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. Author manuscript; available in PMC: 2026 Jun 23.
Published in final edited form as: Surgery. 2012 Sep 6;152(4):758–767. doi: 10.1016/j.surg.2012.07.023

Table III.

Adverse symptoms

Percent experiencing symptom (n)
Symptom DS/BD (N = 173) RYGB (N = 136) P value
Nausea .08
 Never 56.7 (98) 50.7 (69)
 Yearly 15.6 (27) 17.9 (24)
 Monthly 8.3 (14) 15.7 (21)
 Weekly 8.3 (14) 10.8 (15)
 Daily 11.1 (19) 4.4 (6)
Vomiting .82
 Never 57.2 (99) 57.5 (78)
 Yearly 20.6 (36) 17.2 (23)
 Monthly 9.4 (16) 13.4 (18)
 Weekly 8.9 (15) 10.0 (14)
 Daily 3.9 (7) 2.2 (3)
Constipation .003
 Never 69.6 (120) 53.4 (73)
 Yearly 19.3 (33) 15.8 (21)
 Monthly 5.5 (9) 14.3 (19)
 Weekly 4.4 (8) 14.3 (19)
 Daily 1.1 (2) 2.2 (3)
Loose stools <.001
 Never 13.8 (24) 40.3 (55)
 Yearly 6.3 (11) 13.4 (18)
 Monthly 4.6 (8) 9.7 (13)
 Weekly 21.6 (37) 21.6 (29)
 Daily 58.6 (101) 14.9 (20)
Bloating <.001
 Never 32.6 (56) 59.1 (80)
 Yearly 6.1 (10) 11.4 (15)
 Monthly 7.7 (13) 9.8 (13)
 Weekly 22.1 (38) 15.2 (21)
 Daily 31.5 (54) 4.5 (6)
Heartburn .03
 Never 51.9 (90) 70.7 (96)
 Yearly 11.0 (19) 9.8 (13)
 Monthly 9.9 (17) 6.0 (8)
 Weekly 21.5 (37) 7.5 (10)
 Daily 14.9 (26) 6.0 (8)

DS/BD, Duodenal switch/biliopancreatic diversion; RYGB, Roux-en-Y gastric bypass.