Table 1.
Preoperative clinical and radiographic data
| Variable | Healthy-weight patients (BMI% < 85) | Obese patients (BMI% ≥ 85) | p value |
|---|---|---|---|
| Number of patients | 181 | 55 | |
| Number of males | 32 | 12 | |
| Number of females | 149 | 43 | |
| Age (years)* | 14.5 ± 1.9 (11–22) | 14.0 ± 2.0 (11–20) | |
| Height (cm)* | 162.7 ± 9.2 (140–188) | 159.2 ± 12.9 (112–183) | 0.03 |
| Weight (kg)* | 52.1 ± 9.5 (25–83) | 72.9 ± 16.6 (47–136) | < 0.001 |
| BMI (kg/m2)* | 19.6 ± 2.3 (10.1–25.1) | 28.6 ± 4.6 (22.3–46.2) | < 0.001 |
| BMI%* | 46.6 ± 24.6 (4–84) | 93.9 ± 5.3 (85–99) | < 0.001 |
| Preoperative major curve (°)* | 53.8 ± 8 (41–85) | 54.9 ± 8.3 (40–90) | 0.37 |
| Preoperative kyphosis (°)* | 33.3 ± 15.4 (−12 to 65) | 37.1 ± 15.3 (5–56) | 0.19 |
| Preoperative lordosis (°)* | 45.4 ± 13.3 (11–92) | 46 ± 12.1 (17–68) | 0.82 |
* Values are expressed as mean ± SD, with range in parentheses; BMI% = BMI percentile.