Table 1.
Characteristics of patients with osteosarcoma
| Variables | PTBP1 low (n = 19) | PTBP1 high (n = 6) | P value* |
|---|---|---|---|
| Gender | |||
| Male | 11 (57.89%) | 3 (50%) | .734 |
| Female | 8 (42.11%) | 3 (50%) | |
| Age (y) | |||
| Median | 15.3 | 14.6 | >.99 |
| Range | 8‐19 | 6‐21 | |
| Anatomical site | |||
| Femur | 6 (31.58%) | 2 (33.33%) | .840 |
| Tibia | 6 (31.58%) | 2 (33.33%) | |
| Humerus | 4 (21.05%) | 1 (16.67%) | |
| Pelvis | 2 (10.53%) | 0 (0.00%) | |
| Other | 1 (5.26%) | 1 (16.67%) | |
| Histologic subtype | |||
| Osteoblastic | 9 (47.37%) | 3 (50.00%) | .691 |
| Chondroblastic | 4 (21.05%) | 2 (33.33%) | |
| Fibroblastic | 4 (21.05%) | 1 (16.67%) | |
| Telangiectatic | 1 (5.26%) | 0 (0.00%) | |
| Other | 1 (5.26%) | 0 (0.00%) | |
| Histologic grade | |||
| III | 7 (36.84%) | 2 (33.33%) | .876 |
| IV | 12 (63.16%) | 4 (66.67%) | |
| Enneking grade | |||
| IIA | 8 (42.11%) | 3 (50%) | .734 |
| IIB | 11 (57.89%) | 3 (50%) | |
*
The difference in variables between the two groups was measured by chi‐square test.