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Description
For sample persons ages 18 and over who have had their blood tested for the AIDS virus infection more than one time or an unknown number of times, ATPREQVOL reports if past blood tests for AIDS were required, voluntary, or some of each.
Comparability
There are no comparability issues with this variable.
Universe
1990: Sample persons age 18+ who have ever heard of blood test for AIDS virus infection and who have had blood tested for the AIDS virus infection more than one time (or for an unknown number of times).
