3 ms·
Danish randomized controlled trial of mask effectiveness to prevent SARS-CoV-2
- sp332 6y agoInconclusive results, missing data, variable adherence, patient-reported findings on home tests, no blinding, and no assessment of whether masks could decrease disease transmission from mask wearers to others. I don't think doing the study was a waste of time or anything, but the results are inconclusive enough to be ignorable.