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Forum nameGeneral Discussion
Topic subjectStats like this are confusing to me...
Topic URLhttp://board.okayplayer.com/okp.php?az=show_topic&forum=4&topic_id=13448755&mesg_id=13449932
13449932, Stats like this are confusing to me...
Posted by soulfunk, Tue Dec-14-21 10:44 AM
>Real-world data suggest 2 doses of Pfizer vaccine 70%
>effective at preventing hospitalization with Omicron variant
>
>Note from me: Not 70% against infection.

I read the article but didn't see the detail there - 70% of what? In other words, is this saying that 30% of people who had 2 Pfizer vaccine doses but got breakthrough cases of Omicron ended up in the hospital, while 70% or those with 2 Pfizer vaccine doses that got breakthrough cases didn't end up in the hospital with Omicron? (In this case 100% of those in the study would have gotten breakthrough cases.)

Or is it saying that 70% of those with 2 Pfizer doses didn't go to the hospital (separate from accounting for protection against breakthrough cases - so in this case an unknown percentage of those in the study would have gotten breakthrough cases, while the rest of those vaccinated didn't get Covid at all.)

Or is it saying that 2 Pfizer doses are 70% as effective against hospitalization for Omicron vs against prior variants of Covid like Delta?