May 16, 2012
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James McCormack

James McCormack: Can You Trust A Doctor With Your Heart?

Professor, Faculty of Pharmaceutical Sciences at the University of British Columbia

Have you been told by your health care professional that you have high blood pressure, high cholesterol or type 2 diabetes and you need to do something to improve your "numbers?" If so, it is likely their recommendations were based on national clinical practice guidelines written by experts in cardiovascular health.

On the face of it, following guidelines seems a very reasonable approach. What could be the problem? Well, a recent evaluation of cardiovascular patient guidelines in the Journal of the American Medical Association reveals that only 12 per cent of the recommendations are based on randomized controlled trials (the highest level of evidence). In contrast, 54 per cent of the recommendations are based purely on opinion and consensus.

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