Table 2

Results of univariate analysis for predictors of clinical remission and colectomy

	Clinical remission		Colectomy
	OR (95% CI)	p Value	OR (95% CI)	p Value
Female gender	0.74 (0.34 to 1.59)	0.57	0.81 (0.39 to 1.72)	0.73
Age	1.62 (0.75 to 3.52)	0.29	0.47 (0.22 to 1.02)	0.85
Pancolitis	1.23 (0.48 to 3.16)	0.85	1.56 (0.61 to 3.97)	0.49
Disease duration	0.99 (0.41 to 2.42)	0.83	0.58 (0.25 to 1.37)	0.31
Baseline Mayo score ⩾10	0.36 (0.15 to 0.83)	0.028	3.42 (1.56 to 7.51)	0.004
Prednisone ⩾1 year preinfliximab	0.40 (0.14 to 1.17)	0.45	1.68 (0.69 to 4.15)	0.38
Concurrent immunosuppression	1.16 (0.47 to 2.88)	0.92	1.13 (0.46 to 2.75)	0.96
Baseline CRP >5 mg/l	0.60 (0.21 to 1.69)	0.48	1.94 (0.65 to 5.81)	0.35
pANCA positive	0.89 (0.36 to 2.16)	0.79	0.58 (0.25 to 1.33)	0.28
Antibodies to infliximab	0.15 (0.06 to 0.40)	<0.001	2.71 (1.22 to 6.01)	0.023
Detectable trough serum infliximab	12.0 (4.76 to 30.26)	<0.001	0.13 (0.05 to 0.35)	<0.001

Values in bold are statistically significant with a p value <0.05.
CRP, C-reactive protein; pANCA, perinuclear antineutrophil cytoplasmic antibody.