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Nu Vu A, Hoang MV, Lindholm L, Sahlen KG, Nguyen CTT, Sun S. A systematic review on the direct approach to elicit the demand-side cost-effectiveness threshold: Implications for low- and middle-income countries. PLoS One 2024; 19:e0297450. [PMID: 38329955 PMCID: PMC10852300 DOI: 10.1371/journal.pone.0297450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 01/04/2024] [Indexed: 02/10/2024] Open
Abstract
Several literature review studies have been conducted on cost-effectiveness threshold values. However, only a few are systematic literature reviews, and most did not investigate the different methods, especially in-depth reviews of directly eliciting WTP per QALY. Our study aimed to 1) describe the different direct approach methods to elicit WTP/QALY; 2) investigate factors that contribute the most to the level of WTP/QALY value; and 3) investigate the relation between the value of WTP/QALY and GDP per capita and give some recommendations on feasible methods for eliciting WTP/QALY in low- and middle-income countries (LMICs). A systematic review concerning select studies estimating WTP/QALY from a direct approach was carried out in seven databases, with a cut off date of 03/2022. The conversion of monetary values into 2021 international dollars (i$) was performed via CPI and PPP indexes. The influential factors were evaluated with Bayesian model averaging. Criteria for recommendation for feasible methods in LMICs are made based on empirical evidence from the systematic review and given the resource limitation in LMICs. A total of 12,196 records were identified; 64 articles were included for full-text review. The WTP/QALY method and values varied widely across countries with a median WTP/QALY value of i$16,647.6 and WTP/QALY per GDP per capita of 0.53. A total of 11 factors were most influential, in which the discrete-choice experiment method had a posterior probability of 100%. Methods for deriving WTP/QALY vary largely across studies. Eleven influential factors contribute most to the level of values of WTP/QALY, in which the discrete-choice experiment method was the greatest affected. We also found that in most countries, values for WTP/QALY were below 1 x GDP per capita. Some important principles are addressed related to what LMICs may be concerned with when conducting studies to estimate WTP/QALY.
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Affiliation(s)
- Anh Nu Vu
- Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden
| | - Minh Van Hoang
- Department of Health Economics, Hanoi University of Public Health, Hanoi City, Vietnam
| | - Lars Lindholm
- Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden
| | - Klas Göran Sahlen
- Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden
| | - Cuc Thi Thu Nguyen
- Department of Pharmaceutical Management and Economics, Faculty of Pharmaceutical Management and Economics, Hanoi University of Pharmacy, Hanoi City, Vietnam
| | - Sun Sun
- Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden
- Department of Learning, Informatics, Management and Ethics, Karolinska Institute, Stockholm, Sweden
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Zhao Z, Yang Y, Wu W, Dong H. Willingness to pay for cancer prevention versus treatment in China: implications for cost-effectiveness threshold. Expert Rev Pharmacoecon Outcomes Res 2024; 24:155-160. [PMID: 37754783 DOI: 10.1080/14737167.2023.2262141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/13/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND Empirical support for the appropriate cost-effectiveness threshold (CET) in China remains sparse. OBJECTIVE This study aimed to estimate the willingness to pay (WTP) for cancer prevention and treatment from the perspective of healthcare policy-makers (i.e. supply side) and to investigate whether there is a difference between the estimated WTP in two scenarios. METHODS We conducted a web-based survey from May to July 2022 among experts who offering consultation to the government. We surveyed 79 experts from a national think-tank (84.81% response rate) using contingent valuation method, a method for estimating the monetary value that individuals place on a non-market service. RESULTS The mean WTP for two scenarios were estimated at 1.29 times of per capita Gross Domestic Product (GDP) of China and 1.90 times of per capita GDP, respectively. There was a difference between the WTP in the two scenarios and the WTP for treatment was significantly higher than prevention. CONCLUSION The findings suggest that though there is a smaller gap between the two scenarios in China as compared to other countries, the WTP may vary under different scenarios. So there's a need to further refine the development of CET by adding parameters like prevention instead of defining one universal threshold.
