CRP and infection: Compared with the noninfection group, patients with infections showed higher levels of WBC (7.30 ± 3.92 vs 6.61 ± 3.24 × 109/L; P = .029) and C-reactive protein (20.30 ± 18.81 vs 12.98 ± 11.16 mg/L; P = .001), and the other parameters had no significance (ferritin: 2680.50 ± 4161.74 vs 2242.63 ± 1609.55 μg/L; P = .354; interleukin-6: 53.06 ± 86.30 vs 33.63 ± 81.50 pg/mL; P = .386).