They define unvaccinated as anyone who wasn't vaccinated by Nov 2021. What if they got vaccinated afterwards?

biophysboy an hour ago | parent | next [-]

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.

	▲	biophysboy 30 minutes ago \| parent [-]
		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

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jmye 2 hours ago | parent | prev [-]

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?