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Affiliation(s)
- Zixuan Zhao
- Department of Public Administration, School of Health Economics and Management, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yi Yang
- Department of Science and Education of the Fourth Affiliated Hospital, and Center for Health Policy Studies, School of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Weijia Wu
- Department of Science and Education of the Fourth Affiliated Hospital, and Center for Health Policy Studies, School of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Hengjin Dong
- Department of Science and Education of the Fourth Affiliated Hospital, and Center for Health Policy Studies, School of Public Health, Zhejiang University School of Medicine, Hangzhou, China
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Ghahramani S, Hadipour M, Peymani P, Ghahramani S, Lankarani KB. Health-related quality of life variation by socioeconomic status: Evidence from an Iranian population-based study. JOURNAL OF EDUCATION AND HEALTH PROMOTION 2023; 12:287. [PMID: 37849870 PMCID: PMC10578546 DOI: 10.4103/jehp.jehp_1031_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 10/25/2022] [Indexed: 10/19/2023]
Abstract
BACKGROUND Health-Related Quality of Life (HRQoL) values based on the accurate and reliable European Quality of Life Five Dimension (EQ-5D) questionnaire gives health-state utilities as a helpful data set for studying socio-demographic and socio-economic inequalities in health status in the general population. We aimed to do a population-based study to see how HRQoL varies by socio-demographics and socioeconomic status (SES). MATERIALS AND METHODS The study was a cross-sectional population-based study in Shiraz, Iran's southwest. Data was gathered utilizing a personal digital assistant (PDA). A trained interviewer administered the EQ-5D questionnaire to a representative sample of 1036 inhabitants. Principal component analysis (PCA) was used to create SES indices. Because of the skewed distribution, quantile regression was utilized to model the quartiles of HRQoL values. STATA 12.0 was used to perform all statistical analyses. P <0.05 was considered statistically significant. RESULTS In 1036 study respondents, women had a mean HRQoL of 0.67 ± 0.28, whereas men had a mean HRQoL of 0.78 ± 0.25. Gender and age remained significant in all quartiles of HRQoL value. Participants with insurance showed 0.14 and 0.08 higher HRQoL values in the first and second HRQoL quartiles than those without coverage, respectively. Education [95% CI: 0.034, 0.111)], economy [95% CI: 0.013, 0.077], and assets [95% CI: 0.003, 0.069] all had an impact on HRQoL value in the lowest quintile. CONCLUSION In all quartiles of HRQoL value, women had lower reported HRQoL than men. Insurance programs aimed at more disadvantaged groups with poorer HRQoL may help to minimize inequity. Education, economics, and assets all had an impact on the lower quartiles of HRQoL value, emphasizing the importance of general policies in determining public health status.
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Affiliation(s)
- Sulmaz Ghahramani
- Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Hadipour
- Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Payam Peymani
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Sahar Ghahramani
- Division of Occupational Science and Occupational Therapy at the Ostrow School of Dentistry, University of Southern California, Angeles, CA
| | - Kamran B. Lankarani
- Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
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Safari H, Poder TG, Afshari S, Nahvijou A, Arab-Zozani M, Moradi N, Ameri H. Determination of a cost-effectiveness threshold for cancer interventions in Iran. Front Oncol 2022; 12:1039589. [PMID: 36578935 PMCID: PMC9791211 DOI: 10.3389/fonc.2022.1039589] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 11/24/2022] [Indexed: 12/14/2022] Open
Abstract
Background and objectives The estimation of a cost- Effectiveness (CE) threshold from the perspective of those who have experienced a life-threatening disease can provide empirical evidence for health policy makers to make the best allocation decisions on limited resources. The aim of the current study was to empirically determine the CE threshold for cancer interventions from the perspective of cancer patients in Iran. Methods A composite time trade-off (cTTO) task for deriving quality adjusted life-year (QALY) and a double-bounded dichotomous choice (DBDC) approach followed by open-ended question for examining patients' willingness-to-pay were performed. A nationally representative sample of 580 cancer patients was recruited from the largest governmental cancer centers in Iran between June 2021 and January 2022, and data were gathered using face-to-face interviews. The CE threshold was calculated using the nonparametric Turnbull model and parametric interval-censored Weibull regression model. Furthermore, the factors that affect the CE threshold were determined using the parametric model. Results The estimated CE threshold using the nonparametric Turnbull model and parametric interval-censored Weibull regression model was IRR 440,410,000 (USD 10,485.95) and IRR 595,280,000 (USD 14,173.33) per QALY, respectively. Gender, age, education, income, type of cancer, and current treatment status were significantly associated with the estimated CE threshold. Conclusions The value of parametric model-based threshold in this study was 1.98 times the Iranian GDP per capita, which was lower than the CE threshold value recommended by the WHO (i.e., 3 times the GDP per capita) for low-and middle-income countries.
