{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","spread":"14.9","value":"92.6"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"212"}],"units":"Participants"}],"description":"Chimerism studies will be performed on the bone marrow on days 21 and 100 and at 6 months, 1 year and 2 years. In cases of slow engraftment a bone marrow biopsy may be repeated on day +28.","dispersionType":"Standard Deviation","groups":[{"description":"Patients undergoing unrelated umbilical cord blood transplantation (UCBT) for hematologic malignancies treated with myeloablative preparative regimen comprising fludarabine phosphate, mycophenolate mofetil, filgrastim, cyclophosphamide, cyclosporine and fractionated total-body irradiation.","id":"OG000","title":"Unrelated UCBT for Blood Cancers"}],"paramType":"MEAN","reportingStatus":"POSTED","timeFrame":"Day 21","title":"Percentage Chimerism on Day 21","type":"SECONDARY","unitOfMeasure":"percentage of donor cells"}