title: Relationship of workplace violence and perpetrators on sleep disturbance-data from the 4th Korean working conditions survey.
abstract: OBJECTIVE
  The present study analyzed relationship of workplace violence and perpetrators of violence on sleep disturbance among wage workers in Korea.
  
  
  METHODS
  The present study used data from the 4th Korean Working Conditions Survey (KWCS) of 2014 in selecting a total of 25,138wage workers as the study population, which excluded those who failed or refused to respond to questions required for the present study. The workplace violence experience group included people who satisfied at least one of six relevant criteria (verbal abuse, unwanted sexual attention, threatening or humiliating behavior, physical violence, bullying/harassment, and sexual harassment) and the group was divided according to whether the perpetrator of violence was a client or colleague. Presence of sleep disturbance was determined based on subjective symptoms felt within the past 12 months by each individual. A multiple logistic regression analysis was performed to identify the effects on sleep distance according to general, occupational, and psychosocial characteristics, as well as the types of workplace violence and perpetrators of violence.
  
  
  RESULTS
  Workplace violence was found as a factor affecting sleep disturbance (OR = 3.773, 95 % CI = 3.058-4.655), and with respect to perpetrators of violence, complaint of sleep disturbance symptoms was higher when the perpetrator was a colleague or boss (OR = 5.688, 95 % CI 4.189-7.723) than a client (OR = 2.992, 95 % CI 2.301-3.890).
  
  
  CONCLUSIONS
  Workplace violence had an effect on occurrence of sleep disturbance and when the perpetrators of violence was a boss or colleague at work, the risk for symptoms such as sleep disturbance increased, which indicated the need for appropriate intervention from a workplace healthcare perspective, including preventive education of workplace violence among employees.
authors: Department of Occupational & Environmental Medicine, College of Medicine, Dong-A University, Busan, South Korea.
authors: Taejun
authors: T
authors: Yoo
authors: Department of Occupational & Environmental Medicine, College of Medicine, Dong-A University, Busan, South Korea.
authors: Byeongjin
authors: B
authors: Ye
authors: Department of Occupational & Environmental Medicine, College of Medicine, Dong-A University, Busan, South Korea.
authors: Jung-Il
authors: JI
authors: Kim
authors: Department of Occupational & Environmental Medicine, College of Medicine, Dong-A University, Busan, South Korea.
authors: Siwoo
authors: S
authors: Park
keywords: Korean working conditions survey; Sleep disturbance; Workplace violence