Survival comparison between CML with 3q26.2 abnormalities and CML with ACAs involving chromosomes other than 3. (A) Date of ACA emergence (ACAs, 3q26.2, red; ACAs, not Chr 3, black) was used as the starting point to calculate OS. (B) Date of initial CML diagnosis was used as the starting point to calculate OS. CML without any ACAs was also included in B for survival comparison.