At what age did you have your first heart attack?

Response Unweighted Frequency Weighted Percentage Standard Error Lower 95% Confidence
Limit		 Upper 95% Confidence
Limit
40 years or younger 21 11.4 2.6 6.3 16.6
41-54 years 49 29.4 3.7 22.1 36.7
55-64 years 55 30.1 3.7 22.8 37.3
65 + years 62 29.1 3.5 22.3 35.9

Among respondents who have ever been told that they had a heart attack,
excluding unknowns and refusals
 
On Questionnaire Split A