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Factors Associated With Weight Loss After Gastric Bypass
Open accessAbstract
BACKGROUND: Gastric bypass (GBP) is the most common operation performed in the United States for morbid obesity. However, weight loss is poor in 10% to 15% of patients. We sought to determine the independent factors associated with poor weight loss after GBP. DESIGN: Prospective cohort study. We examined demographic, operative, and follow-up data by means of multivariate analysis. Variables investigated were age, sex, race, marital and insurance status, initial weight and body mass index (BMI) (calculated as weight in kilograms divided by height in meters squared), comorbidities (diabetes mellitus, hypertension, joint disease, sleep apnea, hyperlipidemia, and psychiatric disease), laparoscopic vs open surgery, gastric pouch area, gastrojejunostomy technique, and alimentary limb length. SETTING: University tertiary referral center. PATIENTS: All patients at our institution who underwent GBP from January 1, 2003, through July 30, 2006. MAIN OUTCOME MEASURES: Weight loss at 12 months defined as poor (< or =40% excess weight loss) or good (>40% excess weight loss). RESULTS: Follow-up data at 12 months were available for 310 of the 361 patients (85.9%) undergoing GBP during the study period. Mean preoperative BMI was 52 (range, 36-108). Mean BMI and excess weight loss at follow-up were 34 (range, 17-74) and 60% (range, 8%-117%), respectively. Thirty-eight patients (12.3%) had poor weight loss. Of the 4 variables associated with poor weight loss in the univariate analysis (greater initial weight, diabetes, open approach, and larger pouch size), only diabetes (odds ratio, 3.09; 95% confidence interval, 1.35-7.09 [P = .007]) and larger pouch size (odds ratio, 2.77;95% confidence interval, 1.81-4.22 [P <.001]) remained after the multivariate analysis. CONCLUSIONS: Gastric bypass results in substantial weight loss in most patients. Diabetes and larger pouch size are independently associated with poor weight loss after GBP.
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“As many as 15% to 20% fail to lose weight or regain the lost weight [114, 115].”
From Bariatric surgery: remission of inflammation, cardiometabolic benefits, and common adverse effects (2020) · cites this paper as [115]
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“Greater preoperative BMI was also significantly associated with suboptimal WL [78, 79].”
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Turner, R. C., Fox, C., Matthews, McElroy, H. H., Cull, C. A., Holman, R. R., Neil, P., Hadden, D. R., Wright, D., Manley, E., et al. (1998) · The Lancet · Cited by 8,419
Bariatric Surgery: A Systematic Review and Meta-analysis
Buchwald, H., Avidor, Y., Braunwald, E., Jensen, M. D., Pories, W., Fahrbach, K., & Schoelles, K. (2004) · JAMA · doi:10.1001/jama.292.14.1724 · Cited by 6,800
Effects of Bariatric Surgery on Mortality in Swedish Obese Subjects
Sjöström, L., Narbro, K., Sjöström, C. D., Karason, K., Larsson, B., Wedel, H., Lystig, T., Sullivan, M., Bouchard, C., Carlsson, B., et al. (2007) · New England Journal of Medicine · doi:10.1056/nejmoa066254 · Cited by 4,668
Lifestyle, diabetes, and cardiovascular risk factors 10 years after bariatric surgery
Sjöström, L., Lindroos, A.-K., Peltonen, M., Torgerson, J., Bouchard, C., Carlsson, B., Dahlgren, S., Larsson, B., Narbro, K., Sjöström, C. D., et al. (2004) · New England Journal of Medicine · doi:10.1056/nejmoa035622 · Cited by 4,457
Obesity and insulin resistance
Kahn, B. B., & Flier, J. S. (2000) · Journal of Clinical Investigation · doi:10.1172/jci10842 · Cited by 3,345
