Questions either on modeling COVID-19 (e.g., epidemiology), or on including COVID-19 as a predictor in models for other variables. Questions using this tag also should have another tag (or several) to indicate the statistical content.
Questions tagged [covid-19]
50 questions
8
votes
1 answer
Analyzing Pfizer Vaccine Efficacy: Testing a Claim about 2 Proportions
I teach Introduction to Statistics and would like to show my students how to analyze the Pfizer Phase 3 Vaccine results. Testing a claim about 2 proportions is straightforward with the Pfizer data:
Given:
Group (1) is the placebo group;
Group (2)…
2
votes
2 answers
What specific endpoint(s) were used in determining the efficacy of the Pfizer and Moderna Covid-19 vaccines during the FDA trials?
I have been searching over various articles and pages from the CDC and elsewhere, but I haven't yet found a specific description of what endpoint(s) were used to define efficacy in the FDA Covid-19 vaccine trials for the Pfizer or Moderna vaccines.…
twhitney
- 123
1
vote
0 answers
PCR vs Antigen Reliability Analysis
Disclaimer: I am not a statistician so be kind
I’ve been trying to work something out. There’s been so much speculation about how reliable PCR tests are and how unreliable antigen (or lateral flow) tests are.
It seems to me that the issue lies in…
Dan
- 83
0
votes
2 answers
Interpreting Vaccine Efficacy
Assume I have a high school statistics class under my belt:
One common misunderstanding is that 95% efficacy means that in the
Pfizer clinical trial, 5% of vaccinated people got COVID. But that's
not true; the actual percentage of vaccinated people…
gatorback
- 131