From the 2006 National Survey of Family Growth:
(Apart from testing that may have been done with your blood donations,)Have you ever had your blood tested for HIV, the virus that causes AIDS?
When did you have that test for HIV, the virus that causes AIDS? If you have had more than one test, please tell me the date of the most recent one.
The original baseline and baseline year were revised from 15.4 to 17.2 and from 2006-08 to 2006-10, respectively. The target was adjusted from 16.9 to 18.9 to reflect the revised baseline using the original target-setting method.