Table 6.

Multivariable Linear Regression Analysis on the Effect of INR Level Adjusted for Sex, Age, Diabetes Mellitus, Smoking, and ASA Classification on Hospital Length of Stay

Variable	Hospital length of stay
	β (95% CI)	P
INR level	0.358 (0.195, 0.521)	<0.0001
Male sex	−0.741 (−0.964, −0.519)	<0.0001
Age	0.026 (0.013, 0.038)	<0.0001
Diabetes mellitus	0.536 (0.268, 0.804)	<0.0001
Current smoker	0.513 (0.135, 0.891)	0.008
ASA classification	0.565 (0.367, 0.764)	<0.0001

β = β regression coefficient, CI = confidence interval, INR = international normalized ratio

Italics denote statistical significance.