title: Shift work and sleep disorder among textile mill workers in Bahir Dar, northwest Ethiopia.
abstract: OBJECTIVE
  To assess the length and quality of sleep among shift workers at Bahir Dar textile mill.
  
  
  METHODS
  A cross sectional study using structured questionnaire that contained sociodemographic variables, duration of work, work schedule, number of sleeping hours, sleep disorders, and associated reasons for such disorders.
  
  
  METHODS
  A textile mill in Bahir Dar, northwest Ethiopia.
  
  
  METHODS
  Three-hundred ninety four random sample of production workers of the mill.
  
  
  METHODS
  Sleep disorders, and the impact of external and home environment on sleep.
  
  
  RESULTS
  The mean duration of work in the factory was 25.4 +/- 7.1 years. Ninety-seven per cent of the study population work in a rotating eight hourly shift system. The mean number of hours a worker sleeps after a worked shift was 5.1 +/- 2.3. Two hundred thirty (58.4%) claimed to experience a sleep disorder. Sleep disturbance was significantly associated with rotating shift work, external environmental noise, and working in the spinning department.
  
  
  CONCLUSIONS
  The majority of the workers in Bahir Dar textile mill experienced sleep disturbances as detailed in the study methodology.
authors.affiliation: Department of Physiology, Gondar College of Medical Sciences, Ethiopia.
authors.forename: Y
authors.initials: Y
authors.lastname: Abebe
authors.forename: M
authors.initials: M
authors.lastname: Fantahun
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D005002:Ethiopia; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000209:etiology*; D009790:Occupations; D010561:Personnel Staffing and Scheduling; D012307:Risk Factors; D020178:Sleep Disorders, Circadian Rhythm / Q000209:etiology*; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D013784:Textiles; D013997:Time Factors; D014504:Urban Health; D014940:Work Schedule Tolerance