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Receiver operating characteristic (ROC) curve analysis for the occurrence of hyperuricemia. (A) ROC analysis based on steady-state serum FVP levels: cut-off, 46.14 μg/mL; sensitivity, 0.71; specificity, 0.69; AUC, 0.76 (95% CI 0.64–0.88). (B) ROC analysis based on baseline serum UA levels: cut-off, 3.70 mg/dL; sensitivity, 0.88; specificity, 0.54; AUC, 0.72 (95% CI 0.59–0.85). AUC, area under the curve; CI, confidence interval; FVP, favipiravir; UA, uric acid
