Fig. 2.
ROC curves for VAS, IL-6, frequency and duration of attacks to classify patients with COVID-19 headache. (AUROCVAS = 0.980; p < 0.001, AUROCIL-6 = 0.867; p < 0.001, AUROCFr = 0.940; p < 0.001, AUROCD = 0.948; **p < 0.001)
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