Fig. 2

ROC curves for WBC counts, PCT levels, and CRP levels on POD 3 for predicting CRPF occurrence after LPD. The AUCs of the ROC plots for WBC, PCT levels, and CRP levels were 0.762, 0.951, and 0.629, respectively. PCT = 2.10 ng/mL had a sensitivity of 88.2% and specificity of 92.9%; CRP = 201.4 mg/L had a sensitivity of 64.7% and specificity of 64.3%; WBC = 14.7 × 10⁹/L had a sensitivity of 70.6% and specificity of 72.6%. There were significant differences between the ROC analyses (P < 0.05, Delong’s test). ROC receiver operating characteristic, CRP C-reactive protein, WBC white blood count, PCT procalcitonin, POD post-operative day, LPD laparoscopic pancreaticoduodenectomy