Table 4

Predictors of colectomy according to multivariate Cox analysis

Adjusted relative risk95% CIp Value
Current smoking0.600.40–0.95 0.03
Previous appendicectomy0.400.20–0.78 0.01
Left colon lesions2.411.69–3.43<0.001
Sigmoid lesions1.691.05–2.70 0.03