title: Long work hours and adiposity among police officers in a US northeast city.
abstract: OBJECTIVE
  To investigate the associations between long work hours and adiposity measures in police officers.
  
  
  METHODS
  Participants included 408 officers from the Buffalo Cardio-Metabolic Occupational Police Stress study who were examined between 2004 and 2009. Total work hours were abstracted from payroll records and questionnaires. Analysis of variance and covariance models were used.
  
  
  RESULTS
  Among male officers who worked the midnight shift, mean values of waist circumference and body mass index increased with longer work hours after adjustment for age, physical activity, energy intake, sleep duration, smoking status, police rank, activities after work (eg, child/family care, sports), and household income. Adiposity measures were not associated with work hours among women on any shift.
  
  
  CONCLUSIONS
  Working longer hours was significantly associated with larger waist circumferences and higher body mass index among male police officers working the midnight shift.
authors.affiliation: Biostatistics and Epidemiology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV 26505, USA. jgu@cdc.gov
authors.forename: Ja K
authors.initials: JK
authors.lastname: Gu
authors.forename: Luenda E
authors.initials: LE
authors.lastname: Charles
authors.forename: Cecil M
authors.initials: CM
authors.lastname: Burchfiel
authors.forename: Desta
authors.initials: D
authors.lastname: Fekedulegn
authors.forename: Khachatur
authors.initials: K
authors.lastname: Sarkisian
authors.forename: Michael E
authors.initials: ME
authors.lastname: Andrew
authors.forename: Claudia
authors.initials: C
authors.lastname: Ma
authors.forename: John M
authors.initials: JM
authors.lastname: Violanti
mesh_terms: D050154:Adiposity; D000328:Adult; D015992:Body Mass Index; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D035846:Law Enforcement; D008297:Male; D008875:Middle Aged; D011795:Surveys and Questionnaires; D013997:Time Factors; D014505:Urban Population; D055105:Waist Circumference; D014940:Work Schedule Tolerance / Q000502:physiology*