MDS flow-scores in relation to clinical parameters. (A) Flow-scores in relation to transfusion dependency (non/low versus dependent) or disease progression toward at least RAEB-1 (Spearman r = .448; P = .002); patients with RAEB-2 were excluded. (B) Patients are subdivided by WPSS. Spearman r = .513; P < .001. Horizontal bars are medians.