Evidence map›Paper›PMID 32371527›Full record

ArticleCMAJ open

Association between media attention and presentation of vaccination information on Canadian chiropractors' websites: a prospective mixed-methods cohort study.

Yechan Kim, Adeel M Akhtar, Shane Natalwalla, Anna Goshua, Kumanan Wilson, Jason W Busse

Abstract read
In one paragraph

Article in CMAJ open. 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
–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

2 citing papers in PubMed.

  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

6 authors.

Yechan KimFaculty of Medicine (Kim), University of Western Ontario, London, Ont.; Departments of Medical Sciences (Kim), Health Sciences (Akhtar), Anesthesia (Busse) and Health Research Methods, Evidence & Impact (Busse), McMaster University, Hamilton, Ont.; Faculty of Medicine (Akhtar), Royal College of Surgeons in Ireland, Dublin, Ireland; Faculty of Medicine (Natalwalla), University of Toronto, Toronto, Ont.; School of Medicine (Goshua), Stanford University, Stanford, Calif.; Clinical Epidemiology Program (Wilson), Department of Medicine, Ottawa Hospital; Bruyère Research Institute (Wilson), Ottawa, Ont.
Adeel M AkhtarFaculty of Medicine (Kim), University of Western Ontario, London, Ont.; Departments of Medical Sciences (Kim), Health Sciences (Akhtar), Anesthesia (Busse) and Health Research Methods, Evidence & Impact (Busse), McMaster University, Hamilton, Ont.; Faculty of Medicine (Akhtar), Royal College of Surgeons in Ireland, Dublin, Ireland; Faculty of Medicine (Natalwalla), University of Toronto, Toronto, Ont.; School of Medicine (Goshua), Stanford University, Stanford, Calif.; Clinical Epidemiology Program (Wilson), Department of Medicine, Ottawa Hospital; Bruyère Research Institute (Wilson), Ottawa, Ont.
Shane NatalwallaFaculty of Medicine (Kim), University of Western Ontario, London, Ont.; Departments of Medical Sciences (Kim), Health Sciences (Akhtar), Anesthesia (Busse) and Health Research Methods, Evidence & Impact (Busse), McMaster University, Hamilton, Ont.; Faculty of Medicine (Akhtar), Royal College of Surgeons in Ireland, Dublin, Ireland; Faculty of Medicine (Natalwalla), University of Toronto, Toronto, Ont.; School of Medicine (Goshua), Stanford University, Stanford, Calif.; Clinical Epidemiology Program (Wilson), Department of Medicine, Ottawa Hospital; Bruyère Research Institute (Wilson), Ottawa, Ont.
Anna GoshuaFaculty of Medicine (Kim), University of Western Ontario, London, Ont.; Departments of Medical Sciences (Kim), Health Sciences (Akhtar), Anesthesia (Busse) and Health Research Methods, Evidence & Impact (Busse), McMaster University, Hamilton, Ont.; Faculty of Medicine (Akhtar), Royal College of Surgeons in Ireland, Dublin, Ireland; Faculty of Medicine (Natalwalla), University of Toronto, Toronto, Ont.; School of Medicine (Goshua), Stanford University, Stanford, Calif.; Clinical Epidemiology Program (Wilson), Department of Medicine, Ottawa Hospital; Bruyère Research Institute (Wilson), Ottawa, Ont.
Kumanan WilsonFaculty of Medicine (Kim), University of Western Ontario, London, Ont.; Departments of Medical Sciences (Kim), Health Sciences (Akhtar), Anesthesia (Busse) and Health Research Methods, Evidence & Impact (Busse), McMaster University, Hamilton, Ont.; Faculty of Medicine (Akhtar), Royal College of Surgeons in Ireland, Dublin, Ireland; Faculty of Medicine (Natalwalla), University of Toronto, Toronto, Ont.; School of Medicine (Goshua), Stanford University, Stanford, Calif.; Clinical Epidemiology Program (Wilson), Department of Medicine, Ottawa Hospital; Bruyère Research Institute (Wilson), Ottawa, Ont.
Jason W BusseFaculty of Medicine (Kim), University of Western Ontario, London, Ont.; Departments of Medical Sciences (Kim), Health Sciences (Akhtar), Anesthesia (Busse) and Health Research Methods, Evidence & Impact (Busse), McMaster University, Hamilton, Ont.; Faculty of Medicine (Akhtar), Royal College of Surgeons in Ireland, Dublin, Ireland; Faculty of Medicine (Natalwalla), University of Toronto, Toronto, Ont.; School of Medicine (Goshua), Stanford University, Stanford, Calif.; Clinical Epidemiology Program (Wilson), Department of Medicine, Ottawa Hospital; Bruyère Research Institute (Wilson), Ottawa, Ont. bussejw@mcmaster.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHistorically, some chiropractors have been critical of vaccination, and this has been the subject of recent media attention in Canada. We explored the association between media attention and public dissemination of vaccination information on Canadian chiropractors' websites.

methodsIn 2016, we identified all Canadian chiropractors' websites that provided information on vaccination by extracting details from the regulatory college website for each province using the search engine on their "find a chiropractor" page. We assessed the quality of information using the Web Resource Rating Tool (scores range from 0% [worst] to 100% [best]), determined whether vaccination was portrayed in a positive, neutral or negative manner, and conducted thematic analysis of vaccination content. We revisited all identified websites in 2019 to explore for changes to posted vaccination material.

resultsIn July 2016, of 3733 chiropractic websites identified, 94 unique websites provided information on vaccination: 59 (63%) gave negative messaging, 19 (20%) were neutral and 16 (17%) were positive. The quality of vaccination content on the websites was generally poor, with a median Web Resource Rating Tool score of 19%. We identified 4 main themes: there are alternatives to vaccination, vaccines are harmful, evidence regarding vaccination and health policy regarding vaccination. From 2012 to 2016, there was 1 Canadian newspaper story concerning antivaccination statements by chiropractors, whereas 51 news articles were published on this topic between 2017 and 2019. In April 2019, 45 (48%) of the 94 websites we had identified in 2016 had removed all vaccination content or had been discontinued.

interpretationIn 2016, a minority of Canadian chiropractors provided vaccination information on their websites, the majority of which portrayed vaccination negatively. After substantial national media attention, about half of all vaccination material on chiropractors' websites was removed within several years.

Indexed as

AttentionChiropracticInformation DisseminationSocial MediaWeb BrowserCanadaCohort StudiesHumansSurveys and QuestionnairesVaccination

Identifiers

PMID32371527
PMCPMC7207039

What OpenQuestion holds

Textmetadata
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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.