Table 4.
Mean trends in nutritional variables through 24-month follow-up
| BMI <35.0 (n = 233) | BMI ≥35.0 (n = 122) | p value | |
|---|---|---|---|
| Preop BMI, kg/m2 (mean±SD) | 31.3±1.9 | 39.3±3.7 | <0.001a |
| Postop BMI, kg/m2 (mean±SD) | 25.4±2.0 | 30.2±3.4 | <0.001a |
| BMI change, kg/m2 (mean±SD) | 5.9±1.8 | 9.1±2.9 | <0.001a |
| %TWL (mean±SD) | 18.7±5.5 | 23.0±6.4 | <0.001a |
| Preop A1C (mean±SD) | 9.9±1.5 | 9.6±1.4 | 0.073a |
| Postop A1C (mean±SD) | 6.3±0.7 | 6.2±0.6 | 0.585a |
| A1C change (mean±SD) | 3.6±1.6 | 3.4±1.4 | 0.144a |
| % A1C change (mean±SD) | 35.5±10.6 | 34.3±9.2 | 0.289a |
| T2DM duration, years (mean±SD) | 11.4±5.3 | 13.3±7.1 | <0.005a |
| T2DM severity, n (%) | 0.900b | ||
| OAD | 30 (12.8) | 17 (13.9) | |
| Insulin | 26 (11.2) | 13 (10.7) | |
| OAD + Insulin | 177 (76.0) | 92 (75.4) | |
| T2DM remission, n (%) | 182 (78.1) | 99 (81.1) | 0.77b |
Preop, preoperative; postop, postoperative; BMI, body mass index; TWL, total weight loss; A1C, hemoglobin A1C; T2DM, type 2 diabetes mellitus; OAD, oral antidiabetic. Severity was determined by medication usage. a Independent samples t test. b χ2 test.