Cost-utility analysis of bariatric surgery.

Area of Science:

• Health Economics
• Surgical Innovation
• Public Health Policy

Background:

• Morbid obesity presents significant healthcare challenges in England.
• Evaluating the economic and clinical effectiveness of bariatric surgery is crucial for resource allocation.
• Non-surgical management of morbid obesity has limitations in long-term outcomes.

Purpose of the Study:

• To conduct a cost-utility analysis of bariatric surgery versus usual care for morbidly obese patients in England.
• To determine the lifetime cost-effectiveness of various bariatric surgical procedures.
• To assess the impact of bariatric surgery on health outcomes and healthcare expenditure.

Main Methods:

• A state-transition Markov model was employed to simulate costs and outcomes.
• Data from UK and Scandinavian registries informed surgical effectiveness and complication rates.
• UK-based cost and utility data were utilized for the economic evaluation.

Main Results:

• Bariatric surgery resulted in a lifetime cost reduction of £1944 and an increase of 4.0 quality-adjusted life-years (QALYs) per patient.
• Surgical interventions demonstrated potential to decrease risks of cardiovascular diseases and diabetes.
• Delaying bariatric surgery by up to 3 years led to a loss of 0.7 QALYs and a minor cost saving.

Conclusions:

• Bariatric surgery is a cost-saving intervention for morbidly obese individuals in England over their lifetime.
• The findings support the integration of bariatric surgery into standard care pathways.
• Timely surgical intervention maximizes both health gains and economic benefits.