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Sleep Med. 2011 Apr;12(4):346-50. doi: 10.1016/j.sleep.2010.09.013.

Relationships between self-rated health, quality of life and sleep duration in middle aged and elderly Australians.

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School of Psychology, University of Wollongong, NSW 2522, Australia.



To determine whether sleep duration is associated with self-rated health and quality of life in adults residing in New South Wales, Australia.


Cross-sectional data from the 45 and Up Study were used. Sleep duration, self-rated health, quality of life and other health-related variables were assessed using a self-report questionnaire. Multinomial logistic regression models were used to examine whether sleep duration predicted self-rated health and quality of life.


The sample included 63,408 adults aged 45-95 years. After controlling for a range of covariates, <6 h sleep (OR=1.49, 95% CI 1.31-1.70), 6 h sleep (OR=1.28, 95% CI 1.17-1.38) and ≥9 h sleep (OR=1.56, 95% CI 1.46-1.67) were associated with poorer self-rated health. Similarly, <6 h sleep (OR=1.80, 95% CI 1.57-2.07), 6 h sleep (OR=1.36, 95% CI 1.24-1.49) and ≥9 h sleep (OR=1.41, 95% CI 1.30-1.53) were associated with poorer quality of life.


Short and long sleep were significantly associated with poor self-rated health and lower quality of life in this large sample of middle aged and older Australian adults. While cross-sectional, these results add weight to recent data emphasising the importance of adequate sleep in physical and mental health.

[Indexed for MEDLINE]

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