LAUSR

Since decades, debates on the role and timing of allogeneic transplantation HSCT in acute myelogenous leukemia (AML) persist. Time to transplant introduces an immortal time and current treatment algorithm mainly relies on the ELN's disease risk classification. Previous studies are also limited to age groups, remission status and other ill-defined parameters. We studied all patients at diagnosis irrespective of age and comorbidities to estimate the cumulative incidence and potential benefit or disadvantage of HSCT in a single center. As a time-dependent covariate, HSCT improved overall survival in intermediate and poor risk patients (hazard ratio 0.51; p=0.004). In good risk patients only 8 were transplanted in first complete remission. Overall, the 4-year cumulative incidence of HSCT was only 21.9% but was higher (52.1%) for patients in the first age quartile (16-57) and 26.4% in older patients (57-70); p.