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Santos JAR, Grant R, Di Tanna GL. Bayesian Meta-Analysis of Health State Utility Values: A Tutorial with a Practical Application in Heart Failure. PHARMACOECONOMICS 2024; 42:721-735. [PMID: 38767714 PMCID: PMC11180161 DOI: 10.1007/s40273-024-01387-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/22/2024] [Indexed: 05/22/2024]
Abstract
Researchers incorporate health state utility values as inputs to inform economic models. However, for a particular health state or condition, multiple utility values derived from different studies typically exist and a single study is often insufficient to represent the best available source of utility needed to inform policy decisions. The purpose of this paper is to provide an introductory guidance for conducting Bayesian meta-analysis of health state utility values to generate a single parameter input for economic evaluation, using R. The tutorial is illustrated using data from a systematic review of health state utilities of patients with heart failure, with 21 studies that reported utilities measured using the EuroQol-5D (EQ-5D). Explanations, key considerations and suggested readings are provided for each step of the tutorial, adhering to a clear workflow for conducting Bayesian meta-analysis: (1) setting-up the data; (2) employing methods to impute missing standard deviations; (3) defining the priors; (4) fitting the model; (5) diagnosing model convergence; (6) interpreting the results; and (7) performing sensitivity analyses. The posterior distributions for the pooled effect size (i.e. mean health state utility) and between-study heterogeneity are discussed and interpreted in light of the data, priors and models used. We hope that this tutorial will foster interest in Bayesian methods and their applications in the meta-analysis of utilities.
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Affiliation(s)
- Joseph Alvin Ramos Santos
- Department of Business Economics, Health and Social Care (DEASS), University of Applied Sciences and Arts of Southern Switzerland (SUPSI), Manno, Ticino, Switzerland
| | - Robert Grant
- BayesCamp Ltd, Winchester, UK
- Kingston University, London, UK
| | - Gian Luca Di Tanna
- Department of Business Economics, Health and Social Care (DEASS), University of Applied Sciences and Arts of Southern Switzerland (SUPSI), Manno, Ticino, Switzerland.
- Department of Clinical Research (DCR), University of Bern, Bern, Switzerland.
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Darab MG, Engel L, Henzler D, Lauerer M, Nagel E, Brown V, Mihalopoulos C. Model-Based Economic Evaluations of Interventions for Dementia: An Updated Systematic Review and Quality Assessment. APPLIED HEALTH ECONOMICS AND HEALTH POLICY 2024; 22:503-525. [PMID: 38554246 PMCID: PMC11178626 DOI: 10.1007/s40258-024-00878-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/07/2024] [Indexed: 04/01/2024]
Abstract
BACKGROUND There has been an increase in model-based economic evaluations of interventions for dementia. The most recent systematic review of economic evaluations for dementia highlighted weaknesses in studies, including lack of justification for model assumptions and data inputs. OBJECTIVE This study aimed to update the last published systematic review of model-based economic evaluations of interventions for dementia, including Alzheimer's disease, with a focus on any methodological improvements and quality assessment of the studies. METHODS Systematic searches in eight databases, including PubMed, Cochrane, Embase, CINAHL, PsycINFO, EconLit, international HTA database, and the Tufts Cost-Effectiveness Analysis Registry were undertaken from February 2018 until August 2022. The quality of the included studies was assessed using the Philips checklist and the Consolidated Health Economic Evaluation Reporting Standards (CHEERS) 2022 checklist. The findings were summarized through narrative analysis. RESULTS This review included 23 studies, comprising cost-utility analyses (87%), cost-benefit analyses (9%) and cost-effectiveness analyses (4%). The studies covered various interventions, including pharmacological (n = 10, 43%), non-pharmacological (n = 4, 17%), prevention (n = 4, 17%), diagnostic (n = 4, 17%) and integrated (n = 1, 4%) [diagnostics-pharmacologic] strategies. Markov transition models were commonly employed (65%), followed by decision trees (13%) and discrete-event simulation (9%). Several interventions from all categories were reported as being cost effective. The quality of reporting was suboptimal for the Methods and Results sections in almost all studies, although the majority of studies adequately addressed the decision problem, scope, and model-type selection in their economic evaluations. Regarding the quality of methodology, only a minority of studies addressed competing theories or clearly explained the rationale for model structure. Furthermore, few studies systematically identified key parameters or assessed data quality, and uncertainty was mostly addressed partially. CONCLUSIONS This review informs future research and resource allocation by providing insights into model-based economic evaluations for dementia interventions and highlighting areas for improvement.
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Affiliation(s)
- Mohsen Ghaffari Darab
- School of Health and Social Development, Deakin Health Economics, Institute for Health Transformation, Deakin University, Geelong, Australia.
- Institute for Management in Medicine and Health Sciences, University of Bayreuth, Bayreuth, Germany.
| | - Lidia Engel
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Dennis Henzler
- Institute for Management in Medicine and Health Sciences, University of Bayreuth, Bayreuth, Germany
| | - Michael Lauerer
- Institute for Management in Medicine and Health Sciences, University of Bayreuth, Bayreuth, Germany
| | - Eckhard Nagel
- Institute for Management in Medicine and Health Sciences, University of Bayreuth, Bayreuth, Germany
| | - Vicki Brown
- School of Health and Social Development, Deakin Health Economics, Institute for Health Transformation, Deakin University, Geelong, Australia
| | - Cathrine Mihalopoulos
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
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3
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Muchadeyi MT, Hernandez-Villafuerte K, Di Tanna GL, Eckford RD, Feng Y, Meregaglia M, Peasgood T, Petrou S, Ubels J, Schlander M. Quality Appraisal in Systematic Literature Reviews of Studies Eliciting Health State Utility Values: Conceptual Considerations. PHARMACOECONOMICS 2024; 42:767-782. [PMID: 38551803 PMCID: PMC11180162 DOI: 10.1007/s40273-024-01365-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/22/2024] [Indexed: 06/16/2024]
Abstract
BACKGROUND The increasing number of studies that generate health state utility values (HSUVs) and the impact of HSUVs on cost-utility analyses make a robust tailored quality appraisal (QA) tool for systematic reviews of these studies necessary. OBJECTIVE This study aimed to address conceptual issues regarding QA in systematic reviews of studies eliciting HSUVs by establishing a consensus on the definitions, dimensions and scope of a QA tool specific to this context. METHODS A modified Delphi method was used in this study. An international multidisciplinary panel of seven experts was purposively assembled. The experts engaged in two anonymous online survey rounds. After each round, the experts received structured and controlled feedback on the previous phase. Controlled feedback allowed the experts to re-evaluate and adjust their positions based on collective insights. Following these surveys, a virtual face-to-face meeting was held to resolve outstanding issues. Consensus was defined a priori at all stages of the modified Delphi process. RESULTS The response rates to the first-round and second-round questionnaires and the virtual consensus meeting were 100%, 86% and 71%, respectively. The entire process culminated in a consensus on the definitions of scientific quality, QA, the three QA dimensions-reporting, relevance and methodological quality-and the scope of a QA tool specific to studies that elicit HSUVs. CONCLUSIONS Achieving this consensus marks a pivotal step towards developing a QA tool specific to systematic reviews of studies eliciting HSUVs. Future research will build on this foundation, identify QA items, signalling questions and response options, and develop a QA tool specific to studies eliciting HSUVs.
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Affiliation(s)
- Muchandifunga Trust Muchadeyi
- Division of Health Economics, German Cancer Research Centre (DKFZ) Foundation under Public Law, Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
- Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Karla Hernandez-Villafuerte
- Division of Health Economics, German Cancer Research Centre (DKFZ) Foundation under Public Law, Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Gian Luca Di Tanna
- Department of Business Economics, Health and Social Care (DEASS), University of Applied Sciences and Arts of Southern Switzerland, Manno, Lugano, Switzerland
- The George Institute for Global Health, University of New South Wales (UNSW Sydney), Sydney, NSW, Australia
| | - Rachel D Eckford
- Division of Health Economics, German Cancer Research Centre (DKFZ) Foundation under Public Law, Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Yan Feng
- Wolfson Institute of Population Health, Queen Mary University of London, London, UK
| | - Michela Meregaglia
- Centre for Research on Health and Social Care Management (CERGAS), SDA Bocconi School of Management, Milan, Italy
| | - Tessa Peasgood
- Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia
- Sheffield Centre for Health and Related Research, University of Sheffield, Sheffield, UK
| | - Stavros Petrou
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Jasper Ubels
- Division of Health Economics, German Cancer Research Centre (DKFZ) Foundation under Public Law, Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
- Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Michael Schlander
- Division of Health Economics, German Cancer Research Centre (DKFZ) Foundation under Public Law, Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.
- Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
- Alfred Weber Institute for Economics (AWI), University of Heidelberg, Heidelberg, Germany.
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4
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Geoghegan L, Carolina M, French J, Harrison CJ, Rodrigues JN. Health-related quality of life in patients with conditions affecting the hand: meta-analysis. Br J Surg 2024; 111:znae067. [PMID: 38593043 PMCID: PMC11003527 DOI: 10.1093/bjs/znae067] [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: 10/17/2023] [Revised: 11/23/2023] [Accepted: 02/24/2024] [Indexed: 04/11/2024]
Abstract
BACKGROUND Health state utility values provide the quality component of quality-adjusted life years and are essential for health economic analyses, such as the National Institute for Health and Care Excellence Technology Appraisal. The aims of this systematic review were to: catalogue utility values for health states experienced by patients with hand conditions; provide pooled utility estimates for common hand conditions; and determine how utilities have been estimated. METHODS A PRISMA-compliant systematic review and meta-analysis was conducted (registered in PROSPERO, the international prospective register of systematic reviews (CRD42021226098)). Five databases were searched from inception until April 2023 (Embase, MEDLINE, PsycINFO, the Cumulative Index to Nursing and Allied Health Literature (CINAHL), and the Cochrane Central Register of Controlled Trials (CENTRAL)). All studies that reported primary utility values for hand health states in adult patients were eligible for inclusion. Pooled utility estimates were determined across conditions and intervention status using random-effects meta-analysis. RESULTS A total of 10 254 articles were identified; 57 studies met the full inclusion criteria and reported 363 distinct health state utility values. Health state utility values were estimated using a range of methods; the most common measure was the EQ-5D. Pooled utility estimates for carpal tunnel syndrome and hand osteoarthritis before surgical intervention were 0.69 (95% c.i. 0.66 to 0.73) and 0.63 (95% c.i. 0.60 to 0.67) respectively. CONCLUSION Pooled utility estimates for patients with untreated carpal tunnel syndrome and hand osteoarthritis are 11% and 18% lower than age-matched population norms respectively. Hand conditions have a significant detrimental impact on health-related quality of life and this study provides catalogued utility values for use in future economic analyses to support the delivery of value-based hand surgery.
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Affiliation(s)
- Luke Geoghegan
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Maria Carolina
- Department of Orthopaedic Surgery, University of Verona, Verona, Italy
| | - James French
- University of Birmingham Medical School, University of Birmingham, Birmingham, UK
| | - Conrad J Harrison
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Jeremy N Rodrigues
- Warwick Clinical Trials Unit, University of Warwick, Warwick, UK
- Department of Plastic, Reconstructive and Hand Surgery, Stoke Mandeville Hospital, Aylesbury, UK
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Miao P, Terris-Prestholt F, Fairley CK, Tucker JD, Wiseman V, Mayaud P, Zhang Y, Rowley J, Gottlieb S, Korenromp EL, Watts CG, Ong JJ. Ignored and undervalued in public health: a systematic review of health state utility values associated with syphilis infection. Health Qual Life Outcomes 2024; 22:17. [PMID: 38350925 PMCID: PMC10863090 DOI: 10.1186/s12955-024-02234-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 01/29/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND Syphilis is a sexually transmitted infection causing significant global morbidity and mortality. To inform policymaking and economic evaluation studies for syphilis, we summarised utility and disability weights for health states associated with syphilis. METHODS We conducted a systematic review, searching six databases for economic evaluations and primary valuation studies related to syphilis from January 2000 to February 2022. We extracted health state utility values or disability weights, including identification of how these were derived. The study was registered in the international prospective register of systematic reviews (PROSPERO, CRD42021230035). FINDINGS Of 3401 studies screened, 22 economic evaluations, two primary studies providing condition-specific measures, and 13 burden of disease studies were included. Fifteen economic evaluations reported outcomes as disability-adjusted life years (DALYs) and seven reported quality-adjusted life years (QALYs). Fourteen of 15 economic evaluations that used DALYS based their values on the original Global Burden of Disease (GBD) study from 1990 (published in 1996). For the seven QALY-related economic evaluations, the methodology varied between studies, with some studies using assumptions and others creating utility weights or converting them from disability weights. INTERPRETATION We found a limited evidence base for the valuation of health states for syphilis, a lack of transparency for the development of existing health state utility values, and inconsistencies in the application of these values to estimate DALYs and QALYs. Further research is required to expand the evidence base so that policymakers can access accurate and well-informed economic evaluations to allocate resources to address syphilis and implement syphilis programs that are cost-effective.
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Affiliation(s)
- Patrick Miao
- Central Clinical School, Monash University, Melbourne, Australia
- Melbourne Sexual Health Centre, 580 Swanston Street, Carlton, Victoria, 3053, Australia
| | - Fern Terris-Prestholt
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, United Kingdom
- UNAIDS, Geneva, Switzerland
| | - Christopher K Fairley
- Central Clinical School, Monash University, Melbourne, Australia
- Melbourne Sexual Health Centre, Melbourne, Australia
| | - Joseph D Tucker
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
- University of North Carolina at Chapel Hill, Chapel Hill, USA
| | - Virginia Wiseman
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Kirby Institute, University of New South Wales, Sydney, Australia
| | - Philippe Mayaud
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Ying Zhang
- Central Clinical School, Monash University, Melbourne, Australia
| | - Jane Rowley
- Global HIV, Hepatitis and Sexual Transmitted Infections Programme, World Health Organization, Geneva, Switzerland
| | - Sami Gottlieb
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | | | - Caroline G Watts
- Kirby Institute, University of New South Wales, Sydney, Australia
- The Daffodil Centre, The University of Sydney, a joint venture with Cancer Council NSW, Sydney, Australia
| | - Jason J Ong
- Central Clinical School, Monash University, Melbourne, Australia.
- Melbourne Sexual Health Centre, Melbourne, Australia.
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom.
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Niño-de-Guzmán E, Bracchiglione J, Vásquez-Mejía A, de Graaf G, Rocha Calderón C, Alonso-Coello P. How Do Patients With Type 2 Diabetes Mellitus Value the Importance of Outcomes? An Overview of Reviews. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2023; 26:1782-1794. [PMID: 37516195 DOI: 10.1016/j.jval.2023.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 04/16/2023] [Accepted: 07/16/2023] [Indexed: 07/31/2023]
Abstract
OBJECTIVES We aimed to assess how patients value the importance of type 2 diabetes mellitus (T2DM) related outcomes. METHODS Overview of systematic reviews (SRs) reporting patients' utilities or disutilities for T2DM outcomes. We searched 3 databases from inception until June 2021. Study selection and data extraction were conducted in pairs. We evaluated the quality of SRs with the Joanna Briggs Institute Checklist, and the overlap with the corrected covered area. We estimated descriptive statistics, and, when possible, conducted metanalysis. RESULTS We identified 11 SRs, including 119 studies and 70 outcomes. Most reviews were high-quality SRs. The outcomes with the lowest utilities were hypoglycemia with very severe symptoms (acute complications), stroke (macrovascular complications), diabetic peripheral neuropathy with severe pain (microvascular complications), extreme obesity (comorbidities), and insulin only or combined (management of diabetes). Good/excellent glucose control and noninsulin injectable showed higher values than T2DM without complications. The outcomes with the highest disutilities were amputation, depression, major hypoglycemia, stroke, and management using only insulin. CONCLUSIONS We provide standardized, reliable utility values (or associated disutilities) for T2DM, acute, microvascular and macrovascular complications, related comorbidities and treatments that may support judgments when making clinical recommendations, designing decision support tools, and developing interventions and economic analysis.
