Finland now has a number for capacity, not just lifespan: 42.9 years for men, 46.1 for women

Start with the units, because they decide the size of the finding. Productivity-adjusted life expectancy is quoted for a 20-year-old and counts forward from age 20 ^[3]. A 20-year-old Finnish man expected to reach about 80 therefore has 60 years ahead of him ^[13], and his productivity-adjusted expectancy is 42.9 ^[3]. The gap is 17.1 years ^[9]. For women it is 65 remaining years against 46.1, so 18.9 ^[9]. Subtracting a residual from a total age gives the tidier 37.1 and 38.9 ^[14], and that arithmetic quietly bills people for two decades the 2024 survey never sampled, since it covered ages 20 to 79 ^[2].

The honest version is still large. Roughly 28.5 percent of a Finnish man's remaining adult lifespan and 29.1 percent of a woman's is expected to be lost to health-related limits on functioning and work ^[10]. That is the number a planner can act on, because it is expressed in the same denominator as a working life.

There is a second thing hiding in the ratio. Divide productivity-adjusted years by remaining years and you get an implied average coefficient of 0.715 for men and 0.709 for women ^[11]. The measured cross-sectional index for the adult population was 0.77 overall, 0.78 for men and 0.76 for women ^[4]. The implied lifetime figures sit 0.065 and 0.051 below those ^[12], which is what you would expect if the capacity losses are concentrated in the later years of the interval rather than spread evenly across it. Anyone using the population average as a stand-in for a cohort's whole future is flattering the forecast.

What makes the measure usable is the choice of what counts as productive. Senior researcher Piia Lavikainen, the study's principal investigator, says health economic evaluations usually treat ill health through the lens of paid employment, and that the team deliberately included household work, caregiving and other unpaid activity whose value does not show up in gross domestic product ^[6]. So the deficit is not a labour-market statistic. It covers the unpaid work that a sick 70-year-old also stops doing, which is precisely the part that gets shifted onto someone else rather than deleted.

The researchers present the norm values as a benchmark: age- and sex-specific reference levels against which disease-related losses can be measured, alongside uses in costing disease burden, comparing population groups and evaluating health and welfare policy ^[7]. That framing is the practical payoff. A claim that a condition costs some number of productive years now has a general-population line to be scored against, instead of an assertion.

Two limits are worth keeping in view. The values come from a single self-reported survey of 3,644 adults ^[2], and the comparability that Professor Janne Martikainen describes as the point of the exercise ^[8] depends on Australia and Canada, which have published similar norms ^[5], having measured the same construct the same way.