Characteristics of the study cohort (N = 2169)
| Characteristic . | n (%) . | 
|---|---|
| Number genotyped | |
| Recipients genotyped | 1930 (89) | 
| Donors genotyped | 2025 (93) | 
| Patient age at transplantation in years | |
| Median | 46 | 
| Range | 0-75 | 
| Diagnosis | |
| Acute leukemia | 907 (42) | 
| Chronic myeloid leukemia | 487 (22) | 
| Myelodysplastic syndromes or myeloproliferative neoplasms | 383 (18) | 
| Chronic lymphocytic leukemia | 72 (3) | 
| Malignant lymphoma or multiple myeloma | 320 (15) | 
| Disease risk* | |
| Low | 445 (21) | 
| Intermediate | 596 (27) | 
| High | 1005 (46) | 
| Not classified | 123 (6) | 
| Donor-recipient gender combination | |
| Male to male | 659 (30) | 
| Male to female | 538 (25) | 
| Female to male | 476 (22) | 
| Female to female | 494 (23) | 
| Donor CMV serostatus | |
| Negative | 1168 (54) | 
| Positive | 1000 (46) | 
| Donor type | |
| Related, HLA-A, B, C, DRB1, DQB1-matched | 956 (44) | 
| Related, HLA-A, B, C, DRB1, DQB1-mismatched | 63 (3) | 
| Unrelated, HLA-A, B, C, DRB1, DQB1-matched | 746 (34) | 
| Unrelated, HLA-A, B, C, DRB1, DQB1-mismatched | 404 (19) | 
| Graft source | |
| Bone marrow | 1135 (52) | 
| Mobilized blood cells | 1034 (48) | 
| Conditioning regimen | |
| Myeloablative with <900 cGy total body irradiation | 788 (36) | 
| Myeloablative with ≥900 cGy total body irradiation | 966 (45) | 
| Nonmyeloablative | 415 (19) | 
| Posttransplant immunosuppression | |
| Cyclosporine and methotrexate | 1141 (53) | 
| Cyclosporine and mycophenolate mofetil | 378 (17) | 
| Tacrolimus and methotrexate | 318 (15) | 
| Other | 332 (15) | 
| Characteristic . | n (%) . | 
|---|---|
| Number genotyped | |
| Recipients genotyped | 1930 (89) | 
| Donors genotyped | 2025 (93) | 
| Patient age at transplantation in years | |
| Median | 46 | 
| Range | 0-75 | 
| Diagnosis | |
| Acute leukemia | 907 (42) | 
| Chronic myeloid leukemia | 487 (22) | 
| Myelodysplastic syndromes or myeloproliferative neoplasms | 383 (18) | 
| Chronic lymphocytic leukemia | 72 (3) | 
| Malignant lymphoma or multiple myeloma | 320 (15) | 
| Disease risk* | |
| Low | 445 (21) | 
| Intermediate | 596 (27) | 
| High | 1005 (46) | 
| Not classified | 123 (6) | 
| Donor-recipient gender combination | |
| Male to male | 659 (30) | 
| Male to female | 538 (25) | 
| Female to male | 476 (22) | 
| Female to female | 494 (23) | 
| Donor CMV serostatus | |
| Negative | 1168 (54) | 
| Positive | 1000 (46) | 
| Donor type | |
| Related, HLA-A, B, C, DRB1, DQB1-matched | 956 (44) | 
| Related, HLA-A, B, C, DRB1, DQB1-mismatched | 63 (3) | 
| Unrelated, HLA-A, B, C, DRB1, DQB1-matched | 746 (34) | 
| Unrelated, HLA-A, B, C, DRB1, DQB1-mismatched | 404 (19) | 
| Graft source | |
| Bone marrow | 1135 (52) | 
| Mobilized blood cells | 1034 (48) | 
| Conditioning regimen | |
| Myeloablative with <900 cGy total body irradiation | 788 (36) | 
| Myeloablative with ≥900 cGy total body irradiation | 966 (45) | 
| Nonmyeloablative | 415 (19) | 
| Posttransplant immunosuppression | |
| Cyclosporine and methotrexate | 1141 (53) | 
| Cyclosporine and mycophenolate mofetil | 378 (17) | 
| Tacrolimus and methotrexate | 318 (15) | 
| Other | 332 (15) | 
Low risk includes chronic myeloid leukemia in chronic phase or myelodysplastic syndrome-refractory anemia; intermediate risk includes acute leukemia, chronic lymphocytic leukemia, or non-Hodgkin lymphoma in remission; high risk includes all others.