Cumulative incidence and adjusted HRs of relapse in AIHA patients according to the clinical severity at onset. Crude data (A) and data adjusted for gender and age with the Fine and Gray model (B). Patients were divided according to Hb levels at onset: >10 g/dL (solid line), 8.1-10 g/dL (dashed line), 6.1-8 g/dL (dotted line), and ≤6 g/dL (dashed-dotted line). SHR, subdistribution HR.