I'd assume because cataloguing every piece of bias for each study would push the document out into 10,000s of pages. Most bias questionnaires are ~3 pages at least
It comes back to the point - what is bias? What is industry influence? How does it affect trials? Your claim is that it makes trials entirely worthless and not worth considering at all. I find that idea unsupported by best evidence
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How much evidence is enough to change practice? Bc IMO there is more than enough to support such a research question. That aside, I’m quite sure if we put such a question to public vote (bc it’s everyone’s food supply) there’d be enough interest to investigate.
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We know wat bias is, we know how to identify it, we know how to interpret.....none of this precludes posing a research question to be answered. If we applied your “but bias” to every research question, Cochrane would not exist.
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