Donor characteristics according to age
| Characteristic . | Total no. (%) . | Age of donor . | P* . | ||
|---|---|---|---|---|---|
| 18-30 years, no. (%) . | 31-45 years, no. (%) . | >46 years, no (%) . | |||
| No. (%) of donors | 6978 (100) | 1923 (28) | 3924 (56) | 1131 (16) | |
| CMV seropositive† | 2552 (38) | 557 (30) | 1488 (40) | 507 (47) | <.0001 |
| Sex | |||||
| Male | 4033 (58) | 1048 (54) | 2318 (59) | 667 (59) | <.0001 |
| Female (no pregnancies) | 1140 (16) | 591 (31) | 457 (12) | 92 (8) | |
| Female (1 pregnancy) | 416 (6) | 145 (8) | 217 (6) | 54 (5) | |
| Female (≥2 pregnancies) | 1358 (19) | 133 (7) | 913 (23) | 312 (28) | |
| Female (parity unknown) | 31 (<1) | 6 (<1) | 19 (<1) | 6 (<1) | |
| Race or ethnic group | |||||
| African American | 260 (4) | 83 (4) | 140 (4) | 37 (3) | <.0001 |
| Asian/Pacific Islander | 180 (3) | 80 (4) | 78 (2) | 22 (2) | |
| White | 5349 (77) | 1365 (71) | 3056 (78) | 928 (82) | |
| Hispanic | 358 (5) | 124 (6) | 190 (5) | 44 (4) | |
| Native American | 74 (1) | 30 (2) | 35 (1) | 9 (1) | |
| Other | 56 (1) | 18 (1) | 31 (1) | 7 (1) | |
| Unknown | 701 (10) | 223 (12) | 394 (10) | 84 (7) | |
| Match status | |||||
| ABO match | 2860 (41) | 762 (40) | 1656 (42) | 442 (39) | .56 |
| Minor ABO mismatch‡ | 1802 (26) | 486 (25) | 1014 (26) | 302 (27) | |
| Bidirectional ABO mismatch2-153 | 587 (8) | 163 (8) | 328 (8) | 96 (8) | |
| Other ABO mismatch | 1670 (24) | 489 (25) | 893 (23) | 288 (25) | |
| ABO unknown | 59 (1) | 23 (1) | 33 (1) | 3 (<1) | |
| Characteristic . | Total no. (%) . | Age of donor . | P* . | ||
|---|---|---|---|---|---|
| 18-30 years, no. (%) . | 31-45 years, no. (%) . | >46 years, no (%) . | |||
| No. (%) of donors | 6978 (100) | 1923 (28) | 3924 (56) | 1131 (16) | |
| CMV seropositive† | 2552 (38) | 557 (30) | 1488 (40) | 507 (47) | <.0001 |
| Sex | |||||
| Male | 4033 (58) | 1048 (54) | 2318 (59) | 667 (59) | <.0001 |
| Female (no pregnancies) | 1140 (16) | 591 (31) | 457 (12) | 92 (8) | |
| Female (1 pregnancy) | 416 (6) | 145 (8) | 217 (6) | 54 (5) | |
| Female (≥2 pregnancies) | 1358 (19) | 133 (7) | 913 (23) | 312 (28) | |
| Female (parity unknown) | 31 (<1) | 6 (<1) | 19 (<1) | 6 (<1) | |
| Race or ethnic group | |||||
| African American | 260 (4) | 83 (4) | 140 (4) | 37 (3) | <.0001 |
| Asian/Pacific Islander | 180 (3) | 80 (4) | 78 (2) | 22 (2) | |
| White | 5349 (77) | 1365 (71) | 3056 (78) | 928 (82) | |
| Hispanic | 358 (5) | 124 (6) | 190 (5) | 44 (4) | |
| Native American | 74 (1) | 30 (2) | 35 (1) | 9 (1) | |
| Other | 56 (1) | 18 (1) | 31 (1) | 7 (1) | |
| Unknown | 701 (10) | 223 (12) | 394 (10) | 84 (7) | |
| Match status | |||||
| ABO match | 2860 (41) | 762 (40) | 1656 (42) | 442 (39) | .56 |
| Minor ABO mismatch‡ | 1802 (26) | 486 (25) | 1014 (26) | 302 (27) | |
| Bidirectional ABO mismatch2-153 | 587 (8) | 163 (8) | 328 (8) | 96 (8) | |
| Other ABO mismatch | 1670 (24) | 489 (25) | 893 (23) | 288 (25) | |
| ABO unknown | 59 (1) | 23 (1) | 33 (1) | 3 (<1) | |
Determined by the Wilcoxon rank sum test.
The donor's CMV serologic status was not available for 339 cases.
Marrow from a donor with type O blood was transplanted into a recipient with non–type O blood or marrow from a type A or B donor was transplanted into an AB recipient.
Marrow from a type A donor was transplanted into a type B recipient or vice versa.