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Table 4 Factors associated with change in BMI for the short-term work group*

From: Occupational Factors Associated with Changes in the Body Mass Index of Korean Male Manual Workers

  Variables B SE β t p-value
Age   −0.02 0.02 −0.12 −1.13 0.263
Education High school or lower (Ref)      
  College or higher −0.06 0.22 −0.03 −0.28 0.783
Marital status Single or divorced (Ref)      
  Married 0.06 0.22 0.03 0.29 0.771
Smoking Never or formerly smoked (Ref)      
  Started or resumed smoking 0.50 0.48 0.10 1.05 0.298
  Quit smoking 0.27 0.46 0.06 0.59 0.558
  Continued smoking 0.25 0.23 0.12 1.09 0.279
Alcohol drinking§ Non-drinking (Ref)      
  No change 0.29 0.40 0.10 0.72 0.470
  Decrease in drinking 0.21 0.34 0.10 0.62 0.533
  Increase in drinking 0.16 0.37 0.07 0.43 0.670
Regular exercise Not performed (Ref)      
  Stopped performing 0.11 0.36 0.03 0.32 0.751
  Began performing 0.16 0.31 0.05 0.51 0.608
  Continued performing 0.35 0.55 0.06 0.64 0.525
Coffee drinking   0.01 0.07 0.02 0.16 0.873
Amount of sleep < 7 hours (Ref)      
  ≥ 7 hours −0.04 0.20 −0.02 −0.19 0.851
Working hours ≤ 9 hours (Ref)      
  > 9 hours, < 12 hours 0.34 0.25 0.16 1.35 0.181
  ≥ 12 hours 0.61 0.32 0.24 1.88 0.062
Shift work No shift work (Ref)      
  Two shifts 0.50 0.42 0.13 1.18 0.239
  Three shifts 0.73 0.34 0.26 2.13 0.035
Sitting time 0-24% (Ref)      
  25-49% 0.07 0.33 0.03 0.20 0.842
  50-74% −0.06 0.37 −0.02 −0.15 0.883
  75-100% 0.64 0.39 0.23 1.65 0.101
Job stress Job demand −0.20 0.23 −0.09 −0.86 0.393
  Insufficient job control −0.55 0.24 −0.24 −2.29 0.024
  Inadequate social support 0.01 0.24 0.01 0.06 0.956
  Job insecurity 0.33 0.25 0.13 1.33 0.186
  Organizational injustice 0.10 0.26 0.04 0.40 0.690
  Lack of reward −0.52 0.26 −0.22 −2.01 0.047
  Poor occupational climate 0.07 0.23 0.03 0.30 0.768
  1. Dependent variable: The change in body mass indices between 2012 and 2013.
  2. R2 = 0.229.
  3. * Experience of 5 years or less working at the present post.
  4. † Standard error.
  5. ‡ The change in smoking status between 2012 and 2013.
  6. § The change in the weekly amount of alcohol drinking between 2012 and 2013.
  7. The change in regular exercise performance between 2012 and 2013. Those performing high- or moderate-intensity exercise were regarded as getting regular exercise.