Table 1.

Descriptive statistics of subjects (mean ± SD)

	RYGB	BPD/DS	Controls	p value	p value	p value
	(n = 15)	(n = 12)	(n = 17)	RYGB vs. controls	BPD/DS vs. controls	RYGB vs. BPD/DS
Gender, male/female	3:12	5:7	3:14	0.865	0.154	0.221
Age (years)	45.9 ± 5.8	44.5 ± 7.3	45.7 ± 8.4	0.996	0.899	0.868
Height (m)	1.69 ± 0.10	1.71 ± 0.10	1.70 ± 0.08	0.989	0.860	0.799
Weight (kg)	93.8 ± 12.9	91.8 ± 12.8	89.4 ± 10.9	0.561	0.861	0.901
Present BMI (kg/m2)	32.7 ± 1.7	31.2 ± 2.1	31.0 ± 2.5	0.091	0.988	0.173
Preoperative BMI (kg/m2)	45.1 ± 3.4	52.2 ± 4.3	N/A	N/A	N/A	<0.001

RYGB Roux-en-Y gastric bypass, BPD/DS duodenal switch, BMI body mass index