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 1346 34.6 0.9 32.8 36.5
No 1759 40.3 0.9 38.5 42.2
Don't know/not sure 1044 25.0 0.8 23.4 26.7

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