Evidence map›Paper›PMID 26443650›Full record

ArticleBMJ open2015

Accuracy and readability of cardiovascular entries on Wikipedia: are they reliable learning resources for medical students?

Samy A Azer, Nourah M AlSwaidan, Lama A Alshwairikh, Jumana M AlShammari

Abstract read
In one paragraph

Article in BMJ open, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
–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

25 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. [Contraception in the German-language Wikipedia: a content and quality analysis].Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz · 2022
    Article
  13. Big Data in Cardiology: State-of-Art and Future Prospects.Frontiers in cardiovascular medicine · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

4 authors.

Samy A AzerDepartment of Medical Education, Curriculum Development and Research Unit, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
Nourah M AlSwaidanDepartment of Medical Education, Curriculum Development and Research Unit, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
Lama A AlshwairikhDepartment of Medical Education, Curriculum Development and Research Unit, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
Jumana M AlShammariDepartment of Medical Education, Curriculum Development and Research Unit, College of Medicine, King Saud University, Riyadh, Saudi Arabia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate accuracy of content and readability level of English Wikipedia articles on cardiovascular diseases, using quality and readability tools.

methodsWikipedia was searched on the 6 October 2013 for articles on cardiovascular diseases. Using a modified DISCERN (DISCERN is an instrument widely used in assessing online resources), articles were independently scored by three assessors. The readability was calculated using Flesch-Kincaid Grade Level. The inter-rater agreement between evaluators was calculated using the Fleiss κ scale.

resultsThis study was based on 47 English Wikipedia entries on cardiovascular diseases. The DISCERN scores had a median=33 (IQR=6). Four articles (8.5%) were of good quality (DISCERN score 40-50), 39 (83%) moderate (DISCERN 30-39) and 4 (8.5%) were poor (DISCERN 10-29). Although the entries covered the aetiology and the clinical picture, there were deficiencies in the pathophysiology of diseases, signs and symptoms, diagnostic approaches and treatment. The number of references varied from 1 to 127 references; 25.9±29.4 (mean±SD). Several problems were identified in the list of references and citations made in the articles. The readability of articles was 14.3±1.7 (mean±SD); consistent with the readability level for college students. In comparison, Harrison's Principles of Internal Medicine 18th edition had more tables, less references and no significant difference in number of graphs, images, illustrations or readability level. The overall agreement between the evaluators was good (Fleiss κ 0.718 (95% CI 0.57 to 0.83).

conclusionsThe Wikipedia entries are not aimed at a medical audience and should not be used as a substitute to recommended medical resources. Course designers and students should be aware that Wikipedia entries on cardiovascular diseases lack accuracy, predominantly due to errors of omission. Further improvement of the Wikipedia content of cardiovascular entries would be needed before they could be considered a supplementary resource.

Indexed as

BibliometricsComprehensionCardiologyCardiovascular DiseasesComputer-Assisted InstructionCurriculumEducation, Medical, UndergraduateHumansSocial MediaStudents, MedicalTextbooks as TopicMEDICAL EDUCATION & TRAINING

Identifiers

PMID26443650
PMCPMC4606442

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.