dcd2103 said...
Yah i was rude. Sorry about that, I dont get angry often but it seemed like you were purposely screwing with me.
But your example makes no sense. What does that even mean for 20 people to get it "at the end of the study"? What like at the last split second of the study 20 people get it lol
If the study is 6m, and 10 people get covid during/while/over-the-length of/by-the-end-of that 6m, then 10 people got covid. There's nothing else any of these things can mean, and quite frankly I have no idea what youre even talking about or where that extra 20 people "at the end" comes from or what that even means.
I am not screwing you, i am trying to help you. By your words, i assume you really have no clue of what i am saying and i believe you. It seems you don't read many trials theses days.. Let me give you an example with this trial sample:
In this case it was necessary to obtain the results of deaths:
"During the study" the number of deaths are obtained, but it is only at the
"end of the study" that we obtain how many many participants survived. Meaning, in this trial sample there were participants who
"Died during the study period" and participants that were
"Alive at the end of the study period". We clearly see the difference between the two. If you cant see that, i cannot help you here, sorry.
https://www.ncbi.nlm.nih.gov/pmc/articles/pmc6082166/dcd2103 said...
In addition, my point on the timing is that you were saying that the absolute risk reduction is small...but that absolute risk number is calculated over THE LENGTH OF THE STUDY. If the study is 3m for example, then that absolute risk number you were pointing to grossly underestimates the risk of covid, and the benefits of a vaccine, for someone who needs to live for years in a world where covid exsits. Before you argue with this, just think about it...a 3m study will produce a far smaller "absolute risk" than a 2y study.
Dcd, please try to memorize this, there is
no length of time/period factor in the risk reduction calculation, but there is no harm in learning, here it goes:
AR (absolute risk) = the
number of events (good or bad) in treated or control groups, divided by the
number of people in that group.
ARC = the AR of events in the control group.
ART = the AR of events in the treatment group.
ARR (absolute risk reduction) = ARC – ART.
RR (relative risk) = ART / ARC.
No "length of time" in any of the variables whatsoever. Anyone can figure this out..
Post Edited (isitlyme) : 4/19/2021 6:12:30 PM (GMT-6)