Have you donated blood since March 1985?

Response Unweighted Frequency Weighted Percentage Standard Error Lower 95% Confidence
Limit
Upper 95% Confidence
Limit
Yes 963 29.9 0.9 28.1 31.7
No 2348 70.1 0.9 68.3 71.9

Among respondents ages 18 to 64 years, excluding those who reported
not applicable regarding risk of HIV infection, unknowns and refusals.