Mista
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Data is data regardless of size, it could also skew the other way, with a bigger dataset, the less death.
That's why I said confidence level is the lowest, because the results could easily be skewed by any more or less single death.
It's also true that Sinopharm was rolled out only in Sept, compared to Pfizer in January. Deaths were collected throughout 12 months for Pfizer, while only 3 months for Sinopharm. Also considering that it takes time to be fully vaccinated, most recipients of Sinopharm are probably considered fully vaccinated for only 1 or 2 months in 2021, a very short period to collect reliable data. It also ignores the general waning of vaccine efficacy.