Table 2: Overall clinical and biological data at 1- and 3-year followup.

VariableBefore surgery1 year after surgery3 years after surgery value

BMI kg/m245.0 ± 6.829.7 ± 6.531.6 ± 4.4<.0001
HbA1c %5.8 ± 1.15.3 ± 0.55.4 ± 1.2<.0001
AST level U/L22.7 ± 11.918.14 ± 9.920.0 ± 10.8<.0001
ALT level U/L34.2 ± 21.219.8 ± 14.823.01 ± 17.2<.0001
Triglyceride level mmol/L1.6 ± 1.11.0 ± 0.41.0 ± 0.5<.0001
Cholesterol level mmol/L5.1 ± 1.15.1 ± 1.05.1 ± 1.3NS
LDL level mmol/L3.1 ± 0.83.1 ± 1.03.1 ± 1.6NS
HDL level mmol/L1.3 ± 0.51.26 ± 0.51.6 ± 0.4<.0001

Figures presented as mean ± standard deviation; value determined with Kruskal-Wallis test.