title: Factors associated with the occurrence of functional dyspepsia and insomnia in shift-working nurses.
abstract: BACKGROUND
  In South Korea, people are growing more and more interested in the early detection and prevention of health problems in shift workers.
  
  
  OBJECTIVE
  This study aims to investigate demographic, work-related and health-related factors relevant to functional dyspepsia and insomnia in shift-working nurses in South Korea.
  
  
  METHODS
  The sample was comprised of 1431 nurses who worked rotating shifts in three large hospitals in Seoul and Gyeonggi Province, South Korea. The questionnaire consisted of factors assessing demographic, work-related and health-related characteristics. Rome III criteria and the Insomnia Severity Index were applied to identify functional dyspepsia and insomnia, respectively. The survey was ongoing for approximately one month starting from 17 June 2013.
  
  
  RESULTS
  The results of this study indicated that gender, body mass index, the number of night shifts worked, work-related stress, and regular dietary patterns were related to functional dyspepsia and insomnia in shift-working nurses.
  
  
  CONCLUSIONS
  This study may help establish suitable working conditions and build workplace health promotion programs for shift-working nurses.
authors.affiliation: School of Medicine, The Catholic University of Korea, Seoul, South Korea.
authors.forename: Hye-Sun
authors.initials: HS
authors.lastname: Jung
authors.affiliation: Department of Nursing, University of Ulsan, Ulsan, South Korea.
authors.forename: Bokim
authors.initials: B
authors.lastname: Lee
mesh_terms: D000328:Adult; D015992:Body Mass Index; D004415:Dyspepsia / Q000453:epidemiology*; D005247:Feeding Behavior; D005260:Female; D006801:Humans; D008297:Male; D009741:Nursing Staff, Hospital; D010561:Personnel Staffing and Scheduling; D056910:Republic of Korea / Q000453:epidemiology; D012307:Risk Factors; D012737:Sex Factors; D007319:Sleep Initiation and Maintenance Disorders / Q000453:epidemiology*; D013315:Stress, Psychological / Q000523:psychology; D011795:Surveys and Questionnaires; D014940:Work Schedule Tolerance / Q000502:physiology*; D017132:Workplace / Q000523:psychology; D055815:Young Adult
keywords: Shift work; digestive system diseases; occupational health; sleep disorders