AML patients were grouped according to scoring system based on SF mutation and 10 other prognostic markers (CEBPAdouble-mutation, NPM1/FLT3-ITD, IDH2, TP53, WT1, RUNX1 and DNMT3A mutations, cytogenetics, age and WBC counts at diagnosis). A score of -3 was assigned for NPM1+/FLT3-ITD− and -2 for CEBPAdouble-mutation and IDH2 mutation whereas a score of +3 for TP53 mutation and +2 for other factors associated with an adverse outcome (SF, DNMT3A, WT1 and RUNX1 mutations, older age, higher WBC counts at diagnosis and unfavorable cytogenetics). The algebraic summation of these scores of each patient was the final score. This score system divided the AML patients into five groups with different clinical outcomes (P < 0.001 for both OS and DFS). The 12 patients without chromosome data were not included in the analysis.