Long-term mortality after gastric bypass surgery
Adams, T. D., Gress, R. E., Smith, S. C., Halverson, R. C., Simper, S. C., Rosamond, W. D., LaMonte, M. J., Stroup, A. M., & Hunt, S. C. (2007) · New England Journal of Medicine · doi:10.1056/nejmoa066603 · Cited by 2,572
Pories, W. J., Swanson, M. S., MacDonald, K. G., Long, S. B., Morris, P. G., Brown, B. M., Barakat, H. A., deRamon, R. A., Israel, G., Dolezal, J. M., et al. (1995) · Annals of Surgery · doi:10.1097/00000658-199509000-00011 · Cited by 2,293
Yki-Järvinen, H. (2004) · New England Journal of Medicine · doi:10.1056/nejmra041001 · Cited by 1,830
Surgery decreases long-term mortality, morbidity, and health care use in morbidly obese patients
Christou, N. V., Sampalis, J. S., Liberman, M., Look, D., Auger, S., McLean, A. P. H., & MacLean, L. D. (2004) · Annals of Surgery · doi:10.1097/01.sla.0000137343.63376.19 · Cited by 1,288
Cited by
Sorted by citations
Items 101–172 of 172
Hörchner, R., & Schweitzer, D. H. (2013) · ISRN Obesity · doi:10.1155/2013/943423 · Cited by 8
Reiber, B. M. M., Tenhagen, M., Hunfeld, M. A. J. M., Cense, H. A., & Demirkıran, A. (2018) · Obesity Surgery · doi:10.1007/s11695-018-3352-3 · Cited by 8
Shinagawa, A., Ahrendt, A. J., Epstein, E. M., Lambin, J.-H., Lambin, R., Cox, M., Gevorkian, J., Shoenberger, D., & Sasse, K. C. (2020) · Obesity Surgery · doi:10.1007/s11695-020-04779-8 · Cited by 7
Rolland, C., Lula, S., Jenner, C., Dyson, L., Macdonald, I. A., Johnston, K. L., & Broom, J. I. (2013) · Clinical Obesity · doi:10.1111/cob.12029 · Cited by 7
[Factors related with weight loss in a cohort of obese patients after gastric bypass].
Villa, A. G., López, A., Calleja, K. G. M., Gómez, L. M. L., Gómez, J. R. M., & Escobar, J. M. T. (2013) · PubMed · doi:10.3305/nh.2013.28.3.6176 · Cited by 7
Citrullinemia stimulation test in the evaluation of the intestinal function.
Costa, B. P., Serôdio, M., Simões, M., Veríssimo, C. S., Sousa, F. C. E., & Grazina, M. M. (2013) · PubMed · doi:10.3305/nh.2013.28.1.6243 · Cited by 6
The impact of family members on weight loss after sleeve gastrectomy
Shanti, H., & Obeidat, F. (2016) · Surgery for Obesity and Related Diseases · doi:10.1016/j.soard.2016.04.002 · Cited by 6
Coleman, C. D., Kiel, J., Mitola, A. H., & Arterburn, L. M. (2017) · Nutrition and Diabetes · doi:10.1038/nutd.2017.32 · Cited by 8
Wijngaarden, L. H., Reiber, B. M. M., Yousufzai, F., Demirkiran, A., & Klaassen, R. A. (2021) · Surgical Endoscopy · doi:10.1007/s00464-021-08671-z · Cited by 6
Omotosho, P. A., Rodriguez, J. A., Jain-Spangler, K., Mor, A., & Torquati, A. (2015) · Surgery for Obesity and Related Diseases · doi:10.1016/j.soard.2015.10.078 · Cited by 6
Factors involved in body weight loss and its maintenance in morbidly obese inpatients
Tadokoro, R., Iida, T., Mikura, K., Imai, H., Murai, N., Kaji, M., Hashizume, M., Kigawa, Y., Endo, K., Iizaka, T., et al. (2019) · Diabetology International · doi:10.1007/s13340-019-00403-y · Cited by 6
Reiber, B. M. M., Tenhagen, M., Barendregt, R., Mekel, M. P., Cense, H. A., & Demirkiran, A. (2020) · Surgery for Obesity and Related Diseases · doi:10.1016/j.soard.2020.05.026 · Cited by 6
Ten-Year Weight Regain after Bariatric Surgery: Prevalence, Predictors, and Metabolic Impact
Ribeiro, S. L., Ferreira, P. G., Lima, B., Moreno, T., Gonçalves, J., Ferreira, H. U., Meira, I., Menino, J., Leite, A. R., Borges‐Canha, M., et al. (2025) · Obesity Facts · doi:10.1159/000549498 · Cited by 5
Benaiges, D., Bisbe, M., Pedro‐Botet, J., de Vargas‐Machuca, A., Ramón, J. M., Pera, M., Villatoro, M., Fontané, L., Julià, H., Climent, E., et al. (2020) · Journal of Clinical Medicine · doi:10.3390/jcm9103193 · Cited by 5
