Healthy life expectancy

Healthy life expectancy is defined as the number of years a person is expected to live in good health at a certain age.
The number of ‘healthy years’ is calculated on the basis of the question: 'How would you describe your general state of health?' People who answer this question with 'good' or 'very good' are defined as healthy.

Data on perceived health are included in the Integrated System of Social Surveys (POLS). As POLS is a sample survey, the results are subject to a margin of error.