Racial/ethnic differences in sleep quality among older adults: Kaiser Healthy Aging and Diverse Life Experiences (KHANDLE) study

Kristen M. George, Rachel L. Peterson, Paola Gilsanz, Dan M. Mungas, M. Maria Glymour, Elizabeth Rose Mayeda, Rachel A. Whitmer

Research output: Contribution to journalArticlepeer-review

Abstract

Background: We assessed cross-sectional differences in sleep quality and risk factors among Asian, Black, Latino, and White participants in the Kaiser Healthy Aging and Diverse Life Experiences (KHANDLE) Study. Methods: KHANDLE enrolled communitydwelling adults aged .65 years living in northern California. Participants completed a modified Pittsburgh Sleep Quality Index to measure six sleep components and a global sleep score (scored 0-24). Covariates included age, sex, central adiposity, education, income, alcohol consumption, ever smoking, physical activity, and depression. Ordinal logistic regression was used to model sleep component scores across race/ ethnic groups. Linear regression was used to assess racial/ethnic differences in global sleep score and the association between risk factors and global sleep score. Results: 1,664 participants with a mean age of 76 (SD=7) and mean global sleep score of 6 (SD=4) were analyzed. Using Latinos as reference (highest average sleep score), Blacks had an average .96 (.37, 1.54) unit higher global sleep score (worse sleep) while Asians [β: .04 (-.56, .63)] and Whites [β: .28 (-.29, .84)] did not significantly differ. Compared with Latinos, Blacks and Asians had greater odds of a worse score on the sleep duration component; Blacks and Whites had greater odds of a worse score on the sleep disturbances component; and, Whites had greater odds of a worse score on the medication component. Risk factors for poor sleep did not differ by race/ethnicity except alcohol consumption (interaction P=.04), which was associated with poor sleep in Blacks only. Conclusion: In this cohort, racial/ethnic differences in sleep quality were common. Ethn Dis.

Original languageEnglish (US)
Pages (from-to)469-478
Number of pages10
JournalEthnicity and Disease
Volume30
Issue number3
DOIs
StatePublished - Sep 2020

Keywords

  • Disparities
  • Older Adults
  • Risk Factors
  • Sleep

ASJC Scopus subject areas

  • Epidemiology

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