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Year of most recent Cologuard test


COLGLDYR is a 4-digit-numeric variable.

0: Not in universe
9996: Time period format
9997: Unknown-refused
9998: Unknown-not ascertained
9999: Unknown-don't know


For sample adults aged 40 and older who had ever had a Cologuard test, COLGLDYR reports the year of the most recent Cologuard test. COLGLDYR should be used with COLGLDMO, the month of the most recent Cologuard test.

Please refer to COLGEV for more information about Cologuard testing variables.


The 2018 Field Representative's Manual noted: "Cologuard is a new type of stool test to check for colon cancer. Unlike other stool tests, Cologuard looks for changes in DNA in addition to checking for blood in your stool. The Cologuard test is shipped to your home in a box that includes a container for your stool sample."


This variable is comparable over time.


  • 2018: Sample adults age 40+ who ever had a Cologuard test.


  • 2018