Disease-free and overall survival in young patients. (A) DFS and OS in young patients (≤ 60 years) according to Id1 expression. (B) DFS and OS in young patients with normal cytogenetics according to Id1 expression. (C) DFS and OS in young patients with both normal cytogenetics and NPM1⁻/FLT3/ITD⁻. (D) DFS and OS in young patients with both normal cytogenetics and NPM1⁺/FLT3/ITD⁻.