Simpson’s “Paradox” and Mortality Rates of the COVID-19 Vaccinated Versus Unvaccinated

If you’ve read much of this blog, you realize I am untrusting and skeptical of much of the COVID-19 narrative. However, that doesn’t mean that I can be credulous about counter-claims, just because they confirm my take.

For instance, Nassim Nicholas Taleb responds to the “fact” that the mortality rates for the vaccinated are higher than the unvaccinated:

The punch line:

It’s a statical artifact and when is it, you know, misleading? When the bracket is very large and you don’t have homogeneous populations…and you have uneven, the solution, of the population, between the two samples.

Taleb tweet(I hope I transcribed that correctly.)

Basically, with COVID-19, if the vaccinated population is heavy on folks who die at a much higher rate (the elderly) and the unvaccinated is heavy on those who do not (the young), then Simpson’s “Paradox” kicks in. Overall, the mortality rate for the vaccinated can seem higher, even though at smaller brackets (e.g. 10 year age bands) it is the reverse.

Now, I haven’t seen the underlying data, so I cannot confirm what Taleb says, other than his statistical logic is sound…and that I have found him to be a trustworthy fellow who goes where the mathematics takes him.

Oh, and I have personally seen something similar in some data analysis I had to do months back. In certain locations, it appeared a minority population was being underserved in vaccination statistics, but it was less so when you took into account age. (That minority population in those areas was younger than the non-minority one, there was a huge push to vaccinate the elderly, and vaccinations weren’t even open to some of the younger age brackets.)

Remember folks, lies, damn lies, and statistics. Unless, of course, you use statistics carefully and honestly.

Update:

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