Morales, E., Xie, L., Meneghini, L., Cruz-Munoz, N. F. D. L., Almandoz, J. P., Mathew, S. M., Schneider, B. E., & Messiah, S. E. (2020) · Obesity · doi:10.1002/oby.23044 · Cited by 5
The Effect of Marital Status on Weight Loss After Bariatric Surgery is Moderated by Depression
Pohle-Krauza, R. J., McCarroll, M. L., & Pasini, D. (2011) · Journal of Obesity & Weight loss Therapy · doi:10.4172/2165-7904.1000104 · Cited by 5
Bariatric surgery‐induced weight loss in patients with and without type 2 diabetes mellitus
CARVALHO, T. A., Ronsoni, M. F., Hohl, A., & van de Sande‐Lee, S. (2020) · Clinical Obesity · doi:10.1111/cob.12356 · Cited by 6
Adipositaschirurgie und ihre Komplikationen
Karpitschka, M., Lang, R., Jauch, K. ‐., Reiser, M., & Weckbach, S. (2011) · Der Radiologe · doi:10.1007/s00117-010-2086-6 · Cited by 4
Coughlin, J. W., Guarda, Á. S., Clark, J. M., Furtado, M. M., Steele, K. E., & Heinberg, L. J. (2013) · Journal of Clinical Psychology in Medical Settings · doi:10.1007/s10880-012-9358-4 · Cited by 4
The Long and Narrow Gastric Pouch for Laparoscopic Roux-en-Y Gastric Bypass
Iannelli, A., Kassir, R., & Gugenheim, J. (2014) · Obesity Surgery · doi:10.1007/s11695-014-1378-8 · Cited by 4
Factors Associated With Weight Loss After Gastric Bypass
Ness-Abramof, R. (2009) · Yearbook of Endocrinology · doi:10.1016/s0084-3741(09)79357-6 · Cited by 4
Predictors of inadequate weight loss after laparoscopic sleeve gastrectomy
Almezaien, O. (2022) · Al-Azhar Assiut Medical Journal · doi:10.4103/azmj.azmj_131_21 · Cited by 3
Haghighat, N., Kamran, H., Moaddeli, M. N., Hosseini, B., Karimi, A. N., Hesameddini, I., Amini, M., Hosseini, S. V., Vahidi, A., & Moeinvaziri, N. (2022) · Annals of Medicine and Surgery · doi:10.1016/j.amsu.2022.104914 · Cited by 3
Mechanisms of Action of Bariatric Surgical Procedures
Neff, K., & le Roux, C. W. (2015) · Springer eBooks · doi:10.1007/978-3-319-04343-2_54 · Cited by 3
Weight Recidivism After Bariatric Surgery: Evaluation and Implications
Obeid, N. R., Altieri, M. S., & Pryor, A. D. (2018) · Springer eBooks · doi:10.1007/978-3-319-71282-6_35 · Cited by 3
Global Technical Variations in Roux-en-Y Gastric Bypass: A Worldwide Survey Among IFSO Members
Hany, M., Zidan, M. H. E.-D., Altabbaa, H., Amgad, A., Al-Momani, H., Mosaad, A. A., Bessa, A., Hanna, F., Zayed, N., Hassan, A., et al. (2026) · Obesity Surgery · doi:10.1007/s11695-026-08724-z · Cited by 3
Karakelides, H., & Collazo–Clavell, M. L. (2010) · Cambridge University Press eBooks · doi:10.1017/cbo9780511676307.010 · Cited by 2
Inadequate Weight Loss after Gastric Bypass and Sleeve Gastrectomy
Shah, M. M., & Brethauer, S. A. (2016) · Springer eBooks · doi:10.1007/978-3-319-27114-9_19 · Cited by 2
Factors Associated With Weight Loss After Gastric Bypass
Ness-Abramof, R. (2009) · Yearbook of Medicine · doi:10.1016/s0084-3873(09)79499-4 · Cited by 2
Mechanisms of Action of Different Bariatric Surgical Procedures
Neff, K., & le Roux, C. W. (2023) · Springer eBooks · doi:10.1007/978-3-030-60596-4_103 · Cited by 2
Drinking-Water Criteria Document for polychlorinated biphenyls (PCBs) (final), April 1988
Barsotti, D. A., Olson, J., Pellizzari, E. D., Hee, S. S. Q., & Safe, S. H. (1988) · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · Cited by 2
Patel, S., Chen, J., Cowan, B., Yin, J., Schaefer, C. A., Dutta, S., Mostaedi, R., & Choquet, H. (2024) · Annals of Surgery Open · doi:10.1097/as9.0000000000000437 · Cited by 1
Roux-en-Y Gastric Bypass: Revisiting Gastric Pouch Length Variability in Search of Consensus
Ammar, M., Ibrahim, A., Aly, M. A., Eltaia, M., & Zidan, M. H. E.-D. (2025) · Obesity Surgery · doi:10.1007/s11695-025-07758-z · Cited by 1
