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. 2022 Oct 26;22:260. doi: 10.1186/s12902-022-01171-8

Table 2.

Postoperative changes after 1 and 3 years

Characteristic Preoperative (n = 1351) Postoperative 1 year (n = 1351) P-valuea Postoperative 3 years (n = 853) P-valueb
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