The article has an updated section on that question.
>I asked Robert Ohsfeldt about this, who responded that the adjustment factor was based on fatal injury rates relative to the average. Hence, the adjusted numbers shouldn’t be seen as hard numerical estimates of life expectancy, but rather as a way of understanding the true relative ranking of the various countries on life expectancy excluding fatal injuries.
>I asked Robert Ohsfeldt about this, who responded that the adjustment factor was based on fatal injury rates relative to the average. Hence, the adjusted numbers shouldn’t be seen as hard numerical estimates of life expectancy, but rather as a way of understanding the true relative ranking of the various countries on life expectancy excluding fatal injuries.