Cytogenetic results
. | Younger than 56 y . | 56-65 y . | 66-75 y . | Older than 75 y . | P* . |
|---|---|---|---|---|---|
| No. patients | 323 | 183 | 199 | 54 | |
| Cytogenetic risk group, no. (%) | < .001† | ||||
| Favorable | 51 (16) | 10 (5) | 10 (5) | 2 (4) | |
| Intermediate | 149 (46) | 101 (55) | 110 (55) | 24 (44) | |
| Unfavorable | 108 (33) | 70 (38) | 78 (39) | 27 (50) | |
| Unknown | 15 (5) | 2 (1) | 1 (1) | 1 (2) | |
| Specific abnormalities, no. (%) | |||||
| -5 or 5q- | 21 (7) | 27 (15) | 28 (14) | 14 (26) | < .001 |
| -7 or 7q- | 28 (9) | 35 (19) | 36 (18) | 12 (22) | < .001 |
| 17p | 6 (2) | 16 (9) | 14 (7) | 6 (11) | .001 |
| t(8;21) | 22 (7) | 7 (4) | 4 (2) | 0 (0) | .019 |
| inv(16) | 31 (10) | 4 (2) | 7 (4) | 4 (7) | .002 |
. | Younger than 56 y . | 56-65 y . | 66-75 y . | Older than 75 y . | P* . |
|---|---|---|---|---|---|
| No. patients | 323 | 183 | 199 | 54 | |
| Cytogenetic risk group, no. (%) | < .001† | ||||
| Favorable | 51 (16) | 10 (5) | 10 (5) | 2 (4) | |
| Intermediate | 149 (46) | 101 (55) | 110 (55) | 24 (44) | |
| Unfavorable | 108 (33) | 70 (38) | 78 (39) | 27 (50) | |
| Unknown | 15 (5) | 2 (1) | 1 (1) | 1 (2) | |
| Specific abnormalities, no. (%) | |||||
| -5 or 5q- | 21 (7) | 27 (15) | 28 (14) | 14 (26) | < .001 |
| -7 or 7q- | 28 (9) | 35 (19) | 36 (18) | 12 (22) | < .001 |
| 17p | 6 (2) | 16 (9) | 14 (7) | 6 (11) | .001 |
| t(8;21) | 22 (7) | 7 (4) | 4 (2) | 0 (0) | .019 |
| inv(16) | 31 (10) | 4 (2) | 7 (4) | 4 (7) | .002 |