Prognostic dynamic nomogram integrated with metabolic acidosis for in-hospital mortality and organ malperfusion in acute type B aortic dissection patients undergoing thoracic endovascular aortic repair

Table 2 In-hospital outcomes

Variables	Derivation cohort	External validation cohort	P
Mortality	20 (7.0)	6 (7.8)	0.809
Organ malperfusion	25 (8.7)	7 (9.1)	0.923
Lower extremity malperfusion	7 (2.4)	2 (2.6)	0.940
Visceral malperfusion	4 (1.4)	2 (2.6)	0.611
Renal malperfusion	14 (4.9)	3 (3.9)	0.713
Spinal cord malperfusion	5 (1.7)	2 (2.6)	0.631
Hospital stay, days	17.0 (13.0–23.0)	17.0 (13.0–21.0)	0.591
Intensive care unit stay, hours	72.0 (18.0–144.0)	52.0 (4.0–133.5)	0.927

ISSN: 1471-2261