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Affiliation(s)
- Hossein Safari
- Health Promotion Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Thomas G. Poder
- Department of Management, Evaluation and Health Policy, School of Public Health, University of Montreal, Montreal, QC, Canada,Centre de recherche de l’Institut universitaire en santé mentale de Montréal, CIUSSS de l’Est de l’île de Montréal, Montreal, QC, Canada
| | - Somayeh Afshari
- Department of Health Management and Economics, School of Public Health, Tehran University of Medical Science, Tehran, Iran
| | - Azin Nahvijou
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Morteza Arab-Zozani
- Social Determinants of Health Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Nasrin Moradi
- Department of Health Management and Economics, School of Public Health, Iran University of Medical Science, Tehran, Iran
| | - Hosein Ameri
- Health Policy and Management Research Center, Department of Health Management and Economics, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran,*Correspondence: Hosein Ameri,
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Ghahramani S, Sepehrpoor M, Kazerooni AR, Jahromi AT, Khoshsoroor D, Barzegar D, Seifooripour R, Moradi N, Roodsarabi F, Manzouri A, Sayari M. Estimating willingness to pay for diabetes complications. Prim Care Diabetes 2022; 16:829-836. [PMID: 36253327 DOI: 10.1016/j.pcd.2022.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 09/26/2022] [Accepted: 09/29/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Maximum willingness to pay (WTP) for a health benefit is connected to perceived value. This two-center study aims to analyse diabetic patients' WTP for obtaining a specific preventive treatment package to reduce severe diabetic complications and determine the factors that impact this value. METHODS This cross-sectional research included 557 diabetics from two cities in Iran. The WTP for a preventative package minimising major diabetes complications (cardiovascular, renal, ocular, and diabetic foot) by 50% and 100% was tested using eight scenarios. The Diabetes Attitude Scoring Questionnaire (DAS-3) was used to examine patient attitudes toward diabetes. To determine WTP, a two-stage hurdle method was used. The level of significance was fixed to 0.05. RESULTS Around 80% of 557 people interviewed (mean age 47.54) stated they wanted to pay for a diabetes prevention package. This package's WTP varied from 169.4 to $374.5 depending on the complication and degree of risk reduction. The largest value diabetic patients willing to pay for preventative packages that reduce the chance of blindness was reported, while the lowest cost was stated for the diabetic foot. WTP is influenced by wealth, location of study, marital status, and attitude toward special training, but not by the type of diabetes, inpatient or outpatient setting, or the complications diabetes patients are impacted by. Patients' diabetes attitudes were mainly negative. The score of the attitude of patients towards diabetes was generally suboptimal. CONCLUSION Most diabetic patients were willing to pay for a preventive package and this value was not affected by the type of diabetes and its severity. Our research found that diabetic individuals are willing to pay the most for a preventative package that reduces the chance of blindness, and the least for diabetic foot care. WTP can help health officials allocate resources and manage budgets. The attitude of diabetic patients toward diabetes still needs further interventional research, however.
