Data Cart

Your data extract

0 variables
0 samples
View Cart
Time since last sigmoidoscopy: Grouped year estimate

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) who did not give the date of the exam or who selected years ago in the time period format, SIGLESTY reports the grouped year estimate of the number of years since the respondent's last sigmoidoscopy.

Related Variables

  • SIGLDYR: year of the respondent's sigmoidoscopy
  • SIGLDMO: month of the respondent's most recent sigmoidoscopy

The survey form directs interviewers to, "Read answer categories." See Survey Text and Codes tabs.

For more information, please see SIGEV.


There are no comparability issues.


  • 2010; 2013; 2015: Sample adults age 40+ who have had a Sigmoidoscopy and REF/DK date of most recent Sigmoidoscopy or selected years ago for the time period format.


  • 2010, 2013, 2015