1
|
Roudijk B, Jonker MF, Bailey H, Pullenayegum E. A Direct Comparison Between Discrete Choice With Duration and Composite Time Trade-Off Methods: Do They Produce Similar Results? VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2024; 27:1280-1288. [PMID: 38843979 DOI: 10.1016/j.jval.2024.05.016] [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: 01/09/2024] [Revised: 05/02/2024] [Accepted: 05/17/2024] [Indexed: 07/14/2024]
Abstract
OBJECTIVES Discrete choice experiments including a duration attribute (DCEd) represent a promising candidate method for valuing health-related quality-of-life instruments. However, it has not been established that DCEd can produce similar results as composite time trade-off (cTTO) or EuroQol Valuation Technology (EQ-VT) valuations of the EQ-5D-5L instrument. This study provides a direct comparison between cTTO and EQ-VT, and DCEd valuation methods. METHODS An EQ-VT study was conducted in Trinidad and Tobago to value the EQ-5D-5L. 1079 respondents each completed 10 cTTO tasks and 12 discrete choice experiments tasks without a duration attribute. A separate sample of 970 respondents each completed 18 split-triplet DCEd tasks. Several regression models were applied to the EQ-VT data, and the DCEd data were analyzed using mixed logit models with an exponential discount rate. The estimated values were compared using scatterplots and Bland-Altman plots. RESULTS The ordering of dimensions was identical in level 5 for cTTO/EQ-VT and DCEd models, with pain/discomfort being the most important dimension and usual activities being least important. cTTO/EQ-VT models produced a value for state 55555 ranging between -0.52 and -0.69, whereas this was -0.543 for the nonlinear mixed logit model for the DCEd data. Scatterplots and Bland-Altman plots suggested excellent agreement between cTTO/EQ-VT and DCEd-based estimates. CONCLUSIONS CTTO/EQ-VT and DCEd valuations produce similar results when correcting DCEd for nonlinear time preferences. The ordering of importance of the dimensions and scale are identical, suggesting that the 2 methods measure the same construct and produce similar results.
Collapse
Affiliation(s)
- Bram Roudijk
- EuroQol Research Foundation, Rotterdam, The Netherlands; Department of Psychiatry, Erasmus University Medical Center, Rotterdam, The Netherlands.
| | - Marcel F Jonker
- Erasmus School of Health Policy and Management, Erasmus University Rotterdam, Rotterdam, The Netherlands; Erasmus Centre for Health Economics Rotterdam, Erasmus University Rotterdam, Rotterdam, The Netherlands; Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Henry Bailey
- Department of Economics, The University of the West Indies, St Augustine Campus, St Augustine, Trinidad and Tobago; HEU, Centre for Health Economics, The University of the West Indies, St Augustine Campus, St Augustine, Trinidad and Tobago
| | - Eleanor Pullenayegum
- Child Health Evaluative Sciences, The Hospital for Sick Children, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
2
|
Xie F, Xie S, Pullenayegum E, Ohinmaa A. Understanding Canadian stakeholders' views on measuring and valuing health for children and adolescents: a qualitative study. Qual Life Res 2024; 33:1415-1422. [PMID: 38438665 PMCID: PMC11045599 DOI: 10.1007/s11136-024-03618-y] [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] [Accepted: 01/24/2024] [Indexed: 03/06/2024]
Abstract
OBJECTIVE Valuing child health is critical to assessing the value of healthcare interventions for children. However, there remain important methodological and normative issues. This qualitative study aimed to understand the views of Canadian stakeholders on these issues. METHODS Stakeholders from health technology assessment (HTA) agencies, pharmaceutical industry representatives, healthcare providers, and academic researchers/scholars were invited to attend an online interview. Semi-structured interviews were designed to focus on: (1) comparing the 3-level and 5-level versions of the EQ-5D-Y; (2) source of preferences for valuation (adults vs. children); (3) perspective of valuation tasks; and (4) methods for valuation (discrete choice experiment [DCE] and its variants versus time trade-off [TTO]). Participants were probed to consider HTA guidelines, cognitive capacity, and potential ethical concerns. All interviews were recorded and transcribed verbatim. Framework analysis with the incidence density method was used to analyze the data. RESULTS Fifteen interviews were conducted between May and September 2022. 66.7% (N = 10) of participants had experience with economic evaluations, and 86.7% (N = 13) were parents. Eleven participants preferred the EQ-5D-Y-5L. 12 participants suggested that adolescents should be directly involved in child health valuation from their own perspective. The participants were split on the ethical concerns. Eight participants did not think that there was ethical concern. 11 participants preferred DCE to TTO. Among the DCE variants, 6 participants preferred the DCE with duration to the DCE with death. CONCLUSIONS Most Canadian stakeholders supported eliciting the preferences of adolescents directly from their own perspective for child health valuation. DCE was preferred if adolescents are directly involved.
