Why the study?
This systematic review aimed to comprehensively synthesize cost-effectiveness evidences of bariatric surgery by pooling incremental net monetary benefits.
Does bariatric surgery improve incremental net monetary benefits compared to usual care in patients with obesity?
Does bariatric surgery improve incremental net monetary benefits compared to usual care in patients with obesity?
Bariatric surgery is highly cost-effective compared to usual care for patients with obesity, with or without diabetes, in high-income countries over both 10-year and lifetime horizons.
Reinforces economic case for bariatric surgery in HICs; leaves open long-term value and applicability in diverse settings.
This systematic review aimed to comprehensively synthesize cost-effectiveness evidences of bariatric surgery by pooling incremental net monetary benefits (INB). Twenty-eight full economic evaluation studies comparing bariatric surgery with usual care were identified from five databases. In high-income countries (HICs), bariatric surgery was cost-effective among mixed obesity group (i.e., obesity with/without diabetes) over a 10-year time horizon (pooled INB = $53,063.69; 95% CI $42,647.96, $63,479.43) and lifetime horizon (pooled INB = $101,897.96; 95% CI $79,390.93, $124,404.99). All studies conducted among obese with diabetes reported that bariatric surgery was cost-effective. Also, the pooled INB for obesity with diabetes group over lifetime horizon in HICs was $80,826.28 (95% CI $32,500.75, $129,151.81). Nevertheless, no evidence is available in low- and middle-income countries.
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Noparatayaporn et al. (2021) studied this question.
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