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Bariatric surgery is a cost-saving treatment for obesity a comprehensive meta-analysis and updated systematic review of health economic evaluations of bariatric surgery

Citation

Xia, Q and Campbell, JA and Ahmad, H and Si, L and de Graaff, B and Palmer, AJ, Bariatric surgery is a cost-saving treatment for obesity - a comprehensive meta-analysis and updated systematic review of health economic evaluations of bariatric surgery, Obesity Reviews pp. 1-15. ISSN 1467-7881 (2019) [Refereed Article]

Copyright Statement

Copyright 2019 World Obesity Federation

DOI: doi:10.1111/obr.12932

Abstract

Demand for bariatric surgery to treat severe and resistant obesity far outstrips supply. We aimed to comprehensively synthesise health economic evidence regarding bariatric surgery from 1995 to 2018 (PROSPERO registration number: CRD42018094189). Meta-analyses were conducted to calculate the annual cost changes "before" and "after" surgery, and cumulative cost differences between surgical and nonsurgical groups. An updated narrative review also summarized the full and partial health economic evaluations of surgery from September 2015. N = 101 studies were eligible for the qualitative analyses since 1995, with n = 24 studies after September 2015. Quality of reporting has increased, and the inclusion of complications/reoperations was predominantly contained in the full economic evaluations after September 2015. Technical improvements in surgery were also reflected across the studies. Sixty-one studies were eligible for the quantitative meta-analyses. Compared with no/conventional treatment, surgery was cost saving over a lifetime scenario. Additionally, consideration of indirect costs through sensitivity analyses increased cost savings. Medication cost savings were dominant in the before versus after meta-analysis. Overall, bariatric surgery is cost saving over the life course even without considering indirect costs. Health economists are hearing the call to present higher quality studies and include the costs of complications/reoperations; however, indirect costs and body contouring surgery are still not appropriately considered.

Item Details

Item Type:Refereed Article
Keywords:cost changes, indirect cost, sleeve gastrectomy, waiting list, weight loss surgery
Research Division:Economics
Research Group:Applied Economics
Research Field:Health Economics
Objective Division:Health
Objective Group:Health and Support Services
Objective Field:Health Education and Promotion
UTAS Author:Xia, Q (Miss Qing Xia)
UTAS Author:Campbell, JA (Dr Julie Campbell)
UTAS Author:Ahmad, H (Mr Hasnat Ahmad)
UTAS Author:Si, L (Mr Lei Si)
UTAS Author:de Graaff, B (Dr Barbara de Graaff)
UTAS Author:Palmer, AJ (Professor Andrew Palmer)
ID Code:134138
Year Published:2019
Deposited By:Menzies Institute for Medical Research
Deposited On:2019-07-30
Last Modified:2020-03-30
Downloads:0

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