Table 4: Univariate analysis of prognostic factors for disease-free survival in 38 patients who underwent complete resection of their primary retroperitoneal sarcoma.

Variable 5-year survival (%) -value

Sex0.69
Female1637
Male2212
Age0.87
55 years1535
55 years230
Duration of symptoms0.02
6 month2226
6 months110
Unknown533
Histological subtype0.91
Liposarcoma2050
Leiomyosarcoma640
MFH433
Other80
Tumor size0.16
5 cm250
5–10 cm40
10–20 cm1723
20 cm15
Tumor grade0.84
low160
High2228
Radiation therapy0.29
Yes190
No1926
Chemotherapy0.87
Neo-adjuvant5
Adjuvant233
Both10
None3012