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Longitudinal association between lifetime workforce participation and risk of self-reported cognitive decline in community-dwelling older adults

BACKGROUND: Although many governments are promoting workforce participation (WP) by older people, evidence of WP’s effects on active aging is inadequate. We examined whether there is a gender-specific beneficial effect of lifetime WP from adulthood though old age against self-reported cognitive decl...

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Autores principales: Tomioka, Kimiko, Kurumatani, Norio, Saeki, Keigo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7279604/
https://www.ncbi.nlm.nih.gov/pubmed/32511273
http://dx.doi.org/10.1371/journal.pone.0234392
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author Tomioka, Kimiko
Kurumatani, Norio
Saeki, Keigo
author_facet Tomioka, Kimiko
Kurumatani, Norio
Saeki, Keigo
author_sort Tomioka, Kimiko
collection PubMed
description BACKGROUND: Although many governments are promoting workforce participation (WP) by older people, evidence of WP’s effects on active aging is inadequate. We examined whether there is a gender-specific beneficial effect of lifetime WP from adulthood though old age against self-reported cognitive decline (CD) among community-dwelling older adults. METHODS: We used data from a community-based prospective study of 2,422 men and 2,852 women aged ≥65 with neither poor cognition nor disability in basic activities of daily living at baseline. Self-reported CD was measured using the Cognitive Performance Scale. Lifetime WP evaluated the presence or absence of WP at baseline, the longest-held occupation, and lifetime working years (total working years throughout lifetime). Generalized estimating equations of the multivariable Poisson regression model were applied to evaluate a cumulative incidence ratio (CIR) for self-reported CD and a 95% confidence interval (CI), controlled for age, education, self-perceived economic status, chronic medical conditions, smoking history, physical activity, depression, and instrumental activities of daily living. To examine any gender-specific association, stratified analyses by gender were performed. RESULTS: The 33-month cumulative incidence of self-reported CD was 15.7% in men and 14.4% in women. After covariate adjustments and mutual adjustment for three items of lifetime WP, men who had their longest held job in a white-collar occupation reported significantly decreased self-reported CD compared to men engaged in blue-collar jobs (CIR 0.72; 95% CI, 0.57–0.91), and women had a significant dose–response relationship between longer lifetime working years and less decline in subjective cognitive functioning (P for trend <0.029). Among both genders, WP at baseline was not associated with self-reported CD. CONCLUSIONS: Our results suggest that lifetime WP, especially lifetime principal occupation in men and lifetime working years in women, may play a more prominent role in preventing self-reported CD than later-life WP.
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spelling pubmed-72796042020-06-17 Longitudinal association between lifetime workforce participation and risk of self-reported cognitive decline in community-dwelling older adults Tomioka, Kimiko Kurumatani, Norio Saeki, Keigo PLoS One Research Article BACKGROUND: Although many governments are promoting workforce participation (WP) by older people, evidence of WP’s effects on active aging is inadequate. We examined whether there is a gender-specific beneficial effect of lifetime WP from adulthood though old age against self-reported cognitive decline (CD) among community-dwelling older adults. METHODS: We used data from a community-based prospective study of 2,422 men and 2,852 women aged ≥65 with neither poor cognition nor disability in basic activities of daily living at baseline. Self-reported CD was measured using the Cognitive Performance Scale. Lifetime WP evaluated the presence or absence of WP at baseline, the longest-held occupation, and lifetime working years (total working years throughout lifetime). Generalized estimating equations of the multivariable Poisson regression model were applied to evaluate a cumulative incidence ratio (CIR) for self-reported CD and a 95% confidence interval (CI), controlled for age, education, self-perceived economic status, chronic medical conditions, smoking history, physical activity, depression, and instrumental activities of daily living. To examine any gender-specific association, stratified analyses by gender were performed. RESULTS: The 33-month cumulative incidence of self-reported CD was 15.7% in men and 14.4% in women. After covariate adjustments and mutual adjustment for three items of lifetime WP, men who had their longest held job in a white-collar occupation reported significantly decreased self-reported CD compared to men engaged in blue-collar jobs (CIR 0.72; 95% CI, 0.57–0.91), and women had a significant dose–response relationship between longer lifetime working years and less decline in subjective cognitive functioning (P for trend <0.029). Among both genders, WP at baseline was not associated with self-reported CD. CONCLUSIONS: Our results suggest that lifetime WP, especially lifetime principal occupation in men and lifetime working years in women, may play a more prominent role in preventing self-reported CD than later-life WP. Public Library of Science 2020-06-08 /pmc/articles/PMC7279604/ /pubmed/32511273 http://dx.doi.org/10.1371/journal.pone.0234392 Text en © 2020 Tomioka et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Tomioka, Kimiko
Kurumatani, Norio
Saeki, Keigo
Longitudinal association between lifetime workforce participation and risk of self-reported cognitive decline in community-dwelling older adults
title Longitudinal association between lifetime workforce participation and risk of self-reported cognitive decline in community-dwelling older adults
title_full Longitudinal association between lifetime workforce participation and risk of self-reported cognitive decline in community-dwelling older adults
title_fullStr Longitudinal association between lifetime workforce participation and risk of self-reported cognitive decline in community-dwelling older adults
title_full_unstemmed Longitudinal association between lifetime workforce participation and risk of self-reported cognitive decline in community-dwelling older adults
title_short Longitudinal association between lifetime workforce participation and risk of self-reported cognitive decline in community-dwelling older adults
title_sort longitudinal association between lifetime workforce participation and risk of self-reported cognitive decline in community-dwelling older adults
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7279604/
https://www.ncbi.nlm.nih.gov/pubmed/32511273
http://dx.doi.org/10.1371/journal.pone.0234392
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