Cluster analysis of 649 #GPA patients (age 60 yrs) finds 3 clusters: 1)Limited dz w/ ENT + cough(n=426) - many evovle to gen dz @ yr 1 2) Generalised non-renal Dz (176) ) 3) Renal dominant Dz(47) Mortality in #1, signif lower than mortality in #2 & #3 https://t.co/XgZVt9b73n