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Table 4 Logistic regression analyses of working conditions

From: Vitamin D status and associated occupational factors in Korean wage workers: data from the 5th Korea national health and nutrition examination survey (KNHANES 2010–2012)

   Male Female
   Crude OR(95% CI) Adjusted OR(95% CI)* Crude OR(95% CI) Adjusted OR(95% CI)*
Shift work Yes 1.449(1.119-1.876) 1.456(1.089-1.946) 1.258(0.893-1.773) 1.357(0.920-2.004)
No Reference Reference Reference Reference
Stability of work Permanent worker 1.511(1.158-1.971) 1.420(1.019-1.979) 1.489(1.105-2.006) 0.977(0.685-1.392)
Temporary worker Reference Reference Reference Reference
Employment type Part-time worker 1.118(0.740-1.688) 1.086(0.641-1.841) 0.694(0.521-0.924) 0.844(0.578-1.234)
Full-time worker Reference Reference Reference Reference
Occupation Office worker 1.608(1.302-1.985) 1.478(1.098-1.990) 2.225(1.657-2.986) 1.141(0.752-1.730)
Service worker 1.611(1.105-2.347) 1.202(0.788-1.834) 1.209(0.882-1.659) 1.052(0.740-1.497)
Manufacturing worker Reference Reference Reference Reference
Working hours/week <40 0.967(0.703-1.331) 1.077(0.720-1.612) 0.905(0.579-1.415) 0.965(0.564-1.652)
40-52 1.044(0.812-1.341) 0.927(0.701-1.225) 1.367(0.874-2.137) 1.025(0.601-1.746)
52-60 0.929(0.638-1.352) 0.916(0.616-1.364) 1.041(0.571-1.897) 0.684(0.348-1.344)
≥60 Reference Reference Reference Reference
  1. *OR; odds ratio, CI; confidence intervals.
  2. Adjusted for age, BMI, socioeconomic status (income, marriage, education level).
  3. Health behavior (smoking status, alcohol use, dietary supplement use, physical activity).