Multiple lines of scientific evidence confirm that masks work. Whether you prefer physics, occupational health data, lab-based studies, behavioral data, or if you’re into epi, science has you covered.https://twitter.com/apoorva_nyc/status/1330287178639962112 …
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Agree. And of all ways to pursue the question of 'do masks work?', the population-level epi is the hardest. This study is good, and adds one more, and important, line of evidence, especially for those who often want to ignore physics in favor of 'real-world'
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Are you aware of any document summarizing the ecological evidence surrounding mask mandates which includes not just selective discussion of the studies which argue for one side of the issue but actually consider studies and observations on either side?
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You can also look at the death charts of the Tennessee counties, some never-mask, some early-mask, some late-mask.
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Has this been studied/published yet?
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This could still be confounded because counties opted out right? Maybe the counties who take this less seriously are the ones opting out and also doing other (potentially more important) risky behaviors.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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Would you have changed your mind if it came back the other way? There have been numerous correlation analyses, some finding an effect, and some not. This is not a good example of a "natural experiment" because there is no pseudo-randomization. 1/2
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E.g currently in the U.S., the states with the most cases have fewer mask mandates, but the states with the highest transmission rates (Rt) have the most mandates. It likely doesn't mean much other than the pandemic is affecting different parts of the country at different times.
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So ignore the fits?
End of conversation
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