Metanalysis of ANCA-associated vasculitis with interstitial lung disease (8 studies, 654 pts shows the following significan mortality risk factors: age (HR 1.06), ever smoker (HR 1.61), UIP pattern (HR 2.07), acute exacerbation (HR 2.73) & microscopic polyangiitis (HR 4.03). https://t.co/Rf6c2gidpK