In CLL, there was no correlation between miR-124-1 methylation and age (p = 0.79), gender (p = 0.99), diagnostic lymphocyte count (p = 0.89); Hb (p = 0.98), platelet count (p = 0.42), advanced Rai stage (≥stage 2) (p = 0.69) and death (p = 0.41). The gene discussed is GSTM1; the disease is B-cell chronic lymphocytic leukemia.