Laparoscopic gastric bypass vs sleeve gastrectomy in obese Korean patients

Table 3 Anthropometric outcomes at last follow-up

	LSG (n = 104)	LRYGB (n = 236)	P value1
Mean follow-up period (mo)	21.0 (14.5-28.0)	18.0 (12.0-24.0)	0.012
At last follow up
Body weight (kg)	81.5 (64.0-98.5)	72.0 (63.0-85.0)	< 0.001
BMI (kg/m2)	28.5 (24.5-34.2)	27.3 (24.1-30.2)	0.014
%EWL (%)2	63.5 (44.8-88.0)	71.2 (53.7-91.1)	0.073
%TWL (%)	25.0 (19.4-32.9)	26.7 (20.0-32.4)	0.394
EWL < 50% at 1 year	18 (21.2)	23 (13.6)	0.148
Revision	5 (4.8)	1 (0.4)	0.011

Data are presented as n (%) or median (interquartile range).

¹Mann-Whitney U test for continuous variables and Pearson’s χ² test or Fisher’s exact test for categorical variables were applied;

²A BMI of 23 kg/m² was adopted as the upper limit of normal to calculate %EWL according to the World Health Organization recommended definition of obesity for Asians. LSG: Laparoscopic sleeve gastrectomy; LRYGB: Laparoscopic Roux-en-Y gastric bypass; BMI: Body mass index; EWL: Excess weight loss; TWL: Total weight loss.