title: The prevalence and characteristics associated with excessive daytime sleepiness among Australian workers.
abstract: OBJECTIVE
  To estimate the prevalence of excessive daytime sleepiness (EDS) and its associated factors in a mixed population of employed Australian workers.
  
  
  METHODS
  Study participants (n = 707) were volunteers from various Melbourne workplaces, participating in a workplace physical activity program in 2008. Daytime sleepiness was assessed using the Epworth Sleepiness Scale (ESS), with EDS defined as ESS scores >10.
  
  
  RESULTS
  In this population of adult employees (40.0% male; mean age 40.2 ± 10.4 years), prevalence of EDS was 16.0%. Characteristics associated with EDS and higher ESS scores were age, higher body mass index, markers of poorer diet, and markers of poorer mental health.
  
  
  CONCLUSIONS
  Excessive daytime sleepiness is potentially an important contributor to lower productivity and poorer mental health in the workplace. Our finding suggests that workplace health programs aimed at improving diet and body weight may also help alleviate EDS.
authors.affiliation: From the Obesity and Population Health Unit, Baker IDI Heart and Diabetes Institute and Department of Epidemiology & Preventive Medicine, School of Public Health and Preventive Medicine, Faculty of Medicine, Nursing & Health Sciences, Monash University, Victoria, Australia.
authors.forename: Winda
authors.initials: W
authors.lastname: Liviya Ng
authors.forename: Rosanne
authors.initials: R
authors.lastname: Freak-Poli
authors.forename: Anna
authors.initials: A
authors.lastname: Peeters
mesh_terms: D000328:Adult; D000367:Age Factors; D000886:Anthropometry; D015992:Body Mass Index; D006970:Disorders of Excessive Somnolence / Q000453:epidemiology* / Q000503:physiopathology; D004651:Employment; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D018570:Risk Assessment; D012307:Risk Factors; D011795:Surveys and Questionnaires; D014739:Victoria / Q000453:epidemiology