Fig. 1

Serum levels of FGF21 are positively correlated with the \(\Delta\)GCS%. A There was statistically significant upon serum levels of FGF21 between \(\Delta\)GCS% < 0 group and \(\Delta\)GCS% > 0 group. B ROC curve analysis was employed to assess the ability of serum FGF21 levels to discriminate patients’ \(\Delta\)GCS% (Area under the curve: 0.839). (C) A positive correlation was found between the serum levels of FGF21 and the \(\Delta\)GCS% (r = 0.872, ^***P < 0.001). ^**P < 0.01 by student’s t test (A). Values are presented as mean \(\pm\) SD