Table 1.
Patient statistics.
| Characteristics | Total | Training set | Test set |
|---|---|---|---|
| Age | |||
| <15 | 48 (23.5%) | 38 (23.2%) | 10 (25.0%) |
| 15–25 | 131 (64.2%) | 107 (65.2%) | 24 (60.0%) |
| >25 | 25 (12.3%) | 19 (11.6%) | 6 (15.0%) |
|
| |||
| Sex | |||
| Female | 92 (45.1%) | 69 (42.1%) | 23 (57.5%) |
| Male | 112 (54.9%) | 95 (57.9%) | 17 (42.5%) |
|
| |||
| Marital status | |||
| Married | 32 (15.7%) | 19 (11.6%) | 13 (32.5%) |
| Unmarried | 172 (84.3%) | 145 (88.4%) | 27 (67.5%) |
|
| |||
| SES | |||
| Low SES | 78 (38.2%) | 66 (40.2%) | 12 (30.0%) |
| High SES | 126 (61.8%) | 98 (59.8%) | 28 (70.0%) |
|
| |||
| Surgery | |||
| Yes | 181 (88.8%) | 146 (89.0%) | 35 (87.5%) |
| No | 23 (11.2%) | 18 (11.0%) | 5 (12.5%) |
|
| |||
| Grade | |||
| Low grade | 41 (20.1%) | 15 (9.1%) | 26 (65.0%) |
| High grade | 163 (79.9%) | 149 (90.9%) | 14 (35.0%) |
|
| |||
| Location | |||
| Axial | 29 (14.2%) | 21 (12.8%) | 8 (20.0%) |
| Extremity | 138 (67.7%) | 109 (66.5%) | 29 (72.5%) |
| Other | 37 (18.1%) | 34 (20.7%) | 3 (7.5%) |