Research

Mixed

Bariatric surgery is associated with a significantly lower risk of incident coronary artery disease (CAD) compared to usual medical care in patients with type 2 diabetes and severe obesity.

For patients with severe obesity and type 2 diabetes, bariatric surgery is associated with a significantly lower risk of coronary artery disease (heart attacks, angina, interventions) compared to standard medical care.

ModerateSupportsHIGH confidence
bariatric surgery was associated with... a lower incidence of coronary artery disease (1.6% in the surgical group vs 2.8% in the nonsurgical group; hazard ratio, 0.64 [95% CI, 0.42-0.99]).
David Fisher et al. · JAMA · 2018

Why this rating

Retrospective matched cohort study.

Source

Association Between Bariatric Surgery and Macrovascular Disease Outcomes in Patients With Type 2 Diabetes and Severe Obesity

David Fisher et al. · JAMA · 2018

DOI 10.1001/jama.2018.14619

cohort · n=20235Cited 304×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →