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Developing a Job-Exposure Matrix for Sedentary Behavior: A Study Based on the Inpatient Clinico-Occupational Database
Kota Fukai1, Kei Sano, Ryo Terauchi
1From the Department of Preventive Medicine, Tokai University School of Medicine, Isehara, Japan (K.F., Y.F., S.N., M.T.); Department of Ophthalmology, The Jikei University School of Medicine, Tokyo, Japan (K.S., R.T., T.N.); Department of Public Health, Shizuoka Graduate University of Public Health, Shizuoka, Japan (N.K.); Center for Health Informatics Policy, National Institute of Public Health, Wako, Japan (K.H.); Department of Hygiene, Kitasato University School of Medicine, Sagamihara, Japan (K.H.); and Chugoku Rosai Hospital Research Center for the Promotion of Health and Employment Support, Japan Organization of Occupational Health and Safety, Hiroshima, Japan (A.T.).
Objective:
The aim of the study is to develop a job-exposure matrix for sedentary behavior and assess its relationship with noncommunicable diseases.
Methods:
We constructed a job-exposure matrix using occupational and industry classifications combined with data on daily average sitting durations from 41,718 individuals. This matrix was then applied to a cohort of 706,939 participants in a case-control study to explore the link between sedentary behavior and noncommunicable disease risks.
Results:
The matrix effectively identified sedentary behavior across different occupational groups. Using the matrix to assess sedentary behavior, associations were found between increased sedentary activity and heightened risks of diabetes, acute myocardial infarction, and endometrial cancer, while a reduced risk was observed for stroke.
Conclusions:
The job-exposure matrix provides valuable insights into the health impacts of sedentary behavior in the workplace, underscoring significant disease risks associated with prolonged inactivity.
