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Table 1 Patient characteristics

From: Surgical resection for recurrent retroperitoneal leiomyosarcoma and liposarcoma

  Leiomyosarcoma (n = 21) Liposarcoma (n = 28) p value
Age at diagnosis
 Median (range) 57 (38–85) 55 (39–78) 0.93
Gender, n (%)
 Male 9 (43%) 18 (64%) 0.16
 Female 12 (57%) 10 (36%)
Race, n (%)
 Non-Hispanic white 7 (33%) 24 (86%) 0.001
 Hispanic 1 (5%) 0 (0%)
 Black 11 (52%) 4 (14%)
 Asian 1 (5%) 0 (0%)
 Unknown 1 (5%) 0 (0%)
ECOG functional status, n (%)
 0 10 (48%) 9 (32%) 0.07
 1 6 (29%) 17 (61%)
 2 2 (9%) 0 (0%)
 Unknown 3 (14%) 2 (7%)
Initial presenting symptom, n (%)
 Bone/abdomen/back/flank/groin pain 15 (71%) 16 (57%) 0.57
 Enlarging painless mass 0 (0%) 2 (7%)
 Incidental finding on imaging/examination 1 (5%) 4 (14%)
 Other 2 (10%) 4 (14%)
 Unknown 3 (14%) 2 (7%)
Length of presenting symptoms (n = 28)
 Median (range) 1.0 (0–12) 1.1 (0–12) 0.57
Length of presenting symptoms
 ≤ 2 months 8 (38%) 12 (43%) 0.93
 > 2 months 4 (19%) 4 (14%)
 Unknown 9 (43%) 12 (43%)
Histologic grade, n (%)
 1 2 (9%) 14 (50%) 0.002
 2 6 (29%) 1 (4%)
 3 10 (48%) 12 (43%)
 Unknown 3 (14%) 1 (4%)
Tumor size (cm) [n = 39]
 Median (range) 10.4 (3–29) 27.3 (6–54) 0.0001
Tumor size (cm)
 < 15 cm 13 (62%) 3 (11%) < 0.0001
 ≥ 15 cm 2 (9%) 21 (75%)
 Unknown 6 (29%) 4 (14%)
Stage, n (%)
 1 1 (5%) 12 (43%) 0.002
 2 6 (29%) 1 (4%)
 3 7 (33%) 11 (39%)
 4 4 (19%) 1 (4%)
 Unknown 3 (14%) 3 (11%)
Resection status, n (%)
 No residual disease (R0) 11 (52%) 12 (43%) 0.49
 Microscopic disease (R1) 4 (19%) 11 (39%)
 Gross residual disease (R2) 1 (5%) 2 (7%)
 No surgery (biopsy only) 3 (14%) 2 (7%)
 Unknown 2 (10%) 1 (4%)
Neoadjuvant or adjuvant radiation
 No 9 (43%) 17 (60%) 0.20
 Yes 8 (38%) 10 (36%)
 Unknown 4 (19%) 1 (4%)
Recurrent disease, n (%)
 No 5 (24%) 7 (25%) 0.56
 Yes 14 (67%) 15 (54%)
 Unknown 2 (9%) 6 (21%)
Local recurrence, n (%)
 No 12 (57%) 7 (25%) 0.03
 Yes 4 (19%) 14 (50%)
 Not applicable 3 (14%) 1 (4%)
 Unknown 2 (10%) 6 (21%)
Resection of local recurrence, n (%)
 No 14 (67%) 9 (32%) 0.02
 Yes 2 (10%) 12 (43%)
 Unknown 5 (24%) 7 (25%)
Cause of death, n (%)
 Metastatic or recurrent sarcoma 7 (33%) 8 (29%) 0.79
 Heart failure 1 (5%) 0 (0%)
 Still alive 9 (43%) 15 (53%)
 Unknown 4 (19%) 5 (18%)
Alive, n (%)
 Dead 12 (57%) 12 (44%) 0.56
 Alive 9 (43%) 15 (56%)