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Reason why no blood stool test (unspecified type) ever/in past 3 years

Codes and Frequencies

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For sample persons over age 40 who have heard of a blood stool test and have not had a test in the past three years or have never had one, BSTYNOEV3YR reports the reason for not having a test (ever or in the past three years).


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 not had test, or who have had test but not in the past 3 years.


  • 1987