Sleep characteristics and self-rated health in older persons
Key summary points
To examine the association between older persons’ sleep characteristics and subjective health.
Older persons with good self-rated health are more likely to report a good sleep quality and less likely to take naps or sleep medication, even when accounting for comorbidity, depressive symptoms and cognitive difficulties.
While sleep efficiency is positively associated with subjective health, napping and use of sleep medication are negatively associated to rating one’s health as good. These associations need to be further investigated in longitudinal analyses to better understand causality.
It remains unclear, how much older persons’ sleep problems are due to age-related changes in sleep architecture and pattern, or whether they are a consequence of health problems. This work aimed to examine the association between sleep characteristics and self-rated health, taking into account potential confounders.
Data about sleep, including sleep efficiency (ratio of sleep duration to the amount of time spent in bed, considered as good if > 85%), as well as health-rated characteristics were self-reported by community-dwelling persons enrolled in the Lausanne cohort 65+ study (n = 2712, age 66–75 years). Participants’ subjective health was categorized as good versus poor. The cross-sectional association between good self-rated health and sleep characteristics was examined in bivariate and multivariate analysis.
The majority of participants (68.4%) rated their health as good. Compared to the participants with poor-rated health, they more often reported a good sleep efficiency (59.5% vs 45.0%, p < 0.001) and less often reported napping (41.6% vs 54.0%, p < 0.001) as well as using sleep medication (12.7% vs 31.8%, p < 0.001). After adjustment for comorbidity, depressive symptoms and cognitive difficulties, a positive association persisted between good sleep efficiency and good self-rated health (adjOR: 1.35, 95% CI 1.10–1.66). Regular napping remained negatively associated to feel healthy (adjOR: 0.65, 95% CI 0.53–0.79).
Sleep efficiency is positively associated with subjective health, whereas napping and use of sleep medication are negatively associated to rating own health as good. These associations need to be further investigated in longitudinal analyses to better understand causality.
KeywordsSleep Older persons Subjective health
The authors want to thank all participants to the Lausanne Cohort 65 + study.
None of the authors received specific funding for this analysis.
Compliance with ethical standards
Conflict of interest
The authors declare no conflict of interest.
The Lc65+ study initial protocol and follow-up amendments received approval from the Cantonal Human Research Ethical Committee [Protocol (19/04); 2009 amendment approved January 9, 2009]. All procedures performed in studies involving human participants were in accordance with the ethical standards of the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Participants were informed about the nature of the study and confidentiality of data management, and gave written consent to participate.
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