Research
Mixed
Baseline anthropometry (initial BMI/weight) is the strongest predictor of treatment success for both surgical and medical obesity interventions, followed by psychiatric health and lifestyle factors.
Your starting weight and BMI are the best predictors of how much weight you will lose, regardless of whether you choose surgery or medical treatment. Higher baseline BMI often correlates with greater absolute weight loss. Mental health and lifestyle habits are also significant factors.
GoodSupportsHIGH confidence
Baseline anthropometry had the strongest predictive value for treatment success overall, other important domains were psychiatric disease, lifestyle and habits, biomarkers, mental well-being and socioeconomic status.
Why this rating
Derived from a machine learning model (Random Forest) on a large cohort.
Source
Comparing effects of obesity treatment with very low energy diet and bariatric surgery after 2 years: a prospective cohort study
Gudrún Höskuldsdóttir et al. · BMJ Open · 2022
DOI 10.1136/bmjopen-2021-053242
cohort · n=971Cited 8×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Bariatric surgery (RYGB or SG) produces significantly greater weight loss and higher treatment success rates than structured medical treatment including very low energy diet (VLED) at 2-year follow-up, though both interventions improve cardiovascular risk factors and safety profiles similarly.Good
- Both bariatric surgery (RYGB/SG) and structured medical treatment (VLED) result in similar safety profiles regarding hospitalization, need for further surgery, and mortality at 2-year follow-up, despite differences in weight loss magnitude.Good
Related findings · Mixed
- Bariatric surgery (VSG and RYGB) is the most effective and sustainable treatment for obesity, producing marked and sustained weight loss that non-surgical interventions cannot match.Strong
- Severely protein-deficient diets (2–3% energy) induce lean body mass loss and metabolic imbalance, whereas adequate protein intake (0.66 g/kg/d minimum) is a prerequisite for maintaining muscle, bone, and physiological function.Strong
- For patients with Class III obesity (BMI >39.9 kg/m2), metabolic bariatric surgery (MBS) is significantly more effective than any currently approved medication, with BilioPancreatic Diversion (BPD) showing the highest estimated weight loss.Strong
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