Table III.

Risk estimates of a colectomy at one year after CNI administration.

		95% CI
Characteristic	Risk estimate	Lower	Upper
Male gender	1.773	0.561	5.602
Age ≥40 years	1.077	0.331	3.506
Disease duration ≥4 years	0.875	0.284	2.699
Seo’s CIDAI ≥220 points	2.800	0.848	9.245
Prior AZA treatment	1.385	0.416	4.612
Undermining ulcer present	0.477	0.156	1.464
Pancolitis	2.500	0.701	8.915
C7-HRP positivity	3.600	1.097	11.809
PSL ≥10,000 mg	3.429	1.010	11.643
CNI non-responder	33.750	7.447	152.951

Values in bold print are statistically significant. AZA, azathioprine; CIDAI, complex integrated disease activity index; CI, confidence interval: CNI, calcineurin inhibitor; PSL, prednisolone.