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Adjusted hazards of 1-y patient death in each DRI category in ACLF (ref: 0 < DRI ≦ 1.2). A, Overall (2002–2019). B, Era 1 (2002–2007). C, Era 2 (2008–2013). D, Era 3 (2014–2019). ACLF, acute-on-chronic liver failure; aHR, adjusted hazard ratio; DRI, donor risk index.
