Table 3.

Multiple regression analyses of factors associated with acute kidney injury in elderly adults with Barthel Index score as the dependent variable

Results	t value	β coefficient	p value
Model 1
Presence of AKI	−2.06	−0.15	0.04
Model 2
AKI KDIGO stage	−2.71	−0.20	<0.01

Model 1 included variables from demographic data, comorbidities, and physical examination parameters with the presence or absence of AKI at admission. Model 2 included all the same parameters but with AKI severity (KDIGO stage) at admission

Abbreviations: AKI acute kidney injury, KDIGO kidney disease initiative global outcome