Table 3.

Univariate Analysis of Factors Potentially Affecting Actuarial Rates of Intra-abdominal Recurrence and Distant Metastatic Free Survival Rates at 5 years

Variable	Intra-abdominal Recurrence Rate at 5-year, %	Intra-abdominal Recurrence P Value	DMFS 5-year rate, %	DMFS P value
Age
> 65	62	0.047	73	0.48
≤ 65	40		68
Tumor Size
> 5 cm	42	0.13	70	0.51
≤ 5 cm	65		62
De Novo at presentation
Yes	31	<0.001	66	0.28
No	76		78
Histology
Liposarcoma	54	0.008	84	0.08
Other	39		61
Grade
High	46	0.32	60	0.003
Intermediate	40		81
Low	41		94
Margin Status
Positive/Uncertain	58	0.003	70	0.86
Negative	30		68
Treatment Plan
Preop RT	44	0.60	70	0.62
Postop RT	47		68
Radiation Dose
> 50 Gy	43	0.85	67	0.71
≤ 50 Gy	49		57
IORT
Yes	44	0.82	67	0.46
No	45		70
Neo or Adj. Chemo
Yes	37	0.38	71	0.98
No	51		67
Concurrent Chemoradiation
Yes	45	0.96	50	0.02
No	44		72

Abbreviations: DMFS, distant metastatic free survival; RT, radiation therapy; IORT, intraoperative radiation therapy; Neo/Adj, neoadjuvant/adjuvant.