Table 1.
Patient demographics
| Variable | 1-Level ACDF (n = 78) | 2-Level ACDF (n = 49) | 3-Level ACDF (n = 38) | p-value |
|---|---|---|---|---|
| Age (yr) | 53.10 ± 11.00 | 52.63 ± 9.67 | 56.55 ± 9.24 | 0.157 |
| Sex, male:female | 49:29 | 37:12 | 37:12 | 0.131 |
| BMI (kg/m2) | 24.20 ± 3.13 | 24.10 ± 2.79 | 25.45 ± 2.33 | 0.191 |
| Smoking (%) | 23.08 | 22.44 | 28.95 | 0.740 |
| Diabetes (%) | 16.67 | 16.33 | 21.05 | 0.703 |
| BMD (T-score) | -2.16 ± 0.96 | -1.89 ± 1.38 | -1.14 ± 1.32 | 0.081 |
| Follow-up (mo) | 33.28 ± 11.40 | 31.02 ± 7.15 | 30.18 ± 4.64 | 0.825 |
| Operation level | ||||
| C3/4 | 9 | - | - | |
| C4/5 | 15 | - | - | |
| C5/6 | 37 | - | - | |
| C6/7 | 17 | - | - | |
| C3/4/5 | - | 7 | - | |
| C4/5/6 | - | 11 | - | |
| C5/6/7 | - | 31 | - | |
| C3/4/5/6 | - | - | 13 | |
| C4/5/6/7 | - | - | 25 |
Values are presented as mean±standard deviation unless otherwise indicated.
ACDF, anterior cervical discectomy and fusion; BMI, body mass index; BMD, bone mineral density.