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. 2014 Aug 8;2014(8):CD003641. doi: 10.1002/14651858.CD003641.pub4

4.4. Analysis.

Comparison 4 Gastric bypass versus biliopancreatic diversion with duodenal switch, Outcome 4 Excess BMI loss [%].

Excess BMI loss [%]
Study Outcome RYGB BPD+switch P value
Aasheim 2009 % excess BMI lost at 1 year, mean (SD) 54.4 (12.8) 74.8 (11.2) P < 0.001
Hedberg 2012 % excess BMI lost at 4 years, mean (SD) 51 (23) 80 (15) P < 0.001