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Affiliation(s)
- Ena Niño-de-Guzmán
- Iberoamerican Cochrane Centre, Sant Pau Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain; Cancer Prevention and Control Programme, Catalan Institute of Oncology, IDIBELL, Hospitalet de Llobregat, Barcelona, Spain; Department of Pediatrics, Obstetrics, Gynecology and Preventive Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - Javier Bracchiglione
- Iberoamerican Cochrane Centre, Sant Pau Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain; Interdisciplinary Centre for Health Studies (CIESAL), Universidad de Valparaíso, Valparaíso, Chile; CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Adrián Vásquez-Mejía
- Facultad de Medicina Humana, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Gimon de Graaf
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Claudio Rocha Calderón
- Iberoamerican Cochrane Centre, Sant Pau Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain
| | - Pablo Alonso-Coello
- Iberoamerican Cochrane Centre, Sant Pau Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
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Hatswell AJ. Incorporating Prior Beliefs Into Meta-Analyses of Health-State Utility Values Using the Bayesian Power Prior. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2023; 26:1389-1397. [PMID: 37187235 DOI: 10.1016/j.jval.2023.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 04/17/2023] [Accepted: 04/28/2023] [Indexed: 05/17/2023]
Abstract
OBJECTIVES Health-state utility values (HSUVs) directly affect estimates of Quality-Adjusted Life-Years and thus the cost-utility estimates. In practice a single preferred value (SPV) is often selected for HSUVs, despite meta-analysis being an option when multiple (credible) HSUVs are available. Nevertheless, the SPV approach is often reasonable because meta-analysis implicitly considers all HSUVs as equally relevant. This article presents a method for the incorporation of weights to HSUV synthesis, allowing more relevant studies to have greater influence. METHODS Using 4 case studies in lung cancer, hemodialysis, compensated liver cirrhosis, and diabetic retinopathy blindness, a Bayesian Power Prior (BPP) approach is used to incorporate beliefs on study applicability, reflecting the authors' perceived suitability for UK decision making. Older studies, non-UK value sets, and vignette studies are thus downweighted (but not disregarded). BPP HSUV estimates were compared with a SPV, random effects meta-analysis, and fixed effects meta-analysis. Sensitivity analyses were conducted iteratively updating the case studies, using alternative weighting methods, and simulated data. RESULTS Across all case studies, SPVs did not accord with meta-analyzed values, and fixed effects meta-analysis produced unrealistically narrow CIs. Point estimates from random effects meta-analysis and BPP models were similar in the final models, although BPP reflected additional uncertainty as wider credible intervals, particularly when fewer studies were available. Differences in point estimates were seen in iterative updating, weighting approaches, and simulated data. CONCLUSIONS The concept of the BPP can be adapted for synthesizing HSUVs, incorporating expert opinion on relevance. Because of the downweighting of studies, the BPP reflected structural uncertainty as wider credible intervals, with all forms of synthesis showing meaningful differences compared with SPVs. These differences would have implications for both cost-utility point estimates and probabilistic analyses.
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Affiliation(s)
- Anthony J Hatswell
- Delta Hat Limited, Nottingham, England, UK; Department of Statistical Science, University College London, London, England, UK.
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Redenz G, Ibaceta MC, Aceituno D, Balmaceda C, Espinoza MA. Health State Utility Values of Type 2 Diabetes Mellitus and Related Complications: A Systematic Review and Meta-Analysis. Value Health Reg Issues 2023; 34:14-22. [PMID: 36371899 DOI: 10.1016/j.vhri.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 09/01/2022] [Accepted: 09/25/2022] [Indexed: 11/13/2022]
Abstract
OBJECTIVES This study aims to synthesize health state utility values (HSUVs) of type 2 diabetes mellitus (T2DM) and its related complications published in the literature, conducting a meta-analysis of the data when possible. METHODS We conducted a systematic search in MEDLINE and School of Health and Related Research Health Utilities Database repository. Studies focused on T2DM and its complications reporting utility values elicited using direct and indirect methods were selected. We categorized the results according to the instrument to describe health and meta-analyzed them accordingly. Data included in the analysis were pooled in a fixed-effect model by the inverse of variance mean and random-effects DerSimonian-Laird method. Two approaches on sensitivity analysis were performed: leave-one-out method and including data of HSUVs obtained by foreign population value sets. RESULTS We identified 70 studies for the meta-analysis from a total of 467 studies. Sufficient data to pool T2DM HSUVs from EQ-5D instrument, hypoglycemia, and stroke were obtained. HSUVs varied from 0.7 to 0.92 in direct valuations, and the pooled mean of 3-level version of EQ-5D studies was 0.772 (95% confidence interval 0.763-0.78) and of 5-level version of EQ-5D 0.815 (95% confidence interval 0.808-0.823). HSUVs of complications varied from 0.739 to 0.843, or reductions of HSUVs between -0.014 and -0.094. In general, HSUVs obtained from 3-level version of EQ-5D and Health Utility Index 3 instruments were lower than those directly elicited. A considerable amount of heterogeneity was observed. Some complications remained unable to be pooled due to scarce of original articles. CONCLUSIONS T2DM and its complications have a considerable impact on health-related quality of life. 5-level version of EQ-5D estimates seems comparable with direct elicited HSUVs.
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Affiliation(s)
- Gunther Redenz
- Escuela de Kinesiología, Facultad de Medicina, Universidad de los Andes, Santiago, Chile
| | - Marcela Cárcamo Ibaceta
- Departamento de Epidemiología y estudios en salud, Universidad de los Andes, Santiago, Chile
| | - David Aceituno
- Departamento de psiquiatría, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Carlos Balmaceda
- Unidad de Evaluación de Tecnologías Sanitarias, Centro de Investigaciones Clínicas, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Manuel A Espinoza
- Departamento de Salud Pública, Pontificia Universidad Católica de Chile, Santiago, Chile.
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Muchadeyi MT, Hernandez-Villafuerte K, Schlander M. Quality appraisal for systematic literature reviews of health state utility values: a descriptive analysis. BMC Med Res Methodol 2022; 22:303. [PMID: 36434521 PMCID: PMC9700894 DOI: 10.1186/s12874-022-01784-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 11/04/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Health state utility values (HSUVs) are an essential input parameter to cost-utility analysis (CUA). Systematic literature reviews (SLRs) provide summarized information for selecting utility values from an increasing number of primary studies eliciting HSUVs. Quality appraisal (QA) of such SLRs is an important process towards the credibility of HSUVs estimates; yet, authors often overlook this crucial process. A scientifically developed and widely accepted QA tool for this purpose is lacking and warranted. OBJECTIVES To comprehensively describe the nature of QA in published SRLs of studies eliciting HSUVs and generate a list of commonly used items. METHODS A comprehensive literature search was conducted in PubMed and Embase from 01.01.2015 to 15.05.2021. SLRs of empirical studies eliciting HSUVs that were published in English were included. We extracted descriptive data, which included QA tools checklists or good practice recommendations used or cited, items used, and the methods of incorporating QA results into study findings. Descriptive statistics (frequencies of use and occurrences of items, acceptance and counterfactual acceptance rates) were computed and a comprehensive list of QA items was generated. RESULTS A total of 73 SLRs were included, comprising 93 items and 35 QA tools and good recommendation practices. The prevalence of QA was 55% (40/73). Recommendations by NICE and ISPOR guidelines appeared in 42% (16/40) of the SLRs that appraised quality. The most commonly used QA items in SLRs were response rates (27/40), statistical analysis (22/40), sample size (21/40) and loss of follow up (21/40). Yet, the most commonly featured items in QA tools and GPRs were statistical analysis (23/35), confounding or baseline equivalency (20/35), and blinding (14/35). Only 5% of the SLRS used QA to inform the data analysis, with acceptance rates of 100% (in two studies) 67%, 53% and 33%. The mean counterfactual acceptance rate was 55% (median 53% and IQR 56%). CONCLUSIONS There is a considerably low prevalence of QA in the SLRs of HSUVs. Also, there is a wide variation in the QA dimensions and items included in both SLRs and extracted tools. This underscores the need for a scientifically developed QA tool for multi-variable primary studies of HSUVs.
