Table 3.

Simple Logistic Regression Analysis on the Effect of INR Level on the Risk of Bleeding, Complication, and Readmission in the 30-day Postoperative Period

Variable	Bleeding requiring transfusion		Complication		Readmission
	OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P
INR level
INR ≤ 1.0	Reference		Reference		Reference
1.0 < INR ≤ 1.25	1.857 (1.309, 2.635)	0.0005	1.627 (1.218, 2.174)	0.001	1.361 (0.921, 2.012)	0.1
1.25 < INR ≤ 1.5	3.196 (1.919, 5.322)	<0.0001	2.847 (1.838, 4.411)	<0.0001	2.448 (1.374, 4.363)	0.002
INR > 1.5	4.188 (1.668, 10.514)	0.002	3.085 (1.309, 7.267)	0.01	0.669 (0.090, 4.991)	0.7

OR = odds ratio, CI = confidence interval, INR = international normalized ratio

Italics denote statistical significance.