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CTCOLLGYRR2
Time since last CT colonoscopy: Grouped year recode 2 (2000 method)

Codes and Frequencies



An 'X' indicates the category is available for that sample

0NIUXXX
1A year ago or lessXXX
2GT 1 year, not more than 2 yrsXXX
3GT 2 years, not more than 3 yrsXXX
4GT 3 years, not more than 5 yrsXXX
5GT 5 years, not more than 10 yrsXXX
6Over 10 years agoXXX
7Unknown-refused···
8Unknown-not ascertainedXX·
9Unknown-don't knowX·X