Cost-Effectiveness of Bariatric Surgery versus Medication Therapy for Obese Patients with Type 2 Diabetes in China: A Markov Analysis

Aims/Introduction. The present study estimated the cost-effectiveness of bariatric surgery versus medication therapy for the management of recently diagnosed type 2 diabetes mellitus (T2DM) in obese patients from a Chinese health insurance payer perspective. Materials and Methods. A Markov model was...

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Main Authors: Bin Wan, Nan Fang, Wei Guan, Haixia Ding, Ying Wang, Xin Ge, Hui Liang, Xin Li, Yiyang Zhan
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Journal of Diabetes Research
Online Access:http://dx.doi.org/10.1155/2019/1341963
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author Bin Wan
Nan Fang
Wei Guan
Haixia Ding
Ying Wang
Xin Ge
Hui Liang
Xin Li
Yiyang Zhan
author_facet Bin Wan
Nan Fang
Wei Guan
Haixia Ding
Ying Wang
Xin Ge
Hui Liang
Xin Li
Yiyang Zhan
author_sort Bin Wan
collection DOAJ
description Aims/Introduction. The present study estimated the cost-effectiveness of bariatric surgery versus medication therapy for the management of recently diagnosed type 2 diabetes mellitus (T2DM) in obese patients from a Chinese health insurance payer perspective. Materials and Methods. A Markov model was established to compare the 40-year time costs and quality-adjusted life-years (QALYs) between bariatric surgery and medication therapy. The health-care costs in the bariatric surgery group, proportion of patients in each group with remission of diabetes, and state transition probabilities were calculated based on observed resource utilization from the hospital information system (HIS). The corresponding costs in the medication therapy group were derived from the medical insurance database. QALYs were estimated from previous literature. Costs and outcomes were discounted 5% annually. Results. In the base case analysis, bariatric surgery was more effective and less costly than medication therapy. Over a 40-year time horizon, the mean discounted costs were 86,366.55 RMB per surgical therapy patient and 113,235.94 CNY per medication therapy patient. The surgical and medication therapy patients lived 13.46 and 10.95 discounted QALYs, respectively. Bariatric surgery was associated with a mean health-care savings of 26,869.39 CNY and 2.51 additional QALYs per patient compared to medication therapy. Uncertainty around the parameter values was tested comprehensively in sensitivity analyses, and the results were robust. Conclusions. Bariatric surgery is a dominant intervention over a 40-year time horizon, which leads to significant cost savings to the health insurance payer and increases in health benefits for the management of recently diagnosed T2DM in obese patients in China.
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spelling doaj-art-1856b15709a64408a70cad5c651aec3d2025-02-03T01:31:57ZengWileyJournal of Diabetes Research2314-67452314-67532019-01-01201910.1155/2019/13419631341963Cost-Effectiveness of Bariatric Surgery versus Medication Therapy for Obese Patients with Type 2 Diabetes in China: A Markov AnalysisBin Wan0Nan Fang1Wei Guan2Haixia Ding3Ying Wang4Xin Ge5Hui Liang6Xin Li7Yiyang Zhan8Department of Health Insurance Management, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, ChinaDepartment of Health Policy, School of Health Policy and Management, Nanjing Medical University, Nanjing, Jiangsu, ChinaDepartment of General Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, ChinaDepartment of Health Insurance Management, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, ChinaDepartment of Health Policy, School of Health Policy and Management, Nanjing Medical University, Nanjing, Jiangsu, ChinaDepartment of Health Policy, School of Health Policy and Management, Nanjing Medical University, Nanjing, Jiangsu, ChinaDepartment of General Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, ChinaDepartment of Health Policy, School of Health Policy and Management, Nanjing Medical University, Nanjing, Jiangsu, ChinaThe First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, ChinaAims/Introduction. The present study estimated the cost-effectiveness of bariatric surgery versus medication therapy for the management of recently diagnosed type 2 diabetes mellitus (T2DM) in obese patients from a Chinese health insurance payer perspective. Materials and Methods. A Markov model was established to compare the 40-year time costs and quality-adjusted life-years (QALYs) between bariatric surgery and medication therapy. The health-care costs in the bariatric surgery group, proportion of patients in each group with remission of diabetes, and state transition probabilities were calculated based on observed resource utilization from the hospital information system (HIS). The corresponding costs in the medication therapy group were derived from the medical insurance database. QALYs were estimated from previous literature. Costs and outcomes were discounted 5% annually. Results. In the base case analysis, bariatric surgery was more effective and less costly than medication therapy. Over a 40-year time horizon, the mean discounted costs were 86,366.55 RMB per surgical therapy patient and 113,235.94 CNY per medication therapy patient. The surgical and medication therapy patients lived 13.46 and 10.95 discounted QALYs, respectively. Bariatric surgery was associated with a mean health-care savings of 26,869.39 CNY and 2.51 additional QALYs per patient compared to medication therapy. Uncertainty around the parameter values was tested comprehensively in sensitivity analyses, and the results were robust. Conclusions. Bariatric surgery is a dominant intervention over a 40-year time horizon, which leads to significant cost savings to the health insurance payer and increases in health benefits for the management of recently diagnosed T2DM in obese patients in China.http://dx.doi.org/10.1155/2019/1341963
spellingShingle Bin Wan
Nan Fang
Wei Guan
Haixia Ding
Ying Wang
Xin Ge
Hui Liang
Xin Li
Yiyang Zhan
Cost-Effectiveness of Bariatric Surgery versus Medication Therapy for Obese Patients with Type 2 Diabetes in China: A Markov Analysis
Journal of Diabetes Research
title Cost-Effectiveness of Bariatric Surgery versus Medication Therapy for Obese Patients with Type 2 Diabetes in China: A Markov Analysis
title_full Cost-Effectiveness of Bariatric Surgery versus Medication Therapy for Obese Patients with Type 2 Diabetes in China: A Markov Analysis
title_fullStr Cost-Effectiveness of Bariatric Surgery versus Medication Therapy for Obese Patients with Type 2 Diabetes in China: A Markov Analysis
title_full_unstemmed Cost-Effectiveness of Bariatric Surgery versus Medication Therapy for Obese Patients with Type 2 Diabetes in China: A Markov Analysis
title_short Cost-Effectiveness of Bariatric Surgery versus Medication Therapy for Obese Patients with Type 2 Diabetes in China: A Markov Analysis
title_sort cost effectiveness of bariatric surgery versus medication therapy for obese patients with type 2 diabetes in china a markov analysis
url http://dx.doi.org/10.1155/2019/1341963
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