Patients with infection had a significantly higher frequency of fever (77.8% vs. 51.5%, p = 0.011) and IL-6 levels (1450 ± 791 vs. 674 ± 149 pg/mL, p = 0.007) at admission than those without infection, but significantly lower serum creatinine levels (0.9 ± 0.5 vs. 1.5 ± 1.1, p = 0.031). Here, IL6 is linked to infection.