Table 3.

Univariate Analysis of predictors of colectomy at 1 year following hospitalization in immunosuppression-naïve acute severe ulcerative colitis patients

Characteristic	Odds Ratio	95% Confidence Interval
Disease duration
<1 year	1	0.74-10.66
1-5 years	2.82	0.06-4.87
> 5 years	0.54
Extent of Involvement
Localized	1	0.30-3.94
Pancolitis	1.09
Severity on endoscopy
Mild or Moderate	1	0.18-3.29
Severe	0.77
Albumin	0.82	0.34-1.97
CRP	1.00	0.99-1.02
ESR	1.01	0.97-1.03
Prior ASA Exposure
Never	1	0.47-11.59
Current	2.33	0.17-25.92
Past	2.11
Therapy escalation
No	1	0.41-5.02
Yes	1.44