Kaplan-Meier curves for EFS for 372 patients for whom cytogenetic data were available. (A) Patients diagnosed in 1989 to 1999 vs 2000 to 2009; (B) patients with vs without normal karyotype; (C) patients with vs without –7; (D) patients with vs without abnormalities of 7p; (E) patients with vs without t(9;11); (F) patients with vs without –13; (G) patients with vs without 13q–; and (H) patients with vs without –15. P values are derived from multivariable Cox regression analysis.