Table 2.

Regression analysis showed PEI is an independent predictor of mortality.

Independent variables	Coefficient	Std. error	T	p-value
(Constant)	0.08305
Age	0.0003351	0.003652	0.0918	0.9276
Sex	0.07455	0.08805	0.847	0.4049
Cardiac	−0.2630	0.1673	−1.572	0.1281
Cancer	1.0788	0.1871	5.765	<0.0001
RVD	0.3247	0.1416	2.294	0.0301
PE index	0.32987	0.13702	2.307	0.0312