Table 2

Colonoscopy surveillance in patients and controls

Surveillance colonoscopy No of patients No of controls Relative risk 95% CI
Never38841.0Reference
Ever 2180.290.06 to 1.31
Never 38841.0Reference
1 1 60.430.05 to 3.76
2+ 1120.220.03 to 1.74
  • CI, confidence interval.