Table 4.
Univariate analysis of prognostic factors for disease-free survival in 38 patients who underwent complete resection of their primary retroperitoneal sarcoma.
| Variable | N | 5-year survival (%) | P-value |
|---|---|---|---|
| Sex | 0.69 | ||
| Female | 16 | 37 | |
| Male | 22 | 12 | |
| Age | 0.87 | ||
| <55 years | 15 | 35 | |
| >55 years | 23 | 0 | |
| Duration of symptoms | 0.02 | ||
| <6 month | 22 | 26 | |
| >6 months | 11 | 0 | |
| Unknown | 5 | 33 | |
| Histological subtype | 0.91 | ||
| Liposarcoma | 20 | 50 | |
| Leiomyosarcoma | 6 | 40 | |
| MFH | 4 | 33 | |
| Other | 8 | 0 | |
| Tumor size | 0.16 | ||
| <5 cm | 2 | 50 | |
| 5–10 cm | 4 | 0 | |
| 10–20 cm | 17 | 23 | |
| >20 cm | 15 | — | |
| Tumor grade | 0.84 | ||
| low | 16 | 0 | |
| High | 22 | 28 | |
| Radiation therapy | 0.29 | ||
| Yes | 19 | 0 | |
| No | 19 | 26 | |
| Chemotherapy | 0.87 | ||
| Neo-adjuvant | 5 | — | |
| Adjuvant | 2 | 33 | |
| Both | 1 | 0 | |
| None | 30 | 12 |