[anonsivalley652]

It's ~29000 deaths / 70M CT scans per year.

That's 414 micromorts, which is almost exactly as risky as skydiving once on average.

https://en.wikipedia.org/wiki/Micromort

Source: US NCI 2007

[semi-extrinsic]

Yeah, 1 in 2000 is 500 micromorts, somewhere in the 400-500 micromorts region.

[jonas21]

The wikipedia article says skydiving is 8 micromorts per jump. So more like skydiving 50 times?

[medymed]

I don’t think biologic math always works combinatorially like multiple sky dives.

This sometime troubles me with radiation dosing comparisons. Another is time distribution, when a radiologic imaging study is equated with exposure from X amount of time in an airplane at high altitude. The time frames are different—- drinking 1 liter of water in an hour is usually safe, and drinking 50 liters of water is fine spaced out over a longer time period—-but not 50 liters over an hour. Radiation doses are often quite time dense.