CXCL8 and infection: In the infection group, there was no link between PCT levels and IL-6, IL-8, IL-12, or SOFA scores [r = 0.144, P = 0.200 (Figure 5I); r = −0.073, P = 0.516 (Figure 5J); r = 0.004, P = 0.969 (Figure 5K); r = 0.034, P = 0.761 (Figure 5L)], although there was a positive correlation between PCT levels and WBC and CRP [r = 0.264, P = 0.017 (Figure 5G); r = 0.255, P = 0.022 (Figure 5H)].