Results of cytogenetics analysis*(n = 232)
.  | Frequency .  | 
|---|---|
| Favorable | |
| t(15;17)(q22;q11-12) | 2 | 
| inv(16)(p13q22) | 1 | 
| Intermediate | |
| Normal* | 104 | 
| + 8† | 13 | 
| Others | 5 | 
| Unfavorable | |
| del(5)(q12-31-q31-35)‡ | 10 | 
| del(5)(q13q33)‡ | 9 | 
| - 7‡ | 9 | 
| del(7)(q22)‡ | 2 | 
| del(7)(q32)‡ | 1 | 
| del(20)(q11-13) | 4 | 
| del(20)(q11) | 2 | 
| + 8§ | 6 | 
| Others | 45 | 
|  Unknown  |  19  | 
.  | Frequency .  | 
|---|---|
| Favorable | |
| t(15;17)(q22;q11-12) | 2 | 
| inv(16)(p13q22) | 1 | 
| Intermediate | |
| Normal* | 104 | 
| + 8† | 13 | 
| Others | 5 | 
| Unfavorable | |
| del(5)(q12-31-q31-35)‡ | 10 | 
| del(5)(q13q33)‡ | 9 | 
| - 7‡ | 9 | 
| del(7)(q22)‡ | 2 | 
| del(7)(q32)‡ | 1 | 
| del(20)(q11-13) | 4 | 
| del(20)(q11) | 2 | 
| + 8§ | 6 | 
| Others | 45 | 
|  Unknown  |  19  | 
Percentage of patients in each grouping are as follows: favorable, 1%; intermediate, 53%; unfavorable, 38%; and unknown, 8%. Results are based on Southwest Oncology Group (SWOG) classification.22
45% of all patients analyzed for cytogenetics.
6% of all patients analyzed for cytogenetics.
Patients with these 5 unfavorable cytogenetics (deletions of whole or part of chromosomes 7 or 5) compose 13% of all patients analyzed for cytogenetics.
Associated with del(7).