Demographic characteristics, diagnosis, and the operated Level.
| Characteristic | Finding |
| Age, y, mean (range) | 50.96 (29–76) |
| Sex, % (n) | |
| Female | 43.39 (23) |
| Male | 56.61 (30) |
| Duration of symptoms, mo, mean (range) | 21.68 (4–48) |
| Diagnosis, % (n) | |
| Herniated disc | 41.51 (22) |
| Spondylosis | 58.49 (31) |
| Follow-up after surgery, y, mean (range) | 4.85 (2–9) |
| Number of levels fused, % (n) | |
| 1 | 83.01 (44) |
| C4 | 4.54 (2) |
| C5 | 34.09 (15) |
| C6 | 61.36 (27) |
| Number of levels fused, % (n) | |
| 2 | 19.98 (9) |
| C4-C5 | 33.33 (3) |
| C5-C6 | 55.55 (5) |
| C6-C7 | 11.11 (1) |
| Additional semiconstrained anterior cervical plate, % (n) | 77.35 (41) |