During the past 30 days, have you ever nodded off or fallen
asleep, even just for a brief moment, while driving?

Response Unweighted Frequency Weighted Percentage Standard Error Lower 95% Confidence
Limit
Upper 95% Confidence
Limit
Yes 90 2.4 0.3 1.8 3.1
No 3888 94.3 0.4 93.4 95.2
Don't drive 175 3.1 0.3 2.5 3.7
Don't have license 15 0.2 0.1 0.1 0.3

Among all respondents, excluding unknowns and refusals.
 
On Questionnaire Split B