title: Understanding occupational sitting: prevalence, correlates and moderating effects in Australian employees.
abstract: OBJECTIVE
  To (1) compare occupational sitting between different socio-demographic, health-related, work-related and psychosocial categories, (2) identity socio-demographic, health-related, work-related and psychosocial correlates of occupational sitting, and (3) examine the moderating effect of work-related factors in the relation between correlates and occupational sitting.
  
  
  METHODS
  Randomly-selected Australian adults completed a web-based survey assessing socio-demographic (country of birth, gender, age, education, income), health-related (general health, weight, physical activity), work-related (employment status, occupational task, occupational classification) and sedentary-specific psychosocial (social norm, social support, self-efficacy, control, advantages, disadvantage, intention) factors, and occupational sitting-time. t-tests, ANOVAs and multiple linear regression analyses were conducted (in 2013) on a sample of employees (n=993).
  
  
  RESULTS
  Respondents sat on average for 3.75 (SD=2.45) h/day during work. Investigated correlates explained 41% of the variance in occupational sitting. More occupational sitting was associated with being male, being younger, higher education and income, part-time and full-time employment, sedentary job tasks, white-collar/professional occupations, higher BMI, and perceiving more advantages of sitting less at work. Employment status and occupational classification moderated the association between control to sit less and occupational sitting. A lack of control to sit less was associated with higher occupational sitting in part-time and full-time workers, but not in casual workers; and in white-collar and professional workers, but not in blue-collar workers.
  
  
  CONCLUSIONS
  Most important contributors to occupational sitting were work-related and socio-demographic correlates. More research is needed to confirm present results.
authors.affiliation: Ghent University, Department of Movement and Sports Sciences, Ghent, Belgium; Research Foundation Flanders, Brussels, Belgium. Electronic address: Katrien.DeCocker@ugent.be.
authors.forename: Katrien
authors.initials: K
authors.lastname: De Cocker
authors.affiliation: The University of Newcastle, School of Medicine and Public Health, Callaghan, Australia.
authors.forename: Mitch J
authors.initials: MJ
authors.lastname: Duncan
authors.affiliation: Central Queensland University, Centre for Physical Activity Studies, Institute for Health and Social Science Research, Rockhampton, QLD, Australia.
authors.forename: Camille
authors.initials: C
authors.lastname: Short
authors.affiliation: Victoria University, Institute of Sport, Exercise and Active Living, Melbourne, VIC, Australia; The University of Queensland, School of Human Movement Studies, St Lucia Campus, Brisbane, QLD, Australia; Baker IDI Heart and Diabetes Institute, Melbourne, VIC, Australia.
authors.forename: Jannique G Z
authors.initials: JG
authors.lastname: van Uffelen
authors.affiliation: Central Queensland University, Centre for Physical Activity Studies, Institute for Health and Social Science Research, Rockhampton, QLD, Australia.
authors.forename: Corneel
authors.initials: C
authors.lastname: Vandelanotte
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001315:Australia; D003430:Cross-Sectional Studies; D004651:Employment; D005260:Female; D006801:Humans; D020407:Internet; D007899:Leisure Activities; D008297:Male; D008875:Middle Aged; D009790:Occupations; D011187:Posture / Q000502:physiology*; D057185:Sedentary Behavior; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: Cross-sectional study; Online survey; Sedentary behaviour; Workplace