Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/123375
Title: | Advanced analytical methodologies for measuring healthy ageing and its determinants, using factor analysis and machine learning techniques: the ATHLOS project |
Author: | Caballero Díaz, Francisco F. Soulis, Georges Engchuan, Worrawat Sánchez Niubò, Albert Arndt, Holger Ayuso Mateos, José Luis Haro Abad, Josep Maria Chatterji, Somnath Panagiotakos, Demosthenes B. |
Keywords: | Envelliment de la població Estadística Estudi de casos Salut pública Qualitat de vida Population aging Statistics Case studies Public health Quality of life |
Issue Date: | 10-Mar-2017 |
Publisher: | Nature Publishing Group |
Abstract: | A most challenging task for scientists that are involved in the study of ageing is the development of a measure to quantify health status across populations and over time. In the present study, a Bayesian multilevel Item Response Theory approach is used to create a health score that can be compared across different waves in a longitudinal study, using anchor items and items that vary across waves. The same approach can be applied to compare health scores across different longitudinal studies, using items that vary across studies. Data from the English Longitudinal Study of Ageing (ELSA) are employed. Mixed-effects multilevel regression and Machine Learning methods were used to identify relationships between socio-demographics and the health score created. The metric of health was created for 17,886 subjects (54.6% of women) participating in at least one of the first six ELSA waves and correlated well with already known conditions that affect health. Future efforts will implement this approach in a harmonised data set comprising several longitudinal studies of ageing. This will enable valid comparisons between clinical and community dwelling populations and help to generate norms that could be useful in day-to-day clinical practice. |
Note: | Reproducció del document publicat a: https://doi.org/10.1038/srep43955 |
It is part of: | Scientific Reports, 2017, vol. 7, p. 43955 |
URI: | http://hdl.handle.net/2445/123375 |
Related resource: | https://doi.org/10.1038/srep43955 |
ISSN: | 2045-2322 |
Appears in Collections: | Articles publicats en revistes (Medicina) |
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