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Neighborhoods, sleep quality, and cognitive decline: Does where you live and how well you sleep matter?
Author(s) -
Hunter Jaimie C.,
Handing Elizabeth P.,
Casanova Ramon,
Kuchibhatla Maragatha,
Lutz Michael W.,
Saldana Santiago,
Plassman Brenda L.,
Hayden Kathleen M.
Publication year - 2018
Publication title -
alzheimer's and dementia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.713
H-Index - 118
eISSN - 1552-5279
pISSN - 1552-5260
DOI - 10.1016/j.jalz.2017.10.007
Subject(s) - cognitive decline , cognition , pittsburgh sleep quality index , effects of sleep deprivation on cognitive performance , sleep (system call) , quartile , gerontology , psychology , socioeconomic status , medicine , sleep quality , psychiatry , environmental health , population , dementia , confidence interval , disease , computer science , operating system
We evaluated the association between neighborhood socioeconomic status (NSES) and sleep quality on cognitive decline in the Health and Retirement Study. Methods Health and Retirement Study participants (n = 8090), aged 65+ with DNA and multiple biennial cognitive observations (abbreviated Telephone Interview for Cognitive Status), were included. Participants were grouped into quartiles of NSES and sleep quality scores. We adjusted for apolipoprotein E ε4, demographic, and cardiovascular risk factors. Random effects modeling evaluated cognitive change over time. Results NSES and sleep were significantly associated with cognitive decline, and there was a significant interaction between them ( P = .02). Significant differences between high/low NSES and high/low sleep quality ( P < .0001) were found. Discussion Sleep and NSES were associated with cognitive decline; the association between sleep and cognition appeared stronger among those with low NSES. The association between low NSES, poor sleep quality, and cognitive decline was roughly equivalent to the association between apolipoprotein E ε4 and cognitive decline.