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Updated: Jun 10, 2026

Multi-Modal Home Sleep Monitoring in Older Adults
Published on: January 26, 2019
Is sleep duration associated with obesity in older Australian adults?
Christopher A Magee1, Peter Caputi, Don C Iverson
1University of Wollongong, New South Wales, Australia. cmagee@uow.edu.au.
Objectives:
To investigate the relationship between sleep duration and obesity in older Australian adults.
Method:
Self-reported health data were collected through the 45 and Up Study. Multinomial logistic regression models were used to test the relationship between sleep duration and body mass index, controlling for a range of demographic and health-related variables.
Results:
The sample included 45,325 Australian adults aged 55 to 95 years. The regression models demonstrated that short and long sleep were associated with obesity in 55- to 64-year-olds but not in those aged 65 years and above.
Discussion:
The present results suggest that the relationships between sleep duration and obesity previously reported in young and middle-aged adults are not evident in older adults. The absence of these relationships could reflect a combination of age-related factors that impact on sleep and body composition.
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