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Activity Number: 508
Type: Topic Contributed
Date/Time: Wednesday, August 5, 2009 : 2:00 PM to 3:50 PM
Sponsor: Social Statistics Section
Abstract - #305858
Title: Drowsy Driver Performance in a Simulated Environment: A Case-Crossover Analysis
Author(s): Linda Ng Boyle*+ and Jon Tippin and Matthew Rizzo
Companies: University of Iowa and University of Iowa and University of Iowa
Address: , , ,
Keywords: Driving ; Drowsiness ; simulator study ; case-crossover
Abstract:

A study was conducted to examine individuals who are at increased risk for drowsy driving because of obstructive sleep apnea syndrome (OSAS). Twenty-four licensed drivers diagnosed with OSAS based on standard clinical and polysomnographic criteria, participated in an hour-long driving simulator study. Microsleep episodes, which have been shown to be a useful indicator of sleep onset was identified through synchronous electroencephalographic (EEG) recordings. A case-crossover analysis compared case (microsleep) to control (non-microsleep) episodes with each participant serving as his or her own control, minimizing confounding effects of age, gender, driving record, and other fixed characteristics. Multivariate analysis of variance (MANOVA) was conducted on the steering measures to assess differences during microsleep episodes.

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