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Showing posts with label Alzheimer's. Show all posts
Showing posts with label Alzheimer's. Show all posts

Wednesday, 10 January 2018

Chinese herbs for Alzheimer’s disease? An excellent example of how fatally flawed research misleads us all

Can conventional therapy (CT) be combined with herbal therapy (CT + H) in the management of Alzheimer’s disease (AD) to the benefit of patients? This was the question investigated by Chinese researchers in a recent retrospective cohort study funded by grants from China Ministry of Education, National Natural Science Foundation of China, Beijing Municipal Science and Technology […]

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Thursday, 25 June 2015

Acupuncture for Alzheimer’s? | Edzard Ernst

One could define alternative medicine by the fact that it is used almost exclusively for conditions for which conventional medicine does not have an effective and reasonably safe cure. Once such a treatment has been found, few patients would look for an alternative. Alzheimer’s disease (AD) is certainly one such condition. Despite intensive research, we are […]

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Monday, 14 July 2014

What is meant by the "accuracy" of screening tests?

The two posts on this blog about the hazards of significance testing have proved quite popular. See Part 1: the screening problem, and Part 2: Part 2: the false discovery rate. They’ve had over 20,000 hits already (though I still have to find a journal that will print the paper based on them).

Yet another Alzheiner’s screening story hit the headlines recently and the facts got sorted out in the follow up section of the screening post. If you haven’t read that already, it might be helpful to do so before going on to this post.

This post has already appeared on the Sense about Science web site. They asked me to explain exactly what was meant by the claim that the screening test had an "accuracy of 87%". That was mentioned in all the media reports, no doubt because it was the only specification of the quality of the test in the press release. Here is my attempt to explain what it means.


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