A final central question is how much of the rise in disability-free life expectancy can be explained by increases in the use and efficacy of medical treatments.
26 years, or 15 percent, of the overall increase in disability-free life expectancy.
The aim of the present study was to determine whether the elimination of certain chronic diseases is capable of leading to the compression of morbidity among elderly individuals, in the city of Sao Paulo (Brazil), through an analysis of changes in life expectancy and disability-free life expectancy.
The results demonstrate that the elimination of chronic diseases would lead to gains in disability-free life expectancy between the ages of 60 and 74 years and at 75 years of age or older.
Regional patterns of disability-free life expectancy
and disability-adjusted life expectancy: Global Burden of Disease Study.
And the disability-free life expectancy figure was based on responses to the question, "Do you have any long-term illness, health problem or disability that limits your day-to-day life?
The disparity between the healthy life expectancy and disability-free life expectancy figures arises because, while some people may have a chronic illness or a disability, they may still consider their general health to be good.