Trust the Evidence

Trust the Evidence

Let's all Join the Massachusetts Medical Society

And make loadsa cash.

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Carl Heneghan
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Tom Jefferson
Nov 13, 2024
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The New England Journal of Medicine (NEJM) is among the most influential medical journals, with a Journal Impact Factor of 96. Along with journals such as the Lancet, it is the home to industry publications, which dominate its research section. 

When JAMA set a requirement for independent statistical analysis for industry-funded trials in July 2005, they published significantly fewer RCTs and industry-funded RCTs.  The beneficiaries of this policy included NEJM, whose proportion of industry publications rose to 56%.  There have also been concerns about NEJM's resistance to data sharing, which is crucial for independent verification of trial results, and its open resistance to dealing with conflicts of interest. 

Despite its emphasis on rigour, NEJM articles in Retraction Watch’s database number 25 retractions. 

The latest paper found that “ambulatory blood-pressure measurements were a stronger predictor of all-cause and cardiovascular mortality than clinic blood-pressure measurements.” C…

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