Sleep Quality, Cognitive Aging, and Mortality in Older Adults
Author Information
Author(s): Tate Rio, Beydoun May
Primary Institution: University of South Florida, National Institute on Aging
Hypothesis
Sleep and dementia may interact with each other to determine mortality risk, perhaps differentially by sex and by race.
Conclusion
Poor cognition was positively associated with mortality risk, especially among males and White older adults with better sleep quality.
Supporting Evidence
- Poor sleep quality was associated with higher mortality risk in older adults.
- Dementia status had a stronger positive association with mortality risk in individuals with better sleep.
- In the HANDLS study, poorer sleep was linked to lower survival probability over time.
Takeaway
If older people don't sleep well, they might have a higher chance of not living as long, especially if they also have memory problems.
Methodology
The study examined associations of dementia, sleep, and mortality using data from the Health and Retirement Study and the Healthy Aging in Neighborhoods of Diversity across the Life Span.
Participant Demographics
Older and middle-aged US adults, with a focus on sex and race differences.
Digital Object Identifier (DOI)
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