Inferior outcome for EVI1⁺ME⁻ patients in comparison with EVI1⁺ME⁺patients. Kaplan Meier analysis of (A) overall survival (OS) and (B) event-free survival (EFS) shows an inferior outcome for EVI1⁺ME⁻ patients in comparison with EVI1⁺ME⁺ patients in the cohort of 41 EVI1⁺ AML patients.