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Affiliation(s)
- Sulmaz Ghahramani
- Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Minoo Sepehrpoor
- Students Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran.
| | | | | | - Danial Khoshsoroor
- Students Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Darya Barzegar
- Students Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Seifooripour
- Students Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Najmeh Moradi
- Health Management and Economics Research Center, Health Management Research Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Roodsarabi
- School of Medicine, Sabzevar University Of Medical Sciences, Sabzevar, Iran
| | - Ali Manzouri
- Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Sayari
- Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
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Ghahramani S, Ziar N, Moradi N, Bagheri Lankarani K, Sayari M. Preserving natural teeth versus extracting them: a willingness to pay analysis. BMC Oral Health 2022; 22:375. [PMID: 36058912 PMCID: PMC9441316 DOI: 10.1186/s12903-022-02404-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 08/22/2022] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Maximum willingness to pay (WTP) for a health benefit is related to perceived value. The goal of this study was to find out how much Iranian healthy people would be willing to pay to keep their natural teeth instead of having them pulled. This was done separately for the anterior and posterior teeth. METHODS The highest value was posed as an open-ended question in this cross-sectional analysis conducted in 2021. Four distinct scenarios for treating a tooth with a poor prognosis for natural tooth preservation versus extraction were offered. WTP for the preferred treatment option was asked for painful and painless anterior and posterior teeth separately. A two-stage hurdle approach was employed to determine factors influencing the WTP for a hopeless case. The level of significance was fixed at 0.05. RESULTS Out of 795 individuals, 355 (44.7%) were male and 209 (26.3%) had poor self-stated dental health. Over 65% of those interviewed said they wanted to keep their teeth. The mean WTP was highest for dental preservation up to 94 USD and the lowest was for extraction without replacement 19 USD. The WTP for anterior tooth therapy was greater than the WTP for posterior dental care, regardless of treatment type or tooth discomfort. Participants with higher education, jobs, income-to-expenditure matching, older age, preference for the treatment in a private office, and female gender (except for WTP for a painful posterior tooth) were more likely to have a WTP of at least 1 USD. CONCLUSION The average WTP for treatment of teeth with a poor prognosis was lower than the average fee charged in dental facilities, and more than 65% of participants preferred to keep their teeth. Regardless of the treatment option or whether it was painful or not, WTP for anterior teeth treatment was higher than for posterior teeth. Generally, we found that sociodemographic factors influenced WTP decision-making the most. This study has practical implications for public oral health policymakers and insurance organizations.
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Affiliation(s)
- Sulmaz Ghahramani
- Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nazanin Ziar
- Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Najmeh Moradi
- Health Management and Economics Research Center, Health Management Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Kamran Bagheri Lankarani
- Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Sayari
- Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran.
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Quinn KL, Krahn M, Stukel TA, Grossman Y, Goldman R, Cram P, Detsky AS, Bell CM. No Time to Waste: An Appraisal of Value at the End of Life. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2022; 25:S1098-3015(22)01966-0. [PMID: 35690518 DOI: 10.1016/j.jval.2022.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 04/13/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVES The use of economic evaluations of end-of-life interventions may be limited by an incomplete appreciation of how patients and society perceive value at end of life. The objective of this study was to evaluate how patients, caregivers, and society value gains in quantity of life and quality of life (QOL) at the end of life. The validity of the assumptions underlying the use of the quality-adjusted life-years (QALY) as a measure of preferences at end of life was also examined. METHODS MEDLINE, Embase, CINAHL, PsycINFO, and PubMed were searched from inception to February 22, 2021. Original research studies reporting empirical data on healthcare priority setting at end of life were included. There was no restriction on the use of either quantitative or qualitative methods. Two reviewers independently screened, selected, and extracted data from studies. Narrative synthesis was conducted for all included studies. The primary outcomes were the value of gains in quantity of life and the value of gains in QOL at end of life. RESULTS A total of 51 studies involving 53 981 participants reported that gains in QOL were generally preferred over quantity of life at the end of life across stakeholder groups. Several violations of the underlying assumptions of the QALY to measure preferences at the end of life were observed. CONCLUSIONS Most patients, caregivers, and members of the general public prioritize gains in QOL over marginal gains in life prolongation at the end of life. These findings suggest that policy evaluations of end-of-life interventions should favor those that improve QOL. QALYs may be an inadequate measure of preferences for end-of-life care thereby limiting their use in formal economic evaluations of end-of-life interventions.
