- P values were determined by Pearson’s chi-squared test or Fisher’s exact test or Mann-Whitney U test for univariate analysis
- GC glucocorticoid, ANCA anti-neutrophil cytoplasmic antibody, RF rheumatoid factor, FFS Five factor score, BVAS Birmingham Vasculitis Activity Score. P < 0.05: GC-free (n = 13) vs. GC-continue (n = 14)