Risk factors for nonrelapse mortality. Higher doses of prednisone (B), platelet count less than 100 000/μL (C), or serum total bilirubin concentration more than 2.0 mg/dL (D) at the time of diagnosis are associated with an increased risk of nonrelapse mortality among patients with chronic GVHD. Panel A shows the cumulative incidence of nonrelapse mortality among all patients. Panel B shows results for patients with prednisone doses less than 0.5 mg/kg body weight (——), 0.5 to 1.0 mg/kg (— —), or more than 1.0 mg/kg (-–-). Other panels show results for patients with (– – –) or without (—) the indicated risk factor.