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Affiliation(s)
- Kieran L Quinn
- Department of Medicine, University of Toronto, Toronto, ON, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada; ICES, Toronto and Ottawa, ON, Canada; Department of Medicine, Sinai Health System, Toronto, ON, Canada.
| | - Murray Krahn
- Department of Medicine, University of Toronto, Toronto, ON, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada; ICES, Toronto and Ottawa, ON, Canada; Toronto Health Economics and Technology Assessment Collaborative, Toronto, ON, Canada
| | - Thérèse A Stukel
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada; ICES, Toronto and Ottawa, ON, Canada
| | - Yona Grossman
- Arts and Science Program, McMaster University, Hamilton, ON, Canada
| | - Russell Goldman
- Interdepartmental Division of Palliative Care, Sinai Health System, Toronto, ON, Canada; Temmy Latner Centre for Palliative Care, Toronto, ON, Canada
| | - Peter Cram
- Department of Medicine, University of Toronto, Toronto, ON, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada; ICES, Toronto and Ottawa, ON, Canada; Department of Medicine, Sinai Health System, Toronto, ON, Canada
| | - Allan S Detsky
- Department of Medicine, University of Toronto, Toronto, ON, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada; Department of Medicine, Sinai Health System, Toronto, ON, Canada
| | - Chaim M Bell
- Department of Medicine, University of Toronto, Toronto, ON, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada; ICES, Toronto and Ottawa, ON, Canada; Department of Medicine, Sinai Health System, Toronto, ON, Canada
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Cai D, Shi S, Jiang S, Si L, Wu J, Jiang Y. Estimation of the cost-effective threshold of a quality-adjusted life year in China based on the value of statistical life. THE EUROPEAN JOURNAL OF HEALTH ECONOMICS : HEPAC : HEALTH ECONOMICS IN PREVENTION AND CARE 2022; 23:607-615. [PMID: 34655364 PMCID: PMC9135816 DOI: 10.1007/s10198-021-01384-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 09/28/2021] [Indexed: 05/19/2023]
Abstract
Cost-effective threshold (CET) is essential for health technology assessment and decision-making based on health economic evaluations. Recently, it has been argued that the commonly used once and three times of gross domestic product (GDP) per capita CETs of a quality-adjusted life year (QALY) are not necessarily empirically supported in all countries. Therefore, we aimed to estimate the CET of a QALY as times of GDP per capita in China, of which the reimbursement coverage decisions are increasingly engaging economic evaluations. Estimates on the value of statistical life (VSL) in China were identified from several studies in the literature and converted to times of GDP per capita, the weighted average of which was used for subsequent calculation. By pooling data on population mortality, health utility, and age distribution, we estimated the value of a statistical QALY (VSQ) from VSL using an established mathematical process, which represented the theoretical upper bound of CET. The corresponding point estimate and theoretical lower bound were obtained using their numerical relationships with the upper bound. Scenarios analyses were also conducted. The estimated CET, its upper bound, and its lower bound were 1.45, 2.90, and 1.16 times of GDP per capita in China, respectively. In different scenarios, the estimated CET varied but was greater than once GDP per capita in most cases. As such, the CET of a QALY in China is close to 1.5 times of GDP per capita, which should be benchmarked for future ICER-based coverage decisions.
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Affiliation(s)
- Dan Cai
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Si Shi
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Shan Jiang
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Lei Si
- The George Institute for Global Health, UNSW Sydney, Kensington, Australia
- School of Health Policy and Management, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jing Wu
- School of Pharmaceutical Science and Technology, Tianjin University, No. 92 Weijin Road, Nankai District, Tianjin, China.
| | - Yawen Jiang
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, China.
