Related Variables

	carslpy	How many car accidents occurred because you felt sleepy or fell asleep behind the wheel of a car	Lab Visit
	nmcaracc	How many 'near miss' car accidents have you had due to sleepiness	Lab Visit
	offroad	Over the last month, have you experienced: had to pull off road while driving or almost had been in a car accident due to sleepiness	Lab Visit
	slpcrash	Over the last month, have you experienced: almost had/been in a car accident because of sleepiness	Lab Visit
	essq4	How likely are you to doze off or fall asleep while being a passenger in a car for an hour without a break	Questionnaires
	essq8	How likely are you to doze off or fall asleep while in a car, stopped in traffic	Questionnaires