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November 14, 2025SLEEP

Association of Clinical, Psychological and Lifestyle Factors with Disparities in Sleep: The CARDIA Sleep Study

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Authors

KKKristen L. KnutsonKRKathryn J. ReidXCXuan Cai

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Overview

Cross-sectional analysis demonstrates how clinical and psychosocial factors impact sleep disparities in Black and White adults.

Key Points

  • This research explores how clinical, psychosocial, and lifestyle factors relate to racial disparities in sleep health.
  • Used wrist actigraphy and home sleep apnea testing for 7 days.
  • Collected data on clinical, psychosocial, and lifestyle factors in Black and White adults over 35 years.
  • Analyzed sleep characteristics such as sleep duration, insomnia severity, and apnea-hypopnea index.
  • Performed cross-sectional and longitudinal analyses to determine percentage reduction in racial differences.
  • 899 participants aged 53-69 years, with 41% being Black and 63.4% women.
  • Clinical factors most significantly influenced racial differences in sleep, with reductions up to 118.9% for sleep apnea.
  • Psychosocial adjustments reduced racial disparities in sleep percentage by 17.8% and sleep regularity by 23.4%.

Cite This Study

Knutson et al. (2025) studied this question.

synapsesocial.com/papers/692519a7c0ce034ddc353e91https://doi.org/10.1093/sleep/zsaf367
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