Table 1.
Patient and tumor characteristics for the 1,126 patients included in the study population
| Sarcoma | Other | ||||
|---|---|---|---|---|---|
| Soft | Soft | ||||
| tissue (%) | Bone (%) | tissue (%) | Bone (%) | ||
| Sex | |||||
| Male | 101 (58) | 43 (51) | 258 (49) | 178 (53) | |
| Female | 73 (42) | 41 (49) | 274 (52) | 158 (47) | |
| Age | |||||
| < 20 | 6 (3) | 15 (18) | 46 (9) | 89 (27) | |
| 20–39 | 26 (15) | 22 (26) | 95 (18) | 53 (16) | |
| 40–59 | 46 (26) | 31 (37) | 184 (35) | 80 (24) | |
| ≥ 60 | 96 (55) | 16 (19) | 207 (39) | 114 (34) | |
| Referral year | |||||
| 2007 | 48 (28) | 12 (14) | 137 (26) | 81 (24) | |
| 2008 | 35 (20) | 22 (26) | 106 (20) | 60 (18) | |
| 2009 | 46 (26) | 18 (21) | 141 (27) | 88 (26) | |
| 2010 | 45 (26) | 32 (38) | 148 (28) | 107 (32) | |
| Duration of symptoms | |||||
| ≤ 1 year | 121 (70) | 61 (73) | 299 (56) | 229 (68) | |
| > 1 year | 37 (21) | 12 (14) | 139 (26) | 43 (13) | |
| Missing data | 16 (9) | 11 (13) | 94 (18) | 64 (19) | |
| Tumor diameter | |||||
| < 5 cm | 68 (39) | 26 (31) | 251 (47) | 156 (46) | |
| ≥ 5 cm | 98 (56) | 54 (64) | 267 (50) | 115 (34) | |
| Missing | 8 (5) | 4 (5) | 14 (3) | 65 (19) | |
| Histological grade a | |||||
| Benign | - | - | 364 (68) | 182 (54) | |
| Low | 57 (33) | 21 (25) | - | - | |
| High | 117 (67) | 63 (75) | - | - | |
| No biopsy | - | - | 168 (32) | 154 (46) | |
| Tumor depth b | |||||
| Superficial | 63 (36) | - | 182 (34) | - | |
| Deep | 109 (63) | - | 350 (66) | - | |
| Missing data | 2 (1) | - | - | - | |
| Total | 174 (100) | 84 (100) | 532 (100) | 336 (100) |
a Low: Trojani grade 1; High: Trojani grade 2–3
b Evaluated after imaging, clinical examination, and/or surgical removal. Not necessarily a presenting symptom.