Table 1.
Participants and data splitting. * Height and body weight data were missing for three patients in the training group.
| All Patients (N = 80) |
Training Group (N = 60) |
Test Group (N = 20) |
|
|---|---|---|---|
| Age (range) | 60.4 (18–83) | 61.9 (18–83) | 56.1 (18–79) |
| Sex | |||
| Male (%) | 64 (80.0) | 47 (78.3) | 17 (85.0) |
| Female (%) | 16 (20.0) | 13 (21.7) | 3 (15.0) |
| Height (range) | 165.8 (143–186) (N = 77 *) | 164.9 (145–182) (N = 57 *) | 168.3 (143–186) |
| Body weight (range) | 64.4 (41–1147) (N = 77 *) | 62.9 (41–86) (N = 57 *) | 68.7 (41–114) |
| ASIA Impairment Scale on Admission | |||
| A (%) | 31 (38.8) | 26 (43.3) | 5 (25.0) |
| B (%) | 15 (18.8) | 10 (16.7) | 5 (25.0) |
| C (%) | 30 (37.5) | 20 (33.3) | 10 (50.0) |
| D (%) | 4 (5.0) | 4 (6.7) | 0 (0.0) |
| NLI | |||
| C1 (%) | 2 (2.5) | 2 (3.3) | 0 (0.0) |
| C2 (%) | 3 (3.8) | 3 (5.0) | 0 (0.0) |
| C3 (%) | 11 (13.8) | 8 (13.3) | 3 (15.0) |
| C4 (%) | 36 (45.0) | 24 (40.0) | 12 (60.0) |
| C5 (%) | 17 (21.3) | 14 (23.3) | 3 (15.0) |
| C6 (%) | 9 (11.3) | 7 (11.7) | 2 (10.0) |
| C7 (%) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
| C8 (%) | 1 (1.3) | 1 (1.7) | 0 (0.0) |
| T1 (%) | 1 (1.3) | 1 (1.7) | 0 (0.0) |
| ASIA total motor score on admission (range) | 21.3 (0–72) | 22.6 (0–72) | 17.5 (1–44) |
| Lesion Type | |||
| Compression fracture (%) | 1 (1.3) | 1 (1.7) | 0 (0.0) |
| Axis rotation dislocation fracture (%) | 1 (1.3) | 1 (1.7) | 0 (0.0) |
| Atlas fracture (%) | 1 (1.3) | 1 (1.7) | 0 (0.0) |
| Flexion teardrop fracture (%) | 3 (3.8) | 2 (3.3) | 1 (5.0) |
| Dens fracture (%) | 2 (2.5) | 2 (3.3) | 0 (0.0) |
| Anterior dislocation fracture (%) | 20 (25.0) | 18 (33.3) | 2 (10.0) |
| Vertebral fracture (%) | 6 (7.5) | 2 (3.3) | 4 (20.0) |
| Burst fracture (%) | 2 (2.5) | 2 (3.3) | 0 (0.0) |
| Fracture of the vertebral arch (%) | 1 (1.3) | 0 (0.0) | 1 (5.0) |
| Spinal cord injury without bone injury (%) | 42 (52.5) | 30 (50.0) | 12 (60.0) |
| Others (%) | 1 (1.3) | 1 (1.7) | 0 (0.0) |
| OPLL (%) | 23 (28.8) | 20 (33.3) | 3 (15.0) |
| Sagittal low in high (MRI) (%) | 26 (32.5) | 19 (31.7) | 7 (35.0) |
| Pre-vertebral hematoma (MRI) (%) | 53 (66.3) | 38 (63.3) | 15 (75.0) |
| Laboratory data | |||
| WBC (×10³) (range) | 10.8 (4.5–22.8) | 10.9 (4.5–21.6) | 10.5 (5.4–22.8) |
| Neut (×10³) (range) | 9.1 (3.3–20.1) | 9.2 (3.8–19.2) | 8.7 (3.3–20.1) |
| Mono (×10²) (range) | 4.93 (0.1–17.2) | 4.8 (0.3–10.4) | 5.4 (0.1–17.2) |
| Plate (×10⁴) (range) | 18.8 (8.3–32.4) | 18.1 (8.3–28.5) | 20.9 (12.6–32.4) |
| CRP (range) | 0.77 (0–11.4) | 0.69 (0–5.0) | 1.04 (0–11.4) |
| Blood glucose (range) | 135 (76–376) | 141 (76–376) | 116 (84–171) |
| Diabetes mellitus (%) | 22 (27.5) | 19 (31.7) | 3 (15) |
| Blood pressure | |||
| Systolic (range) | 119 (76–175) | 117 (76–175) | 122 (96–169) |
| Diastolic (range) | 66 (25–97) | 66 (25–97) | 66 (43–91) |
| ASIA Impairment Scale at discharge | |||
| A (%) | 21 (26.3) | 18 (30.0) | 3 (15.0) |
| B (%) | 8 (10.0) | 6 (10.0) | 2 (10.0) |
| C (%) | 18 (22.5) | 12 (20.0) | 6 (30.0) |
| D (%) | 33 (41.3) | 24 (40.0) | 9 (45.0) |