ALB and acute kidney injury: As shown in Table 4 and Figure 2, the predictive accuracy (0.864 vs. 0.807), specificity (83.2 vs. 69.2), and sensitivity (79.7 vs. 76.6) of PCT/Alb were all higher than the simple PCT, indicating that PCT/Alb might be a robust risk assessment marker for the poor prognosis of patients with sepsis-induced AKI.