(THREAD) misleading results from subgroup analysis combined with regression to the mean in crossover RCT’s. Pull up a chair, let’s have a chat.pic.twitter.com/jA86IV1CRD
I'm confused. Unless I'm mistaken, that's not the definition of OSA. Could this perhaps be a bit of selective data slicing?pic.twitter.com/JLorPwQRUk
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I don’t think it’s quite that nefarious. I just don’t think the authors really get why what they did introduces such a bias.
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Fair enough. It's just a weird definition of OSA as far as I'm aware, usually you'd go with either 5 or 15
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