(Which of the following do you think is a symptom of a stroke?
For each, tell me yes, no, or you are not sure.)
 
f. Do you think severe headache with no known cause is a symptom of a stroke?

Response Unweighted Frequency Weighted Percentage Standard Error Lower 95% Confidence
Limit
Upper 95% Confidence
Limit
Yes 2682 63.1 0.9 61.3 64.9
No 420 10.9 0.6 9.7 12.1
Don't know/not sure 994 26.0 0.9 24.4 27.7

Among all respondents, excluding refusals.
 
On Questionnaire Split A