Mean weight [kg]
Study	Outcomes	RYGB	LSG	P value
Keidar 2013	Weight kg at 12 months	87.8 (14.1)	84.1 (11.8)	ns
Keidar 2013
Keidar 2013
Lee 2011	Weight kg at 12 months, mean (SD)	60.7 (10.1)	65.7 (7.9)	P = 0.03
Lee 2011
Lee 2011
Nogués 2010	weight at 12 months, kg, mean (SD)	71.4 (8.2)	76.5 (8.2)	NS
Nogués 2010
Nogués 2010
Paluszkiewicz 2012	Weight at 12 months, kg, mean (SD)	96.8 (17.4)	91.7 (17.4)	ns
Paluszkiewicz 2012
Paluszkiewicz 2012
Peterli 2012	Weight at 12 months, kg, mean (SD)	84.7 (16.8) (n=110)	86.9 (16.9) (n=107)	P = 0.34
Peterli 2012	Weight at 2 years, kg, mean (SD)	85.8 (17.9) (n=52)	87.3 (14.8) (n=60)	P = 0.61
Peterli 2012	Weight at 3 years, kg, mean (SD)	90.3 (21.0) (n=32)	91.3 (18.1) (n=38)	P = 0.83
Schauer 2012	Weight at 12 months, kg, mean (SD)	77.3 (13.0)	75.5 (12.9)	P = 0.50
Schauer 2012
Schauer 2012