Predicting depression in old age: Combining life course data with machine learning

Carlotta Montorsi, Alessio Fusco, Philippe Van Kerm and Stéphane P.A. Bordas

Economics & Human Biology, 2024, vol. 52, issue C

Abstract: With ageing populations, understanding life course factors that raise the risk of depression in old age may help anticipate needs and reduce healthcare costs in the long run. We estimate the risk of depression in old age by combining adult life course trajectories and childhood conditions in supervised machine learning algorithms. Using data from the Survey of Health, Ageing and Retirement in Europe (SHARE), we implement and compare the performance of six alternative machine learning algorithms. We analyse the performance of the algorithms using different life-course data configurations. While we obtain similar predictive abilities between algorithms, we achieve the highest predictive performance when employing semi-structured representations of life courses using sequence data. We use the Shapley Additive Explanations method to extract the most decisive predictive patterns. Age, health, childhood conditions, and low education predict most depression risk later in life, but we identify new predictive patterns in indicators of life course instability and low utilization of dental care services.

Keywords: Depression; Life course data; Machine learning; Ageing population; SHARE (search for similar items in EconPapers)
JEL-codes: C53 C55 I14 I31 (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ehbiol:v:52:y:2024:i:c:s1570677x23001120

DOI: 10.1016/j.ehb.2023.101331

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