Table 1.
Characteristics of participants
| Parameters | Preoperative | P-value | Postoperative | P-value | ||
|---|---|---|---|---|---|---|
| RYGB + SG | BPD–DS | RYGB + SG | BPD–DS | |||
| N (male) | 14 (8) | 7 (2) | 0.4 | – | – | – |
| Age (years) | 54.2 ± 7.8 | 47.8 ± 7.1 | 0.1 | – | – | – |
| Height (cm) | 167.8 ± 8.7 | 167.1 ± 8.9 | 0.9 | – | – | – |
| Body weight (kg) | 117.2 ± 17.3 | 139.8 ± 15.3 | 0.009 | 83.9 ± 15 | 81.4 ± 10.0 | 0.7 |
| BMI (kg/m2) | 41.5 ± 4.1 | 50.2 ± 5.5 | 0.004 | 29.7 ± 4.3 | 29.3 ± 4.1 | 0.8 |
| ΔBMI | – | – | – | 11.8 ± 2.9 | -20.9 ± 2.9 | 0.00002 |
| %TWL | – | – | – | 28.2 ± 6.8 | 41.7 ± 4.6 | 0.00005 |
| %EWL | – | – | – | 65.2 ± 18.8 | 78.6 ± 15.1 | 0.1 |
| Neck circ. (cm) | 44.3 ± 2.7 | 45.1 ± 3.3 | 0.6 | 38.6 ± 2.9 | 35.2 ± 2.8 | 0.03 |
| Waist circ. (cm) | 134.1 ± 10.1 | 147.9 ± 9.8 | 0.01 | 105.2 ± 11.7 | 104.1 ± 8.5 | 0.8 |
| Fat mass (kg) | 55.3 ± 12.6 | 78.3 ± 7.5 | 0.00006 | 25.5 ± 11.3 | 26.8 ± 9.1 | 0.8 |
| Fat free mass (kg) | 63.9 ± 11 | 66.1 ± 6.2 | 0.6 | 57 ± 11.0 | 56.2 ± 5.1 | 0.8 |
| Adipocyte size (µm) | 85.5 ± 8.4 | 88.8 ± 5.1 | 0.3 | 64.8 ± 8.9 | 58.5 ± 7.9 | 0.1 |
| SBP | 137.4 ± 18.1 | 143.1 ± 16.5 | 0.5 | 133.6 ± 20.8 | 129.9 ± 12.3 | 0.6 |
| DBP | 81.8 ± 6.9 | 82.7 ± 6.8 | 0.8 | 78.6 ± 13.5 | 74.3 ± 8.8 | 0.4 |
N number of participants, BMI body mass index, ΔBMI delta BMI, %TWL percentage of total body weight loss, %EWL percentage of excess body weight loss, Circ circumference. SBP and DBP stand for systolic and diastolic blood pressure, respectively