Sedentary work: Associations between five-year changes in occupational sitting time and body mass index

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OBJECTIVE: The aim of this study is to investigate the association between five-year changes in occupational sitting and body mass index (BMI) in working adults.

METHODS: We analyzed data from The Danish Work Environment Cohort Study (2005 and 2010, n=3.482). Data on occupational sitting, weight, height and several potential confounders were self-reported. The association between change in occupational sitting (hours) (categorized as large decrease <-7.5, moderate decrease -7.5 to <-2.5, no change -2.5 to 2.5, moderate increase >2.5 to 7.5 and large increase >7.5) and change in BMI was explored by multiple linear regression analyses.

RESULTS: 43.0% men and 36.1% women had high occupational sitting time (≥25h per week) at baseline. 31.8% men and 27.2% women decreased while 30.0% men and 33.0% women increased occupational sitting. The proportion of obese (BMI≥30) increased almost 3% for both genders. BMI changed 0.13 (CI: 0.06; 0.20, p=0.0003), per category of change in occupational sitting in women, but no association was found in men.

CONCLUSION: In women, there is a positive association between five-year changes in occupational sitting and BMI.

Original languageEnglish
JournalPreventive Medicine
Pages (from-to)1-5
Number of pages5
Publication statusPublished - Apr 2015

    Research areas

  • Adolescent, Adult, Body Mass Index, Cohort Studies, Denmark, Female, Humans, Leisure Activities, Male, Middle Aged, Motor Activity, Obesity, Occupations, Sedentary Lifestyle, Sex Factors, Surveys and Questionnaires, Young Adult

ID: 161058717