Table 4.

Last step of multivariate regression analysis back-step model including covariates significantly associated with development of AKI in univariate analyses

	Odds ratio (95% CI)	P -value
SOFA (on admission)	1.073 (0.996, 1.156)	0.064
Chronic kidney failure	2.475 (1.195, 5.124)	0.015
Adherence to SOP (LAG versus HAG)	2.146 (1.038, 4.437)	0.039

Significant covariates were included in multivariate regression analysis (Hosmer-Lemeshow-test, χ2 = 8.236; P = 0.411). SOFA, sequential organ failure assessment; SOP, standard operating procedure.