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Affiliation(s)
- Muchandifunga Trust Muchadeyi
- grid.7497.d0000 0004 0492 0584Division of Health Economics, German Cancer Research Center (DKFZ), Foundation Under Public Law, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany ,grid.7700.00000 0001 2190 4373Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Karla Hernandez-Villafuerte
- grid.7497.d0000 0004 0492 0584Division of Health Economics, German Cancer Research Center (DKFZ), Foundation Under Public Law, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany ,Health Economics, WifOR institute, Rheinstraße 22, Darmstadt, 64283 Germany
| | - Michael Schlander
- grid.7497.d0000 0004 0492 0584Division of Health Economics, German Cancer Research Center (DKFZ), Foundation Under Public Law, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany ,grid.7700.00000 0001 2190 4373Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany ,grid.7700.00000 0001 2190 4373Alfred Weber Institute for Economics (AWI), University of Heidelberg, Heidelberg, Germany
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Oh BC, Lee JE, Nam JH, Hong JY, Kwon SH, Lee EK. Health-related quality of life in adult patients with asthma according to asthma control and severity: A systematic review and meta-analysis. Front Pharmacol 2022; 13:908837. [DOI: 10.3389/fphar.2022.908837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 10/28/2022] [Indexed: 11/22/2022] Open
Abstract
Background: The utility values are increasingly being used in economic evaluations and health policy decision making. This study aims to conduct a systematic literature review and meta-analysis of the utility values for asthma, particularly with respect to severity and asthma control.Materials and methods: A literature search was conducted using the MEDLINE, Embase, and Cochrane Central Register of Controlled Trials databases for studies published until July, 2020, reporting the utilities of adult asthma. We extracted utility values derived by nine indirect and four direct utility instruments. Meta-analyses were performed for each utility instrument according to health states based on the level of asthma control and severity.Results: Fifty-two eligible studies were included in our systematic review, of which forty studies were used in the meta-analyses. Among the 13 utility instruments, the most used was EQ-5D-3L, whereas EQ-5D-5L showed the narrowest 95% confidence interval (95% CI, 0.83–0.86) of pooled utility. The pooled utility of asthma declined with worsening control levels and severity. The pooled utility value of EQ-5D-3L was 0.72 (95% CI, 0.63–0.80) for uncontrolled, 0.82 (95% CI, 0.75–0.88) for partly controlled, and 0.87 (95% CI, 0.84–0.90) for well-controlled asthma.Conclusion: Our study shows that EQ-5D-3L and EQ-5D-5L are appropriate for economic evaluations in terms of availability and variability of information, respectively. Asthma patients had poorer utility values with worsened severity and level of asthma control. This study will be useful for health economists conducting economic evaluations of asthma treatments.
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Costa I, Lima M, Medeiros A, Bezerra L, Santos P, Serquiz A, Lima M, Oliveira G, Santos E, Maciel B, Monteiro N, Morais AH. An Insulin Receptor-Binding Multifunctional Protein from Tamarindus indica L. Presents a Hypoglycemic Effect in a Diet-Induced Type 2 Diabetes-Preclinical Study. Foods 2022; 11:foods11152207. [PMID: 35892791 PMCID: PMC9332146 DOI: 10.3390/foods11152207] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/05/2022] [Accepted: 07/21/2022] [Indexed: 12/11/2022] Open
Abstract
The objectives of this study were to evaluate the hypoglycemic effect of the trypsin inhibitor isolated from tamarind seeds (TTI) in an experimental model of T2DM and the in silico interaction between the conformational models of TTI 56/287 and the insulin receptor (IR). After inducing T2DM, 15 male Wistar rats were randomly allocated in three groups (n = 5): 1—T2DM group without treatment; 2—T2DM group treated with adequate diet; and 3—T2DM treated with TTI (25 mg/kg), for 10 days. Insulinemia and fasting glucose were analyzed, and the HOMA-IR and HOMA-β were calculated. The group of animals treated with TTI presented both lower fasting glucose concentrations (p = 0.0031) and lower HOMA-IR indexes (p = 0.0432), along with higher HOMA-β indexes (p = 0.0052), than the animals in the other groups. The in silico analyses showed that there was an interaction between TTIp 56/287 and IR with interaction potential energy (IPE) of −1591.54 kJ mol−1 (±234.90), being lower than that presented by insulin and IR: −894.98 kJ mol−1 (±32.16). In addition, the presence of amino acids, type of binding and place of interaction other than insulin were identified. This study revealed the hypoglycemic effect of a bioactive molecule of protein origin from Tamarind seeds in a preclinical model of T2DM. Furthermore, the in silico analysis allowed the prediction of its binding in the IR, raising a new perspective for explaining TTI’s action on the glycemic response.
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Affiliation(s)
- Izael Costa
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59075-000, Brazil; (I.C.); (M.L.); (A.M.); (E.S.)
| | - Mayara Lima
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59075-000, Brazil; (I.C.); (M.L.); (A.M.); (E.S.)
| | - Amanda Medeiros
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59075-000, Brazil; (I.C.); (M.L.); (A.M.); (E.S.)
| | - Lucas Bezerra
- Chemistry Postgraduate Program, Science Center, Federal University of Ceará, Fortaleza 60020-903, Brazil; (L.B.); (N.M.)
| | - Paula Santos
- Federal Institute of Education, Science and Technology of Rio Grande do Norte, Macau 59500-000, Brazil;
| | - Alexandre Serquiz
- Nutrition Course, University Center of Rio Grande do Norte, Natal 59014-545, Brazil;
| | - Maíra Lima
- Veterinary Medicine Course, Potiguar University, Natal 59056-000, Brazil;
| | - Gerciane Oliveira
- Nutrition Postgraduate Program, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal 59075-000, Brazil; (G.O.); (B.M.)
| | - Elizeu Santos
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59075-000, Brazil; (I.C.); (M.L.); (A.M.); (E.S.)
- Biochemistry Department, Biosciences Center, Federal University of Rio Grande, Natal 59075-000, Brazil
- Tropical Medicine Institute, Federal University of Rio Grande do Norte, Natal 59075-000, Brazil
| | - Bruna Maciel
- Nutrition Postgraduate Program, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal 59075-000, Brazil; (G.O.); (B.M.)
- Nutrition Department, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal 59075-000, Brazil
| | - Norberto Monteiro
- Chemistry Postgraduate Program, Science Center, Federal University of Ceará, Fortaleza 60020-903, Brazil; (L.B.); (N.M.)
- Analytical Chemistry and Physical Chemistry Department, Science Center, Federal University of Ceará, Fortaleza 60020-903, Brazil
| | - Ana Heloneida Morais
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59075-000, Brazil; (I.C.); (M.L.); (A.M.); (E.S.)
- Nutrition Postgraduate Program, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal 59075-000, Brazil; (G.O.); (B.M.)
- Nutrition Department, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal 59075-000, Brazil
- Correspondence: or ; Tel.: +55-8499-106-1887
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Santos M, Monteiro AL, Biz AN, Guerra A, Cramer H, Canuto V, Cruz L, Pinto M, Viegas M, Fernandes R, Zimmermann I. Guidelines for Utility Measurement for Economic Analysis: The Brazilian Policy. Value Health Reg Issues 2022; 31:67-73. [PMID: 35533599 DOI: 10.1016/j.vhri.2022.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 02/07/2022] [Accepted: 03/11/2022] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Health-related quality of life is expressed in utilities, also referred to as utility estimates or parameters. Considerations about the source and type of utility values are especially important in a modeling context, where the lack of transparency, including the lack of a hierarchy for utility data sources, is a major issue to any estimation and can potentially compromise model reliability. OBJECTIVES This document aims to present the first version of the Brazilian guidelines for utility measurement to support economic analysis. METHODS A virtual workshop and a modified Delphi panel with 10 health technology specialists followed a rapid evaluation of 110 technical documents and indexed publications. The recommendations are based on the proposition that has received the most votes, although contentious issues are addressed in the suggestion or discussion. The rationale for the final decision is included in the text. RESULTS The consensus includes 50 recommendations with the following topics: Transparency and Reliability, Model Design, Conditions Under Which Generic Questionnaires Are Not Sensible or Valid, Utility Evidence Hierarchy, Utility Data Searching, Modeling Utility Values, Extrapolating Quality Adjusted Life-Years for Models With Lifetime Horizons, Caregiver Utility, Utility Data Synthesis, Quality/Certainty of the Evidence, and Utility Estimates in End-of-Life Conditions. CONCLUSIONS The goal of this project is to create unified national standards for using utility metrics in economic analysis in Brazil. This set of recommendations is not obligatory, but it is meant to serve as a guide and lead to the development of better and more transparent economic models in the country.
