Research Article

Hyperferritinemia as a Diagnostic Marker for Severe Fever with Thrombocytopenia Syndrome

Figure 1

(a) ROC curves of laboratory markers as predictors of SFTS in 73 patients with SFTS or community-onset bacteremia with thrombocytopenia. AUC: CRP 0.991 (95% CI, 0.975–1.000); WBC 0.963 (95% CI, 0.918–1.000); AST 0.857 (95% CI, 0.764–0.950); LDH 0.777 (95% CI, 0.653–0.901); ALT 0.246 (95% CI 0.126–0.367) (all ). (b) ROC curve of serum ferritin as a predictor of SFTS. (SFTS 10, bacteremia 62). AUC 1.000 (95% CI, 1.000-1.000) (). (c) ROC curve of serum procalcitonin as a predictor for SFTS. (SFTS 11, bacteremia 37). AUC 0.931 (95% CI, 0.855–1.000) (). (d) ROC curve of serum fibrinogen as a predictor for SFTS. (SFTS 11, bacteremia 52). AUC 0.934 (95% CI, 0.873–0.994) (). ROC, receiver operating characteristic; SFTS, severe fever with thrombocytopenia syndrome; WBC, white blood cell count; AST, aspartate aminotransferase; LDH, lactate dehydrogenase; ALT, alanine aminotransferase; CRP, C-reactive protein.
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