Letters Data openness

Absolute v relative risk reduction

BMJ 2010; 341 doi: https://doi.org/10.1136/bmj.c6333 (Published 16 November 2010) Cite this as: BMJ 2010;341:c6333
  1. Paul E Norman, vascular surgeon
  1. 1University of Western Australia, WA 6009, Australia
  1. paul.norman{at}uwa.edu.au

Reported results from trials of screening for abdominal aortic aneurysms in men over 65 years provide another example of misleading communication of risk.1 All trials report a 40-50% …

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