Figure 1

Histogram of MG patients by prednisolone dose. Values on the x-axis represent MGFA Class at the initial diagnosis of MG. Values on the y-axis indicate the dose of preoperative PSL administered on alternate days. The corresponding numbers of patients are represented by values on the z-axis. Black bars indicate patients who were included in the ph-PSL group. Gray bars signify those included in the control group, and white bars indicate patients excluded from the study due to low-dose prednisolone treatment.