HMGA2 and acute myeloid leukemia: Univariate Cox regression analysis was performed using the 21 differentially expressed lncRNAs in the training set and 13 lncRNAs (AC018552.3, AC026904.1, AC093278.2, AC133961.1, AL137186.1, AP000790.1, AP003064.2, HMGA2-AS1, LINC00987, LINC01679, LINC02757, SOCS2-AS1, Z98257.1) were found to be significantly associated with OS and an increased risk for AML (all adjusted p-value < 0.05 and HR > 1) (Table 1 and Figure 3A).