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. 2022 Sep 7;15(5):717–729. doi: 10.1159/000526718

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.