Table 2. Bivariate Analysis Of Predictors Of All-Cause Mortality Following Vascular Surgery In Patients ≥ 40 Years Of Age In The Derivation Cohort.

Characteristic	Odds ratio	95% CI	p-value
Pre-operative risk factors
Age (years)	1.037	1.010–1.064	0.006
Gender (male)	1.682	0.935–3.024	0.082
Diabetic	0.774	0.447–1.341	0.361
Hypertensive	0.962	0.570–1.625	0.885
Smoker	1.247	0.736–2.111	0.412
Ischaemic heart disease	1.041	0.627–1.728	0.876
Congestive cardiac failure	1.035	0.128–8.407	0.974
Stroke	0.519	0.242–1.117	0.094
Creatinine > 180 μmol.l-1	6.909	3.812–12.522	< 0.001
Pre-operative glucose	0.977	0.896–1.066	0.604
Pre-operative haemoglobin	0.881	0.778–0.997	0.044
Pre-operative chronic medical therapy
Statin therapy	1.791	0.795–4.037	0.160
Chronic beta-blockade	2.147	1.267–3.639	0.589
Surgical risk factors
Supra-inguinal surgery	0.991	0.590–1.663	0.971
Duration of surgery (minutes)	1.011	1.007–1.016	< 0.001
Surgery out of hours	3.176	1.599–6.309	0.001
Postoperative physiological data and risk factors
Withdrawal of chronic beta-blockade	2.780	1.560–4.956	0.001
Mean last daily heart rate	1.021	1.005–1.038	0.012
Mean daily SBP < 100 or > 179 mmHg	4.006	2.026–7.920	0.000
Mean last daily SBP	1.002	0.990–1.014	0.767
Mean daily last DBP	1.006	0.981–1.031	0.637
Postoperative glucose	1.082	1.003–1.166	0.041
Postoperative haemoglobin	0.866	0737–1.018	0.081

CI: confidence interval; SBP: systolic blood pressure; DBP: diastolic blood pressure.