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Affiliation(s)
- Marisa Santos
- National Institute of Cardiology, Rio de Janeiro, Brazil.
| | - Andrea Liborio Monteiro
- Department of Pharmacy Systems, Outcomes and Policy, University of Illinois Chicago, Chicago, IL, USA
| | - Aline Navega Biz
- Health Economics and Decision Science, School of Health and Related Research, The University of Sheffield, Sheffield, England, UK
| | - Augusto Guerra
- Department of Social Pharmacy, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Helena Cramer
- National Institute of Cardiology, Rio de Janeiro, Brazil
| | - Vania Canuto
- Department of Management and Incorporation of Health Technologies, Ministry of Health, Brazil
| | - Luciane Cruz
- Research Project Office, Moinhos de Vento Hospital, Porto Alegre, Brazil
| | - Marcia Pinto
- National Institute of Women's, Children's and Adolescents' Health Fernandes Figueira, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | | | | | - Ivan Zimmermann
- Faculty of Medicine, University of Brasilia, Brasilia, Brazil
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The impact of loneliness and social isolation on health state utility values: a systematic literature review. Qual Life Res 2022; 31:1977-1997. [PMID: 35072904 PMCID: PMC8785005 DOI: 10.1007/s11136-021-03063-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2021] [Indexed: 01/11/2023]
Abstract
Abstract
Background
Loneliness and social isolation are recognised as social problems and denote a significant health burden. The aim of this study was to conduct a systematic literature review to explore the health state utility values (HSUVs) associated with loneliness and/or social isolation.
Method
Peer-reviewed journals published in English language that reported both HSUVs along with loneliness and/or social isolation scores were identified through five databases. No restrictions were made relating to the population, study design or utility estimation method used.
Results
In total, 19 papers were included; 12 included a measure of loneliness, four studies included a measure of social isolation and three studies considered both loneliness and social isolation. All studies focused on individuals with pre-existing health conditions—where the EQ-5D-3L instrument was most frequently used to assess HSUVs. HSUVs ranged from 0.5 to 0.95 in those who reported not being lonely, 0.42 to 0.97 in those who experienced some level of loneliness, 0.3 to 0.87 in those who were socially isolated and 0.63 to 0.94 in those who were not socially isolated.
Conclusion
There was significant variation in HSUVs complicated by the presence of co-morbidities, population heterogeneity, variations in methods used to derive utility scores and differences in the measurement of loneliness and/or social isolation. Nevertheless, the lower HSUVs observed should be considered to significantly impact quality of life, though we also note the need for further research to explore the unique impact of loneliness and social isolation on HSUVs that can be used in the future economic evaluations.
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Rautenberg T, Hodgkinson B, Zerwes U, Downes M. Meta-analysis of health state utility values measured by EuroQol 5-dimensions (EQ5D) questionnaire in Chinese women with breast cancer. BMC Cancer 2022; 22:52. [PMID: 35012457 PMCID: PMC8744051 DOI: 10.1186/s12885-021-09140-5] [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: 02/02/2021] [Accepted: 12/22/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To synthesise EQ5D health state utility values in Chinese women with breast cancer for parameterising a cost utility model. METHODS Eligible studies had to report health state utility values measured by EQ-5D in Chinese women diagnosed with breast cancer. Risk of bias was assessed using the Newcastle Ottawa Scale (NOS). Data from single arm studies was pooled using meta-analysis of single proportions to provide overall point estimates and 95% confidence intervals for fixed and random effects models using the inverse variance and Der Simonian-Laird methods respectively. Heterogeneity was evaluated using the I2 statistic and sensitivity analysis and meta-regression were conducted. RESULTS Five papers were included, when all studies were combined (n = 4,100) the mean utility (95% confidence interval) for random effects model was 0.83 (0.78, 0.89); for TNM 0-1 0.85 (0.75, 0.95); for TNM II 0.85 (0.78, 0.93); for TNM III 0.83 (0.77, 0.90) and for TNM IV 0.73 (0.63, 0.82).The utility of patients in State P (first year after primary breast cancer) 0.84 (0.80, 0.88); in State R (first year after recurrence) 0.73 (0.69, 0.76), in State S (second and following years after primary breast cancer or recurrence) 0.88 (0.83, 0.92); and in State M (metastatic disease) 0.78 (0.74, 0.82). Mean utility for duration since diagnosis 13 to 36 months was 0.88 (0.80, 0.96, I2 =95%); for 37 to 60 months 0.89 (0.82, 0.96, I2 =90%); for more than 60 months 0.86 (0.76, 0.96, I2 =90%). Mean utility for chemotherapy was 0.86 (0.79, 0.92, I2 =97%); for radiotherapy 0.83 (0.69, 0.96, I2 =97%); surgery 0.80 (0.69, 0.91, I2 =98%); concurrent chemo-radiation 0.70 (0.60, 0.81, I2 =86%) and endocrine therapy 0.90 (0.83, 0.97, I2 =91%). CONCLUSION This study synthesises the evidence for health state utility values for Chinese women with breast cancer which is useful to inform cost utility models.
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Affiliation(s)
- Tamlyn Rautenberg
- Centre for Applied Health Economics, Griffith University, Brisbane, Australia.
| | - Brent Hodgkinson
- Centre for Applied Health Economics, Griffith University, Brisbane, Australia
| | - Ute Zerwes
- Assessment in Medicine GmbH, Berlin, Germany
| | - Martin Downes
- Centre for Applied Health Economics, Griffith University, Brisbane, Australia
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Carrello J, Hayes A, Killedar A, Von Huben A, Baur LA, Petrou S, Lung T. Utility Decrements Associated with Adult Overweight and Obesity in Australia: A Systematic Review and Meta-Analysis. PHARMACOECONOMICS 2021; 39:503-519. [PMID: 33615427 DOI: 10.1007/s40273-021-01004-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE The aim was to conduct a systematic review and meta-analysis of health state utility decrements associated with overweight and obesity in adults 18 years and over, for use in modelled economic evaluations in Australia. METHODS A systematic review was conducted in nine databases to identify studies that reported health state utility values by weight status. Random-effects meta-analysis was used to synthesise average utility decrements (from healthy weight) associated with overweight, all obesity and obesity classes 1, 2 and 3. Heterogeneity surrounding utility decrements was assessed via sub-group analysis, random-effects meta-regression and sensitivity analyses. RESULTS Twelve studies were found for which data were used to synthesise utility decrements, estimated as overweight = 0.020 (95% confidence interval 0.010-0.030), all obesity = 0.055 (0.034-0.076), obesity class 1 = 0.047 (0.017-0.077), class 2 = 0.072 (0.028-0.116) and class 3 = 0.084 (0.039-0.130). There was considerable heterogeneity in our results, which could be accounted for by the different ages and utility instruments used in the contributing studies. CONCLUSIONS Our results demonstrate that elevated weight status is associated with small but statistically significant reductions in utility compared with healthy weight, which will result in reduced quality-adjusted life years when extrapolated across time and used in economic evaluations.
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Affiliation(s)
- Joseph Carrello
- School of Public Health, Edward Ford Building, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, 2006, Australia.
