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Related Experiment Videos

Steep increase in best-practice cohort life expectancy.

Vladimir M Shkolnikov¹, Dmitri A Jdanov, Evgeny M Andreev

¹Max Planck Institute for Demographic Research, Rostock.

Population and Development Review

|December 15, 2011

Summary

Female life expectancy has significantly increased, with gains accelerating for recent birth cohorts. Longer lifespans mean more years lived past age 65, altering life cycle stages.

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Area of Science:

Demography
Mortality Studies
Public Health

Background:

Analyzing trends in best-practice life expectancy for female cohorts born between 1870 and 1950.
Investigating the relationship between cohort and period life expectancy, noting cohort life expectancy typically exceeds period life expectancy.
Utilizing the Lee-Carter model to estimate unobserved mortality rates for non-extinct cohorts from 1960 to 2008.

Observation:

Best-practice cohort and period life expectancies show a near-linear increase over time.
The annual increase in cohort length of life was 0.43 years for cohorts born 1870-1920.
Cohort life expectancy rose from 53.7 years (1870 cohort) to 83.8 years (1950 cohort).

Findings:

The gap between cohort and period longevity widened from 1.2 to 10.3 years.
Younger cohorts exhibit substantially higher survival rates to advanced ages than predicted by earlier period mortality data.
A significant portion of increased life expectancy is concentrated at ages 65 and older.

Implications:

Future population aging and healthcare needs require re-evaluation due to extended lifespans.
Retirement planning and social security systems may need adjustments to accommodate longer life expectancies.
Understanding these demographic shifts is crucial for public health policy and resource allocation.