A substantial amount of health news articles shared on social media in 2018 contained information that was misleading or outright false, according to a review conducted by Health Feedback and the Credibility Coalition.
Cheat sheet series: Evidence-based medicine 101
For the study, scientists at Health Feedback examined the 100 health articles with the most social media engagement in 2018. Each article was scored on a scale of +2 (very high credibility) to -2 (very low credibility). Articles deemed neutral were given a zero.
The articles' scores took into account "the scientific accuracy of facts contained within the text, and the scientific quality of reasoning used," rather than any opinions expressed in the article.
When looking at the top 10 stories with the highest social media engagement in 2018, the scientists found that seven were either misleading or contained false information, while just three were considered "highly credible."
The scientists estimated that, of the articles on the top 10 list, the ones with very low credibility scores received 2.1 million shares, while the neutral articles received 2.6 million shares, and the most credible ones received 1.7 million shares.
The top 10 most-shared articles that were reviewed by clinicians and scientists for accuracy were:
Overall, the scientists found that just under half of the top 100 articles had a high credibility rating, and these articles received a total of 11 million shares—while articles with poor credibility ratings received about 8.5 million shares.
The scientists also found that 96% of the shares received by the top 100 articles came from Facebook, while 2% came from Reddit and 1% came from Twitter.
The scientists attributed the rise of viral fake news stories to sensationalized headlines that grab readers' attention. The scientists said more balanced and credible stories do not always lend themselves toward grabby headlines. "This means that the general public is more likely to come into contact with misleading information than accurate [articles] on social media," they said.
This isn't necessarily surprising, Rina Raphael reports for Fast Company, as false news stories have been shown to spread faster and more broadly than accurate ones, according to a report published in Science.
Susan Krenn, executive director of the Johns Hopkins Center for Communication Programs, told Fast Company that reining in false news is a difficult task. She said, "It's a challenge, because when you see something posted on your social media site that comes from one of your peers, colleagues, or family members, you are more likely to believe it," she said (Raphael, Fast Company, 2/4; HealthFeedback methodology, accessed 2/6).
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