Table 1 Patients’ demographics, clinical characteristics at diagnosis.
From: A SEER-based nomogram accurately predicts prognosis in Ewing’s sarcoma
Variables | Training cohort N (%) | Validaton cohort N (%) | Total N(%) | P-Value |
|---|---|---|---|---|
N | 713 | 407 | 1120 | |
Age | 0.288 | |||
0–17 | 364 (51.05) | 214 (52.58) | 578 (51.61) | |
18–59 | 337 (47.27) | 181 (44.47) | 518 (46.25) | |
≥ 60 | 12 (1.68) | 12 (2.95) | 24 (2.14) | |
Race | 0.487 | |||
Black | 28 (3.93) | 12 (2.95) | 40 (3.57) | |
White | 631 (88.50) | 358 (87.96) | 989 (88.30) | |
Other | 54 (7.57) | 37 (9.09) | 91 (8.13) | |
Gender | 0.657 | |||
Female | 269 (37.73) | 159 (39.07) | 428 (38.21) | |
Male | 444 (62.27) | 248 (60.93) | 692 (61.79) | |
Primary site | 0.578 | |||
Axial | 341 (47.83) | 181 (44.47) | 522 (46.61) | |
Extremity | 327 (45.86) | 199 (48.89) | 526 (46.96) | |
Other | 45 (6.31) | 27 (6.63) | 72 (6.43) | |
Tumor size | 0.480 | |||
≤ 5 cm | 182 (25.53) | 107 (26.29) | 289 (25.80) | |
6–10 cm | 298 (41.80) | 181 (44.47) | 479 (42.78) | |
> 10 cm | 233 (32.68) | 119 (29.24) | 352 (31.43) | |
Metastasis | 0.869 | |||
No | 510 (71.53) | 293 (72.00) | 803 (71.70) | |
Yes | 203 (28.47) | 114 (28.00) | 317 (28.30) | |
T stage | 0.363 | |||
T0 | 3 (0.42) | 4 (0.98) | 7 (0.63) | |
T1 | 302 (42.36) | 182 (44.72) | 484 (43.21) | |
T2 | 372 (52.17) | 202 (49.63) | 574 (51.25) | |
T3 | 17 (2.38) | 13 (3.19) | 30 (2.68) | |
Tx | 19 (2.66) | 6 (1.47) | 25 (2.23) | |
N stage | 0.080 | |||
N0 | 619 (86.82) | 361 (88.70) | 980 (87.50) | |
N1 | 50 (7.01) | 35 (8.60) | 85 (7.59) | |
Nx | 44 (6.17) | 11 (2.70) | 55 (4.91) |
