Statistical Analysis
PCT
All data were analyzed by SPSS 22.0 software (IBM, Inc.) and were expressed as mean and standard deviation (SD) or numbers with proportions. The baseline demographic was compared between the tDCS and conventional treatment groups using the Mann–Whitney U test or Chi-square test. Then, SSA, PAS, WBC, PCT, CRP, PAB, and Hb between the two groups before and after treatment were compared by an independent sample t-test and paired t-test within each group or Mann–Whitney U test. If the data conformed to a normal distribution, the t-test was used, and if not, the Mann–Whitney U test was used. 