title: Obstructive sleep apnoea among professional taxi drivers: a pilot study.
abstract: OBJECTIVE
  This study aimed to describe the distribution of risk factors for obstructive sleep apnoea syndrome (OSAS) among taxi drivers, and to investigate differences by ethnicity in OSAS symptoms among drivers.
  
  
  METHODS
  A two-page postal questionnaire was completed by 241 professional taxi drivers from Wellington, New Zealand. Obstructive sleep apnoea syndrome was defined as having an estimated 15 or more respiratory disturbances, per hour of sleep (Respiratory Disturbance Index (RDI)> or =15) and self-reported daytime sleepiness.
  
  
  RESULTS
  Pacific and Māori taxi drivers were more likely to have symptoms and risk factors for OSAS, compared to non-Māori non-Pacific drivers. In particular, Pacific drivers had a significantly increased pre-test probability of having moderate-severe OSA (RDI> or =15).
  
  
  CONCLUSIONS
  Some professional taxi drivers are at increased risk for moderate-severe OSAS, especially Pacific and Māori taxi drivers. Untreated OSAS increases motor vehicle crash risk, so these findings have implications for the health and safety of drivers and their passengers. They suggest a need for more comprehensive research to guide policy on medical examinations required for licensing professional drivers as fit to drive.
authors.affiliation: Sleep/Wake Research Centre, Massey University, Private Bag 756, Wellington, New Zealand. r.t.firestone@massey.ac.nz
authors.forename: Ridvan Tua
authors.initials: RT
authors.lastname: Firestone
authors.forename: Kara
authors.initials: K
authors.lastname: Mihaere
authors.forename: Philippa H
authors.initials: PH
authors.lastname: Gander
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001334:Automobile Driving / Q000706:statistics & numerical data*; D049628:Body Size; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D009520:New Zealand / Q000453:epidemiology; D010865:Pilot Projects; D011177:Postal Service; D015995:Prevalence; D012307:Risk Factors; D012891:Sleep Apnea Syndromes / Q000453:epidemiology* / Q000208:ethnology; D044465:White People / Q000706:statistics & numerical data