Table 1. Baseline and operative characteristics of patients with and without movement disorders who underwent spinal deformity surgery.
| Variables | Control (n=10,678) | Movement disorder (n=365) | P value |
|---|---|---|---|
| Age, mean ± SD (years) | 59±15 | 67±9 | <0.001* |
| Age >65 years (%) | 37.5 | 63.0 | <0.001* |
| Male gender (%) | 26.8 | 32.6 | 0.015* |
| CCI score, median (IQR) | 0 (0–1) | 0 (0–1) | 0.146 |
| Osteoporosis (%) | 8.6 | 12.6 | 0.008* |
| Complex procedure (%) | 31.2 | 36.2 | 0.044* |
| Cervical spine fusion (%) | 6.7 | 6.7 | 0.250 |
| Thoracic fusion (%) | 45.2 | 41.6 | 0.174 |
| Lumbosacral fusion (%) | 66.5 | 74.8 | 0.001* |
| Use of rh-BMP-2 (%) | 39.1 | 51.2 | 0.001* |
| RBC transfusion (%) | 27.4 | 34.0 | 0.006* |
*, statistical significance. CCI, Charlson Comorbidity Index; IQR, interquartile range; SD, standard deviation; rh-BMP-2, recombinant human bone morphogenetic protein-2; RBC, red blood cell.