Skip to main content

Short sleep mediates the association between long work hours and increased body mass index

Journal Article


Download full-text (Open Access)

Abstract


  • This study examined whether short sleep

    duration, physical activity and time spent sitting each day

    mediated the association between long work hours and

    body mass index (BMI). Participants included 16,951

    middle aged Australian adults who were employed in full

    time work (i.e. C35 h a week). Data on BMI, sleep duration,

    work hours and other health and demographic variables

    were obtained through a self-report questionnaire. A

    multiple mediation model was tested whereby sleep duration,

    physical activity and amount of time spent sitting

    were entered as potential mediators between work hours

    and BMI. The results demonstrated that short sleep partially

    mediated the association between long work hours

    and increased BMI in males. In females, long work hours

    were indirectly related to higher BMI through short sleep.

    The results provide some support for the hypothesis that

    long work hours could contribute to obesity via a reduction

    in sleep duration; this warrants further investigation in

    prospective studies.

UOW Authors


  •   Magee, Christopher (external author)
  •   Caputi, Peter
  •   Iverson, Donald C.

Publication Date


  • 2011

Citation


  • Magee, C. A., Caputi, P. & Iverson, D. C. (2011). Short sleep mediates the association between long work hours and increased body mass index. Journal of Behavioral Medicine, 34 (2), 83-91.

Scopus Eid


  • 2-s2.0-79952485199

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4598&context=hbspapers

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3546

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 83

End Page


  • 91

Volume


  • 34

Issue


  • 2

Abstract


  • This study examined whether short sleep

    duration, physical activity and time spent sitting each day

    mediated the association between long work hours and

    body mass index (BMI). Participants included 16,951

    middle aged Australian adults who were employed in full

    time work (i.e. C35 h a week). Data on BMI, sleep duration,

    work hours and other health and demographic variables

    were obtained through a self-report questionnaire. A

    multiple mediation model was tested whereby sleep duration,

    physical activity and amount of time spent sitting

    were entered as potential mediators between work hours

    and BMI. The results demonstrated that short sleep partially

    mediated the association between long work hours

    and increased BMI in males. In females, long work hours

    were indirectly related to higher BMI through short sleep.

    The results provide some support for the hypothesis that

    long work hours could contribute to obesity via a reduction

    in sleep duration; this warrants further investigation in

    prospective studies.

UOW Authors


  •   Magee, Christopher (external author)
  •   Caputi, Peter
  •   Iverson, Donald C.

Publication Date


  • 2011

Citation


  • Magee, C. A., Caputi, P. & Iverson, D. C. (2011). Short sleep mediates the association between long work hours and increased body mass index. Journal of Behavioral Medicine, 34 (2), 83-91.

Scopus Eid


  • 2-s2.0-79952485199

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4598&context=hbspapers

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3546

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 83

End Page


  • 91

Volume


  • 34

Issue


  • 2