Table 3.
Clinicopathological factors associated with overall survival based on univariate Cox proportional regression analysis
| Characteristics | Overall survival | P | |||
|---|---|---|---|---|---|
| HR | 95% CI | ||||
| Sex | Female | 25 | 1 | 0.837 | |
| Male | 28 | 1.064 | 0.590–1.919 | ||
| Age | ≥ 20 years | 18 | 1 | 0.777 | |
| < 20 years | 35 | 1.093 | 0.591–2.022 | ||
| Tumor size | < 5 cm | 27 | 1 | 0.940 | |
| ≥ 5 cm | 26 | 1.024 | 0.556–1.884 | ||
| Histologic grade* | I | 15 | 1 | 0.412 | |
| II | 25 | 1.267 | 0.634–2.534 | 0.503 | |
| III | 13 | 1.738 | 0.771–3.917 | 0.183 | |
| Distant metastasis* | Yes | 23 | 1 | < 0.001 | |
| No | 30 | 0.161 | 0.073–0.356 | ||
| Enneking staging* | I | 12 | 1 | < 0.001 | |
| II | 19 | 8.605 | 2.942–25.169 | ||
| III | 22 | 26.039 | 7.679–88.293 | ||
| TfR1* | Low | 11 | 1 | < 0.001 | |
| Moderate | 19 | 0.158 | 0.063–0.398 | ||
| High | 23 | 0.300 | 0.143–0.629 | ||
| VEGF* | Low | 10 | 1 | 0.021 | |
| Moderate | 19 | 0.114 | 0.043–0.303 | ||
| High | 24 | 0.422 | 0.202–0.880 | ||
HR, hazard ratio; 95% CI, 95% confidence interval. *P < 0.05