Collapse
Affiliation(s)
- Feng Xie
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada.
- Centre for Health Economics and Policy Analysis, McMaster University, Hamilton, Canada.
| | - Shitong Xie
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Eleanor Pullenayegum
- The Hospital for Sick Children, Toronto, Canada
- Dalla Lana School of Public Health, The University of Toronto, Toronto, Canada
| | - Arto Ohinmaa
- School of Public Health, University of Alberta, Edmonton, Canada
| |
Collapse
|
3
|
Jumamyradov M, Craig BM, Rivero-Arias O, Jakubczyk M. Child health valuation protocol for a discrete choice experiment comparing paired comparison and kaizen tasks and estimating US EQ-5D-Y-3L values on an experience scale. BMJ Open 2023; 13:e077256. [PMID: 37879694 PMCID: PMC10603523 DOI: 10.1136/bmjopen-2023-077256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 10/02/2023] [Indexed: 10/27/2023] Open
Abstract
INTRODUCTION A decade ago, the first national valuation study of the EQ-5D-Y-3L (Y-3L) involved a discrete choice experiment (DCE) that asked 4155 US adult respondents to complete 40 paired comparisons, choosing between two dying children. Instead of choosing between dying children, the respondents in this novel protocol are asked whether 'being in a coma' is better or worse than experiencing 'health problems' (ie, experience scale) and how they would relieve health problems (ie, kaizen tasks). Our aims are to compare the preference evidence of the paired comparison and kaizen tasks and to conduct a DCE for the valuation of Y-3L profiles on an experience scale. METHODS AND ANALYSIS Under this protocol, we will conduct an online survey that collects preference evidence from 600 US adult respondents on the health of a 10-year-old child for a week. Across all scenarios, each child will be described as either being 'in a coma' or having 'health problems', namely five three-level attributes (Y-3L). In this DCE, each respondent will be randomly assigned to one of four D-efficient blocks, including five coma comparisons (ie, Y-3L vs coma), 10 paired comparisons (Y-3L vs Y-3L) and 10 kaizen tasks (preference paths). In addition to comparing evidence by task (aim 2), the analysis plan includes the estimation of main-effects conditional logit models to create a Y-3L value set on an 'experience scale' where positive (negative) experiences have positive (negative) values (0 is 'being in a coma' and 1 is full health). ETHICS AND DISSEMINATION The institutional review board (IRB) (Advarra) determined that this project (Pro00072276) is exempt from IRB oversight based on DHHS 45 CFR 46.104(d)(2) and is not subject to requirements for continuing review. The results will be prepared for publication in peer-reviewed journals and presented at scientific meetings. The data and code will be made available on reasonable request.
