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Reason for blood stool test (unspecified type) ever: Blood in stool

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For sample adults over age 40 who have heard of blood stool tests and have ever had a test because of a health problem, BSTYEVBS reports that a reason for the test (of an unspecified type) was blood in the stool.

Respondents could report more than one reason including:


This variable has no comparability issues.


  • 1987: Half of sample persons age 40+ (excluded from CAEP supplement) who have heard of blood stool test and have had test because of a health problem.


  • 1987