Office workers' objectively assessed total and prolonged sitting time: individual-level correlates and worksite variations
Hadgraft, Nyssa T., Healy, Genevieve N., Owen, Neville, Winkler, Elisabeth A. H., Lynch, Brigid M., Sethi, Parneet, Eakin, Elizabeth G., Moodie, Marj, LaMontagne, Anthony D., Wiesner, Glen, Willenberg, Lisa and Dunstan, David W. 2016, Office workers' objectively assessed total and prolonged sitting time: individual-level correlates and worksite variations, Preventative medicine reports, vol. 4, pp. 184-191, doi: 10.1016/j.pmedr.2016.06.011.
Sedentary behavior is highly prevalent in office-based workplaces; however, few studies have assessed the attributes associated with this health risk factor in the workplace setting. This study aimed to identify the correlates of office workers' objectively-assessed total and prolonged (≥ 30 min bouts) workplace sitting time. Participants were 231 Australian office workers recruited from 14 sites of a single government employer in 2012-13. Potential socio-demographic, work-related, health-related and cognitive-social correlates were measured through a self-administered survey and anthropometric measurements. Associations with total and prolonged workplace sitting time (measured with the activPAL3) were tested using linear mixed models. Worksites varied significantly in total workplace sitting time (overall mean [SD]: 79% [10%] of work hours) and prolonged workplace sitting time (42% [19%]), after adjusting for socio-demographic and work-related characteristics. Organisational tenure of 3-5 years (compared to tenure > 5 years) was associated with more time spent in total and prolonged workplace sitting time, while having a BMI categorised as obese (compared to a healthy BMI) was associated with less time spent in total and prolonged workplace sitting time. Significant variations in sitting time were observed across different worksites of the same employer and the variation remained after adjusting for individual-level factors. Only BMI and organisational tenure were identified as correlates of total and prolonged workplace sitting time. Additional studies are needed to confirm the present findings across diverse organisations and occupations.
Field of Research
111705 Environmental and Occupational Health and Safety
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