What Really Matters in Weight Loss after Bariatric Surgery – 10 Years Follow-Up (BARI-10 -POL Study)
Czerwińska, A., Karpińska, I. A., Zarzycki, P., Matyja, M., Dowgiałło‐Gornowicz, N., Jaworski, P., & Major, P. (2025) · Obesity Surgery · doi:10.1007/s11695-025-08385-4 · Cited by 1
Preparation and pre-operative evaluation/management
Alvarez, A., Brodsky, J. B., Lemmens, H. J. M., & Morton, J. M. (2010) · Cambridge University Press eBooks · doi:10.1017/cbo9780511676307.007 · Cited by 1
Budak, A. R. (2012) · Bariatric Nursing and Surgical Patient Care · doi:10.1089/bar.2012.9994 · Cited by 1
de Fátima, P., Novais, S., Rasera, I., & Leite (2010) · Cited by 1
Courcoulas, A. P., Christian, N. J., Dakin, G. F., Dellinger, E. P., Flum, D. R., Mitchell, J. E., Pories, W. J., Spaniolas, K., Steffen, K. J., Wolfe, B. M., et al. (2015) · Cited by 1
Alvarez-Bermudez, M. D., Martín‐Reyes, F., Ocaña-Wilhelmi, L., Moreno‐Ruiz, F. J., Torres, J. A., Fernández‐García, D., Valdés, S., Moreno-Morales, N., García‐Fuentes, E., Tinahones, F. J., et al. (2020) · Journal of Clinical Medicine · doi:10.3390/jcm9113537 · Cited by 1
CHANGES IN EATING BEHAVIOURS FOLLOWING BARIATRIC SURGERY: A PROSPECTIVE STUDY
Subramaniam, K., Low, W.-Y., Lau, P. C., Chinna, K., Kosai, N. R., Taher, M. M., & Rajan, R. (2021) · Journal of Experimental Biology and Agricultural Sciences · doi:10.18006/2021.9(spl-1-gcsgd_2020).s101.s109 · Cited by 1
Behr, S. C., Campos, G. M., & Westphalen, A. C. (2012) · Applied Radiology · doi:10.37549/ar1914 · Cited by 1
Comparative study between sleeve gastrectomy and gastric bypass in morbid obese patient
Abdel-Razik, M. A. A., Rabia, O. M., & Mohammed, H. A. E. M. (2021) · The Scientific Journal of Al-Azhar Medical Faculty Girls · doi:10.4103/sjamf.sjamf_81_20 · Cited by 1
Endoscopic Treatment of Obesity
Sullivan, S. A. (2015) · Springer eBooks · doi:10.1007/978-1-4939-2032-7_4 · Cited by 1
[Laparoscopic Roux-en-Y gastric bypass surgery for treatment of type 2 diabetes mellitus].
Yang, J., Wang, C., Huang, J., Hu, Y., Li, J., Pan, Y.-L., Liu, X., Yu, C.-L., Shen, Y., & Yu, H. (2010) · PubMed · Cited by 1
Gastric Bypass: Mechanisms of Functioning
le Roux, C. W., & Sinclair, P. (2020) · Springer eBooks · doi:10.1007/978-3-030-28803-7_2 · Cited by 1
Hany, M., Mohammad, M. K. H., Hafeez, N. A. A. A. E., Agayby, A. S. S., & Torensma, B. (2022) · Obesity Pillars · doi:10.1016/j.obpill.2022.100029 · Cited by 1
Is body mass index an adequate measure for individualized clinical decision making?
Campos, G. M. (2013) · Surgery for Obesity and Related Diseases · doi:10.1016/j.soard.2013.01.002 · Cited by 1
Barhouch, A. S. (2015) · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas)
Genomic and Clinical Predictors Associated with Long-Term Success After Bariatric Surgery
Gerhard, G. S., & Wood, G. C. (2014) · Springer eBooks · doi:10.1007/978-1-4939-1197-4_20
Revisions for Failed Weight Loss
Obinwanne, K. M., & Kothari, S. N. (2013) · Current Surgery Reports · doi:10.1007/s40137-013-0022-1
Variability of weight loss results with Roux-en-Y gastric bypass
Funk, L. M., & Campos, G. M. (2014) · Surgery for Obesity and Related Diseases · doi:10.1016/j.soard.2014.02.023
Metabolic Predictors of Weight Loss After Bariatric Surgery
Faria, G. R. (2016) · Elsevier eBooks · doi:10.1016/b978-0-12-804011-9.00041-8
Brunaldi, V. (2018) · Digital Library of Theses and Dissertations (Universidade de São Paulo) · doi:10.11606/d.5.2018.tde-05062018-105600
Butt, M., Zickgraf, H. F., & Rigby, A. (2020) · Surgery for Obesity and Related Diseases · doi:10.1016/j.soard.2020.07.027
Does Resizing the Gastric Pouch Aid in Weight Loss?