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Kouakou CRC, Poder TG. Willingness to pay for a quality-adjusted life year: a systematic review with meta-regression. THE EUROPEAN JOURNAL OF HEALTH ECONOMICS : HEPAC : HEALTH ECONOMICS IN PREVENTION AND CARE 2022; 23:277-299. [PMID: 34417905 DOI: 10.1007/s10198-021-01364-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 07/29/2021] [Indexed: 05/12/2023]
Abstract
The use of a threshold for cost-utility studies is of major importance to health authorities for making the best allocation decisions for limited resources. Regarding the increasing number of studies worldwide that seek to establish a value for a quality-adjusted life year (QALY), it is necessary to review these studies to provide a global insight into the literature. A systematic review on willingness to pay (WTP) studies focusing on QALY was conducted in eight databases up to June 26, 2020. From a total of 9991 entries, 39 studies were selected, and 511 observations were extracted for the meta-analysis using the ordinary least squares method. The results showed a predicted mean empirical value of $52,619.39 (95% CI 49,952.59; 55,286.19) per QALY in US dollars for 2018. A 1% increase in income led to an increase of 0.6% in the WTP value, while a 1-year increase in respondent age led to a decrease of 3.3% in the WTP value. Sex, education level and employment status had significant effects on WTP. Compared to face-to-face interviews, surveys conducted by the internet or telephone were more likely to have a significantly higher value of WTP per QALY, while out-of-pocket payment tended to lower the value. The prediction made for the province of Quebec, Canada, provided a QALY value of approximately USD $98,450 (CAD $127,985), which is about 2.3 times its gross domestic product (GDP) per capita in 2018. This study is consistent with the extant literature and will be useful for countries that do not yet have a preference-based survey for the value of a QALY.
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Affiliation(s)
- Christian R C Kouakou
- Department of Economics, School of Business, University of Sherbrooke, Sherbrooke, Canada
- Centre de recherche de l'Institut universitaire en santé mentale de Montréal, CIUSSS de l'Est de l'Île de Montréal, Montreal, Canada
| | - Thomas G Poder
- Centre de recherche de l'Institut universitaire en santé mentale de Montréal, CIUSSS de l'Est de l'Île de Montréal, Montreal, Canada.
- Department of Management, Evaluation and Health Policy, School of Public Health, University of Montreal, Montreal, Canada.
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Jahanbin SF, Yusefzadeh H, Nabilou B, Alinia C. Value of willingness to pay for a QALY gained in Iran; a modified chained-approach. BMC Health Serv Res 2021; 21:1339. [PMID: 34906099 PMCID: PMC8670027 DOI: 10.1186/s12913-021-07344-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 11/26/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Due to the lack of a constant Willingness to Pay per one additional Quality Adjusted Life Years gained based on the preferences of Iran's general public, the cost-effectiveness of health system interventions is unclear and making it challenging to apply economic evaluation to health resources priority setting. METHODS We have measured this cost-effectiveness threshold with the participation of 2854 individuals from five provinces, each representing an income quintile, using a modified Time Trade-Off-based Chained-Approach. In this online-based empirical survey, to extract the health utility value, participants were randomly assigned to one of two green (21121) and yellow (22222) health scenarios designed based on the earlier validated EQ-5D-3L questionnaire. RESULTS Across the two health state versions, mean values for one QALY gain (rounded) ranged from $6740-$7400 and $6480-$7120, respectively, for aggregate and trimmed models, which are equivalent to 1.35-1.18 times of the GDP per capita. Log-linear Multivariate OLS regression analysis confirmed that respondents were more likely to pay if their income, disutility, and education level were higher than their counterparts. CONCLUSIONS In the health system of Iran, any intervention that is with the incremental cost-effectiveness ratio, equal to and less than 7402.12 USD, will be considered cost-effective.
