Table 1.
Demographic Data.
| Sex, n | M: 28 F: 75 |
|---|---|
| Age, mean (SD), yr | 14.4 (1.9) |
| Diagnosis, n | AIS: 56 |
| non-AIS: 47 | |
| Height, mean (SD), cm | 150.8 (12.1) |
| Weight, mean (SD), kg | 41.2 (11.4) |
| Body mass index, mean (SD), kg/m2 | 17.9 (3.6) |
| Cobb angle, mean (SD), degrees | 69.9 (25.6) |
| Fixed vertebrae, mean (SD), n | 11.8 (3.3) |
| Operative time, mean (SD), min | 311.7 (98.2) |
| Estimated blood loss, mean (SD), mL | 1009.8 (726.9) |
| Hospital stay, mean (SD), days | 22.8 (16.2) |
Abbreviations: AIS, adolescent idiopathic scoliosis; SD, standard deviation
Table 1 shows demographic data of the patients included in this study. Almost half of this cohort included non-ais patients. The averaged preoperative cobb angle, operative time, and estimated blood loss was 69.9°, 311.7 minutes, and 1009.8 ml, respectively.