Psychomotor Vigilance Testing of Professional Drivers in the Occupational Health Clinic: a Potential Objective Screen for Daytime Sleepiness
Published Date:Mar 2012
Source:J Occup Environ Med. 54(3):296-302.
Pubmed Central ID:PMC3742032
Funding:K24 HL093218/HL/NHLBI NIH HHS/United States
P01 HL095491/HL/NHLBI NIH HHS/United States
R01 HL085188/HL/NHLBI NIH HHS/United States
R01 HL090897/HL/NHLBI NIH HHS/United States
T42 OH 008416-03/OH/NIOSH CDC HHS/United States
Psychomotor vigilance testing (PVT) rapidly assesses attention, reaction time (RT) and abnormal vigilance. Thus, PVT may be an adjunct to screening drivers for high risk obstructive sleep apnea (OSA)/excess daytime sleepiness (EDS).
Commercial drivers and emergency responders undergoing occupational examinations took a 10-minute PVT and were instructed to achieve their fastest possible RTs. Participants with maximum RT >5 seconds or ≥2 “super lapses” (RT ≥1000ms) were categorized as “microsleepers”.
Among 193 male participants, the 15 microsleepers (8%) were significantly more obese, but not different on age or Epworth Sleepiness Score. Time of day had no effect on RT.
PVT is suitable to occupational clinics and can identify otherwise unrecognized, impaired vigilance. Further studies must validate the PVT abnormalities most predictive of OSA/EDS and vehicular crashes, compared to adiposity measures alone.
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