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Affiliation(s)
- Seyedeh-Fariba Jahanbin
- Department of Health Management and Economics, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran
| | - Hasan Yusefzadeh
- Department of Health Management and Economics, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran
| | - Bahram Nabilou
- Department of Health Management and Economics, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran
| | - Cyrus Alinia
- Department of Health Management and Economics, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran.
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Gloria MAJ, Thavorncharoensap M, Chaikledkaew U, Youngkong S, Thakkinstian A, Culyer AJ. A Systematic Review of Demand-Side Methods of Estimating the Societal Monetary Value of Health Gain. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2021; 24:1423-1434. [PMID: 34593165 DOI: 10.1016/j.jval.2021.05.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVES Although many reviews of the literature on cost-effectiveness thresholds (CETs) exist, the availability of new studies and the absence of a fully comprehensive analysis warrant a new review. This study systematically reviews demand-side methods for estimating the societal monetary value of health gain. METHODS Several electronic databases were searched from inception to October 2019. To be included, a study had to be an original article in any language, with a clearly described method for estimating the societal monetary values of health gain and with all estimated values reported. Estimates were converted to US dollars ($), using purchasing power parity (PPP) exchange rates and the gross domestic product (GDP) per capita (2019). RESULTS We included 53 studies; 45 used direct approach and 8 used indirect approach. Median estimates from the direct approach were PPP$ 24 942 (range 554-1 301 912) per quality-adjusted life-year (QALY), which were typically 0.53 (range 0.02-24.08) GDP per capita. Median estimates using the indirect approach were PPP$ 310 051 (range 36 402-7 574 870) per QALY, which accounted for 7.87 (range 0.68-116.95) GDP per capita. CONCLUSIONS Our review found that the societal values of health gain or CETs were less than GDP per capita. The great variety in methods and estimates suggests that a more standardized and internationally agreed methodology for estimating CET is warranted. Multiple CETs may have a role when QALYs are not equally valued from a societal perspective (eg, QALYs accruing to people near death compared with equivalent QALYs to others).
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Affiliation(s)
- Mac Ardy Junio Gloria
- Mahidol University Health Technology Assessment Graduate Program, Mahidol University, Bangkok, Thailand; Department of Pharmacy, College of Pharmacy, University of the Philippines Manila, Manila, Philippines
| | - Montarat Thavorncharoensap
- Mahidol University Health Technology Assessment Graduate Program, Mahidol University, Bangkok, Thailand; Social and Administrative Pharmacy Division, Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand.
| | - Usa Chaikledkaew
- Mahidol University Health Technology Assessment Graduate Program, Mahidol University, Bangkok, Thailand; Social and Administrative Pharmacy Division, Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
| | - Sitaporn Youngkong
- Mahidol University Health Technology Assessment Graduate Program, Mahidol University, Bangkok, Thailand; Social and Administrative Pharmacy Division, Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
| | - Ammarin Thakkinstian
- Mahidol University Health Technology Assessment Graduate Program, Mahidol University, Bangkok, Thailand; Department of Clinical Epidemiology and Biostatistics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Anthony J Culyer
- Centre for Health Economics, University of York, York, England, UK
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Ye Z, Ma J, Liu F, Wang C, Zhou Z, Sun L. A systematic review and meta-regression of studies eliciting willingness-to-pay per quality-adjusted life year in the general population. Expert Rev Pharmacoecon Outcomes Res 2021; 22:53-61. [PMID: 33464926 DOI: 10.1080/14737167.2021.1878881] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES From the demand-side perspective, the monetary value of one additional quality-adjusted life year (QALY) is estimated as willingness-to-pay per QALY (WTPQ). This study aims to summarize the methods and contexts of elicitation of willingness-to-pay per quality-adjusted life year (WTPQ) in the general population and to investigate the heterogeneity of WTPQ estimates. METHODS Meta-regression analysis was conducted using Comprehensive Meta-Analysis Software. Sensitivity analyses were undertaken by replacing the lowest and highest 5% and 2.5% of WTPQ by percentiles. RESULTS 33 studies with 102 WTPQ estimates were included. The overall mean and median WTPQ estimates are $1,280,002 and $44,072, respectively. The meta-regressions demonstrated that types of health gain (quality of life or life length) and certainty of health outcomes are statistically significant factors. Furthermore, compared with online interviews, face-to-face interviews tend to yield lower WTPQ. Moreover, the declining trend of QALY gains and positive effect with statistical significance of the sample age were also noticed. CONCLUSION For valid and representative values of WTPQ, future researchers should therefore take into consideration various scenarios and investigate both health gain with certainty and uncertainty, health gain from both life length and quality of life, and different size of QALY gains.
