Does bariatric surgery reduce future hospital costs? A propensity score-matched analysis using UK Biobank Study data

Objectives To estimate the hospital costs among persons with obesity undergoing bariatric surgery compared with those without bariatric surgery. Methods We analysed the UK Biobank Cohort study linked to Hospital Episode Statistics, for all adults with obesity undergoing bariatric surgery at National...

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Bibliographic Details
Published in:International Journal of Obesity 2021-10, Vol.45 (10), p.2205-2213
Main Authors: Wu, Tingting, Pouwels, Koen B., Welbourn, Richard, Wordsworth, Sarah, Kent, Seamus, Wong, Carlos K. H.
Format: Article
Language:English
Subjects:
692/308
692/700
Adult
Aged
Bariatric Surgery - economics
Bariatric Surgery - methods
Bariatric Surgery - statistics & numerical data
Biobanks
Biological Specimen Banks - economics
Biological Specimen Banks - organization & administration
Biological Specimen Banks - statistics & numerical data
Care and treatment
Cohort Studies
Cost analysis
Cost assessments
Cost control
Cost reduction
Economic aspects
Epidemiology
Evaluation
Expenditures
Female
Gastrectomy
Gastric bypass
Gastrointestinal surgery
Health Promotion and Disease Prevention
Hospital costs
Hospital Costs - standards
Hospital Costs - statistics & numerical data
Humans
Internal Medicine
Male
Medical care, Cost of
Medicine
Medicine & Public Health
Metabolic Diseases
Middle Aged
Obesity
Patients
Propensity Score
Public Health
Statistical analysis
Surgery
United Kingdom
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Summary:Objectives To estimate the hospital costs among persons with obesity undergoing bariatric surgery compared with those without bariatric surgery. Methods We analysed the UK Biobank Cohort study linked to Hospital Episode Statistics, for all adults with obesity undergoing bariatric surgery at National Health Service hospitals in England, Scotland, or Wales from 2006 to 2017. Surgery patients were matched with controls who did not have bariatric surgery using propensity scores approach with a ratio of up to 1-to-5 by year. Inverse probability of censoring weighting was used to correct for potential informative censoring. Annual and cumulative hospital costs were assessed for the surgery and control groups. Results We identified 348 surgical patients (198 gastric bypass, 73 sleeve gastrectomy, 77 gastric banding) during the study period. In total, 324 surgical patients and 1506 matched control participants were included after propensity score matching. Mean 5-year cumulative hospital costs were €11,659 for 348 surgical patients. Compared with controls, surgical patients ( n  = 324) had significantly higher inpatient expenditures in the surgery year (€7289 vs. €2635, P  
ISSN:0307-0565
1476-5497
DOI:10.1038/s41366-021-00887-2