Comparison 3. Laparoscopic gastric bypass versus laparoscopic sleeve gastrectomy.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Mean BMI [kg/m2]			Other data	No numeric data
2 Mean BMI at study end	6	353	Mean Difference (IV, Random, 95% CI)	‐0.23 [‐1.78, 1.33]
3 BMI reduction			Other data	No numeric data
4 BMI reduction at 12 months	2	114	Mean Difference (IV, Random, 95% CI)	1.79 [‐0.34, 3.93]
5 Mean weight [kg]			Other data	No numeric data
6 Mean weight at study end	5	293	Mean Difference (IV, Random, 95% CI)	1.23 [‐2.03, 4.48]
7 Weight loss [kg]			Other data	No numeric data
8 Mean weight loss at 12 months	3	146	Mean Difference (IV, Random, 95% CI)	4.09 [‐3.31, 11.49]
9 Excess weight loss [%]			Other data	No numeric data
10 Other weight change data			Other data	No numeric data
11 Health related quality of life			Other data	No numeric data
12 Comorbidities: diabetes			Other data	No numeric data
13 Comorbidities: hypertension			Other data	No numeric data
14 Comorbidities: dyslipidaemia			Other data	No numeric data
15 Comorbidities: metabolic syndrome			Other data	No numeric data
16 Comorbidities: sleep			Other data	No numeric data
17 Comorbidities: other co‐morbidities			Other data	No numeric data