Collapse
Affiliation(s)
- Maksat Jumamyradov
- Department of Economics, University of South Florida, Tampa, Florida, USA
| | | | - Oliver Rivero-Arias
- Nuffield Department of Population Health, National Perinatal Epidemiology Unit, University of Oxford, Oxford, UK
| | - Michał Jakubczyk
- Division of Decision Analysis and Support, SGH Warsaw School of Economics, Warsaw, Poland
| |
Collapse
|
4
|
Jantarakolica T, Wanitphakdeedecha R, Yan C, Yogya Y, Manuskiatti W, Sudhipongpracha T. Dermatology Life Quality Index in Thai Patients with Facial Port-Wine Stains. Dermatol Ther (Heidelb) 2023; 13:2375-2386. [PMID: 37710079 PMCID: PMC10539252 DOI: 10.1007/s13555-023-01011-0] [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: 05/23/2023] [Accepted: 08/10/2023] [Indexed: 09/16/2023] Open
Abstract
INTRODUCTION Port-wine stains (PWS) are congenital capillary abnormalities caused by immature, venule-like vasculature that progressively dilates due to poor endothelial cell differentiation. PWS affects between 0.3% and 0.9% of newborns, with 90% of cases occurring on the face. Individuals with facial PWS and their parents had a significant negative impairment on their quality of life (QoL) and also suffered from psychological disabilities. METHODS This was a cross-sectional questionnaire-based survey study in Thailand from July 2021 to April 2022. The questionnaires included demographic data, subjective evaluation (SE), and the Dermatology Life Quality Index (DLQI). The questionnaire was performed with a full scale and adjusted scale of validity and reliability test of DLQI using factor analysis and Cronbach's alpha. The study outcome was a subjective evaluation and DLQI in patients who received pulsed dye laser (PDL) treatment. RESULTS Of the 54 patients, 35.2% (19) are male, and 64.8% (35) are female. Regarding age groups, 64.8% (35) are below 5 years old, and 35.2% (19) are older than 5 years. SE results showed that males evaluated an improvement of the facial PWS lesion significantly better than females (P < 0.05). The older age group graded the percentage of improvement better than the younger age group (P < 0.01). The result of the DLQI showed no difference in DLQI between gender. Older age result resulted in a significantly different DLQI compared with younger age (P < 0.01). Parent-reported DLQI improvement was less than self-reported DLQI improvement in patients with PWS treated with PDL (P < 0.05). Concerning the instrument of the study, the validity and reliability analysis of the DLQI questionnaire using factor analysis and Cronbach's alpha have been performed. The adjusted scale with the 5-item DLQI questionnaire is more appropriate in terms validity and reliability. CONCLUSION This study demonstrates that facial PWS reduces the QoL as measured by DLQI. We discovered that the QoL of patients and parents with PWS was significantly impaired. The main influencing factors were older age, the improved perception between gender, and PDL treatments. In addition, we found only five questions that are reliable for PWS. The adjusted five-item DLQI questionnaires are more appropriate regarding validity and reliability. TRIAL REGISTRATION NUMBER TCTR20230210001, COA no. si 1059/2020.
Collapse
Affiliation(s)
| | - Rungsima Wanitphakdeedecha
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Pran-Nok Road, Bangkok, 10700, Thailand.
- College of Interdisciplinary Studies, Thammasat University, Bangkok, Thailand.
| | - Chadakan Yan
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Pran-Nok Road, Bangkok, 10700, Thailand
| | - Yuri Yogya
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Pran-Nok Road, Bangkok, 10700, Thailand
| | - Woraphong Manuskiatti
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Pran-Nok Road, Bangkok, 10700, Thailand
| | | |
Collapse
|
5
|
Valcárcel-Nazco C, Ramallo-Fariña Y, Linertová R, Ramos-Goñi JM, García-Pérez L, Serrano-Aguilar P. Health-Related Quality of Life and Perceived Burden of Informal Caregivers of Patients with Rare Diseases in Selected European Countries. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19138208. [PMID: 35805867 PMCID: PMC9266302 DOI: 10.3390/ijerph19138208] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/30/2022] [Accepted: 07/01/2022] [Indexed: 11/16/2022]
Abstract
Most of rare disease (RD) patients are assisted in their homes by their family as informal caregivers, causing a substantial burden among family members devoted to care. The role of informal caregivers has been associated with increased levels of stress, poor physical/mental health and impaired HRQOL. The present study assessed the impact on HRQOL and perceived burden of long-term informal caregiving, as well as the inter-relationships of individuals affected by different RD in six European countries, taking advantage of the data provided by the BURQOL-RD project (France, Germany, Italy, Spain, Sweden and UK). Correlation analysis was used to explore the relation between caregiver HRQOL and caregiver burden (Zarit Burden Interview). Multinomial logistic regression models were used to explore the role of explanatory variables on each domain of caregivers HRQOL measured by EQ-5D. Caregivers' HRQOL is inversely correlated with burden of caring. Mobility dimension of EQ-5D was significantly associated with patients age, time devoted to care by secondary caregivers, patient gender and patient utility index. Patients' age, burden scores and patient utility index significantly predict the capacity of caregivers to perform activities of daily living. Employed caregivers are less likely of reporting 'slight problems' in pain/discomfort dimensions than unemployed caregivers. The EQ-5D instrument is sensitive to measure differences in HRQOL between caregivers with different levels of burden of care.
