Table 2. Associations Between Timing of Stroke and Surgical Mortality Among 16,750 Patients Who Developed Postoperative Stroke After Non-Cardiac Surgery.

	Mortality n/N (%)	Crude		Multivariable
		OR (95% CI)	P-value	OR (95% CI)	P-value
Delayed postoperative stroke	1,083/5,577 (19.4)	Reference		Reference
Early postoperative stroke	2,785/11,173 (24.9)	1.38 (1.27, 1.49)	<0.01	1.39 (1.29, 1.52)	<0.01

Adjusted analyses were controlled for age, sex, body mass index, American Society of Anesthesiologists (ASA) physical status class, ventilator dependence, emergency surgery, systemic sepsis and other binary variables providing information about the patient’s preoperative comorbidities including dialysis dependence, current tobacco use, diabetes mellitus, congestive heart failure within 30 days before surgery, history of chronic obstructive pulmonary disease requiring chronic bronchodilator therapy, history of myocardial infarction within 6 months before surgery, and hypertension requiring medication. OR: odds ratio; CI: confidence interval.