The Value of Surgery for Retroperitoneal Sarcoma

Table 3

Univariate analysis of prognostic factors for overall survival in 41 patients with primary retroperitoneal sarcoma.

Variable	𝑁	5-year survival (%)	𝑃-value
Sex			0.89
Female	18	55
Male	23	48
Age			0.14
<55 years	16	76
>55 years	25	33
Duration of symptoms			0.53
<6 month	25	52
>6 months	11	0
Unknown	5	50
Histological subtype			0.94
Liposarcoma	22	77
Leiomyosarcoma	7	60
MFH	4	33
Other	8	0
Tumor size			0.26
<5 cm	2	100
5–10 cm	4	100
10–20 cm	18	21
>20 cm	17	60
Tumor grade			0.05
Low	17	100
High	24	27
Resection			0.39
R0/R1	38	42
R2	3	50
Resection high-grade tumor only			0.03
R0/R1	22	74
R2	2	44
Radiation therapy			0.40
Yes	19	53
No	22	63
Chemotherapy			0.57
Neo-adjuvant	5	30
Adjuvant	2	—
Both	1	—
None	33	43

Multivariate analysis significant for grade (𝑃=.006).