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Table 2 Mean (standard deviation) scores from the Korean Occupational Stress Scale (KOSS)

From: Factors Related to Sleep Disorders among Male Firefighters

Categories in the KOSS Firefighter Reference*
(Q25-Q75)
Job demand 43.5 (15.1) 50.1 (41.7-58.4)
Insufficient job control 48.6 (12.0) 50.1 (41.7-66.7)
Interpersonal conflict 35.8 (10.9) 33.4 (33.3-44.5)
Job insecurity 30.1 (16.7) 50.1 (33.4-66.7)
Organizational system 43.2 (12.8) 50.1 (41.7-66.7)
Lack of rewards 41.0 (12.5) 55.6 (33.4-66.7)
Occupational climate 36.7 (14.6) 41.7 (33.4-50.1)
Total 39.9 (8.8) 48.5 (42.5-54.8)
  1. *National Study for Development and Standardization of Occupational Stress
  2. Quartiles.