[kwhitefoot]

The patient is not interested in the effect on the average life expectancy of all people in society, they are only interested in their own case when they are diagnosed early enough to have treatment that will extend their life if they have cancer. This is a different sub-population.

[haldujai]

That's not the criteria for population level interventions. This is to answer the question of whether should the USPSTF make a positive recommendation and force insurers to pay or if public health systems should adopt this.

You're conflating this with individual patient decisions.