Table 1.

Demographic and anthropometric summary (n = 16)

Variable	Mean (SD)	Range
Age (y)	48.7 (14.8)	19–65
Driving experience (y)	27.4 (16.5)	3–50
Weight (lbs)	184.3 (32.0)	151–245
Height (inches)	62.9 (17.2)	61–76
Body mass index	29.1 (6.0)	19.2–40.7
Chronotype	Morning type (n = 2)
	Intermediate type (n = 11)
	Evening type (n = 2)
Risk of sleep apnea	5 of 16