Table 2.

Multiple comparisons in contrast analysis. Column 1: Inter-group comparisons between HF/HF, CD/HF, HF/CD, CD/CD groups DJOS versus SHAM; Column 2: Intragroup comparisons between HF/HF, CD/HF, HF/CD, CD/CD groups after DJOS surgery; Column 3: Intragroup comparisons between HF/HF, CD/HF, HF/CD, CD/CD groups after SHAM surgery. Post hoc analysis, statistical significance was set at a p < 0.05.

Post hoc	DJOS versus SHAM				DJOS						SHAM
	1: HF/HF	2: HF/CD	3: CD/HF	4: CD/CD	1 versus 2	1 versus 3	1 versus 4	2 versus 3	2 versus 4	3 versus 4	1 versus 2	1 versus 3	1 versus 4	2 versus 3	2 versus 4	3 versus 4
GR (IU/g)	<0.01	<0.05	0.573	<0.001	<0.001	<0.05	<0.001	<0.01	<0.001	<0.001	0.993	0.090	0.333	0.104	0.355	0.472
CAT (IU/g)	<0.001	<0.001	<0.001	<0.01	0.479	<0.001	0.059	<0.01	0.227	<0.05	0.488	<0.05	<0.001	0.195	<0.001	<0.001
GPX (IU/g)	<0.05	<0.001	<0.001	<0.01	<0.05	<0.001	<0.05	<0.05	<0.001	<0.001	<0.001	<0.001	<0.01	<0.001	0.118	<0.001
GST (IU/g)	<0.01	0.799	0.909	<0.01	0.068	<0.05	<0.05	0.721	<0.001	<0.001	0.145	0.559	0.070	0.469	0.622	0.227
Total SOD (NU/mg)	0.072	<0.01	<0.01	0.776	0.259	<0.001	<0.05	<0.001	0.141	<0.001	0.862	0.694	<0.001	0.585	<0.001	<0.001
MnSOD (NU/mg)	0.118	0.193	0.780	<0.01	<0.01	<0.01	0.413	0.656	<0.05	<0.01	<0.01	<0.05	<0.05	0.557	0.692	0.848
CuZnSOD (NU/mg)	<0.001	<0.01	<0.001	<0.05	<0.05	<0.001	<0.001	0.062	<0.001	<0.01	<0.001	<0.001	<0.001	<0.001	0.389	<0.001
MDA (μmol/g)	0.559	<0.001	0.329	<0.01	<0.05	<0.01	<0.01	0.821	<0.001	<0.001	<0.001	<0.01	0.372	<0.05	<0.001	<0.001

GR: glutathione reductase; CAT: catalase; GPX: glutathione peroxidase; SOD: total superoxide dismutase; GST: glutathione-S-transferase; MnSOD: Mn superoxide dismutase; ZnSOD: Zn superoxide dismutase; MDA: malondialdehyde; DJOS: duodenal-jejunal omega switch surgery; HF: high-fat diet; CD: control diet; HF/HF, CD/HF, HF/CD, CD/CD: type of diet 8 weeks before/8 weeks after surgery.