Table 7.

Independent risk factors of mortality

Characteristics	In-hospital mortality univariate logistic regression		Mortality within the follow-up univariate proportional hazard regression
	Odds ratios with 95%CI	p value	Hazard ratios with 95%CI	p value
Preoperative
Age [years]	1.06 (1.01–1.1)	0.01	1.07 (1.05–1.09)	< 0.001
Cardiopulmonary resuscitation	2.85 (1.02–7.97)	0.046	2.86 (1.7–4.8)	< 0.001
Severe shock	2.24 (1.26–3.99)	0.006	1.43 (1.1–1.9)	0.006
ST-elevation myocardial infarction (STEMI)	3.53 (1.5–8.1)	0.003	1.3 (0.8–2.2)	0.345
Non-ST-elevation myocardial infarction (NSTEMI)	0.92 (0.4–2.0)	0.830	1.64 (1.1–2.5)	0.018
No biochemical criteria for myocardial injury	0.23 (0.1–0.97)	0.046	0.4 (0.23 to 0.7)	0.001
eGFR [ml/min]	0.97 (0.96–0.99)	< 0.001	0.98 (0.98–0.99)	< 0.001
Atrial fibrillation	1.43 (0.85–2.43)	0.174	1.6 (1.3–2)	< 0.001
Number of narrowed coronary vessels	1.01 (0.56–2.15)	0.785	1.12 (0.8–1.58)	0.509
Active infection	5.3 (2.1–13.5)	< 0.001	2.56 (1.5–4.4)	0.001
Stenosis of left main coronary artery	1.07 (0.51–2.23)	0.87	1.04 (0.73–1.49)	0.82
Intraoperative
CPB time [min]	1 (0.99–1.004)	0.37	1 (0.999–1.005)	0.201
Cross-clamp time [min]	1 (0.99–1)	0.051	1 (0.992–1.006)	0.81
Postoperative
Bypass revision	5.03 (0.97–26)	0.054	1.6 (0.51–5.04)	0.419
IABP	1.21 (0.95–1.54)	0.127	1.03 (0.82–0.29)	0.822
Length of noradrenaline support [days]	1.05 (0.94–1.17)	0.421	0.95 (0.88–1.03)	0.201
Length of dobutamine support [days]	1.03 (0.95–1.11)	0.538	0.98 (0.93–1.03)	0.41
Length of adrenaline support [days]	1.02 (0.86–1.2)	0.819	0.97 (0.88–1.07)	0.569
Length of mechanical ventilation [hours]	1 (0.997–1.006)	0.482	1 (0.996–1.002)	0.444
Delirium	1.33 (0.53–3.34)	0.549	1.1 (0.69–1.76)	0.689
Stroke	2.12 (0.46–9.7)	0.335	2.24 (1.04–4.8)	0.039
Gastrointestinal bleeding	4.9 (2.04–11.97)	< 0.001	1.35 (0.74–2.44)	0.324

significant p-values are presented in italic