TABLE 2.

Primary and Secondary Outcomes in Vaccinated Patients Undergoing Surgery Versus Propensity Score Matched Patients Undergoing Surgery Without Prior Vaccination

	Controla N = 7438	Vaccinationa N = 3104
	N (%)	N (%)	IRRb(95% CI)	P-valuec
Mortality	45 (0.6)	13 (0.4)	0.63 (0.32,1.13)	0.14
COVD-19 positive after surgery	25 (0.3)	1 (0.0)	0.09 (0.01,0.44)	0.02
Composite pulmonary complications d	222 (3.0)	53 (1.7)	0.54 (0.39,0.72)	<0.001
Composite thrombotic complications e	114 (1.5)	35 (1.1)	0.68 (0.46,0.99)	0.05
Readmissions	277 (3.7)	97 (3.1)	0.8 (0.63,1.00)	0.06
Hospital length of stay [median (IQR)]	2.00 [1.00, 6.00]	2.00 [1.00, 5.00]	0.78 (0.69,0.89)	<0.001

CCI indicates Charlson Comorbidity Index; CI, confidence interval; IQR, interquartile range; IRR, incidence rate ratio.

^aevent numbers and unadjusted rates.

^bincidence rate ratio with Control group as Reference (1.00) in a Poisson regression model adjusting for age and CCI.

^cp-value for incidence rate ratio adjusting for age and CCI.

^d30-day pulmonary complications: pneumonia, mechanical ventilation, acute respiratory distress syndrome, or acute respiratory failure.

^e30-day thrombotic complications: deep vein thrombosis, pulmonary embolism, myocardial infarction, ischemic stroke, and arterial thrombosis.