showed a trendP = 0.057
When the association between DPB1 and GPA/PR3-AAV was examined, DPB1*04 : 01 (the risk allele for GPA in European populations) also showed a trend for association with predisposition to PR3-AAV in the Japanese population (P = 0.057, OR = 1.89, 95%CI: 1.03–3.45) ( Table 4 ).