Do you think sudden trouble seeing in one or both eyes is a symptom of a stroke?

Response Unweighted Frequency Weighted Percentage Standard Error Lower 95% Confidence
Limit
Upper 95% Confidence
Limit
Yes 3156 76.4 0.8 74.7 78.0
No 307 6.9 0.5 5.9 7.9
Don't know/not sure 683 16.7 0.7 15.3 18.2

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