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Understanding Relative Risk vs Absolute Risk: Key Insights to Assess Health Findings

Learn the significance of hazard ratios, risk figures, and risk reduction in comparing health outcomes based on red meat consumption. Discover the importance of interpreting absolute vs relative risk to grasp the true impact of research findings. Helpful resources included.

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Understanding Relative Risk vs Absolute Risk: Key Insights to Assess Health Findings

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  1. Revision class 1 Thomas Abraham

  2. Hazard ratio: compares events in one group, with those in another group • Deaths among those who eat more red meat, compared to deaths among those who eat less red meat • Hazard ratios and relative risk ratios, can be read similarly, though they are technically different

  3. Understanding risk figures • By eating more red meat, I increase my risk of death from cancer and CVD by 20% • But even if I do not eat red meat, I still have a risk of getting cancer (absolute risk).

  4. At my age, I have a 10% chance of developing cancer or cvd ( absolute or baseline risk) • If I eat a lot of red meat, I increase this by 20%. (Relative risk increase) • Absolute risk increase 10%+ 2%(20% of 10)= 12% • I still have an 88% chance of not developing cancer/cvd

  5. How to report? • Ask for absolute risk reduction figures, or baseline risk figures.. • They help readers get a much better understanding of how big the risk is and how important the findings are.

  6. http://www.healthnewsreview.org/toolkit/tips-for-understanding-studies/absolute-vs-relative-risk/http://www.healthnewsreview.org/toolkit/tips-for-understanding-studies/absolute-vs-relative-risk/ • http://www.scidev.net/en/practical-guides/communicating-statistics-and-risk.html

  7. http://abcnews.go.com/Health/w_DietAndFitness/red-meat-tied-increased-mortality-risk/story?id=15901365#.T4OtB1E_9Dshttp://abcnews.go.com/Health/w_DietAndFitness/red-meat-tied-increased-mortality-risk/story?id=15901365#.T4OtB1E_9Ds • http://www.cbc.ca/news/health/story/2012/03/13/video-red-meat-risk.html • http://www.latimes.com/health/la-he-red-meat.eps-20120312,0,6280900.graphic • http://www.bbc.co.uk/news/health-17345967

  8. http://www.youtube.com/verify_age?next_url=/watch%3Fv%3D1duI_ycUORkhttp://www.youtube.com/verify_age?next_url=/watch%3Fv%3D1duI_ycUORk

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