Instrument Variable Name: CT2
*Read answer categories.
1 A year ago or less
2 More than 1 year but not more than 2 years
3 More than 2 years but not more than 3 years
4 More than 3 years but not more than 5 years
5 More than 5 years but not more than 10 years
6 Over 10 years ago
9 Dont know
Universe Text: Sample adults 40+ who failed to give a complete date in either the month or year format or failed to give a complete date in the number and time period format, or entered years ago in the time period format (excluding those whose last CT colonography or virtual colonoscopy was 6-9 or over 10 years ago)
(1-6,R,D) if answer code is grayed out [go to ERR_CT2] else [go to CTREAS]
*That is not a valid response.