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Affiliation(s)
- Ziping Ye
- School of business administration, Shenyang Pharmaceutical University, Shenyang, China
| | - Jia Ma
- School of business administration, Shenyang Pharmaceutical University, Shenyang, China
| | - Fuyao Liu
- School of business administration, Shenyang Pharmaceutical University, Shenyang, China
| | - Chen Wang
- School of business administration, Shenyang Pharmaceutical University, Shenyang, China
| | - Ziyang Zhou
- School of business administration, Shenyang Pharmaceutical University, Shenyang, China
| | - Lihua Sun
- School of business administration, Shenyang Pharmaceutical University, Shenyang, China
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Moradi N, Woldemichael A, Malekian P, Rotvandi DM, Rezaei S. An exploratory study to estimate cost-effectiveness threshold value for life saving treatments in western Iran. COST EFFECTIVENESS AND RESOURCE ALLOCATION 2020; 18:47. [PMID: 33110399 PMCID: PMC7585313 DOI: 10.1186/s12962-020-00241-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/13/2020] [Indexed: 11/10/2022] Open
Abstract
Background Cost-effectiveness analysis provides a crucial means for evidence-informed decision-making on resource allocation. This study aims to elicit individuals' willingness to pay (WTP) for one additional quality-adjusted life-year (QALY) gained from life-saving treatment and associated factors in Kermanshah city, western Iran. Methods We conducted a cross-sectional study on a total of 847 adults aged 18 years and above to elicit their WTP for one additional QALY gained by oneself and a family member using a hypothetical life-saving treatment. We used a multistage sampling technique to select the samples, and the Iranian version of EQ-5D-3L, and visual analogue scale (VAS) measures to obtain the participants’ health utility value. The Tobit regression model was used to identify the factors affecting WTP per QALY values. Results The mean WTP value and standard deviation (SD) was US$ 862 (3,224) for the respondents. The mean utility values using EQ-5D-3L and VAS methods for respondents were 0.779 and 0.800, respectively. Besides, the WTP for the additional QALY gained by the individual participants using the EQ-5D-3L and VAS methods were respectively US$ 1,202 and US$ 1,101, while the estimated value of the family members was US$ 1,355 (SD = 3,993). The Tobit regression models indicated that monthly income, education level, sex, and birthplace were statistically significantly associated (p < 0.05) with both the WTP for the extra QALY values using the EQ-5D-3L and the VAS methods. Educational level and monthly income also showed statistically significant relationships with the WTP for the additional QALY gained by the family members (p < 0.05). Conclusion Our findings indicated that the participants' WTP value of the additional QALY gained from the hypothetical life-saving treatment was in the range of 0.20–0.24 of the gross domestic product (GDP) per capita of Iran. This value is far lower than the World Health Organization (WHO) recommended CE threshold value of one. This wide gap reflects the challenges the health system is facing and requires further research for defining the most appropriate CE threshold at the local level.
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Affiliation(s)
- Najmeh Moradi
- Health Management and Economics Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Abraha Woldemichael
- Department of Health Systems, School of Public Health, College of Health Sciences, Mekelle University, Mekelle, Ethiopia
| | - Parisa Malekian
- Students Researches Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Delnia Moradi Rotvandi
- Students Researches Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Satar Rezaei
- Research Center for Environmental Determinants of Health, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
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