Table 5.
Subgroup analysis (n = 152) (weight regain/insufficient weight loss vs other complaints)
| WR/IWL n = 79 Mean ± SD | Other n = 73 Mean ± SD | P value | |
| Age (yr) | 41.6 ± 7.4 | 43.9 ± 10.7 | 0.121 |
| Male:female (n) | 13:66 | 14:59 | 0.661 |
| Body mass index before VBG (kg/m2) | 44.7 ± 5.0 | 42.8 ± 4.8 | 0.016 |
| Operative time (min) | 128.2 ± 46.3 | 109.7 ± 48.6 | 0.02 |
| Length of hospital stay (d) | 4.3 ± 6.8 | 3.4 ± 2.0 | 0.858 |
| Type of revision | |||
| Re-VBG | 4 | 17 | 0.004 |
| cSG | 8 | 8 | |
| cRYGB | 67 | 48 | |
| Average %EWL after VBG (%) | 31.3 ± 19.0 | 61.2 ± 23.1 | < 0.001 |
| Postoperative complications < 30 d (n, %) | 12 (15.2%) | 6 (8.2%) | 0.184 |
| Total %EWL (%) | 67.5 ± 23.7 | 65.2 ± 28.1 | 0.583 |
| Reinhold (%EWL > 50%) (%) | 79.7 | 74 | 0.398 |
| Long-term complications (%) | 22.8 | 28.8 | 0.399 |
| 2nd revisional procedure (n) | 5 | 11 | 0.079 |
| Improvement/resolution rate (%, n) | |||
| Type 2 diabetes mellitus | 90 (9/10) | 55.6 (5/9) | NA |
| Hypertension | 76.9 (10/13) | 44.4 (8/18) | NA |
| Dyslipidemia | 100 (9/9) | 100 (5/5) | NA |
| Sleep apnea | 0 (0/1) | 66.7 (2/3) | NA |
| Osteo-articular disease | 57.1 (4/7) | 57.1 (4/7) | NA |
WR: Weight regain; IWL: Insufficient weight loss; Re-VBG: Revision of the vertical banded gastroplasty; cSG: Conversion to sleeve gastrectomy; cRYGB: Conversion to Roux-en-Y gastric bypass; %EWL: Excess weight loss; NA: Not available.