Table 3. Prognostic factors for disease-free survival and overall survival.
| Variable | Category | DFS | OS | ||||
|---|---|---|---|---|---|---|---|
| HR | 95% CI | P | HR | 95% CI | P | ||
| PIK3CA copy number status | Copy number gain vs Normal copy number (ref) |
2.400 | 1.105-5.213 | 0.027 | 1.628 | 0.555-4.770 | 0.375 |
| Age | Age ≥52 years vs Age < 52 years (ref) |
2.393 | 1.203-4.760 | 0.013 | 3.875 | 1.351-11.118 | 0.012 |
| Gender | Female vs Male (ref) |
0.650 | 0.357-1.186 | 0.161 | 1.078 | 0.431-2.697 | 0.873 |
| Histology | Mixoid/Round cell, Pleomorphic vs Well/De-diff (ref) |
1.692 | 0.896 −3.196 | 0.105 | 1.336 | 0.538-3.316 | 0.533 |
| Primary tumor sites | Extremity, Inguinal/genital, other area vs Retroperitoneum/Intraabdomen (ref) |
0.880 | 0.439-1.762 | 0.718 | 1.335 | 0.420-4.242 | 0.624 |
Abbreviations: DFS, disease-free survival; OS, overall survival; HR, hazard ratio; CI, confidence interval; ref, reference; diff, differentiated