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. 2021 Jul 7;36(5):1093–1096. doi: 10.1007/s12250-021-00425-4

Fig. 1.

Fig. 1

Evaluation of IL-6 changes in 184 patients with confirmed COVID-19. A Dynamic changes in IL-6 concentration of 62 moderate patients after admission. One deceased patient with a remarkable increase in IL-6 concentrations was highlighted in red. B Dynamic changes in IL-6 concentration of 111 severe patients after admission. One cured case with IL-6 increased first and then decreased was highlighted in red. C Dynamic changes in IL-6 concentration of 11 critically ill patients after admission. Three cured patients with slight change in IL-6 were highlighted in blue, green and red respectively. D Dynamic changes in IL-6 concentration of 11 deceased patients. E IL-6 levels in cured and deceased patient. F ROC curve of IL-6 for predicting COVID-19 mortality.