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Peter R. Hansen Profile picture
Peter R. Hansen
@ProfPHansen
Econometrician and Latene Distinguished Professor in Economics at UNC, Chapel Hill. Previously: EUI, Stanford, Brown. Also: @ProfPHansen.bsky.social
Feb 3, 2022 • 13 tweets • 7 min read
"Lockdowns only reduced mortality by 0.2%" claims (unreviewed) meta study, and it is getting much press in @FoxNews and the like.

A #metastudy aggregate the entire body of evidence. This one is based on 18,590 studies.
So, 0.2% must be a credible estimate... Well. No so fast. 🧵 A meta study often begins with a large set of studies (18,590) then eliminates irrelevant studies, duplicates, etc.

This meta study ends up with 34 papers.

Thus 0.2% is based on 34 studies, right? Well, actually not. Image
Jun 24, 2021 • 8 tweets • 7 min read
Good idea @KasperKepp Let's bring international attention to this matter.

What do experts on #VaccineHesitancy and misinformation have to say about @StabellBenn claims about Covid19💉?

@DrPaulOffit @Rosewind2007 @doritmi @gorskon might recall earlier encounters.

Thread👇 ImageImageImageImage October 2020. @StabellBenn shares these views about the vaccine trials...
"Not tested against severe disease" stated in several 🇩🇰 tweets, with link to Peter Doshi opinion in @bmj_latest