This retrospective study analyzed risk factors predicting treatment failure and survival in patients with Hodgkin's lymphoma following autologous stem cell transplantation. Analyzed factors: absolute lymphocyte counts prior to stem cell collection, day+15 and day +90 following transplantation, age at transplantation, clinical stage at relapse, progression/early and late relapse, response to salvage chemotherapy, positivity of positron emission tomography prior to transplantation, number of infused CD34+ cells, recovery of neutrophile leucocytes and occurence of serious infections within 6 months following transplantation.