Demographics of patients undergoing pedicle screw insertion.
| Variable | O-Arm Group | Surgivisio Group | P |
| Sex ratio, men/women | 20/30 | 20/30 | >0.99 |
| Age, y, mean ± SD (range) | 71 ± 10 (40–85) | 64 ± 13 (29–92) | 0.02 |
| BMI, mean ± SD (range) | 27 ± 4 (20–42) | 26 ± 5 (18–40) | 0.40 |
Abbreviations: BMI, body mass index; SD, standard deviation; y, years.
Note: Boldface indicates statistically significant findings.