.@f2harrell, is this propensity-score perfection plausible?https://twitter.com/SteveJoffe/status/1280587235654598661 …
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That being said, the categories are fairly broad (I.e. "cardiovascular comorbidity") so it's not wildly unlikely that this was the case, just a bit weird. If it was my study and this had happened, I'd suspect a classification error of some sort
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