GSTM1 and anemia (phenotype): Multivariate analysis showed that sRDW >0.95 was independently associated to patients with anemia (Hb < 10.5) (RR 5.9; CI95%: 2–16.9; p = 0.001), B-symptoms (RR 2.5; CI95%: 1.3–4.9; p = 0.007) and low albumin level (RR 2.2; CI95%: 1.1–4.4; p = 0.019) (Table 2).