Statistical results of the new SOT reports using HF fluctuation F_hf.

“y” denotes statistically significant difference when compared with the HY group. “d” denotes statistically significant difference when compared with the DZ group. “e” denotes statistically significant difference when compared with the HE group. Single character denotes with P-value<0.05; double character denotes P-value<0.01. Values shown in mean ± standard deviation. The statistical results of Kruskal-Wallis test are shown in K value (P value).