Trajectories of Insomnia Symptoms Among Aging Employees and Their Associations With Memory, Learning Ability, and Concentration After Retirement - A Prospective Cohort Study (2000-2017)

Antti Etholén, Olli Pietiläinen, Anne Kouvonen, Mirja Hänninen, Ossi Rahkonen, Tea Lallukka

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Abstract

We applied a person-oriented approach and used latent class linear mixed models to identify sleep trajectories that explain memory, concentration, and learning ability problems after retirement. Data consist of prospective surveys from four phases of the Helsinki Health Study between 2000-2017 (n = 3748, aged 55-77 years, 80% women). Multinomial regression was used to examine the associations between sleep trajectories and cognitive function, adjusting for sociodemographic, health-related behavior, and health factor covariates. Among statutory retirees, three latent group trajectories of insomnia-related symptoms were identified: stable low, decreasing, and increasing. Among those who had retired for disability reasons, we identified one additional latent group trajectory: stable high. Insomnia symptoms were associated with worse cognitive function. Early detection of insomnia symptoms would be a potential intervention point to improve both sleep quality and prevent cognitive decline in later life. However, intervention studies are needed.
Original languageEnglish
Number of pages13
JournalJOURNAL OF AGING AND HEALTH
Early online date28 Apr 2022
DOIs
Publication statusEarly online date - 28 Apr 2022

Keywords

  • insomnia symptoms
  • cognitive function
  • retirement

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