Using the median as the cutpoint for the Ki-67 LI, univariate analysis indicated this proliferation marker is significantly associated with DMFS (HR = 2.4, (95% CI 1.12 to 5.11, p = 0.02) and overall survival (HR = 1.71, (95% CI 1.00 to 2.93, p = 0.05) but is no longer significant after adjustment for MS in a multivariate analysis. Here, MKI67 is linked to myeloid sarcoma.