Incidence of end-stage renal disease following bariatric surgery in the Swedish Obese Subjects Study
Open accessAbstract
Background Obesity is a major public health problem leading to co-morbidities such as diabetes, hypertension and kidney failure. Bariatric surgery results in pronounced and maintained weight loss and prevention of obesity-related diseases and their complications. Most studies of bariatric surgery on kidney disease show improvements after surgery. However, long-term studies analyzing hard end-points are lacking. Here we report on the long-term effects of bariatric surgery compared to usual obesity care on incidence of end-stage renal disease (ESRD) alone and in combination with chronic kidney disease stage 4 (CKD4/ESRD). Methods 4047 patients were included in the Swedish Obese Subjects (SOS) study. Inclusion criteria were age 37-60 years and BMI ≥ 34 in men and BMI ≥ 38 in women. Patients in the bariatric surgery group (N = 2010) underwent banding (18%), vertical banded gastroplasty (69%), or gastric bypass (13%); controls (N = 2037) received usual obesity care. In this analysis, patients were followed up for a median time of 18 years. The incidence of ESRD and CKD4 was obtained by crosschecking the SOS database with the Swedish National Patient Register. Results During follow-up, ESRD occurred in 13 patients in the surgery group and in 26 patients in the control group (adjusted hazard ratio (HR) = 0.27; 95% CI 0.12-0.60; p = 0.001). The number of CKD4/ESRD events was 23 in the surgery group and 39 in the control group (adjusted HR = 0.33; 95% CI 0.18-0.62; p < 0.001). In both analyses, bariatric surgery had a more favorable effect in patients with baseline serum insulin levels above median compared to those with lower insulin levels (interaction p = 0.010). Treatment benefit of bariatric surgery was also greater in patients with macroalbuminuria at baseline compared to those without macroalbuminuria (interaction p < 0.001). Conclusions Our study showed for the first time that bariatric surgery is associated with a long-term protection against ESRD and CKD4/ESRD.
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The SOS study reported reduced end-stage renal disease incidence after bariatric surgery (adjusted HR = 0.27; 95% CI 0.12-0.60; p = 0.001).
“The SOS study reported reduced end-stage renal disease (ESRD) incidence after surgery (adjusted hazard ratio (HR) = 0.27; 95% CI 0.12–0.60; p = 0.001) [81].”
From Precision obesity medicine: A phenotype-guided framework for pharmacologic therapy across the lifespan (2025) · cites this paper as [81]
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Tuccinardi, D., Masi, D., Watanabe, M., Zanghi Buffi, V., De Domenico, F., Berti, S., Cipriani, V., Manco, M., Manfrini, S., & Pagotto, U. (2025) · Journal of Endocrinological Investigation · doi:10.1007/s40618-025-02700-7 · Cited by 29 · see citing works
- Authors
- Shulman, A., Peltonen, M., Sjöström, C. D., Andersson-Assarsson, J. C., Taube, M., Sjöholm, K., le Roux, C. W., Carlsson, L. M. S., & Svensson, P.-A.
- Affiliations
- University of Gothenburg (SE)
- Finnish Institute for Health and Welfare (FI)
- AstraZeneca (Sweden) (SE)
- Corresponding author
- Svensson, P.-A.
- ORCID
- Venue
- International Journal of Obesity
- Published
- 2018-02-26
- Volume
- 42
- Issue
- 5
- Pages
- 964-973
- ISSN
- 0307-0565 (ISSN-L)
- 1476-5497
- PMC
- PMC6019553
- OpenAlex
- W2789862618
- Cited by
- 86
- References
- 3
- Citations by year
- 2026: 4 · 2025: 10 · 2024: 5 · 2023: 8 · 2022: 13 · 2021: 15 · 2020: 14 · 2019: 14 · 2018: 3
- FWCI
- 11.71
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Licence
- www.springer.com/tdm (tdm)
- Locations
- International Journal of Obesity (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- STM:n Hallinnonalan avoin julkaisuarkisto (Julkari) (submittedVersion)
- Funders
- National Institute of Diabetes and Digestive and Kidney Diseases (R01DK105948)
- Topics
- Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
- Health Sciences › Medicine › Nephrology › Chronic Kidney Disease and Diabetes
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
- Keywords
- bariatric surgery, end-stage renal disease, chronic kidney disease stage 4, obesity, kidney failure prevention, insulin levels, macroalbuminuria, gastric bypass, vertical banded gastroplasty, gastric banding, Swedish Obese Subjects study, long-term outcomes
- MeSH terms
- Adult, Female, Humans, Kidney Failure, Chronic, Male, Middle Aged, Obesity, Postoperative Complications, Sweden, Bariatric Surgery
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