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Clinicopathological features from OST cases included in the study.
| Characteristic, Unit | N (%) | Mean (95% CI) |
|---|---|---|
| Samples | 93 | |
| Sex (proportion female) | 39 (41.9%) | |
| Age, years | 18 (17–21) | |
| ≤18 | 65 (70.0%) | |
| >18 | 28 (30.0%) | |
| Localization | ||
| Distal Femur | 62 (66.7%) | |
| Proximal Tibia | 31 (33.3%) | |
| Neoadjuvant Chemotherapy | 20 (21.5%) | |
| Metastasis | 57 (61.3%) | |
| TAD, months | 103 (85–122) | |
| DFI, months | 83 (64–103) |
Legend: OST—osteosarcoma; TAD—time after diagnosis; DFI—disease-free interval; CI—Confidence interval.
