Variable | L5-S group | L5-NS group | P |
---|---|---|---|
Patient no. | 34 | 20 | - |
Male (%) | 18 (52.9%) | 8 (40.0%) | 0.358 |
Female (%) | 16 (47.1%) | 12 (60.0%) | |
Mean age (y) | 51.7 ± 12.7 | 46.6 ± 11.8 | 0.514 |
BMI (kg/m2) | 25.7 ± 6.7 | 26.5 ± 7.1 | 0.482 |
Screw no. | 136 | 80 | - |
Grade 0 (%) | 101 (74.3%) | 61 (76.3%) | 0.886 |
Grade 1 (%) | 25 (18.4%) | 14 (17.5%) | |
Grade 2 (%) | 9 (6.6%) | 5 (6.3%) | |
Grade 3 (%) | 1 (0.7%) | 0 (0.0%) |