McCormack, M. S., & Ujiki, M. B. (2020) · Difficult decisions in surgery: an evidence-based approach · doi:10.1007/978-3-030-55329-6_31
Suboptimal Weight Loss and Weight Regain: Is it Prime Time for Pharmacotherapy?
Pannain, S. (2020) · Difficult decisions in surgery: an evidence-based approach · doi:10.1007/978-3-030-55329-6_30
Mechanisms of Action of Different Bariatric Surgical Procedures
Neff, K., & le Roux, C. W. (2021) · Springer eBooks · doi:10.1007/978-3-030-54064-7_103-1
Eating Behaviour Predicts Weight Loss Six Months after Bariatric Surgery: A Longitudinal Study
Subramaniam, K., Low, W. Y., Lau, P. C., Chin, K. F., Chinna, K., Kosai, N. R., Taher, M. M., & Rajan, R. (2020) · Vide Leaf, Hyderabad eBooks · doi:10.37247/pan.1.2020.8
Benotti, P. N. (2014) · Springer eBooks · doi:10.1007/978-1-4939-0906-3_11
(2012) · Elsevier eBooks · doi:10.1016/b978-0-323-08373-7.00024-8
(2009) · Obesity Management · doi:10.1089/obe.2009.0101
Tansey, D. J., & le Roux, C. W. (2023) · Springer eBooks · doi:10.1007/978-3-031-25828-2_62
Chirurgie: Oberer Gl-Trakt/Leber
Lorenz, D. (2010) · Springer eBooks · doi:10.1007/978-3-642-11635-3_4
Gasa, M. (2013) · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas)
Abulfaraj, M. W., Klar, A., Sucandy, I., & Antanavicius, G. (2015) · Surgery for Obesity and Related Diseases · doi:10.1016/j.soard.2015.06.006
Asencio-Diaz, F. A., Aguirre-Paez, S., Ravell, M. C.-N., & Romero, R. J. (2026) · Obesity Surgery · doi:10.1007/s11695-026-08780-5
Stepaniak, U., Ambroży, U., Kozela, M., Karpińska, I. A., Major, P., & Matyja, M. (2026) · Journal of Obesity · doi:10.1155/jobe/8878737
Aizan, L. N. B., Syed, A. A., & Alkhaffaf, B. H. (2026) · Obesity Surgery · doi:10.1007/s11695-026-08900-1
Metadata
- Authors
- Campos, G. M.
- Affiliations
- University of California, San Francisco (US)
- Corresponding author
- Campos, Guilherme M.
- ORCID
- Campos, Guilherme M.
- Venue
- Archives of Surgery
- Publisher
- American Medical Association (AMA)
- Published
- 2008-09-15
- Volume
- 143
- Issue
- 9
- Pages
- 877
- ISSN
- 0004-0010 (ISSN-L)
- PMC
- PMC2747804
- OpenAlex
- W1998092898
- Cited by
- 172
- References
- 63
- Citations by year
- 2026: 4 · 2025: 4 · 2024: 3 · 2023: 6 · 2022: 7 · 2021: 10 · 2020: 18 · 2019: 8 · 2018: 5 · 2017: 8 · 2016: 10 · 2015: 13 · 2014: 7 · 2013: 20 · 2012: 10
- FWCI
- 13.35
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Archives of Surgery (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- University of California, San Francisco
- National Institute of Biomedical Imaging and Bioengineering (T32EB001631)
- National Center for Research Resources (KL2RR024130)
- Topics
- Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
- Health Sciences › Medicine › Surgery › Body Contouring and Surgery
- Health Sciences › Medicine › Surgery › Minimally Invasive Surgical Techniques
- Keywords
- gastric bypass, morbid obesity, weight loss, excess weight loss, diabetes mellitus, bariatric surgery outcomes
- MeSH terms
- Adult, Aged, Diabetes Mellitus, Female, Humans, Middle Aged, Obesity, Morbid, Postoperative Period, Gastric Bypass, Weight Loss, Comorbidity, Body Mass Index, Multivariate Analysis
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