Table 3.
24-month weight and A1C outcomes in T2D patients (n = 355)
| Preoperative, mean ± SD | 24-month follow-up | p valuea | |||
|---|---|---|---|---|---|
| mean ± SD | mean change ± SD 95% CI | ||||
| Absolute weight, kg (n = 355) | 94.2±14.6 | 74.9±11.2 | 19.3±7.7 | 18.5, 20.1 | <0.001 |
| BMI, kg/m2 | 34.0±4.6 | 27.0±3.4 | 7.0±2.7 | 6.7, 7.3 | <0.001 |
| TWL, % | − | 20.2±6.1 | − | 19.5, 20.8 | |
| EBMIL, % | − | 87.7±35.2 | − | 84.1, 91.4 | |
| BMI change by T2D duration | |||||
| ≤5 years (n = 39) | 33.6±3.4 | 26.6±2.8 | 7.0±2.8 | 6.1, 7.9 | <0.001 |
| 6–10 years (n = 147) | 33.6±4.7 | 26.9±3.6 | 6.7±2.5 | 6.3, 7.1 | <0.001 |
| >10 years (n = 169) | 34.4±4.9 | 27.2±3.5 | 7.2±2.9 | 6.8, 7.7 | <0.001 |
| p valueb | 0.269 | 0.552 | − | − | − |
| BMI change by T2D severity | |||||
| OAD (n = 47) | 34.6±4.6 | 27.3±3.6 | 7.4±3.0 | 6.5, 8.2 | <0.001 |
| Insulin (n = 39) | 33.7±5.4 | 26.7±3.3 | 7.0±3.5 | 5.9, 8.2 | <0.001 |
| OAD + insulin (n = 269) | 33.9±4.5 | 27.0±3.5 | 6.9±2.5 | 6.6, 7.2 | <0.001 |
| p valueb | 0.597 | 0.756 | − | − | |
| A1C (n = 355) | 9.8±1.4 | 6.2±0.7 | 3.5±1.5 | 3.3, 3.7 | <0.001 |
| A1C, % change | − | 35.1±10.2 | − | 34.0, 36.2 | |
| A1C change by T2D duration | |||||
| ≤5 years (n = 39) | 9.9±1.7 | 6.0±0.7 | 3.9±1.8 | 3.3, 4.5 | <0.001 |
| 6–10 years (n = 147) | 9.8±1.4 | 6.1±0.7 | 3.6±1.6 | 3.3, 3.9 | <0.001 |
| >10 years (n = 169) | 9.8±1.4 | 6.4±0.6 | 3.4±1.4 | 3.2, 3.6 | <0.001 |
| p valueb | 0.688 | <0.005 | − | − | |
| A1C change by T2D severity | |||||
| OAD (n = 47) | 8.5±0.3 | 5.8±0.5 | 2.7±0.6 | 2.5, 2.9 | <0.001 |
| Insulin (n = 39) | 10.1±1.5 | 6.4±0.7 | 3.8±1.5 | 3.3, 4.3 | <0.001 |
| OAD + insulin (n = 269) | 9.9±1.4 | 6.3±0.7 | 3.7±1.6 | 3.5, 3.9 | <0.001 |
| p valueb | <0.001 | <0.001 |
Results are based on patients with complete weight and A1C data at baseline and 24-month follow-up. BMI, body mass index; TWL, total weight loss; yrs, years; OAD, oral antidiabetic. a Paired-samples t test. b One-way ANOVA for independent samples.