Table 3.

Survival analysis using a proportional-hazards Cox regression model

Variables	Univariate analysis		Multivariate analysis
	hazard ratio (95% CI)	p value	hazard ratio (95% CI)	p value
Small-bowel angioectasia	1.68 (1.04–2.71)	0.04	1.23 (0.72–2.10)	0.45
Age	1.08 (1.05–1.10)	<0.01	1.06 (1.03–1.08)	<0.01
Congestive heart failure	3.69 (2.27–6.00)	<0.01	1.97 (0.99–3.93)	0.05
Ischaemic heart disease	1.46 (0.81–2.63)	0.21
Heart valve disease	2.98 (1.80–4.95)	<0.01	0.90 (0.43–1.85)	0.77
Atrial fibrillation	4.90 (2.89–8.29)	<0.01	1.68 (0.88–3.19)	0.12
Previous stroke	2.40 (1.28–4.50)	0.01	1.47 (0.73–2.97)	0.29
Abdominal aorta aneurism	14.62 (1.91–112.19)	0.01	2.42 (0.19–30.55)	0.49
Peripheral arterial disease	4.46 (1.61–12.35)	0.01	6.08 (2.09–17.72)	0.01
Previous mesenteric ischaemia	13.44 (3.89–46.51)	<0.01	9.60 (2.10–43.94)	0.04
Chronic kidney disease	3.50 (2.09–5.85)	<0.01	2.02 (1.18–3.48)	0.01

Bold values indicate statistical significance.