16/n The primary outcome reported in the trial was laboratory-confirmed (through either PCR or serology) COVID-19. This is the measure that the headline results is based onpic.twitter.com/R2Uj9MhpHc
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27/n Apologies, one of the above tweets is wrong. The authors did indeed take into account the clustering in their statistical analysishttps://twitter.com/jt_kerwin/status/1386920483916947464?s=20 …
28/n The more I read this paper, the weirder it sounds. So they randomized ineligible people (how?) from two floors that were not clustered, and then assigned them to vitamin C if the other medications were contraindicated?https://twitter.com/salonium/status/1386922872317247489?s=20 …
They... changed the entire trial around their outcomes? Seems legit.
The trial is informative as to the way Singapore houses migrant workers - about 6m² of space each including shared spaces.
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