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# Bariatric procedures linked to fewer diabetes complications and deaths than obesity drugs
- URL: https://www.coios.me/bariatric-procedures-linked-to-fewer-diabetes-complications/
- Published: 2026-11-07T13:15:08.000Z
- Updated: 2026-11-07T17:41:09.000Z
- Description: Bariatric procedures were linked to lower 5-year nephropathy, retinopathy, cardiovascular events and deaths than obesity management medications.
- Author: Daniel Ryan
- Tags: Health today, Obesity, diabetes and GLP-1, #peer-reviewed, #refines, #item, #source-2026-11, #score-75

The study compared adults with obesity and type 2 diabetes who had bariatric procedures or started obesity management medications. Of 379 858 adults, 32 401 had procedures and 347 457 started medications, balanced by overlap weighting. At 5 years, procedures were linked to less nephropathy (4.5% versus 8.3%) and retinopathy (3.6% versus 7.4%). Major adverse cardiovascular events (6.1% versus 8.1%) and all-cause mortality (2.1% versus 3.7%) were also lower. At 1 year, mean total weight loss was 25.4% versus 6.4%, and HbA1c normalisation 76.7% versus 47.2%. The design is observational, so unmeasured differences between groups may remain.

*Why it is interesting: Incretin-based drugs now offer an alternative to bariatric procedures, so comparisons on hard outcomes matter. Here the procedures' advantage extended beyond weight to kidney, eye and cardiovascular events and death.*

Source

[British Journal of Surgery, 3 November 2026](https://doi.org/10.1093/bjs/znag139?ref=coios.me)

Paper

Cardiovascular and diabetes outcomes after metabolic bariatric surgery versus obesity management medications: nationwide overlap-weighted cohort study of 379 858 patients

Authors

Gillikin AP, Rabinovich EP, Nimeri AA, Tavakkoli A, Shin TH

DOI

10.1093/bjs/znag139

Type

Peer-reviewed article

Design

Nationwide overlap-weighted retrospective cohort, 379 858 adults with obesity and T2D (32 401 surgery, 347 457 obesity medications), median follow-up 4.3-4.9 years

Verdict

Refines prior evidence

Driver

[Obesity, diabetes and GLP-1](https://www.coios.me/d-obesity-diabetes/)