Table 3

Variables in the LASSO regression and multivariate logistic regression models

Variables	LASSO regression	Logistic regression
Variables	β	β	OR (95% CI)	P value
Age	0.011221	0.017	1.017 (1.010 to 1.023)	<0.001
Male	−0.165641	−0.404	0.667 (0.568 to 0.784)	<0.001
Weight	0.023091	0.031	1.032 (1.027 to 1.037)	<0.001
Heart rate	0.000058	0.007	1.007 (1.000 to 1.014)	0.055
Respiratory rate	−0.006347	−0.042	0.959 (0.936 to 0.982)	0.001
Glucose	0.000846	0.002	1.002 (0.999 to 1.005)	0.181
SBP	−0.004721	−0.010	0.990 (0.983 to 0.997)	0.007
DBP	−0.009688	−0.015	0.985 (0.974 to 0.997)	0.011
CVP	0.063826	0.072	1.075 (1.051 to 1.099)	<0.001
Urine output	−0.000603	−0.001	0.999 (0.999 to 0.999)	<0.001
pO₂	−0.000127	−0.001	0.999 (0.998 to 1.000)	0.001
Sedative	0.173715	0.340	1.405 (1.032 to 1.912)	0.031
Ventilation	0.093818	0.189	1.209 (0.862 to 1.694)	0.272
Furosemide	−0.484207	−0.757	0.469 (0.387 to 0.569)	<0.001
Atrial fibrillation	0.193466	0.279	1.322 (1.139 to 1.536)	<0.001
Congestive heart failure	0.207495	0.305	1.357 (1.143 to 1.611)	<0.001
Stroke	−0.021989	−0.254	0.776 (0.580 to 1.038)	0.087
Left heart catheterisation	0.043483	0.166	1.181 (1.014 to 1.376)	0.033

LASSO, least absolute shrinkage and selection operator; SBP, systolic blood pressure; DBP, diastolic blood pressure; CVP, central venous pressure; pO₂, partial pressure of oxygen.