Holy hell, FDA Commissioner Stephen Hahn& #39;s grasp of statistics is alarming. A 35% reduction in mortality does NOT mean that if 100 people get covid-19 and are treated with convalescent plasma, then 35 lives will be saved.

The head of the federal agency in charge of authorizing new medical treatments doesn& #39;t understand what reduction in mortality means. How can we trust anything the FDA does, if this is the guy who decides whether the agency will bow to political pressure? https://twitter.com/susancrabtree/status/1297652743843147776?s=19">https://twitter.com/susancrab...

This appears to be the data @SteveFDA was citing, but unable to understand. A plasma study (with no comparison group) found the treatment reduced the 7-day death rate from 11.9% to 8.7% – which Hahn interpreted to mean that 35 in 100 lives would be saved! h/t @taylorcyoung

And now the FDA& #39;s Twitter account is promoting Hahn& #39;s disinfo.

Full quote from Hahn: "Let me just put that in perspective... What that means is if... 100 people who are sick with covid-19, 35 would have been saved because of the administration of plasma." https://twitter.com/US_FDA/status/1297662384060981248?s=19">https://twitter.com/US_FDA/st...