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HOW FUNCTIONAL DATA CAN ENHANCE THE ESTIMATION OF HEALTH EXPECTANCY: THE CASE OF DISABLED SPANISH POPULATION

Part of: Applications Statistics Multivariate analysis

Published online by Cambridge University Press:  22 November 2018

Irene Albarrán ,
Pablo J. Alonso-González ,
Ana Arribas-Gil  and
Aurea Grané Open the ORCID record for Aurea Grané [Opens in a new window]
Irene Albarrán
Affiliation:
Statistics Department, Universidad Carlos III de Madrid, C/Madrid 126, 28903 Getafe, Spain E-Mail: irene.albarran@uc3m.es
Pablo J. Alonso-González
Affiliation:
Economics Department, Universidad de Alcalá, Plaza de la Victoria 2, 28802 Alcalá de Henares, Spain E-Mail: pablo.alonsog@uah.es
Ana Arribas-Gil
Affiliation:
UC3M-BS Institute of Financial Big Data, C/Madrid 135, 28903 Getafe, Spain E-Mail: ana.arribas@uc3m.es
Aurea Grané*
Affiliation:
Statistics Department, Universidad Carlos III de Madrid, C/Madrid 126, 28903 Getafe, Spain E-Mail: aurea.grane@uc3m.es
*
E-Mail: aurea.grane@uc3m.es
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Abstract

The aging of population is perhaps the most important problem that developed countries must face in the near future. Dependency can be seen as a consequence of the process of gradual aging. In a health context, this contingency is defined as a lack of autonomy in performing basic activities of daily living that requires the care of another person or significant help. In Europe in general and in Spain in particular, this phenomena represents a problem with economic, political, social and demographic implications. The prevalence of dependency in the population, as well as its intensity and evolution over the course of a person’s life are issues of greatest importance that should be addressed. The aim of this work is the estimation of life expectancy free of dependency (LEFD) based on functional trajectories to enhance the regular estimation of health expectancy. Using information from the Spanish survey EDAD 2008, we estimate the number of years spent free of dependency for disabled people according to gender, dependency degree (moderate, severe, major) and the earlier or later onset of dependency compared to a central trend. The main findings are as follows: first, we show evidence that to estimate LEFD ignoring the information provided by the functional trajectories may lead to non-representative LEFD estimates; second, in general, dependency-free life expectancy is higher for women than for men. However, its intensity is higher in women with later onset on dependency; Third, the loss of autonomy is higher (and more abrupt) in men than in women. Finally, the diversity of patterns observed at later onset of dependency tends to a dependency extreme-pattern in both genders.

Keywords

ADLcox regressiondependencydisabilityfunctional data

MSC classification

Primary: 62-07: Data analysis
Secondary: 62-09: Graphical methods 62H20: Measures of association (correlation, canonical correlation, etc.) 62H99: None of the above, but in this section 62P05: Applications to actuarial sciences and financial mathematics
Type
Research Article
Information
ASTIN Bulletin: The Journal of the IAA , Volume 49 , Issue 1 , January 2019 , pp. 57 - 84
Copyright
Copyright © Astin Bulletin 2018 

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