Table 3.
Comparison of demographic and treatment factors by tumor characteristics.
| Characteristics | Number of patients (% of patients with specified characteristic)a |
|||||
|---|---|---|---|---|---|---|
| Tumor site |
Tumor size |
Tumor extension |
||||
| Extremity | Axial | ≤70 mm | >70 mm | Localized/regional | Distant | |
| Age at diagnosis | ||||||
| Mean ± SD | 36.1 ± 16.0 | 38.0 ± 17.1 | 40.1 ± 17.0 | 38.6 ± 17.2 | 37.4 ± 16.6 | 40.3 ± 16.3 |
| Gender | ||||||
| Male | 92 (52.0) | 26 (38.2) | 29 (47.5) | 28 (50.0) | 82 (50.9) | 15 (53.6) |
| Female | 85 (48.0) | 42 (61.8) | 32 (52.5) | 28 (50.0) | 79 (49.1) | 13 (46.4) |
| Race | ||||||
| White | 131 (83.4) | 48 (84.2) | 47 (85.5) | 41 (83.7) | 118 (84.9) | 19 (79.2) |
| Black | 26 (16.6) | 9 (15.8) | 8 (14.5) | 8 (16.3) | 21 (15.1) | 5 (20.8) |
| Tumor site | ||||||
| Extremity | NA | NA | 44 (73.3) | 36 (65.5) | 119 (73.9) | 15 (55.6) |
| Axial | NA | NA | 16 (26.7) | 19 (34.5) | 42 (26.1) | 12 (44.4) |
| Tumor size | ||||||
| ≤70 mm | 36 (45.0) | 19 (54.3) | NA | NA | 53 (54.1) | 5 (41.7) |
| >70 mm | 44 (55.0) | 16 (45.7) | NA | NA | 45 (45.9) | 7 (58.3) |
| Tumor extension | ||||||
| Localized | 80 (59.7)b | 17 (31.5)b | 31 (53.4) | 20 (38.5) | NA | NA |
| Regional | 39 (29.1)b | 25 (46.3)b | 22 (37.9) | 25 (48.1) | NA | NA |
| Distant | 15 (11.2)b | 12 (22.2)b | 5 (8.6) | 7 (13.5) | NA | NA |
| Surgery type | ||||||
| No surgery | 30 (18.9) | 17 (28.8) | 6 (10.9) | 8 (14.8) | 20 (13.6)c | 8 (29.6)c |
| Local excision | 67 (42.1) | 22 (37.3) | 22 (40.0) | 12 (22.2) | 65 (44.2)c | 6 (22.2)c |
| GTR | 62 (39.0) | 20 (33.9) | 27 (49.1) | 34 (63.0) | 62 (42.2)c | 13 (48.1)c |
| Radiation | ||||||
| No | 157 (91.3)d | 40 (62.5)d | 53 (91.4)e | 40 (74.1)e | 130 (83.3)f | 15 (53.6)f |
| Yes | 15 (8.7)d | 24 (37.5)d | 5 (8.6)e | 14 (25.9)e | 26 (16.7)f | 13 (46.4)f |
a
Except for the patients with other races, and unknown tumor site, tumor size, tumor extension, surgery type and radiation.
Pearson □2 test.
b
P = 0.002.
c
P = 0.038.
d
P < 0.001.
e
P = 0.015.
f
P < 0.001.
GTR, gross total resection.