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Table 3 Effects on sleep disturbance according to general characteristics, occupational characteristics, workplace violence, and perpetrators of violence

From: Relationship of workplace violence and perpetrators on sleep disturbance-data from the 4th Korean working conditions survey

Variable ORa 95 % CI ORb 95 % CI
Sex (ref. Male) 1.388 1.168–1.648 1.408 1.185–1.673
Age 1.001 0.994–1.008 1.001 0.995–1.008
Number of employees (ref. < 5)
 5–49 1.484 1.153–1.910 1.469 1.141–1.890
 50–299 1.984 1.494–2.637 1.956 1.472–2.600
 ≥300 2.091 1.463–2.987 2.039 1.426–2.916
Working time (ref. ≤ 40)
 41–52 1.332 1.103–1.607 1.328 1.100–1.603
 53–60 0.955 0.718–1.271 0.954 0.716–1.270
 ≥61 2.169 1.595–2.951 2.178 1.601–2.963
Shift work (ref. No) 1.425 1.128–1.799 1.488 1.177–1.881
Emotional labor (ref. No) 1.495 1.256–1.780 1.509 1.268–1.797
Ergonomic risk factors (ref. No) 1.287 1.005–1.649 1.310 1.022–1.679
Job demand (ref. Low) 1.298 1.095–1.539 1.261 1.062–1.497
Insufficient job control (ref. Low) 0.916 0.771–1.087 0.908 0.765–1.078
Inadequate social support (ref. Low) 1.838 1.542–2.191 1.812 1.520–2.161
Job insecurity (ref. Low) 1.723 1.454–2.041 1.718 1.450–2.035
Lack of reward (ref. Low) 0.885 0.726–1.078 0.863 0.707–1.053
Workplace Violence (ref. No) 3.779 3.064–4.650   
Perpetrators (ref. None)
 Client    2.991 2.301–3.889
 Colleague or boss    5.684 4.195–7.702
  1. a Multiple logistic regression analysis including variables of sex, age, number of employees, working time, shift work, emotional labor, ergonomic risk factors, job demand, job control, social support, job insecurity, lack of reward, and workplace violence
  2. bMultiple logistic regression analysis including variables of sex, age, number of employees, working time, shift work, emotional labor, ergonomic risk factors, job demand, job control, social support, job insecurity, lack of reward, and perpetrators of violence