| | - Alison Hayes
- School of Public Health, Edward Ford Building, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Anagha Killedar
- School of Public Health, Edward Ford Building, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Amy Von Huben
- School of Public Health, Edward Ford Building, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Louise A Baur
- School of Public Health, Edward Ford Building, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, 2006, Australia
- Children's Hospital Westmead Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia
| | - Stavros Petrou
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Observatory Quarter, Oxford, UK
| | - Thomas Lung
- School of Public Health, Edward Ford Building, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, 2006, Australia
- Health Economics and Process Evaluation, The George Institute for Global Health, University of New South Wales, Kensington, Australia
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Blom EF, Haaf KT, de Koning HJ. Systematic Review and Meta-Analysis of Community- and Choice-Based Health State Utility Values for Lung Cancer. PHARMACOECONOMICS 2020; 38:1187-1200. [PMID: 32754857 PMCID: PMC7547043 DOI: 10.1007/s40273-020-00947-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
BACKGROUND Using appropriate health state utility values (HSUVs) is critical for economic evaluation of new lung cancer interventions, such as low-dose computed tomography screening and immunotherapy. Therefore, we provide a systematic review and meta-analysis of community- and choice-based HSUVs for lung cancer. METHODS On 6 March 2017, we conducted a systematic search of the following databases: Embase, Ovid MEDLINE, Web of Science, Cochrane CENTRAL, Google Scholar, and the School of Health and Related Research Health Utility Database. The search was updated on 17 April 2019. Studies reporting mean or median lung cancer-specific HSUVs including a measure of variance were included and assessed for relevance and validity. Studies with high relevance (i.e. community- and choice-based) were further analysed. Mean HSUVs were pooled using random-effects models for all stages, stages I-II, and stages III-IV. For studies with a control group, we calculated the disutility due to lung cancer. A sensitivity analysis included only the methodologically most comparable studies (i.e. using the EQ-5D instrument and matching tariff). Subgroup analyses were conducted by time to death, histology, sex, age, treatment modality, treatment line, and progression status. RESULTS We identified and analysed 27 studies of high relevance. The pooled HSUV was 0.68 (95% confidence interval [CI] 0.61-0.75) for all stages, 0.78 (95% CI 0.70-0.86) for stages I-II, and 0.69 (95% CI 0.65-0.73) for stages III-IV (p = 0.02 vs. stage I-II). Heterogeneity was present in each pooled analysis (p < 0.01; I2 = 92-99%). Disutility due to lung cancer ranged from 0.11 (95% CI 0.05-0.17) to 0.27 (95% CI 0.18-0.36). In the sensitivity analysis with the methodologically most comparable studies, stage-specific HSUVs varied by country. Such studies were only identified for Canada, China, Spain, the UK, the USA, Denmark, Germany, and Thailand. In the subgroup analysis by time to death, HSUVs for metastatic non-small-cell lung cancer ranged from 0.83 (95% CI 0.82-0.85) at ≥ 360 days from death to 0.56 (95% CI 0.46-0.66) at < 30 days from death. Among patients with metastatic non-small-cell lung cancer, HSUVs were lower for those receiving third- or fourth-line treatment and for those with progressed disease. Results of subgroup analyses by histology, sex, age, and treatment modality were ambiguous. CONCLUSIONS The presented evidence supports the use of stage- and country-specific HSUVs. However, such HSUVs are unavailable for most countries. Therefore, our pooled HSUVs may provide the best available stage-specific HSUVs for most countries. For metastatic non-small-cell lung cancer, adjusting for the decreased HSUVs in the last year of life may be considered, as may further stratification of HSUVs by treatment line or progression status. If required, HSUVs for other health states may be identified using our comprehensive breakdown of study characteristics.
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Affiliation(s)
- Erik F Blom
- Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Internal Postal Address Na-2401, P.O. Box 2040, 3000 CA, Rotterdam, the Netherlands.
| | - Kevin Ten Haaf
- Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Internal Postal Address Na-2401, P.O. Box 2040, 3000 CA, Rotterdam, the Netherlands
| | - Harry J de Koning
- Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Internal Postal Address Na-2401, P.O. Box 2040, 3000 CA, Rotterdam, the Netherlands
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Aceituno D, Pennington M, Iruretagoyena B, Prina AM, McCrone P. Health State Utility Values in Schizophrenia: A Systematic Review and Meta-Analysis. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2020; 23:1256-1267. [PMID: 32940244 DOI: 10.1016/j.jval.2020.05.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 04/03/2020] [Accepted: 05/20/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVES Patient preferences are increasingly important in informing clinical and policy decisions. Health-state utility values (HSUVs) are quantitative measures of people's preferences over different health states. In schizophrenia, there is no clarity about HSUVs across the symptoms' severity spectrum. This meta-analysis aims to synthesize the literature on HSUVs in people with schizophrenia. METHODS We searched Medline, PsycInfo, Embase, EconLit, The Cochrane Library, and specialized databases. The studies reporting HSUVs in people with schizophrenia were selected and pooled in a random-effects meta-analysis. The primary outcome was the mean HSUV obtained from participants. RESULTS A total of 54 studies involving 87 335 participants were included. The pooled estimate using direct elicitation was a mean HSUV of 0.79 (95% CI: 0.70-0.88) for mild symptomatic states, 0.69 (95% CI: 0.54-0.85) in moderate states, and 0.34 (95% CI: 0.13-0.56) in severe states. Studies using indirect techniques resulted in a pooled mean HSUV of 0.73 (95% CI: 0.67-0.78) applying the EuroQol 5-dimension, 0.66 (95% CI: 0.62-0.71) in the Short-Form 6-dimension, and 0.59 (95% CI: 0.57-0.61) using the Quality of Well-Being scale. All the estimates resulted in considerable heterogeneity, partially reduced by meta-regression. CONCLUSION Our findings suggest that the severity of psychotic symptoms has an important effect on HSUVs in schizophrenia, with values mirroring patients with disabling physical conditions such as cancer and stroke. Decision makers should be aware of these results when including people's preferences in trials, models, and policy decisions.
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Affiliation(s)
- David Aceituno
- Health Service & Population Research Department, Institute of Psychiatry, Psychology and Neuroscience. King's College London, London, United Kingdom; Department of Psychiatry, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Mark Pennington
- Health Service & Population Research Department, Institute of Psychiatry, Psychology and Neuroscience. King's College London, London, United Kingdom
| | - Barbara Iruretagoyena
- Department of Psychiatry, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile; Early Intervention Program, J. Horwitz Psychiatric Institute, Santiago, Chile
| | - A Matthew Prina
- Health Service & Population Research Department, Institute of Psychiatry, Psychology and Neuroscience. King's College London, London, United Kingdom
| | - Paul McCrone
- Healthcare Economics, Institute for Lifecourse Development, University of Greenwich, London, United Kingdom
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Grazziotin LR, Currie G, Kip MMA, IJzerman MJ, Twilt M, Lee R, Marshall DA. Health State Utility Values in Juvenile Idiopathic Arthritis: What is the Evidence? PHARMACOECONOMICS 2020; 38:913-926. [PMID: 32390065 DOI: 10.1007/s40273-020-00921-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
OBJECTIVES The objectives of this systematic review were to identify health state utility values (HSUV) of children and adults with juvenile idiopathic arthritis in the literature and to assess whether HSUV were appropriately reported and could be used to inform parameter inputs for a model-based cost-utility analysis to inform decision making. METHODS MEDLINE, EMBASE, PsycINFO, EconLit and CINAHL databases were searched in July 2019. Inclusion criteria were studies using preference-based instruments, targeting children or adults with juvenile idiopathic arthritis, and in the English language. The quality of studies was assessed using a modified checklist that included relevant sources of bias and assessment of quality of HSUV valuation and measurement. A descriptive analysis was conducted, including assessment on reporting of population characteristics and stratification of HSUV by potential health states or population subgroup. RESULTS From 620 identified articles, ten reported HSUV. Seven studies reported HSUV of children with juvenile idiopathic arthritis, and three of adults with a history of juvenile idiopathic arthritis. Population disease activity status and drug treatment were reported in less than half of the studies. Six (out of ten) studies stratified HSUV results for at least one of the potential health state categories, but they represent very specific situations or interventions (e.g. patients receiving different types of physiotherapy or treated with etanercept over time). CONCLUSIONS We have identified critical gaps in the literature reporting HSUV in patients with juvenile idiopathic arthritis including a lack of HSUV measures for distinct health states, particularly in adults with a history of juvenile idiopathic arthritis. The current reported HSUV data in juvenile idiopathic arthritis are insufficient for a full cost-utility analysis with a short or lifetime horizon.
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Affiliation(s)
- Luiza Raquel Grazziotin
- Department of Community Health Sciences, Room 3C56, Health Research Innovation Centre, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
- McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB, Canada
| | - Gillian Currie
- Department of Community Health Sciences, Room 3C56, Health Research Innovation Centre, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
- Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Michelle M A Kip
- Department of Health Technology and Services Research, Faculty of Behavioural, Management and Social Sciences, Technical Medical Centre, University of Twente, Enschede, the Netherlands
| | - Maarten J IJzerman
- Department of Health Technology and Services Research, Faculty of Behavioural, Management and Social Sciences, Technical Medical Centre, University of Twente, Enschede, the Netherlands
- Faculty of Medicine, Dentistry and Health Sciences, Melbourne School of Population and Global Health, University of Melbourne, Parkville, Australia
| | - Marinka Twilt
- Division of Rheumatology, Department of Pediatrics, Cumming School of Medicine, Alberta Children's Hospital, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
| | - Raymond Lee
- Alberta Health Services, Calgary, AB, Canada
| | - Deborah A Marshall
- Department of Community Health Sciences, Room 3C56, Health Research Innovation Centre, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada.
- McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB, Canada.
