The poor reliability of online health information

  • Many popular YouTube videos about prostate cancer contained biased or poor-quality information.
  • There was a significant negative correlation between scientific quality and viewer engagement.
  • The comments section underneath some videos contained advertising and peer-to-peer medical advice.
  • A total of 115 videos (77%) contained potentially misinformative and/or biased content within the video or comments section, with a total reach of >6 million viewers.
  • For online health seekers there is too much invalid health information and they are pretty much left to determine what’s based on medical knowledge and what’s garbage.

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