Mixed
Bariatric surgery significantly reduces overall mortality, diabetes incidence, and cardiovascular events compared to usual care in obese patients over long-term follow-up.
For individuals with severe obesity (BMI >34-38 depending on sex), bariatric surgery is the most effective intervention for reducing long-term mortality and preventing type 2 diabetes and heart disease compared to lifestyle changes or medication alone. While surgery carries short-term risks, the long-term benefits in survival and disease prevention are substantial and sustained over decades.
Compared with usual care, bariatric surgery was associated with a long-term reduction in overall mortality ratio (HR) = 0.71... and decreased incidences of diabetes (adjusted HR=0.17)... myocardial infarction (adjusted HR = 0.71)... stroke (adjusted HR=0.66)... and cancer (women: adjusted HR = 0.58).
Why this rating
Prospective, controlled, long-term (up to 20 years) study with high follow-up rates for mortality data via national registers.
Source
Review of the key results from the Swedish Obese Subjects (<scp>SOS</scp>) trial – a prospective controlled intervention study of bariatric surgery
L. Sjöström · Journal of Internal Medicine · 2013
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