Table 4. Univariate and Multivariate Logistic Regression Analyses for Non-Recovery from AKI.

Variables	Unadjusted			Adjusted
	OR	95% CI	p value	OR	95% CI	p value
Age at diagnosis, yr	1.007	0.967–1.048	0.748	0.984	0.927–1.044	0.593
Sex, male	1.413	0.447–4.473	0.556	1.309	0.223–7.695	0.766
Body mass index, kg/m2	1.062	0.932–1.209	0.367
CCI	1.291	1.013–1.645	0.039	1.274	0.932–1.742	0.129
SOFA	1.229	1.017–1.485	0.033	1.187	0.902–1.563	0.222
APACHE II	1.015	0.951–1.083	0.660
Lactate ≥2.0 mmol/L	4.000	1.143–13.995	0.030	3.076	0.633–14.947	0.164
Procalcitonin, ng/mL	1.004	0.988–1.020	0.651
Hydroxyproline	1.050	0.988–1.115	0.115
Serine	0.987	0.973–1.001	0.065	0.979	0.957–1.002	0.071
Kynurenine ≥4.7 umol/L	4.333	1.298–14.471	0.017	4.829	0.823–28.351	0.081

AKI, acute kidney injury; CCI, Charlson Comorbidity Index; SOFA, Sequential Organ Failure Assessment; APACHE II, Acute Physiology And Chronic Health Evaluation II; OR, odds ratio; CI, confidence interval.