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Take Home Message: Internet search for health information is growing: 71% of adults in US in 2007. YouTube is used for health info and this study assessed the credibility of the info for heart attacks (MI).
Most content (98%) was posted in the last 3 years. Videos from professional societies were the least watched but had the most thorough content coverage (symptoms, physiology, prevention & treatment). The other sources (94% of content) from personal experience, news reports & pharmaceutical industry had seven times greater number of views. But these were not thorough. Only 7% urged immediate treatment for a heart attack - the most important of all public messages. Prevention was mentioned in 17% of videos. Caveat Emptor. (Caveat Spectator) With Web 2.0, its better to trust trusted sources.
