Table 1.
Clinical characteristic of patients.
| Variable | Training set | Validation set | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Low-risk thymoma | High-risk thymoma | Thymic carcinoma | Statistics | P value | Low-risk thymoma | High-risk thymoma | Thymic carcinoma | Statistics | P value | |
| N | 58 | 40 | 34 | 25 | 18 | 15 | ||||
| Age | 50.40 ± 11.70 | 49.85 ± 14.23 | 57.79 ± 10.76 | 4.87 | 0.009 | 53.24 ± 13.61 | 43.83 ± 13.04 | 56.73 ± 13.29 | 4.316 | 0.018 |
| Female | 28 (48.28%) | 17 (42.50%) | 14 (41.18%) | 0.549 | 0.76 | 11 (44.00%) | 8 (44.44%) | 4 (26.67%) | 1.427 | 0.49 |
| Male | 30 (51.72%) | 23 (57.50%) | 20 (58.82%) | 14 (56.00%) | 10 (55.56%) | 11 (73.33%) | ||||
| Symptom | – | 0.054 | – | 0.508 | ||||||
| No symptom | 37 (63.79%) | 23 (57.50%) | 14 (41.18%) | 11 (44.00%) | 8 (44.44%) | 8 (53.33%) | ||||
| Chest pain | 9 (15.52%) | 7 (17.50%) | 11 (32.35%) | 6 (24.00%) | 3 (16.67%) | 2 (13.33%) | ||||
| Cough/dyspnea | 3 (5.17%) | 3 (7.50%) | 4 (11.76%) | 4 (16.00%) | 1 (5.56%) | 3 (20.00%) | ||||
| Weakness | 6 (10.34%) | 3 (7.50%) | 0 (0.00%) | 3 (12.00%) | 1 (5.56%) | 1 (6.67%) | ||||
| Myasthenia gravis | 3 (5.17%) | 4 (10.00%) | 2 (5.88%) | 1 (4.00%) | 4 (22.22%) | 0 (0.00%) | ||||
| Others | 0 (0.00%) | 0 (0.00%) | 3 (8.82%) | 0 (0.00%) | 1 (5.56%) | 1 (6.67%) | ||||