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 3022 70.2 1.0 68.3 72.1
No 320 8.7 0.6 7.4 9.9
Don't know/not sure 845 21.2 0.9 19.5 22.8

Among all respondents, excluding refusals.
 
On Questionnaire Split B