Excerpt from the above article:
The top table shows that the risk of Covid death was consistently higher in unvaccinated than in vaccinated – a positive ‘vaccine effect’ – but the surprising result is revealed in the bottom table: that was also the case for non-Covid death! The mortality rate from non-Covid causes in 4,114 unvaccinated residents of nursing homes in Israel was three to seven times the mortality rate in their vaccinated counterparts, depending on the follow-up time. Or vice versa — the mortality rate from non-Covid causes was substantially lower in nursing home residents who were vaccinated against Covid. That astonishing result is seen early on, within one month of the first dose.
Does the Pfizer vaccine protect against death from non-Covid causes?
We have yet to hear someone making the claim.
If not, what is the explanation?
It is simple and not astonishing at all. The decision of whom not to vaccinate was not random. It must have been based on reasonable medical considerations, particularly life expectancy. For instance, what is the merit of vaccinating a 90-year-old who suffers from advanced dementia and metastatic cancer?
Those 4,114 unvaccinated residents were sicker to begin with. Their life expectancy was shorter, regardless of possible SARS-CoV-2 infection, and that’s why their non-Covid mortality was several fold higher.
Stated differently, belonging to the unvaccinated group was a general marker of poorer health. Or vice versa — belonging to the vaccinated group was a marker of better health. That’s on average, of course.
The phenomenon we observe here is called the ‘healthy vaccinee’ bias, and it is well documented in the research literature, dating back to flu vaccines. The bias is very strong in frail elderly residents of nursing homes, but it is seen in all age groups of the general population.
The implication of the ‘healthy vaccinee’ phenomenon — when estimating vaccine effectiveness — is called confounding bias. A naïve comparison of Covid mortality in vaccinated people and unvaccinated people, even if age-adjusted, is grossly misleading because the latter have higher risk of death to begin with. At least part of their higher Covid mortality, if not all, has nothing to do with not being vaccinated. They are simply sicker people.