title: Shift-work and suicide ideation among police officers.
abstract: BACKGROUND
  This cross-sectional study assessed the association of shift work with suicide ideation among police officers.
  
  
  METHODS
  Shift work was based on daily payroll records over 5 years (41 women, 70 men). Standardized psychological measures were employed. ANOVA and Poisson regression were used to evaluate associations.
  
  
  RESULTS
  Among policewomen with increased depressive symptoms, prevalence of suicide ideation increased by 116% for every 10-unit increase in percentage of hours worked on day shift (prevalence ratio (PR) = 2.16; 95% confidence interval (CI) = 1.22-3.71). Among policemen with higher (but not lower) posttraumatic stress disorder (PTSD) symptoms, prevalence of suicide ideation increased by 13% with every 10-unit increase in the percentage of hours worked on afternoon shift (PR = 1.13; 95% CI = 1.00-1.22).
  
  
  CONCLUSIONS
  Prevalence of suicide ideation significantly increased among policewomen with higher depressive symptoms and increasing day shift hours, and among policemen with higher PTSD symptoms with increasing afternoon shift hours.
authors.affiliation: Department of Social & Preventive Medicine, School of Public Health & Health Professions, State University of NY at Buffalo, Buffalo, New York.
authors.forename: John M
authors.initials: JM
authors.lastname: Violanti
authors.forename: Luenda E
authors.initials: LE
authors.lastname: Charles
authors.forename: Tara A
authors.initials: TA
authors.lastname: Hartley
authors.forename: Anna
authors.initials: A
authors.lastname: Mnatsakanova
authors.forename: Michael E
authors.initials: ME
authors.lastname: Andrew
authors.forename: Desta
authors.initials: D
authors.lastname: Fekedulegn
authors.forename: Bryan
authors.initials: B
authors.lastname: Vila
authors.forename: Cecil M
authors.initials: CM
authors.lastname: Burchfiel
mesh_terms: D000328:Adult; D000367:Age Factors; D003430:Cross-Sectional Studies; D003866:Depressive Disorder / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D009784:Occupational Diseases / Q000453:epidemiology / Q000523:psychology*; D016495:Police; D012959:Socioeconomic Factors; D013313:Stress Disorders, Post-Traumatic / Q000453:epidemiology*; D013315:Stress, Psychological / Q000453:epidemiology*; D013405:Suicide / Q000523:psychology* / Q000706:statistics & numerical data; D014940:Work Schedule Tolerance / Q000523:psychology*