Type 2 diabetes remission after Roux-en-Y gastric bypass (RYGB), sleeve gastrectomy (SG), and one anastomosis gastric bypass (OAGB): results of the longitudinal assessment of bariatric surgery study

Table 2 Postoperative changes after 1 and 3 years

Characteristic	Preoperative (n = 1351)	Postoperative 1 year (n = 1351)	P-value^a	Postoperative 3 years (n = 853)	P-value^b
BMI (kg/m²)	44.1 ± 6.9	30.2 ± 5.3	< 0.001	30.9 ± 4.7	< 0.001
Body Weight (Kg)	116.3 ± 22.2	79.3 ± 15.8	< 0.001	81.2 ± 15.8	< 0.001
Fasting blood sugar (mg/dl)	168.1 ± 63.4	93.7 ± 20.7	< 0.001	98.4 ± 22.4	< 0.001
HbA1c (%)	7.8 ± 1.8	5.7 ± 1.1	< 0.001	5.8 ± 1.2	< 0.001
Total cholesterol (mg/dl)	187.1 ± 47.7	171.9 ± 47.3	0.002	177.1 ± 40.2	0.002
Triglyceride (mg/dl)	196.3 ± 111.2	117.6 ± 62.9	< 0.001	107.6 ± 43.0	< 0.001
HDL-cholesterol (mg/dl)	44.6 ± 10.6	53.7 ± 20.6	< 0.001	52.3 ± 11.0	< 0.001
LDL- cholesterol (mg/dl)	106.5 ± 38.2	96.0 ± 38.1	0.041	103.6 ± 35.8	0.041
Insulin use, n (%)	385 (28.5)	72 (5.4)	< 0.001	40 (4.7)	< 0.001
Number of oral antidiabetic medications before surgery, n (%)
0 1 2 ≤3	271 (20.1) 793 (58.7) 241 (17.8) 46 (3.4)	1161 (85.9) 161 (11.9) 25 (1.9) 4 (0.3)	< 0.001	749 (87.8) 79 (9.3) 22 (2.6) 3 (0.3)	< 0.001

Data are shown as mean ± standard deviation for continuous variables and number (%) for categorical variables
^a Preoperative versus 1 year
^b Preoperative versus 3 years

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