Table 2.

Correlates of the Prognostic Nutritional Index by Univariate and Multivariate Linear Regression Analyses

	Univariate Analysis		Multivariate Analysisa
	β Coefficient	P Value	β Coefficient	P Value
Age, y	−0.149	<0.001	0.039	0.517
BMI, kg/m2	0.196	<0.001	0.173	0.002
Systolic blood pressure, mm Hg	−0.059	0.042	−0.149	0.011
White blood cell count, 109/L	0.072	0.003
Hemoglobin, g/dL	0.397	<0.001	0.372	<0.001
Platelet count, 109/L	0.119	<0.001
Blood urea nitrogen, mg/dL	−0.202	<0.001
eGFR, mL/min per 1.73 m2	0.137	<0.001
Sodium, mmol/L	0.097	<0.001
Potassium, mmol/L	0.078	0.002
Cholesterol, mg/dL	0.208	<0.001	0.195	0.001
E/e′	−0.115	0.003
LVEF, %	−0.043	0.079
RVSP, mm Hg	−0.164	<0.001	−0.142	0.012

BMI indicates body mass index; E/e′, ratio of transmitral flow velocity to mitral annulus motion velocity in early diastole; eGFR, estimated glomerular filtration rate; LVEF, left ventricular ejection fraction; RVSP, right ventricular systolic pressure.

^aThe multivariate regression model was calculated by multiple linear regression stepwise analysis (included all variables with P<0.1), and with fixed adjusted for age and sex.