Inpatient study 5495 Adult Stills Dz (AOSD) hospitalizations (2016–2019). Pts w/ HLH (6.2%) had higher mortality (9% vs 1.5%). Deatjs Independent predictors: DIC (OR 6.1), liver failure (7.2), Infx (3.7), resp failure (6.9),thrombotic microangiopathy (14) https://t.co/BQsbVnw2Ir https://t.co/mbn9JuN7ow