Most Large Treatment Effects of Medical Interventions Come from Small Studies, Report Finds

by Dr. Phil on October 24, 2012

A report in Science Daily reviewed a study in the October 24/31 issue of JAMA. The study examined  the characteristics of studies that yield large treatment effects from medical interventions. The researchers found that these studies were more likely to be smaller in size, often with limited evidence. Interestingly,  when additional trials were performed, the effect sizes usually became much smaller. Read more here.

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