Table 4. Multivariable analysis showing the risk factors of post-hospital discharge mortality among the surgically treated aTAAD patients (N=952).

Risk factor	HR (95% CI)	P value
Model 1
Age (years)	1.03 (1.01–1.06)	0.01
ICU stay (days)	0.96 (0.87–1.04)	0.34
Ventilation use (days)	1.00 (0.99–1.01)	0.08
CPBT	1.00 (0.99–1.01)	0.052
Albumin at admission (<25 g/dL)	2.93 (0.97–7.11)	0.03
Albumin after surgery (<25 g/dL)	2.88 (1.06–6.62)	0.02
Creatinine after surgery (>115 μmol/L)	2.77 (1.39–5.82)	0.004
Model 2
EuroSCORE II (%)	1.24 (0.09–1.41)	0.001
Score 0–4	Ref	Ref
Score 5–8	1.88 (0.87–3.11)	0.02
Score >8	3.23 (1.51–5.22)	0.01
Albumin at admission (<25 g/dL)	3.16 (0.92–8.16)	0.03
Albumin after surgery (<25 g/dL)	2.81 (1.04–6.44)	0.02
Creatinine after surgery (>115 μmol/L)	4.16 (2.00–9.49)	<0.001

Model 1: adjusted for age (years), ICU stay (days), ventilation use (days), CPBT (min), albumin at admission (<25 g/L), albumin after surgery (<25 g/L), and creatinine after surgery (>115 µmol/L); Model 2: Model 1 plus EuroSCORE II risk category (0–4%, 5–8%, >8%). aTAAD, acute type A aortic dissection; CI, confidence intervals; CPBT, cardiopulmonary bypass time; EuroSCORE, European System for Cardiac Operative Risk Evaluation; HR, hazard ratio; ICU, intensive care unit.