Table 1 Patient and tumour characteristics

Number of patients

80

44

124

Age at operation (median), years

60.5

56

57.5

Gender

 Male

46 (57.5%)

24 (54.5%)

70 (56.5%)

 Female

34 (42.5%)

20 (45.5%)

54 (43.5%)

Tumour site

 Thigh

74 (92.5%)

30 (68.2%)

104 (83.9%)

 Popliteal fossa

1 (1.3%)

5 (11.4%)

6 (4.8%)

 Leg

5 (6.3%)

9 (20.5%)

14 (11.3%)

Median tumour size (cm)

13

13

13

Tumour grade

 II

28 (35.0%)

13 (29.5%)

41 (33.1%)

 III

52 (65.0%)

31 (70.5%)

83 (66.9%)

Histology

 Pleomorphic

35 (43.8%)

20 (45.5%)

55 (44.4%)

 Liposarcoma

13 (16.3%)

10 (22.7%)

23 (18.5%)

 Leiomyosarcoma

9 (11.3%)

5 (11.4%)

14 (11.3%)

 Solitary fibrous tumour

3 (3.8%)

1 (2.3%)

4 (3.2%)

 MPNST

2 (2.5%)

2 (4.5%)

4 (3.2%)

 Other

18 (23.8%)

6 (13.6%)

24 (19.4%)