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Table 1 Subject characteristics (2014 KWCS)

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

Characteristics Classification N (%)
Sex Male 13214 (52.6 %)
Female 11924 (47.4 %)
Age <30 3516 (14.0 %)
30–39 6856 (27.3 %)
40–49 7365 (29.3 %)
50–59 4831 (19.2 %)
≥60 2570 (10.2 %)
Education Middle school or below 2530 (10.1 %)
High school 8981 (35.7 %)
College or above 13626 (54.2 %)
Income (10 thousands) <100 2555 (10.2 %)
100–199 8526 (33.9 %)
200–299 7601 (30.2 %)
≥300 6456 (25.7 %)
Job type Blue collar 7499 (29.8 %)
Service work 5825 (23.2 %)
White collar 11814 (47.0 %)
Type of employment Regular 19734 (78.5 %)
Temporary 5404 (21.5 %)
Number of employees <5 4556 (18.1 %)
5–49 13374 (53.2 %)
50–299 4965 (19.7 %)
≥300 2243 (8.9 %)
Working time ≤40 13240 (52.7 %)
41–52 7552 (30.0 %)
53–60 3093 (12.3 %)
≥61 1253 (5.0 %)
Shift work No 22682 (90.2 %)
Yes 2456 (9.8 %)
Emotional labor No 18654 (74.2 %)
Yes 6483 (25.8 %)
Physical risk factors No 15684 (62.4 %)
Yes 9454 (37.6 %)
Biochemical risk factors No 19486 (77.5 %)
Yes 5652 (22.5 %)
Ergonomic risk factors No 4785 (19.0 %)
Yes 20353 (81.0 %)
Job demand Low 15625 (62.2 %)
High 9513 (37.8 %)
Insufficient job control Low 13546 (53.9 %)
High 11592 (46.1 %)
Inadequate social support Low 15605 (62.1 %)
High 9533 (37.9 %)
Job insecurity Low 15726 (62.6 %)
High 9412 (37.4 %)
Lack of reward Low 19730 (78.5 %)
High 5408 (21.5 %)
Workplace Violence No 23627 (94.0 %)
Yes 1510 (6.0 %)
Perpetrators None 23627 (94.0 %)
  Client 1052 (4.2 %)
  Coleague 459 (1.8 %)