Table 5.

Multivariate analysis of risk factors of in-hospital mortality for patients with AKI.

Variables	β	Odds ratio	95% confidence interval		P-value
			Lower	Upper
AKI stage	1.201	3.322	1.816	6.077	0.000
DHCA	0.950	2.586	1.131	5.916	0.024
Lactic acidosis	1.226	3.407	1.480	7.839	0.004
CRRT	1.149	3.156	1.278	7.795	0.013

The odds ratio and 95% confidence interval were measured through binary logistic regression.

AKI, acute kidney injury; DHCA, deep hypothermic circulatory arrest; CRRT, continuous renal replacement therapy.