Central nervous injury risk factors after endovascular repair of a thoracic aortic aneurysm with type B aortic dissection

Table 4 Multivariate logistic regression analysis of postoperative central nervous system injury in patients

Variable	β	SE	Wald	P	OR	95%CI
Age (year)	0.387	0.172	5.063	0.024	1.473	1.051–2.063
Surgery time (hour)	0.629	0.186	11.436	0.001	1.875	1.303–2.701
History of hypertension	1.053	0.221	22.702	< 0.001	2.866	1.859–4.420
Mechanical ventilation time (hour)	0.445	0.219	4.129	0.042	1.561	1.016–2.397
ICU stay time (day)	0.699	0.187	13.972	< 0.001	2.012	1.394–2.902

ICU: Intensive care unit.