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Description
For sample persons over age 40 who have heard of a blood stool test and have had a test but don't know the time since the last test, BSTLGYRE1 reports the respondent's estimated time since the 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, have had a blood stool test, and for whom the month, year, and date of last test was unknown.
