Table 4.

Multivariate cox regression analysis for 2-year mortality

Factor	HR	95 % confidence interval	P value
Acute kidney injury 3	7.35	2.15–25.07	0.001
Peripheral vascular disease	1.95	1.12–3.39	0.019
Chronic renal failure	1.59	0.96–2.62	0.07
Diabetes mellitus	0.83	0.49–1.40	0.48
Female gender	0.47	0.28–0.80	0.005

Analysis was further adjusted for age, coronary artery disease and hypertension