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Additional results indicated cancer after abnormal blood stool test (unspecified type)

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For sample persons over age 40 who have heard of blood stool tests and have had a test with abnormal results, BSTABSCAN reports if the results indicated cancer after an abnormal blood stool test (unspecified type).

The 1987 Fields Representative's Manual noted not to ask this question for non-normal blood stool tests that were self-administered as follow-up questions were intended for medically diagnosed results.


There are no comparability issues with this variable.


  • 1987: Half of sample persons age 40+ (excluded from CAEP supplement) who have heard of blood stool test and have had test with abnormal results.


  • 1987