Health information on Wikipedia

[3] Across Wikipedia encyclopedias in all languages there were 155,000 health articles using 950,000 citations to sources and which collectively received 4.8 billion pageviews in 2013.

[4] A 2024 quantitative content analysis determined that "a sample of popular Wikipedia health-related articles for both sexes had comparable quality.

[4] A 2007 study examined a sample of Wikipedia pages about the most frequently performed surgical procedures in the United States, and found that 85.7% of them were appropriate for patients and that these articles had "a remarkably high level of internal validity".

[8] However, the same study also raised concerns about Wikipedia's completeness, noting that only 62.9% of the articles examined were free of "critical omissions".

[9] A 2010 study found that Wikipedia's article on osteosarcoma was of decent quality, but that the National Cancer Institute (NCI)'s page was better.

"[17][18] Following this paper, many other media sources reported that readers should not trust Wikipedia for medical information.

[26] A 2015 study comparing the coverage of the autism-vaccine controversy on several websites found that Wikipedia's articles were broadly pro-vaccine.

The study attributed this pro-vaccine stance to "this highly controversial topic attracting committed editors who strictly enforce the requirements for academic references.

"[27] A 2016 study found that drug information on Wikipedia was less accurate and complete than that on the medical reference site Micromedex.

[33] The readability of Wikipedia's articles on epilepsy was evaluated and found to be low, indicating that they were difficult to read.

[35] Another 2015 study, this one authored by Samy Azer, reported that Wikipedia should not be used to learn about concepts related to pulmonology students.

[36] Another 2015 study by Azer found that Wikipedia entries about cardiovascular diseases were "not aimed at a medical audience" and were mainly inaccurate due to errors of omission.

[43] People who promote alternative medicine have complained that Wikipedia negatively portrays holistic health treatments including energy medicine, Emotional Freedom Techniques, Thought Field Therapy and Tapas Acupressure Technique.

[47] The majority of people in the United States use the internet as a source of health information.

[51] According to the same report, 50% of U.S. physicians that go online for professional purposes are using Wikipedia to access information.

[53] A 2015 study compared the popularity of Wikipedia's articles on ten of the most common neurological disorders over a 90-day period from April 2014 to July 2014; it found that there was no relationship between the incidence or prevalence of a neurological disorder and the number of page views it received.

[57] In 2013, UCSF School of Medicine began to offer fourth-year medical students a month-long elective centered around improving Wikipedia's health-related articles.

The study found no correlation between the type of resource used and students' performance on the NBME surgery subject exam.

[66] A 2014 study of 259 health professionals in Spain found that while 53% of them used the Spanish Wikipedia to look up medical information during work, only 3% of them considered it reliable and only 16% recommended it to their patients.

[3] The study also found that the "core editor community", who actively monitor and edit most health-related articles on the English-language Wikipedia, numbered around 300 people.

[72] The study found that people who contribute on these topics do so for a variety of reasons, including a desire to better learn the subjects themselves, and a sense of both responsibility and enjoyment in improving others' access to health information.

[78] In 2011, it was reported that Cancer Research UK had started a program whereby some of its staff would edit Wikipedia's cancer-related articles.

The University of California, San Francisco has a program for encouraging students to contribute health content to Wikipedia.

Popular medical websites in July 2019
Number of medical articles added to Wikipedia per half year, 2011 to 2020
An ontology of Wikidata medical information
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