- O'Brien Institute for Public Health, University of Calgary, Calgary, AB, Canada.
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Xia Q, Campbell JA, Ahmad H, Si L, de Graaff B, Otahal P, Palmer AJ. Health state utilities for economic evaluation of bariatric surgery: A comprehensive systematic review and meta-analysis. Obes Rev 2020; 21:e13028. [PMID: 32497417 DOI: 10.1111/obr.13028] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 03/12/2020] [Accepted: 03/23/2020] [Indexed: 11/27/2022]
Abstract
Health state utilities (HSUs) are health economic metrics that capture and assess health-related quality of life (HRQoL). They are essential in health-economic evaluations when calculating quality-adjusted life years. We investigated published studies reporting bariatric surgery-related HSUs elicited through direct or indirect (multiattribute utility instrument [MAUI]) patient-reported methods (PROSPERO registration number: CRD42019131725). Mean HSUs for different time points and HSU changes over time (where feasible) were meta-analysed using random-effects models. Of the 950 potentially relevant identified studies, n = 28 (2004-2018) qualified for data extraction, with n = 85 unique HSUs elicited mainly from the EQ-5D (88%). Most (75%) studies were published after 2013. The follow-up duration varied between studies and was often limited to 12 months. The pooled mean HSU was 0.72 (0.67-0.76) at baseline/presurgery (n = 18) and 0.84 (0.79-0.89) one-year postsurgery (n = 11), indicating a 0.11 (0.09-0.14) utility unit increment. EQ-5D showed the similar results. This positive difference can be partially explained by BMI and/or co-morbidities status improvement. This study provides a valuable summary of HSUs to future bariatric surgery-related cost-utility models. However, more well-designed higher-quality bariatric-related HSU studies are expected for future reviews to improve the available evidence. We suggest that researchers select an MAUI that is preferentially sensitive to the study population.
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Affiliation(s)
- Qing Xia
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Julie A Campbell
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Hasnat Ahmad
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Lei Si
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia.,The George Institute for Global Health, University of New South Wales, Kensington, New South Wales, Australia
| | - Barbara de Graaff
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Petr Otahal
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Andrew J Palmer
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia.,Centre for Health Economics, School of Population and Global Health, University of Melbourne, Carlton, Victoria, Australia
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Petrou S, Krabuanrat N, Khan K. Preference-Based Health-Related Quality of Life Outcomes Associated with Preterm Birth: A Systematic Review and Meta-analysis. PHARMACOECONOMICS 2020; 38:357-373. [PMID: 31814079 DOI: 10.1007/s40273-019-00865-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
OBJECTIVES Assessments of health-related quality of life outcomes associated with preterm birth provide valuable complementary data to the objective biomedical assessments that have traditionally been reported. The objective of this study was to perform a systematic review and meta-analysis of health utility values associated with preterm birth generated using preference-based approaches to health-related quality of life measurement. METHODS Systematic searches of MEDLINE, Web of Science, EconLit, EMBASE, CINAHL, PsycINFO, the Cochrane Library and SCOPUS were performed, covering the literature from inception of the search engines to 26 June 2018. Studies reporting health utility values estimated using either direct or indirect utility elicitation methods and published in the English language were included. Central descriptive statistics and measures of variability surrounding health utility values for each study and control group, and differences between comparator groups, are reported for each included article. The effect of preterm birth on health utility values was estimated using a hierarchical linear model in a linear mixed-effects meta-regression. RESULTS Of 2139 unique articles retrieved, 20 articles met the inclusion criteria. All but one study used the Health Utilities Index (HUI) Mark 2 (HUI2) or Mark 3 (HUI3) measures as their primary health utility assessment method. All studies reporting health utility values for individuals born preterm or at low birthweight and a control group of individuals born at full term or normal birthweight reported lower utility values in the study groups, regardless of age at assessment, respondent type or valuation method. The meta-regression revealed that preterm birth was associated with a mean utility decrement of 0.066 (95% confidence interval [CI] 0.035-0.098; p < 0.001) after controlling for valuation method, respondent type, administration mode, year of publication, geographical region of study, study setting and age at assessment. CONCLUSION Evidence identified by this review can act as data inputs into future economic evaluations of preventive or treatment interventions for preterm birth. Future research should focus particularly on estimating health utility values during the various stages of adulthood, and incorporating the effects of preterm birth on the preference-based health-related quality of life outcomes of parents and other family members.
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Affiliation(s)
- Stavros Petrou
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Observatory Quarter, Woodstock Road, Oxford, OX2 6GG, UK.
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK.
| | - Natnaree Krabuanrat
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Observatory Quarter, Woodstock Road, Oxford, OX2 6GG, UK
| | - Kamran Khan
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Observatory Quarter, Woodstock Road, Oxford, OX2 6GG, UK
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21
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Schmitz S, Makovski TT, Adams R, van den Akker M, Stranges S, Zeegers MP. Bayesian Hierarchical Models for Meta-Analysis of Quality-of-Life Outcomes: An Application in Multimorbidity. PHARMACOECONOMICS 2020; 38:85-95. [PMID: 31583600 DOI: 10.1007/s40273-019-00843-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND Health-related quality of life (HRQoL) is a key outcome in cost-utility analyses, which are commonly used to inform healthcare decisions. Different instruments exist to evaluate HRQoL, however while some jurisdictions have a preferred system, no gold standard exists. Standard meta-analysis struggles with the variety of outcome measures, which may result in the exclusion of potentially relevant evidence. OBJECTIVE Using a case study in multimorbidity, the objective of this analysis is to illustrate how a Bayesian hierarchical model can be used to combine data across different instruments. The outcome of interest is the slope relating HRQoL to the number of coexisting conditions. METHODS We propose a three-level Bayesian hierarchical model to systematically include a large number of studies evaluating HRQoL using multiple instruments. Random effects assumptions yield instrument-level estimates benefitting from borrowing strength across the evidence base. This is particularly useful where little evidence is available for the outcome of choice for further evaluation. RESULTS Our analysis estimated a reduction in quality of life of 3.8-4.1% per additional condition depending on HRQoL instrument. Uncertainty was reduced by approximately 80% for the instrument with the least evidence. CONCLUSION Bayesian hierarchical models may provide a useful modelling approach to systematically synthesize data from HRQoL studies.
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Affiliation(s)
- Susanne Schmitz
- Competence Center for Methodology and Statistics, Department of Population Health, Luxembourg Institute of Health, 1 A-B, rue Thomas Edison, 1445, Strassen, Luxembourg.
| | - Tatjana T Makovski
- Epidemiology and Public Health Research Unit, Department of Population Health, Luxembourg Institute of Health, Strassen, Luxembourg
- Department of Family Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
- Chairgroup of Complex Genetics and Epidemiology, Nutrition and Metabolism in Translational Research (NUTRIM), Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
| | - Roisin Adams
- National Centre for Pharmacoeconomics, St James's Hospital, Dublin, Ireland
| | - Marjan van den Akker
- Department of Family Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
- Institute of General Practice, Johann Wolfgang Goethe University, Frankfurt am Main, Germany
- Academic Centre of General Practice, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | - Saverio Stranges
- Epidemiology and Public Health Research Unit, Department of Population Health, Luxembourg Institute of Health, Strassen, Luxembourg
- Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- Department of Family Medicine, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Maurice P Zeegers
- Chairgroup of Complex Genetics and Epidemiology, Nutrition and Metabolism in Translational Research (NUTRIM), Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
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Aceituno D, Pennington M, Iruretagoyena B, Prina MA, McCrone P. Health state utility values in schizophrenia: protocol for a systematic review and meta-analysis. EVIDENCE-BASED MENTAL HEALTH 2019; 22:142-144. [PMID: 31126911 PMCID: PMC10270392 DOI: 10.1136/ebmental-2019-300089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/14/2019] [Accepted: 04/29/2019] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Cost-effectiveness analyses that use quality-adjusted life-years (QALYs) allow comparing the value for money of interventions across different health problems. Health state utility values (HSUVs) are crucial to calculate QALYs. These are weights attached to a given health state reflecting preferences in health-related quality of life (HRQoL). In schizophrenia, there is extensive evidence about the consequences of this condition on HRQoL. Besides, several interventions have claimed to be cost-effective in terms of QALYs gained. Despite this evidence, a systematic review of HSUVs has not been conducted. Therefore, we aim to synthesise the evidence about HSUVs in schizophrenia. METHODS AND ANALYSIS We will conduct a systematic review of the literature about HSUVs in people with schizophrenia following the Preferred Reporting Items for Systematic review and Meta-Analysis and the International Society for Pharmacoeconomics and Outcomes Research task force recommendations. The submissions records of eight electronic peer-reviewed databases and three health technology assessment (HTA) agencies will be searched. Quantitative synthesis will be carried out in comparable studies, using random-effects meta-analysis. Heterogeneity will be explored using meta-regression if more than 10 studies per covariate are found. A narrative synthesis and methodological quality of included studies will be also reported. DISCUSSION This review will provide a synthesis of the HSUVs estimated for different states experienced by people with schizophrenia. This will inform analysts when calculating QALYs, using values in a more transparent and accountable manner. Finally, it will shed light on evidence gaps and limitations about this measure in mental health. PROSPERO REGISTRATION NUMBER CRD42019123582.
