title: Factors associated with suicide ideation among subway drivers in Korea.
abstract: BACKGROUND
  There were several suicide events of subway drivers in Korea. The aim of this study is to explore work-related factors associated with suicide ideation among subway drivers.
  
  
  METHODS
  We analyzed data from 980 male subway drivers. A section of the Korean version of the Composite International Diagnostic Interview (K-CIDI 2.1) was administered by trained interviewers to judge whether a driver has suicide ideation and to diagnose psychiatric disorders. A questionnaire was also administered to collect data on sociodemographic characteristics, work environments, occupational stress, person under train (PUT) experience, and work-related problems. Occupational stress was examined by using the Korean Occupational Stress Scale (KOSS). Logistic regression was applied to evaluate the association between work-related factors and suicide ideation among subway drivers.
  
  
  RESULTS
  Regarding work-related problems, conflict with passengers and sudden stops due to the emergency bell were significantly associated with suicide ideation. MDD, PTSD, and panic disorder were strongly associated with suicide ideation. In the analysis of occupational stress, insufficient job control (OR 2.34) and lack of reward (OR 2.52) were associated with suicide ideation even after being adjusted for psychiatric disorders and other work-related factors.
  
  
  CONCLUSIONS
  Insufficient job control and lack of reward were associated with suicide ideation among subway drivers. Strategies for drivers to have autonomy while working and to achieve effort-reward balance should be implemented. Furthermore, drivers who have experienced negative work-related problems should be managed appropriately.
authors.affiliation: Department of Occupational and Environmental Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Junsu
authors.initials: J
authors.lastname: Byun
authors.affiliation: Department of Occupational and Environmental Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Hyoung-Ryoul
authors.initials: HR
authors.lastname: Kim
authors.affiliation: Department of Occupational and Environmental Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Hye-Eun
authors.initials: HE
authors.lastname: Lee
authors.affiliation: Healing Center, The Seoul Metropolitan Rapid Transit Cooperation, Seoul, Korea.
authors.forename: Se-Eun
authors.initials: SE
authors.lastname: Kim
authors.affiliation: Cheongsong Health Center and County Hospital, Cheongsong, Korea.
authors.forename: Jongin
authors.identifier: 0000-0003-4337-8444
authors.initials: J
authors.lastname: Lee
keywords: Occupational stress; Subway drivers; Suicide; Suicide ideation