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Time since office blood stool test: Grouped year recode 1 (2000 method)

Codes and Frequencies

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For sample adults aged 40 and older who ever had an office blood stool test, BSTOLGYRR1 is a recoded variable that indicates the number of years in grouped intervals since the last office blood stool test.

This is a time category recode for the time since the most recent office blood stool test. This variable uses the same information collected in 2000 and 2003, and the same estimation method used in 2000.
There is a similar version of this variable, BSTOLGYRR2, using the estimation method in 2005.


There are no comparability issues.


  • 2010; 2015: Sample adults age 40+ who have had a office blood stool test.


  • 2010, 2015