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

Response Unweighted Frequency Weighted Percentage Standard Error Lower 95% Confidence
Limit
Upper 95% Confidence
Limit
Yes 1247 31.6 0.9 29.7 33.4
No 1756 40.1 1.0 38.2 42.1
Don't know/not sure 1190 28.3 0.9 26.5 30.0

Among all respondents, excluding refusals.
 
On Questionnaire Split B