Table 2.
Changes observed after surgery in the patients included in the study (mean follow-up (days): 534 ± 24.1).
| Variables | Before surgery | After surgery | P-value |
|---|---|---|---|
| (n = 56) | (n = 55) | ||
| Weight (kg) | |||
| Mean ± SD | 129.7 ± 24.2 | 83.6 ± 19.2 | <0.001† |
| Median | 127.5 | 83.6 | |
| BMI (kg/m2)* | |||
| Mean ± SD | 47.7 ± 6.5 | 31.0 ± 6.2 | <0.001† |
| Median | 48.3 | 30.7 | |
| Normal weight | 0 | 12 (21.4) | <0.001†† |
| Overweight | 0 | 14 (25.0) | |
| Obesity (grade I) | 0 | 14 (25.0) | |
| Obesity (grade II) | 9 (15.3) | 11 (19.6) | |
| Obesity (grade III) | 50 (84.7) | 5 (8.9) | |
| TBWL (kg) | |||
| Mean ± SD | 45.3 ± 20.7 | NA | |
| Median | 43.3 | NA | |
| %EWL | 65.4 | NA | |
| Smoking habit# | |||
| Yes | 10 (16.9) | 14 (23.7) | 0.229†† |
| No | 46 (78.0) | 41 (69.5) | |
| Number of cigarettes | |||
| Mean ± SD | 11.6 ± 6.3 | 15.0 ± 7.6 | 0.355† |
| Median | 11.0 | 12.0 | |
| Total lipids (mg/mL) | |||
| Mean ± SD | 6.6 ± 0.9 | 5.9 ± 1.1 | 0.001††† |
| Median | 6.5 | 6.1 | |
SD, standard deviation; BMI, body mass index; TBWL, total body weight loss; %EWL, percentage of excess body weight loss; NA, not applicable.
*Normal weight: 18.5 – 24.99, overweight: 25.0 – 29.99, obesity (grade I): 30 – 34.99, obesity (grade II): 35 – 39.99, obesity (grade III): ≥40. Missed follow-up: 3 patients.
Missed data before surgery: 3 patients; missed data after surgery: 4 patients.
†Mann-Whitney U test.
††Chi-squared test.
†††Student’s t-test.