![]() ![]() In case of a rare disease, the EBMT Registry allows patients to be pooled from many centres in order to achieve an evaluable study population.Retrospective studies are relatively inexpensive and faster to conduct than other studies.Those studies are extremely helpful to assess the feasibility of prospective studies and to help in their design.Retrospective studies help define prognostic factors to be used so that the therapeutic strategy may vary depending on the predicted risks.In some instances, when clinical trials are not possible, it may be the case that only retrospective studies are available to compare different treatments.Given the significant number of centres contributing to the EBMT registry, retrospective studies conducted with the data collected by the EBMT can have an important impact on epidemiological surveillance, evaluation of the disease, and impact of the treatment on survival and disease progression.Retrospective studies are important for several reasons: In a retrospective study, different patient populations can be compared for one or several outcomes. ![]() Unlike the prospective studies, a retrospective study usually does not need to follow patients into the future and often requires less time to conduct than a prospective study. In most cases some or most of the data has already been gathered and stored in the registry. Haemoglobinopathies Working Party (HWP)Ī retrospective study is performed a posteriori, using information on events that have taken place in the past.Transplant Complications Working Party (TCWP).Paediatric Diseases Working Party (PDWP).Infectious Diseases Working Party (IDWP).Chronic Malignancies Working Party (CMWP).Cellular Therapy & Immunobiology Working Party (CTIWP).Autoimmune Diseases Working Party (ADWP).Severe Aplastic Anaemia Working Party (SAAWP).Cellular Therapy Data Collection in Castor. ![]()
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