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Does Shiftwork Impact Cognitive Performance? Findings from the Canadian Longitudinal Study on Aging (CLSA)

Author

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  • Rea Alonzo

    (Department of Epidemiology & Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada)

  • Kelly K. Anderson

    (Department of Epidemiology & Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada
    Lawson Health Research Institute, London, ON N6C 2R5, Canada
    Department of Psychiatry, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada)

  • Rebecca Rodrigues

    (Department of Epidemiology & Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada)

  • Neil Klar

    (Department of Epidemiology & Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada)

  • Paolo Chiodini

    (Medical Statistics Unit, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy)

  • Manuel Montero-Odasso

    (Department of Epidemiology & Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada
    Gait and Brain Laboratory, Parkwood Institute, Lawson Health Research Institute, London, ON N6C 0A7, Canada
    Department of Medicine, Division of Geriatric Medicine, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada)

  • Saverio Stranges

    (Department of Epidemiology & Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada
    Departments of Family Medicine and Medicine, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada
    Department of Precision Health, Luxembourg Institute of Health, Strassen, L-1445 Luxembourg, Luxembourg)

Abstract

Few large nationwide studies have investigated the relationship between shiftwork and cognitive performance, and little is known about whether and how psychological distress may impact this relationship. This study aimed to examine: (1) the cross-sectional relationship between shiftwork (yes/no) and some aspects of cognitive performance (declarative memory and executive functioning) and (2) the potential moderating effect of psychological distress among 20,610 community-dwelling adults from the comprehensive cohort of the Canadian Longitudinal Study on Aging (CLSA). Differences by sex and retirement status were also explored. Shiftwork was significantly associated with poorer performance for executive functioning (interference condition: ß = 0.47, 95% CI: 0.31 to 0.63; MAT: ß = −0.85, 95% CI: −1.21 to −0.50) but not for declarative memory. Completely and not/partly retired males showed poorer cognitive performance on executive functioning. However, no evidence of a moderating effect by psychological distress was found. Our findings confirm the association between shiftwork and cognitive performance and highlight important health correlates of shiftwork.

Suggested Citation

  • Rea Alonzo & Kelly K. Anderson & Rebecca Rodrigues & Neil Klar & Paolo Chiodini & Manuel Montero-Odasso & Saverio Stranges, 2022. "Does Shiftwork Impact Cognitive Performance? Findings from the Canadian Longitudinal Study on Aging (CLSA)," IJERPH, MDPI, vol. 19(16), pages 1-11, August.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:16:p:10124-:d:889336
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    References listed on IDEAS

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    1. Verena H Menec & Nancy E Newall & Corey S Mackenzie & Shahin Shooshtari & Scott Nowicki, 2019. "Examining individual and geographic factors associated with social isolation and loneliness using Canadian Longitudinal Study on Aging (CLSA) data," PLOS ONE, Public Library of Science, vol. 14(2), pages 1-18, February.
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