Table 2.

Correlations between variables in the entire sample.

		Age, Years	Creatinine, mg/dL	eGFR, mL/min/1.73 m2	Hemoglobin, g/dL	Potassium, mEq/L	Sum of Hospitalization Days
Age, years	Rho
	p
Creatinine, mg/dL	Rho	0.088
	p	0.151
eGFR, mL/min/1.73 m2	Rho	−0.199	−0.977
	p	0.001	0.000
Hemoglobin, g/dL	Rho	−0.261	−0.360	0.390
	p	0.000	0.000	0.000
Potassium, mEq/L	Rho	0.072	0.290	−0.286	−0.147
	p	0.239	0.000	0.000	0.017
Sum of hospitalization days	Rho	0.211	0.317	−0.337	−0.272	0.175
	p	0.001	0.000	0.000	0.000	0.004

eGFR, estimated glomerular filtration rate.