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Baseline characteristics
| Characteristic | Value |
|---|---|
| Sex | |
| Male | 25 (81) |
| Female | 6 (9) |
| Age (yr) | 59.7±12 |
| Levels of anterior cervical discectomy and fusion | |
| C3–5 | 14 (45) |
| C4–6 | 10 (32) |
| C5–7 | 7 (23) |
Values are presented as number (%) or mean±standard deviation.
