Fig. 2.

Effect of early IVIG on hip flexor strength

(A) All subjects. At baseline, hip flexor strength was significantly lower in the early IVIG group compared with the no early IVIG group. At 3 and 6 months follow-up, this difference was no longer observed. (B) Subgroup analysis of subjects with moderate–severe disease at baseline. At baseline, there was no difference in hip flexor strength between the groups. At 6 months, the group that received early IVIG had significantly better hip flexor strength compared with the no early IVIG group. y-axis: Grading of hip flexor strength. Grade 0 correspond to MRC grades 0–2, grade 1 corresponds to MRC grade 3, grade 2 corresponds to MRC grade 4 and grade 3 correspond to MRC grade 5.