Bibliographic Details
| Title: |
Longitudinal association between lifetime workforce participation and risk of self-reported cognitive decline in community-dwelling older adults. |
| Authors: |
Tomioka, Kimiko1 (AUTHOR) tkimiko@naramed-u.ac.jp, Kurumatani, Norio1 (AUTHOR), Saeki, Keigo1 (AUTHOR) |
| Source: |
PLoS ONE. 6/8/2020, Vol. 15 Issue 6, p1-16. 16p. |
| Subject Terms: |
*OLDER people, *ACTIVITIES of daily living, *ACTIVE aging, *GENERALIZED estimating equations, *INTIMATE partner violence, *POISSON regression |
| Abstract: |
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. [ABSTRACT FROM AUTHOR] |
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