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Affiliation(s)
- David Aceituno
- Health Service and Population Research, Institute of Psychiatry Psychology and Neuroscience, London, UK
- Department of Psychiatry, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mark Pennington
- Health Service and Population Research, Institute of Psychiatry Psychology and Neuroscience, London, UK
| | - Barbara Iruretagoyena
- Department of Psychiatry, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Matthew A Prina
- Health Service and Population Research, Institute of Psychiatry Psychology and Neuroscience, London, UK
| | - Paul McCrone
- Health Service and Population Research, Institute of Psychiatry Psychology and Neuroscience, London, UK
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Kwon J, Kim SW, Ungar WJ, Tsiplova K, Madan J, Petrou S. Patterns, trends and methodological associations in the measurement and valuation of childhood health utilities. Qual Life Res 2019; 28:1705-1724. [PMID: 30783876 PMCID: PMC6571090 DOI: 10.1007/s11136-019-02121-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2019] [Indexed: 12/13/2022]
Abstract
PURPOSE To systematically assess patterns and temporal changes in the measurement and valuation of childhood health utilities and associations between methodological factors. METHODS Studies reporting childhood health utilities using direct or indirect valuation methods, published by June 2017, were identified through PubMed, Embase, Web of Science, PsycINFO, EconLit, CINAHL, Cochrane Library and PEDE. The following were explored: patterns in tariff application; linear trends in numbers of studies/samples and paediatric cost-utility analyses (CUAs) and associations between them; changes in proportions of studies/samples within characteristic-based categories over pre-specified periods; impact of National Institute for Health and Care Excellence (NICE) guidance on primary UK research and associations between valuation method, age and methodological factors. RESULTS 335 studies with 3974 samples covering all ICD-10 chapters, 23 valuation methods, 12 respondent types and 42 countries were identified by systematic review. 34.0% of samples using indirect methods compatible with childhood applied childhood-derived tariffs. There was no association between numbers of studies/samples and numbers of CUAs. Compared to 1990-2008, 2009-June 2017 saw a significant fall in the proportion of studies using case series; significant compositional changes across ICD-10 chapters and significantly higher sample proportions using childhood-specific and adult-specific indirect valuation methods, and based on pre-adolescents, self-assessment, self-administration and experienced health states. NICE guidance was weakly effective in promoting reference methods. Associations between valuation method, age and methodological factors were significant. CONCLUSION 1990-2017 witnessed significant changes in primary research on childhood health utilities. Health technology assessment agencies should note the equivocal effect of methodological guidance on primary research.
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Affiliation(s)
- Joseph Kwon
- School of Health and Related Research, University of Sheffield, Sheffield, UK
| | - Sung Wook Kim
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
| | - Wendy J Ungar
- Program of Child Health Evaluative Sciences, The Hospital for Sick Children Research Institute, Toronto, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada
| | - Kate Tsiplova
- Program of Child Health Evaluative Sciences, The Hospital for Sick Children Research Institute, Toronto, Canada
| | - Jason Madan
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
| | - Stavros Petrou
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK.
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Lamsal R, Ungar WJ. Impact of growing up with a sibling with a neurodevelopmental disorder on the quality of life of an unaffected sibling: a scoping review. Disabil Rehabil 2019; 43:586-594. [PMID: 31106599 DOI: 10.1080/09638288.2019.1615563] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE Growing up with a sibling with a neurodevelopmental disorder can have positive and negative effects on personal, social and emotional well-being; however, little is known about the impacts on unaffected siblings' quality of life. The purpose of this review was to synthesize evidence from studies evaluating the quality of life of unaffected siblings of children with neurodevelopmental disorders. METHOD A systematic search was conducted on four databases to identify studies reporting the quality of life of unaffected siblings of children with neurodevelopmental disorders. RESULTS Seven studies met the inclusion criteria. Four studies reported impaired quality of life in unaffected siblings of children with neurodevelopmental disorder while three studies reported not the impaired quality of life. Parents reported the lower quality of life for children with or without neurodevelopmental disorders compared to children's self-reports. CONCLUSIONS This review provides the mixed evidence on the quality of life in unaffected siblings of children with neurodevelopmental disorders, and identifies the substantial gap in the research regarding the impacts of children's neurodevelopmental disorders on the quality of life of their unaffected siblings. Assessment of unaffected siblings' quality of life is necessary to identify those who may be at risk and to provide support programs for physical and emotional well-being. Future research examining the quality of life of unaffected siblings across a variety of NDD is needed.Implications for rehabilitationGrowing up with a sibling with a neurodevelopmental disorder influences the personal and social development of the unaffected child.Measuring quality of life can have a meaningful impact on the lives of unaffected siblings of children with neurodevelopmental disorders and their families. Evidence generated from such studies can be used by healthcare providers such as physicians, nurses, psychologists, and social workers to recommend appropriate supports to the family and siblings.
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Affiliation(s)
- Ramesh Lamsal
- Program of Child Health Evaluation Sciences, The Hospital for Sick Children Research Institute, Toronto, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada
| | - Wendy J Ungar
- Program of Child Health Evaluation Sciences, The Hospital for Sick Children Research Institute, Toronto, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada
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Paracha N, Abdulla A, MacGilchrist KS. Systematic review of health state utility values in metastatic non-small cell lung cancer with a focus on previously treated patients. Health Qual Life Outcomes 2018; 16:179. [PMID: 30208899 PMCID: PMC6134713 DOI: 10.1186/s12955-018-0994-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 08/08/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Health state utility values (HSUVs) are an important input to economic evaluations and the choice of HSUV can affect the estimate of relative cost-effectiveness between interventions. This systematic review identified utility scores for patients with metastatic non-small cell lung cancer (mNSCLC), as well as disutilities or utility decrements relevant to the experience of patients with mNSCLC, by treatment line and health state. METHODS The MEDLINE®, Embase and Cochrane Library databases were systematically searched (September 2016) for publications describing HSUVs in mNSCLC in any treatment line. The EQ-5D website, the School of Health and Related Research Health Utilities Database (ScHARRHUD) and major pharmacoeconomic and clinical conferences in 2015-2016 were also queried. Studies in adults with previously treated mNSCLC were selected for further analysis. The information extracted included study design, description of treatment and health state, respondent details, instrument and tariff, HSUV or (dis) utility decrement estimates, quality of study, and appropriateness for use in economic evaluations. RESULTS Of 1883 references identified, 36 publications of 34 studies were included: 19 reported EQ-5D scores; eight reported HSUVs from valuations of vignettes made by members of the public using standard gamble (SG) or time trade-off (TTO); two reported SG or TTO directly elicited from patients; two reported EQ-5D visual analogue scale scores only; one reported Assessment of Quality of Life instrument scores; one reported HSUVs for caregivers to patients with mNSCLC using the 12-item Short-Form Health Survey; and one estimated HSUVs based on expert opinion. The range of HSUVs identified for comparable health states showed how differences in study type, tariff, health state and the measures used can drive variation in HSUV estimates. CONCLUSIONS This systematic review provides a set of published HSUVs that are relevant to the experience of adult patients previously treated for mNSCLC. Our review begins to address the challenge of identifying reliable estimates of utility values in mNSCLC that are suitable for use in economic evaluations, and also highlights how varying estimates result from differences in methodology.
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Affiliation(s)
| | - Ahmed Abdulla
- F. Hoffmann-La Roche AG, Basel, Switzerland
- Present address: Digipharm, Zug, Switzerland
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