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Description
For sample persons over 40 who have ever heard of blood stool tests and have had a blood stool test, BSTLGYRR is a recoded variable that reports the estimated time since the person's last blood stool test (of an unspecified type) in grouped years.
Comparability
This variable has no comparability issues.
Universe
1992: Half of sample persons persons age 40+ in quarters 1 and 2, and first 2 weeks of quarter 3 (excluded from CAEP supplement) who have ever heard of a blood stool test and have had a blood stool test.
