Sigmoidoscopy and colonoscopy are exams in which a
tube is inserted in the rectum to view the colon for
for signs of cancer or other health problems.
Have you ever had either of these exams?

Response Unweighted Frequency Weighted Percentage Standard Error 95% Confidence Limit
Lower Upper
Had NOT had Sigmoidoscopy or Colonoscopy 2277 33.1 0.7 31.7 34.5
Had a Sigmoidoscopy or Colonoscopy 5414 66.9 0.7 65.5 68.3

Among respondents ages 50 years and older, excluding unknowns and refusals.