Table 3. Demographics by outpatient and inpatient ischemic colitis groups.

	Outpatient group (36 patients)	Inpatient group (29 patients)	p value
Age*	64.6±2.0	63.4±3.0	0.73
NSAIDs usage	14.0%	0%	0.0376
NSAIDs and/or aspirin usage	50%	55.2%	0.6781
Warfarin usage	5.6%	27.6%	0.0144
Any anticoagulant usage	8.3%	55.2%	< 0.001
Anti-hypertensives usage	16.7%	41.4%	0.0269
Hypotension or shock	11.1%	34.5%	0.0227
Severe lung disease	2.8%	62.1%	< 0.001
Severe heart disease	19.4%	51.7%	0.0122
Severe renal disease	8.3%	58.6%	0.0001
Hematologic disorder+	52.8%	85.7%	0.0051
URBC transfusion before colonoscopy*	1.6±1.1	6.7±1.7	0.01
Hospital days before urgent colonoscopy++	1.2±0.1	22.9±3.0	0
Baseline Hgb*	11.1±0.5	8.9±0.5	0
Baseline PT*	12.6±0.8	13.9±0.8	0.5
Baseline PTT*	27.5±0.7	32.5±1.7	0
Baseline WBC*	10.2±0.9	12.5±1.0	0.1
Creatinine*	1.7±0.3	4.5±1.9	0.27
Prognosis score*	1.8±0.1	3.3±0.2	0

^*Mean ± SE

⁺Includes coagulation disorders or low platelet count

⁺⁺Mean hours between GI consultation and urgent colonoscopy was ≤ 12 hours