Evidence map›Paper›PMID 33023704›Full record

ArticleEpidemiology and infection2020

The use of multiple hypothesis-generating methods in an outbreak investigation of

V Morton, T Kershaw, A Kearney, M Taylor, E Galanis, V Mah, B Adhikari, Y Whitfield, C Duchesne, L Hoang and 3 more

Open access · goldAbstract read
In one paragraph

Article in Epidemiology and infection, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.0field-weighted citation impact, top 22% of its field
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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. 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

13 authors at 8 institutions in 1 country.

V MortonPublic Health Agency of Canada, GuelphON, Canada.ORCID 0000-0002-4471-1985
T KershawPublic Health Agency of Canada, GuelphON, Canada.
A KearneyPublic Health Agency of Canada, WinnipegMB, Canada.
M TaylorBritish Columbia Centre for Disease Control, VancouverBC, Canada.ORCID 0000-0002-9343-3395
E GalanisBritish Columbia Centre for Disease Control, VancouverBC, Canada.
V MahAlberta Health, EdmontonAB, Canada.
B AdhikariSaskatchewan Ministry of Health, ReginaSK, Canada.
Y WhitfieldPublic Health Ontario, Toronto, ON, Canada.
C DuchesneMinistère de la Santé et des Services sociaux, Quebec City, QC, Canada.
L HoangBritish Columbia Public Health Microbiology and Reference Laboratory, British Columbia Centre for Disease Control, VancouverBC, Canada.
L ChuiProvincial Laboratory for Public Health: Alberta Public Laboratories, EdmontonAB, Canada.
K GrantCanadian Food Inspection Agency, OttawaON, Canada.
A HexemerPublic Health Agency of Canada, GuelphON, Canada.
Public Health Agency of Canada · CABC Centre for Disease Control · CAAlberta Health · CACanadian Food Inspection Agency · CAMinistry of Health · CAMinistry of Health and Social Services · CAProvincial Laboratory of Public Health · CAPublic Health Ontario · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A Canadian outbreak investigation into a cluster of Escherichia coli O121 was initiated in late 2016. When initial interviews using a closed-ended hypothesis-generating questionnaire did not point to a common source, cases were centrally re-interviewed using an open-ended approach. The open-ended interviews led cases to describe exposures with greater specificity, as well as food preparation activities. Data collected supported hypothesis generation, particularly with respect to flour exposures. In March 2017, an open sample of Brand X flour from a case home, and a closed sample collected at retail of the same brand and production date, tested positive for the outbreak strain of E. coli O121. In total, 76% (16/21) of cases reported that they used or probably used Brand X flour or that it was used or probably was used in the home during their exposure period. Crucial hypothesis-generating techniques used during the course of the investigation included a centralised open-ended interviewing approach and product sampling from case homes. This was the first outbreak investigation in Canada to identify flour as the source of infection.

Indexed as

TriticumCanadaDiet RecordsDisease OutbreaksEscherichia coli InfectionsFlourFood MicrobiologyHumansInterviews as TopicResearch DesignShiga-Toxigenic Escherichia coliSurveys and QuestionnairesEscherichia coli (E. coli)food-borne infectionsoutbreaks

Identifiers

PMID33023704
PMCPMC7689785
OpenAlexW3092570365

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.