Furthermore, moCD38 demonstrated the highest AUC of 0.91 (95% CI: 0.86–0.96) for distinguishing the Sepsis group from the Surgery group, outperforming C‐reactive protein (CRP) concentrations, procalcitonin (PCT) concentrations, APACHE II scores, and white blood cell (WBC) counts (Figure3A,B). Here, CRP is linked to Sepsis.