Related Experiment Video
Updated: Aug 10, 2026

Measurement of Lifespan in Drosophila melanogaster
Published on: January 7, 2013
Trends in health expectancy in Denmark, 1987-1994
1Danish Institute for Clinical Epidemiology, Copenhagen.
Objective:
To estimate health expectancy in Denmark and evaluate changes during the period 1987-1994.
Design:
Life-table figures from vital statistics combined with prevalence data of population health status derived from the Danish Health Interview Surveys carried out in 1987, 1991, and 1994.
Setting And Subjects:
The Danish population aged 16 years and over.
Main Outcome Measures:
Health expectancy calculated by Sullivan's method combining mortality and morbidity into a single indicator. This indicator estimates the average lifetime in good health. Relating health expectancy to life expectancy gives a measure of the proportion of lifetime in good health.
Results:
Although life expectancy has remained stable since the beginning of the 1980s health expectancy has changed slightly over the period 1987-1994, with a positive trend for men but a negative one for women.
Conclusion:
The results underline the concern about the health of Danish women expressed in recent years. Health expectancy could be increased by successful prevention of musculo-skeletal diseases, which account for the highest proportion of lifetime with long-standing illness.
Related Concept Videos
Life Histories
Longitudinal Research
Pharmacodynamics in Geriatric Patients: Effects of Age
Life Tables
Actuarial Approach
Consider the example of a high-risk surgical procedure with significant early-stage mortality. A two-year clinical study is conducted,...
Applications of Life Tables

