Changes in life expectancy 1950–2010: contributions from age- and disease-specific mortality in selected countries

Jochen Klenk, Ulrich Keil, Andrea Jaensch, Marcus Christiansen, Gabriele Nagel

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Abstract

Background
Changes of life expectancy over time serve as an interesting public health indicator for medical, social and economic developments within populations. The aim of this study was to quantify changes of life expectancy between 1950 and 2010 and relate these to main causes of death.

Methods
Pollard’s actuarial method of decomposing life expectancy was applied to compare the contributions of different age- and disease-groups on life expectancy in 5-year intervals.

Results
From the 1960 to 70s on, declines in cardiovascular disease (CVD) mortality play an increasing role in improving life expectancy in many developed countries. During the past decades gains in life expectancy in these countries were mainly observed in age groups ≥65 years. A further consistent pattern was that life expectancy increases were stronger in men than in women, although life expectancy is still higher in women. In Japan, an accelerated epidemiologic transition in causes of death was found, with the highest increases between 1950 and 1955. Short-term declines and subsequent gains in life expectancy were observed in Eastern Europe and the former states of the Union of Soviet Socialist Republics (USSR), reflecting the changes of the political system.

Conclusions
Changes of life years estimated with the decomposing method can be directly interpreted and may therefore be useful in public health communication. The development within specific countries is highly sensitive to changes in the political, social and public health environment.

Keywords
Life expectancy Mortality Gender Age Cause-specific Decomposition
Original languageEnglish
Article number20
JournalPopulation Health Metrics
Volume14
DOIs
Publication statusPublished - 23 May 2016

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