Beyond Hazard Ratios: Translating Health Risks into Real Life Expectancy

Life with Hazard Ratios

I explain why hazard ratios often mislead us about health interventions and how to convert them into meaningful life expectancy changes. While simple math fails, a specific curve for modern humans allows us to estimate that a hazard ratio of 0.75 might add nearly four years to your life, offering a clearer picture of what these statistics truly mean for longevity.

"If you were to remove one of those two bullets, that would drop the person's risk of death by HR = 0.5, but life expectancy would barely change because even with just one bullet, almost nobody would survive for any significant amount of time."