A very, very impressive cluster randomized trial. Very hard to do! See thread for findings.https://twitter.com/Jabaluck/status/1433036923610742789 …
For that you need to read the whole study and understand what randomized cluster trials do and don't show. They are not like medical clinical trials where we essentially control the whole thing, and don't deal with overdispersion and ecological effects.
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So what do you think is the correct bottom line conclusion (as qualified) of this study in a few words? E.g.: "Surgical masks are better than cloth masks and they help reduce chance of infection when [_____]? Thanks!
Thanks. Twitter will use this to make your timeline better. UndoUndo
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