The correlation between RDW and Hb was further explored in sequential hemograms from individual FA patients with different clinical outcomes, not subjected to transfusions or bone marrow transplant: a clinically stable adult patient (P33); a young patient with a previous progression to BMF that reverted to a stable condition (P11); a patient with severe BMF since childhood who initiated androgen treatment (P9) while is waiting for a compatible bone marrow donor. This evidence concerns the gene GSTM1 and Friedreich ataxia.