The bigger point is that RCDs only are considered the “gold standard” in a limited set of circumstances in which they are feasible. Not being able to assess a public health intervention with a RCD does not mean that we lack evidence of its efficacy.
How about this. I've written, oh, around 100,000 words on confounding over the last few years. Have a read of some of that, and then get back to me about whether it's a bit funny that you brought it up as a novel thought that I probably hadn't consideredhttps://gidmk.medium.com/
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I mean, either I'm defensive or you cannot recognize sarcasm when it is hilariously obvious




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