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Patient Demographics.
| Age, years | |
|---|---|
| Mean (SD) | 13.9 (10.3) |
| Median | 12.3 |
| Gender (%) | |
| Female | 2308 (51.9) |
| Male | 2140 (48.1) |
| Functional Lesion Level (%) | |
| Thoracic (flaccid lower extremities) | 856 (19.2) |
| High-lumbar (hip flexion present) | 508 (11.4) |
| Mid-lumbar (knee extension present) | 1325 (29.8) |
| Low-lumbar (foot dorsiflexion present) | 877 (19.7) |
| Sacral (foot plantar flexion present) | 882 (19.8) |
