Table 4.

Multivariate COX regression analysis

Items	β	SE	Wald χ2	P	HR	95% CI
Age	0.142	0.061	5.447	0.020	1.153	1.023	1.299
Diabetes	0.413	0.102	16.429	<0.001	1.512	1.238	1.847
LVEF	1.107	0.312	12.579	<0.001	3.024	1.641	5.574
bFGF	1.485	0.41	13.123	<0.001	4.416	1.977	9.863

Note: SE, standard error; β, coefficient of regression; Wald χ², The Wald value; HR, Ratio of risk function values; 95 CI%, 95% confidence interval; bFGF, basic fibroblast growth factor; LVEF, left ventricular ejection fraction.