with application to a nosocomial outbreak of a multidrug-resistant organism.

Andrew Atkinson, Benjamin Ellenberger, Vanja Piezzi, Tanja Kaspar, Luisa Salazar-Vizcaya, Olga Endrich, Alexander B Leichtle, Jonas Marschall

Abstract read
In one paragraph

Article in Infection control and hospital epidemiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
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  5. Article
  6. Review
  7. Article
  8. Review
  9. Nosocomial outbreak of vancomycin-resistantEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2022
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Andrew Atkinson *Department of Infectious Diseases, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland.ORCID 0000-0001-5834-8315
Benjamin Ellenberger *Insel Data Science Center, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland.ORCID 0000-0002-4787-0471
Vanja PiezziDepartment of Infectious Diseases, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland.
Tanja KasparDepartment of Infectious Diseases, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland.
Luisa Salazar-VizcayaDepartment of Infectious Diseases, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland.
Olga EndrichMedical Directorate, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland.
Alexander B LeichtleInsel Data Science Center, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland.ORCID 0000-0002-6528-9904
Jonas MarschallDepartment of Infectious Diseases, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland.ORCID 0000-0002-0052-3210

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveFrom January 1, 2018, until July 31, 2020, our hospital network experienced an outbreak of vancomycin-resistant enterococci (VRE). The goal of our study was to improve existing processes by applying machine-learning and graph-theoretical methods to a nosocomial outbreak investigation.

methodsWe assembled medical records generated during the first 2 years of the outbreak period (January 2018 through December 2019). We identified risk factors for VRE colonization using standard statistical methods, and we extended these with a decision-tree machine-learning approach. We then elicited possible transmission pathways by detecting commonalities between VRE cases using a graph theoretical network analysis approach.

resultsWe compared 560 VRE patients to 86,684 controls. Logistic models revealed predictors of VRE colonization as age (aOR, 1.4 (per 10 years), with 95% confidence interval [CI], 1.3-1.5;

conclusionsWe identified risk factors for being a VRE carrier, along with 3 important links with VRE (healthcare personnel, medical devices, patient rooms). Data science is likely to provide a better understanding of outbreaks, but interpretations require data maturity, and potential confounding factors must be considered.

Indexed as

Cross InfectionGram-Positive Bacterial InfectionsVancomycin-Resistant EnterococciAnti-Bacterial AgentsChildDisease OutbreaksDrug Resistance, Multiple, BacterialHospitalsHumansRisk FactorsAnti-Bacterial Agents

Identifiers

PMID36111457
PMCPMC9929710

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.