TET2 and acute myeloid leukemia: We also investigated the correlation of TET2 mutation with OS and EFS of patients under 65 years of age, and that mutant TET2 was linked to unfavorable OS and EFS in this kind of patients cohort with AML (HR for OS: 1.310, P = 0.051; EFS:1.429, P = 0.027) and CN-AML (HR for OS: 1.999, P = 0.001; EFS: 1.741, P = 0.005).