Table 1

Prediction of event-free survival probability using the Cox proportional hazards regression model based on Lasso regression

Variable	Coefficients	z score	HR	95%CI	P value
Age	0.043	4.167	1.044	0.023 to 0.063	<0.001
Haemoglobin	−0.015	−2.871	0.985	−0.026 to −0.005	0.004
Urea	0.074	3.947	1.077	0.037 to 0.111	<0.001
Serum sodium	−0.074	−5.694	0.929	−0.1 to −0.049	<0.001
ALT/AST ratio	0.444	2.439	1.559	0.087 to 0.8	0.015
NT-proBNP	0	2.094	1	0, 0	0.036
Left atrial diameter	0.076	5.959	1.079	0.051 to 0.8	<0.001
LVEF	−0.022	−2.289	0.979	−0.04 to −0.003	0.022

ALT, alanine transaminase; AST, aspartate transaminase; LVEF, left ventricular ejection fraction; NT-proBNP, N-terminal pro-B-type natriuretic peptide.