stavmanr έγραψε: 29 Μαρ 2021, 11:54
enaon έγραψε: 29 Μαρ 2021, 11:30
3.4 λέγανε όταν έλεγε 0.1, δειχνανε και εικόνες απο ανθρώπους που πέφταν ξεροί ενώ περπατούσαν, καλυτερα που τα ξέχασες.
Υπάρχει μπέρδεμα της θνητότητας με τη θνησιμότητα.
- Η θνησιμότητα είναι θάνατοι ανά 100 κατοίκους.
- Η θνητότητα είναι θάνατοι ανά 100 κρούσματα.
Ωραία, ας μιλήσουμε για θνητότητα λοιπόν.
Πως σου φαίνεται το παρακάτω;
The case fatality rate (CFR)
But it’s important to note that it is the ratio between the number of confirmed deaths
from the disease and the number of
confirmed cases, not total cases. That means that it is not the same as – and, in fast-moving situations like COVID-19, probably not even very close to – the true risk for an infected person.
The infection fatality rate, or IFR.
The IFR is the number of deaths from a disease divided by the total number of cases. If 10 people die of the disease, and 500 actually have it, then the IFR is [10 / 500], or 2%.3,4,5,6,7
To work out the IFR, we need two numbers: the total number of cases and the total number of deaths.
However, as we explain here, the total number of cases of COVID-19 is not known. That’s partly because not everyone with COVID-19 is tested.8,9
We may be able to estimate the total number of cases and use it to calculate the IFR – and researchers do this. But the total number of cases is not known, so the IFR cannot be accurately calculated.
And, despite what some media reports imply, the CFR is not the same as – or, probably, even similar to – the IFR.
Και ακολουθούν τα ωραία
You can see that in the earliest stages of the outbreak the CFR was much higher: 17.3% across China as a whole (in yellow) and greater than 20% in the centre of the outbreak, in Wuhan (in blue).
But in the weeks that followed, the CFR declined, reaching as low as 0.7% for patients who first showed symptoms after February 1st.
0,7% το cfr, όχι το ifr.
Φαντάσου λοιπόν πόσο θα είναι το ifr
https://ourworldindata.org/mortality-risk-covid