Citat:
Undrar om det finns någon som lyssnar på Norman Fenton längre utanför det absolut värsta hardcore antivaccin-skranket. Jag tror inte det.'Never vaccinated' vs 'Ever vaccinated' mortality rate illusion
Survivor bias and how to overcome it
NORMAN FENTON
Claims of lower mortality rates for vaccinated may be just a statistical illusion
In a previous article, we described the concept of survivor bias in studies that claimed better outcomes for covid vaccinated women in pregnancy: since the greatest risk to babies occur early in pregnancy, the babies of women who are vaccinated during pregnancy must already have survived the riskiest period.
In fact, a similar survivor bias more generally affects mortality rates for the vaccinated. If you see a study claiming much higher mortality rates of the 'never vaccinated' versus the 'ever vaccinated' you need to be sure it's not just a statistical illusion due to survivor bias. This (7 minute) video provides an animated explanation:
https://wherearethenumbers.substack.com/p/never-vaccinated-vs-ever-vaccinated
Fully vaccinated är 21 dagar efter andra injektionen
"Second dose, at least 21 days ago"
Survivor bias and how to overcome it
NORMAN FENTON
Claims of lower mortality rates for vaccinated may be just a statistical illusion
In a previous article, we described the concept of survivor bias in studies that claimed better outcomes for covid vaccinated women in pregnancy: since the greatest risk to babies occur early in pregnancy, the babies of women who are vaccinated during pregnancy must already have survived the riskiest period.
In fact, a similar survivor bias more generally affects mortality rates for the vaccinated. If you see a study claiming much higher mortality rates of the 'never vaccinated' versus the 'ever vaccinated' you need to be sure it's not just a statistical illusion due to survivor bias. This (7 minute) video provides an animated explanation:
https://wherearethenumbers.substack.com/p/never-vaccinated-vs-ever-vaccinated
Fully vaccinated är 21 dagar efter andra injektionen
"Second dose, at least 21 days ago"
Det blir nästan pinsamt när han gång efter annan målar upp exempel på hur statistik är fel, när den officiella statistiken inte alls ser ut som han påstår. "Det blir en statistisk illusion om man gör si och så", säger han - men det är ingen som gör så.
Den officiella statistiken från ONS omfattar de personer som vaccinerats någon gång, och precis som andra påpekar omfattas man av den statistiken samma sekund man får FÖRSTA dosen.
Fenton har blivit debunkad så många gånger tidigare den här pandemin att han verkar desperat att försöka hitta något galet. Sist satt han och lade ut texten hos Campbell utan att inse att han gjorde bort sig.
Nästa tokstolle-miss han gör är att först bekräfta att ONS undviker "this kind of survivor bias", men påstår sedan att ONS gör sig skyldiga till annat bias som Fenton påstår sig ha förklarat. Problemet är bara att han inte alls förklarar vad det är ONS skulle gjort sig skyldiga till för bias.
Fenton är så oprofessionell att man börjar undra om han är senil eller om det vi ser är inledningen på demens?
Citat:
https://wherearethenumbers.substack.com/p/never-vaccinated-vs-ever-vaccinated
The ONS attempt to avoid survivor bias, but most reporting organisations and published studies do not
The ONS data on deaths by covid vaccine status uses person years to avoid this kind of survivor bias (although there are other biases not avoided in the ONS data as explained here). However, most studies and reports comparing mortality rates of vaccinated and unvaccinated (whether it is for covid deaths or all-cause deaths) fail to make the adjustment and are therefore overestimating the mortality rate of the unvaccinated while underestimating the mortality rate of the vaccinated.
The ONS data on deaths by covid vaccine status uses person years to avoid this kind of survivor bias (although there are other biases not avoided in the ONS data as explained here). However, most studies and reports comparing mortality rates of vaccinated and unvaccinated (whether it is for covid deaths or all-cause deaths) fail to make the adjustment and are therefore overestimating the mortality rate of the unvaccinated while underestimating the mortality rate of the vaccinated.
Herregud...
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Senast redigerad av korrektamund0 2024-01-28 kl. 17:36.
Senast redigerad av korrektamund0 2024-01-28 kl. 17:36.