Sigmoidoscopy and colonoscopy are exams in which a
tube is inserted in the rectum to view the colon 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 a Sigmoidoscopy or Colonoscopy 5493 71.5 0.7 70.2 72.7
Had NOT had Sigmoidoscopy or Colonoscopy 1888 28.5 0.7 27.3 29.8

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