News for hackers. Stuff that matters.

A comment on Effectiveness of Mask Recommendation to Prevent SARS-CoV-2 (Randomized trial). Parent comment

Re:Effectiveness of Mask Recommendation to Prevent SARS-CoV-... by sterlind on Wednesday November 18, 2020 @03:54PM (#25142318)
How many people in the control group wore masks? It's not like they were told not to wear masks, they just weren't told to.

Edit: it actually looks like the study doesn't include that statistic at all, which is appallingly poor design.

[ Parent | on HN ]
Re:Effectiveness of Mask Recommendation to Prevent SARS-CoV-... by goto11 on Wednesday November 18, 2020 @05:53PM (#25143694)
> It's not like they were told not to wear masks, they just weren't told to.

Why do you think that? The study says "A total of 3030 participants were randomly assigned to the recommendation to wear face masks, and 2994 were assigned not to wear face masks".

[ Parent | on HN ]
Re:Effectiveness of Mask Recommendation to Prevent SARS-CoV-... by censorshipsci on Wednesday November 18, 2020 @04:14PM (#25142519)
Did you check the supplemental materials?
[ Parent | on HN ]