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Results:
A total of 3030 participants were randomly assigned to the recommendation to wear masks, and 2994 were assigned to control; 4862 completed the study. Infection with SARS-CoV-2 occurred in 42 participants recommended masks (1.8%) and 53 control participants (2.1%). The between-group difference was −0.3 percentage point (95% CI, −1.2 to 0.4 percentage point; P = 0.38) (odds ratio, 0.82 [CI, 0.54 to 1.23]; P = 0.33). Multiple imputation accounting for loss to follow-up yielded similar results. Although the difference observed was not statistically significant, the 95% CIs are compatible with a 46% reduction to a 23% increase in infection.
Multiple imputation accounting for loss to follow-up yielded similar results. Although the difference observed was not statistically significant, the 95% CIs are compatible with a 46% reduction to a 23% increase in infection.
特にここ
都会の中高生が電車の中でちゃんとマスクをつけていること。 男子高生なんて年頃だけに無理だろと思っていたのに、 彼ら鼻出しもせずみんなきっちりマスクつけてる。 偉いもんだな...
デンマークの実験ではマスクなし群とあり群で感染率に有意差はないそうです。子供に常時マスクさせてなんとも思わない神経は私には理解しがたいです。日本人のマスク信仰は異常だ...
Results: A total of 3030 participants were randomly assigned to the recommendation to wear masks, and 2994 were assigned to control; 4862 completed the study. Infection with SARS-CoV-2 occurred in 42 participants recommended masks (1.8%) and 53 con...
ソースは？
はいイスラム差別
ググったけど 「この調査をマスクの無効性を主張するために使わないで欲しい」旨が記載されていてうんぬんかんぬんらしいやん
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