Data Cart

Your data extract

0 variables
0 samples
View Cart
Time since last sigmoidoscopy: Grouped year recode 2 (2005 method)

Codes and Frequencies

Can't find the category you are looking for? Try the Detailed codes


For sample adults aged 40 years and older who ever had a sigmoidoscopy (SIGEV), SIGLGYRR2 is a recoded variable that reports the time since the respondent's most recent sigmoidoscopy using the same method as the 2005 survey. SIGLGYRR1 is a similar variable using method as the 2000 survey.


This recoded variable is based on the following variables:

SIGLNOTime since last sigmoidoscopy: units
SIGLTPTime since last sigmoidoscopy: time period
SIGLDMOCalendar month of last sigmoidoscopy
SIGLDYRYear of last sigmoidoscopy
SIGLESTYTime since last sigmoidoscopy: grouped year estimate

The Cancer Layout file notes that, "This is a time category recode for the time since the most recent sigmoidoscopy. All available information was used and the recoded variable was pre-filled with the response to the time category question first, if available. These data are provided by the respondent and are not imputed."

For more information, please see SIGEV.


There are no comparability issues.


  • 2010; 2013; 2015: Sample adults age 40+ who have had a Sigmoidoscopy.


  • 2010, 2013, 2015