Table 1.
Patient characteristics and treatment details
| Variable | Number (%) |
|---|---|
| Number of patients | 183 (100) |
| Age, y | |
| Median | 35.5 |
| SD | ±15.8 |
| Gender | |
| Female/male | 77/108 |
| Histology | |
| Grade I only (MPE) | 176 (96.2) |
| Grades I and II | 7 (3.8) |
| Symptoms | |
| Low-back pain | 155 (84.7) |
| Extremity numbness | 85 (46.4) |
| Extremity weakness | 75 (41.0) |
| Urinary dysfunction | 54 (29.5) |
| Abnormal gait | 37 (20.2) |
| 85 (46.4) | |
| Tumor location | |
| Cervical only | 1 (0.5) |
| Cervicothoracic | 2 (1.1) |
| Thoracic only | 1 (0.5) |
| Thoracolumbar | 58 (31.7) |
| Lumbosacral/filum terminale | 121 (66.2) |
| Spinal dissemination at initial presentation | |
| Yes | 4 (2.2) |
| No | 179 (97.8) |
| Primary treatment | |
| Surgery alone | 96 (52.6) |
| Surgery and radiotherapy | 85 (46.4) |
| Surgery and chemotherapy | 1 (0.5) |
| RT alone | 1 (0.5) |
| Extent of surgery | |
| Gross total resection | 99 (54.1) |
| Subtotal resection | 73 (39.9) |
| Biopsy only | 6 (3.3) |
| Unknown | 5 (2.7) |