Codes and Frequencies
For sample adults aged 40 and older who ever had a colonoscopy (COLEV), COLLY reports the main reason that the respondent underwent colonoscopy.
The 2010 and forward Field Representative's Manual advised that:
See Survey Text and Codes tabs.
For more information, please see COLEV.
- 2010; 2013; 2015: Sample adults age 40+ who have had a colonoscopy.
- 2010, 2013, 2015
- 2010, 2013 : SAMPWEIGHT