The expression level of miR-13 was significantly correlated with HGB level, NPM1 mutant type, and complete remission (P < 0.05), but not with sex, age, lactate dehydrogenase level, WBC, PLT, proportion of bone marrow primordial cells, hepatomegaly, splenomegaly, lymphadenomegaly, and FLT3-ITD (P > 0.05). This evidence concerns the gene FLT3 and Splenomegaly.