Estimated probability of overall survival for 39 patients with AMKL diagnosed and treated at St Jude Children's Research Hospital.

The method of Kaplan and Meier was used to derive the curves;P values were derived by log-rank analysis. Estimated 2-year survival was 83% (95% CI = 43%-100%) for patients with DS-AMKL, 20% (95% CI = 0%-46%) for patients with secondary AMKL, and 14% (95% CI = 0%-28%) for patients with de novo AMKL (P = .08). DS-AMKL indicates Down syndrome–associated AMKL.