Table 1.
Patient characteristics compared between the groups with and without spinal cord edema due to cervical spondylosis (SCECS)
| SCECS (n = 17) |
Non-SCECS (n = 197) |
p value | |
|---|---|---|---|
| Age (years) *1 | 64 (20) | 69 (15) | *0.016 |
| Male (%) *2 | 15 (88) | 135 (69) | 0.089 |
| BMI *1 | 25.4 (5.3) | 23.9 (5.1) | *0.038 |
| Smoking (%) *2 | 6 (35) | 76 (39) | 1 |
| Time from onset to operation (months) *1 | 6 (7) | 20 (48) | * < 0.001 |
| Postoperative follow-up period (months) *1 | 24 (53) | 27 (41) | 0.57 |
| Preoperative C2–7 cervical lordosis (°) *1 | 13 (17) | 13 (14) | 0.502 |
| Preoperative dynamic instability (%) *3 | 1 (5.8) | 21 (10.6) | 0.455 |
| Preoperative C2–7 range of motion (degrees) *1 | 35 (13) | 37 (20) | 0.399 |
| Preoperative segmental range of motion (°) *1 | 10 (8) | 8 (6) | 0.516 |
| Diameter of the spinal canal (mm) *1 | 14 (2) | 14 (2) | 0.913 |
| Preoperative JOA total score *1 | 10.0 (4.0) | 11.0 (3.0) | 0.573 |
| Postoperative JOA total score *1 | 13.0 (3.5) | 12.0 (3) | 0.887 |
| JOA recovery rate (%) *1 | 37.5 (28.5) | 28.6 (35.7) | 0.361 |
| Reoperation (%) *3 | 0 (0) | 10 (10.3) | 0.427 |
Data are presented as median (interquartile range) or frequencies (%)
*1 Mann–Whitney U test, *2 χ2 test, *3 Fisher’s exact test