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. 2020 Mar 20;18(1):41.
doi: 10.1186/s12916-020-01514-z.

Trends in life expectancy: did the gap between the healthy and the ill widen or close?

Anna C Meyer  1 , Sven Drefahl  2 , Anders Ahlbom  3 , Mats Lambe  4   5 , Karin Modig  3
Affiliations

Trends in life expectancy: did the gap between the healthy and the ill widen or close?

Anna C Meyer et al. BMC Med. .

Abstract

Background: During the past decades, life expectancy has continued to increase in most high-income countries. Previous research suggests that improvements in life expectancy have primarily been driven by advances at the upper end of the health distribution, while parts of the population have lagged behind. Using data from the entire Swedish population, this study aims to examine the life expectancy development among subgroups of individuals with a history of common diseases relative to that of the general population.

Methods: The remaining life expectancy at age 65 was estimated for each year in 1998-2017 among individuals with a history of disease, and for the total Swedish population. We defined population subgroups as individuals with a history of myocardial infarction, ischemic or hemorrhagic stroke, hip fracture, or colon, breast, or lung cancer. We further distinguished between different educational levels and Charlson comorbidity index scores.

Results: Life expectancy gains have been larger for men and women with a history of myocardial infarction, ischemic or hemorrhagic stroke, and colon or breast cancer than for the general population. The life expectancy gap between individuals with a history of hip fracture or lung cancer and the general population has, however, been growing. Education and comorbidity have affected mortality levels, but have not altered the rate of increase in life expectancy among individuals with disease history. The female advantage in life expectancy was less pronounced among individuals with disease history than among the general population.

Conclusions: Life expectancy has increased faster in many subpopulations with a history of disease than in the general population, while still remaining at lower levels. Improvements in life expectancy have been observed regardless of comorbidity or educational level. These findings suggest that the rise in overall life expectancy reflects more than just improved survival among the healthy or the delayed onset of disease.

Keywords: Cancer; Cardiovascular diseases; Education; Epidemiology; Life expectancy; Population aging; Population health.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Trends in the remaining life expectancy at age 65 for subpopulations with a history of disease and the general Swedish population, 1998–2017
Fig. 2
Fig. 2
Trends in the remaining life expectancy at age 65 among subpopulations with a history of disease stratified by educational level and gender, 1998–2017
Fig. 3
Fig. 3
Trends in the remaining life expectancy at age 65 among subpopulations with a history of disease stratified by Charlson comorbidity index score and gender, 1998–2017
See this image and copyright information in PMC

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