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Greater bed- and wake-time variability is associated with less healthy lifestyle behaviors : a cross-sectional study

Aim This study examines associations between the variability in bed/rise times, usual bed/rise time and dietary quality, physical activity, alcohol consumption, sitting time, sleep insufficiency and a composite index of behaviors. Subject and methods A random sample of Australian adults drawn from an online Panel cohort in 2013 completed a crosssectional online survey. A total of 1,317 participants, median age 57 (IQR=20) completed the survey. Bed- and wake times,variability in bed- and wake-times, dietary quality, physical activity, alcohol consumption, sitting time, sleep insufficiency and socio-demographics were assessed using a questionnaire. Associations were examined with generalized linear models. Results Having bed - times that varied by >30 min were associated with lower dietary quality, higher alcohol consumption, higher sitting time, more frequent insufficient sleep and poorer overall pattern of lifestyle behaviors. Greater variability in wake times, usual bed times and usual wake times were inconsistently associated with lifestyle behaviours. Conclusions Greater bed-time variability is associated with a less healthy pattern of lifestyle behaviors. Greater consistency in sleep timing may contribute to, or be reflective of, a healthier lifestyle.

History

Volume

24

Issue

1

Start Page

31

End Page

40

Number of Pages

10

eISSN

1613-2238

ISSN

2198-1833

Location

Berlin

Publisher

Springer

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

University of Newcastle; University of Pittsburgh School of Medicine; University of Adelaide

Era Eligible

Yes

Journal

Journal of public health.