Comment by blindriver
3 hours ago
They define unvaccinated as anyone who wasn't vaccinated by Nov 2021. What if they got vaccinated afterwards?
3 hours ago
They define unvaccinated as anyone who wasn't vaccinated by Nov 2021. What if they got vaccinated afterwards?
This is specified as an exclusion criteria in the Supplementary.
No they didn't. They excluded those that got the vaccine pre-May 2021 or those that got another vaccine besides Pfizer or Moderna.
The target trial emulation specifies "individuals deceased or vaccinated during the 6 month grace period between the index date and the effective start of follow-up" as an exclusion criteria
What specific impact do you think that would have on this study? Do you think vaccines prior to Nov-2021 were safe and they were unsafe after? Do you think short term results, captured after Nov-2021 are more relevant than inclusive results prior?