RMS Modeling Longitudinal Responses

data analysis models
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Great, thank you.

I’m critically appraising this article for a systematic review using the CHAMP checklist https://bjsm.bmj.com/content/55/18/1009.2.

My concern is that what the authors of this study did invalidates their analysis/results, according to items 8 and 9 from CHAMP.

I wonder whether that’s a fair conclusion from my part. Or perhaps I could be more lenient…

What’s your take on this, Professor @f2harrell?

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Saying it invalidates the findings sounds like being too hard on the paper. Their approach may not be the best, but that doesn’t mean it’s not valid. I sent you a DM @FurlanLeo

Edit: just noticed the Q was addressed to FH, sorry for stepping in

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I’m glad you stepped in, and I concur.

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