Collapse
Affiliation(s)
- Cristina Valcárcel-Nazco
- Fundación Canaria Instituto de Investigación Sanitaria de Canarias (FIISC), 38109 Santa Cruz de Tenerife, Spain; (C.V.-N.); (Y.R.-F.); (L.G.-P.)
- Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), 28029 Madrid, Spain;
- Research Network on Health Services in Chronic Diseases (REDISSEC), 28029 Madrid, Spain;
| | - Yolanda Ramallo-Fariña
- Fundación Canaria Instituto de Investigación Sanitaria de Canarias (FIISC), 38109 Santa Cruz de Tenerife, Spain; (C.V.-N.); (Y.R.-F.); (L.G.-P.)
- Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), 28029 Madrid, Spain;
- Research Network on Health Services in Chronic Diseases (REDISSEC), 28029 Madrid, Spain;
| | - Renata Linertová
- Fundación Canaria Instituto de Investigación Sanitaria de Canarias (FIISC), 38109 Santa Cruz de Tenerife, Spain; (C.V.-N.); (Y.R.-F.); (L.G.-P.)
- Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), 28029 Madrid, Spain;
- Research Network on Health Services in Chronic Diseases (REDISSEC), 28029 Madrid, Spain;
- Correspondence: ; Tel.: +34-922-47-83-24
| | - Juan Manuel Ramos-Goñi
- Research Network on Health Services in Chronic Diseases (REDISSEC), 28029 Madrid, Spain;
- EuroQol Research Foundation, 3068 AV Rotterdam, The Netherlands
| | - Lidia García-Pérez
- Fundación Canaria Instituto de Investigación Sanitaria de Canarias (FIISC), 38109 Santa Cruz de Tenerife, Spain; (C.V.-N.); (Y.R.-F.); (L.G.-P.)
- Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), 28029 Madrid, Spain;
- Research Network on Health Services in Chronic Diseases (REDISSEC), 28029 Madrid, Spain;
| | - Pedro Serrano-Aguilar
- Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), 28029 Madrid, Spain;
- Research Network on Health Services in Chronic Diseases (REDISSEC), 28029 Madrid, Spain;
- Servicio de Evaluación del Servicio Canario de la Salud (SESCS), 38109 Santa Cruz de Tenerife, Spain
| |
Collapse
|
6
|
Bailey C, Howell M, Raghunandan R, Salisbury A, Chen G, Coast J, Craig JC, Devlin NJ, Huynh E, Lancsar E, Mulhern BJ, Norman R, Petrou S, Ratcliffe J, Street DJ, Howard K, Viney R. Preference Elicitation Techniques Used in Valuing Children's Health-Related Quality-of-Life: A Systematic Review. PHARMACOECONOMICS 2022; 40:663-698. [PMID: 35619044 PMCID: PMC9270310 DOI: 10.1007/s40273-022-01149-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/18/2022] [Indexed: 05/04/2023]
Abstract
BACKGROUND AND OBJECTIVES Valuing children's health states for use in economic evaluations is globally relevant and is of particular relevance in jurisdictions where a cost-utility analysis is the preferred form of analysis for decision making. Despite this, the challenges with valuing child health mean that there are many remaining questions for debate about the approach to elicitation of values. The aim of this paper was to identify and describe the methods used to value children's health states and the specific issues that arise in the use of these methods. METHODS We conducted a systematic search of electronic databases to identify studies published in English since 1990 that used preference elicitation methods to value child and adolescent (under 18 years of age) health states. Eligibility criteria comprised valuation studies concerning both child-specific patient-reported outcome measures and child health states defined in other ways, and methodological studies of valuation approaches that may or may not have yielded a value set algorithm. RESULTS A total of 77 eligible studies were identified from which data on country setting, aims, condition (general population or clinically specific), sample size, age of respondents, the perspective that participants were asked to adopt, source of values (respondents who completed the preference elicitation tasks) and methods questions asked were extracted. Extracted data were classified and evaluated using narrative synthesis methods. The studies were classified into three groups: (1) studies comparing elicitation methods (n = 30); (2) studies comparing perspectives (n = 23); and (3) studies where no comparisons were presented (n = 26); selected studies could fall into more than one group. Overall, the studies varied considerably both in methods used and in reporting. The preference elicitation tasks included time trade-off, standard gamble, visual analogue scaling, rating/ranking, discrete choice experiments, best-worst scaling and willingness to pay elicited through a contingent valuation. Perspectives included adults' considering the health states from their own perspective, adults taking the perspective of a child (own, other, hypothetical) and a child/adolescent taking their own or the perspective of another child. There was some evidence that children gave lower values for comparable health states than did adults that adopted their own perspective or adult/parents that adopted the perspective of children. CONCLUSIONS Differences in reporting limited the conclusions that can be formed about which methods are most suitable for eliciting preferences for children's health and the influence of differing perspectives and values. Difficulties encountered in drawing conclusions from the data (such as lack of consensus and poor reporting making it difficult for users to choose and interpret available values) suggest that reporting guidelines are required to improve the consistency and quality of reporting of studies that value children's health using preference-based techniques.
