Table 1:
Participant demographics
| Sleeve Gastrectomy group (n=29) | Non-surgical group (n=30) | p-value | |
|---|---|---|---|
| Age (years) | 18.0 ± 2.1 | 17.95 ± 3.0 | 0.94 |
| Female/Male (n) | 23/6 | 22/8 | 0.59 |
| Race | 0.72 | ||
| Asian | 0 | 1 (3.33 %) | |
| Black or African American | 5 (17.2 %) | 4 (13.33 %) | |
| Hispanic/Latinx | 8 (27.6 %) | 10 (33.33 %) | |
| Native American | 0 | 1 (3.33 %) | |
| White | 13 (44.8 %) | 10 (33.33 %) | |
| More than one | 3 (10.3 %) | 4 (13.33 %) | |
| Height (cm) | 167.6 ± 9.7 | 166.9 ± 8.0 | 0.76 |
| Weight (kg) | 133.4 ± 25.2 | 120.6 ± 21.7 | 0.04 |
| BMI (kg/m2) | 47.4 ± 6.7 | 43.1 ± 5.5 | 0.01 |
| Body Composition by MRI | |||
| Visceral adipose tissue (VAT) (cm2) | 118.0 ± 50.6 | 111.9 ± 75.6 | 0.72 |
| Subcutaneous adipose tissue (SAT) (cm2) | 734.8 ± 162.5 | 698.7 ± 141.3 | 0.39 |
| VAT/SAT | 0.17 ± 0.08 | 0.16 ± 0.09 | 0.77 |
| Thigh muscle (cm2) | 180.4 ± 32.7 | 173.7 ± 25.6 | 0.41 |
| Calciotropic hormones | |||
| Serum calcium (mg/dL) | 9.33 ± 0.29 | 9.28 ± 0.39 | 0.59 |
| Serum 25-hydoxyvitamin D (ng/mL) | 26.24 ± 10.13 | 22.34 ± 7.55 | 0.10 |
| Serum phosphorus (mg/dL) | 3.62 ± 0.51 | 3.61 ± 0.66 | 0.98 |
| Serum parathyroid hormone (pg/mL) | 39.74 ± 13.17 | 40.75 ± 16.35 | 0.80 |
| Biomechanical CT analysis | |||
| Vertebral body strength (N) | 10962 ± 1811 | 10233 ± 1935 | 0.14 |
| Vertebral bending stiffness (kNm/rad) | 2.87 ± 0.71 | 2.68 ± 0.66 | 0.30 |
| Average vertebral BMD (mg/cm³) | 261 ± 30 | 252 ± 36 | 0.32 |
| Trabecular vertebral BMD (mg/cm³) | 250 ± 33 | 238 ± 35 | 0.19 |
| Cortical vertebral BMD (mg/cm³) | 285 ± 27 | 283 ± 40 | 0.79 |
Continuous variables are presented as means ± SD and categorial variables are presented as frequencies and percentages.
rad=radian.