Table 2. Frequency and outcomes of additional chromosomal abnormalities.
ACA Group1 | N (%)2 | RFS | OS | ||
---|---|---|---|---|---|
Median RFS (months) | 5-year RFS rate (%) | Median OS (months) | 5-year OS rate (%) | ||
HeH | 25 (21) | 124 | 68 | 125 | 67 |
-7/7q | 24 (20) | 58 | 49 | 76 | 58 |
+der(22)t(9;22) | 15 (16) | 11 | 31 | 22 | 22 |
-9/9p | 15 (16) | 17 | 34 | 28 | 26 |
+21 | 8 (7) | not reached | 75 | not reached | 75 |
+8 | 7 (6) | 70 | 56 | 53 | 48 |
Translocation of 1q21 | 7 (6) | 38 | 50 | not reached | 63 |
Patients with more than one ACA are included in each individual ACA category. However, patients with HeH were excluded from analysis of individual ACAs.
Percentages represent proportion of patients with given abnormality out of evaluable population of 118 patients with ACAs
ACA, additional chromosomal abnormalities; RFS, relapse-free survival; OS, overall survival; HeH, high hyperdiploidy