Training cohort | Validation cohort | |
---|---|---|
Age, year | 55.53 ± 16.47 | 55.21 ± 16.53 |
Tumor size, cm | 13.75 ± 8.48 | 13.53 ± 8.19 |
Race | ||
Black | 165 | 76 |
Other | 131 | 51 |
White | 1226 | 521 |
Sex | ||
Female | 646 | 284 |
Male | 876 | 364 |
Histological type | ||
Liposarcoma, NOS | 181 | 73 |
Liposarcoma, well differentiated | 538 | 230 |
Myxoid liposarcoma | 443 | 198 |
Round cell liposarcoma | 46 | 24 |
Pleomorphic liposarcoma | 131 | 60 |
Mixed liposarcoma | 62 | 27 |
Fibroblastic liposarcoma | 2 | 2 |
Dedifferentiated liposarcoma | 119 | 34 |
AJCC | ||
I/II | 1229 | 541 |
III/IV | 293 | 107 |
T | ||
T1 | 213 | 101 |
T2 | 1309 | 547 |
N | ||
N0 | 1516 | 645 |
N1 | 6 | 3 |
M | ||
M0 | 1498 | 628 |
M1 | 24 | 20 |
Surgery performed | 1494 | 635 |
Radiotherapy performed | 714 | 294 |
Chemotherapy performed | 165 | 65 |
Primary site | ||
Lower extremity | 1333 | 557 |
Upper extremity | 189 | 91 |
Grade | ||
I | 829 | 358 |
II | 286 | 135 |
III | 196 | 75 |
IV | 211 | 80 |