Table 2. Hazard ratios (HR) and confidence intervals (CI) for death based on the multivariable Cox proportional hazards model.

	Overall HR (95 % CI; p-value)	HR for 0–2 months (95 % CI; p -value)	HR after 2 months (95 % CI; p -value)
Hemodialysis vs. no dialysis	0.23 (0.18–0.29, p<0.001)	0.07 (0.06–0.1, p<0.001)	1.14 (0.61–2.13, p = 0.67)
Age (decade)	1.42 (1.36–1.49, p<0.001)	1.45 (1.29–1.64, p<0.001)	1.41 (1.34–1.48, p<0.001)
Sex (f vs. m)	0.92 (0.86–0.98, p = 0.01)	1.06 (0.91–1.23, p = 0.48)	0.93 (0.88–0.99, p = 0.02)
COPD (no vs. yes)	0.86 (0.77–0.95, p = 0.003	0.77 (0.58–1.02, p = 0.06)	0.89 (0.8–0.99, p = 0.03)
Diabetes mellitus (no vs. yes)	1.20 (1.13–1.27, p<0.001)	1.12 (0.94–1.33, p = 0.19)	1,23 (1.15–1.31, p<0.001)
Heart disease (no vs. yes)	1.1 (1.03–1.17, p = 0.01)	1.55 (1.29–1.86, p<0.001)	1.03 (0.96–1.1, p = 0.44)
Hypertension (no vs. yes)	0.57 (0.54–0.61, p<0.001)	0.4 (0.34–0.47, p<0.001)	0.6 (0.56–0.63, p<0.001)
Liver disease (no vs. yes)	1.12 (1.0–1.26, p = 0.05)	1.5 (1.15–1.96, p = 0.001)	1.16 (1.02–1.31, p = 0.02)
Neoplasia (no vs. yes)	1.05 (0.97–1.15, p = 0.24)	1.02 (0.82–1.28, p = 0.84)	1.16 (1.02–1.31, p = 0.02)
Vascular disease (no vs. yes)	1.11 (1.04–1.18, p = 0.002)	0.97 (0.81–1.15, p = 0.69)	1.13 (1.06–1.21, p<0.001)