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Time since most recent Cologuard test: Number of units


COLGLNO is a 2-digit-numeric variable.

0: Not in universe
95: 95+
97: Unknown-refused
98: Unknown-not ascertained
99: Unknown-don't know


For sample adults aged 40 and older who have ever had a Cologuard test and reported the time since the last Cologuard test in a number and time period format, COLGLNO reports the number of time units (e.g., the number of months since the most recent test). COLGLNO should be used alongside COLGLTP, which reports the type of time unit (days, weeks, months, or years) for the time since the last Cologuard test.

Please see 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 and answered in number and time period format.


  • 2018