Collapse
Affiliation(s)
- Cate Bailey
- Health Economics Unit, Melbourne School of Population and Global Health, University of Melbourne, Carlton, Melbourne, VIC, Australia.
| | - Martin Howell
- School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Rakhee Raghunandan
- School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Amber Salisbury
- School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Gang Chen
- Centre for Health Economics, Monash University, Melbourne, VIC, Australia
| | - Joanna Coast
- Health Economics Bristol, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Jonathan C Craig
- College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Nancy J Devlin
- Centre for Health Policy, University of Melbourne, Melbourne, VIC, Australia
| | - Elisabeth Huynh
- Department of Health Services and Policy Research, Research School of Population Health, Australian National University, Canberra, ACT, Australia
| | - Emily Lancsar
- Department of Health Services and Policy Research, Research School of Population Health, Australian National University, Canberra, ACT, Australia
| | - Brendan J Mulhern
- Centre for Health Economics, Research and Evaluation (CHERE), University of Technology Sydney, Sydney, NSW, Australia
| | - Richard Norman
- School of Population Health, Curtin University, Perth, WA, Australia
| | - Stavros Petrou
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Julie Ratcliffe
- Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, SA, Australia
| | - Deborah J Street
- Centre for Health Economics, Research and Evaluation (CHERE), University of Technology Sydney, Sydney, NSW, Australia
| | - Kirsten Howard
- School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Rosalie Viney
- Centre for Health Economics, Research and Evaluation (CHERE), University of Technology Sydney, Sydney, NSW, Australia
| |
Collapse
|
7
|
Ramos-Goñi JM, Estévez-Carrillo A, Rivero-Arias O, Rowen D, Mott D, Shah K, Oppe M. Does Changing the Age of a Child to be Considered in 3-Level Version of EQ-5D-Y Discrete Choice Experiment-Based Valuation Studies Affect Health Preferences? VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2022; 25:1196-1204. [PMID: 35379562 DOI: 10.1016/j.jval.2022.03.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 12/22/2021] [Accepted: 03/02/2022] [Indexed: 05/19/2023]
Abstract
OBJECTIVES There has been some debate about the choice of perspective and the age of the child considered when completing preference elicitation tasks in the 3-level version of EQ-5D-Y (EQ-5D-Y-3L) valuation protocol. This study aimed to clarify the impact on latent scale EQ-5D-Y-3L values of varying the age of the child experiencing the health state considered by respondents completing the discrete choice experiment (DCE) tasks of the protocol. METHODS We conducted an online DCE with a representative sample of 1000 adults in the United Kingdom and 1000 adults in the United States. Respondents selected the health state they prefer from a series of DCE paired EQ-5D-Y-3L health state comparisons using their own perspective and that of a hypothetical child from the following age groups: "5-7 years old," "8-10 years old," "11-13 years old," and "14-15 years old." Data analysis was conducted using separate multinomial logit models for each perspective and country. We also estimated combined models including data from each possible pair of perspectives and used interactions between EQ-5D-Y-3L levels and perspective to determine whether any differences were statistically significant. RESULTS No statistically significant differences in coefficients between perspectives were found in the United States. In the United Kingdom, there were differences between the own perspective and the 5 to 7 years old perspective (looking after myself level 3) and between the 5 to 7 years old perspective and the 8 to 10 years old perspective (usual activities level 3). CONCLUSIONS Our results suggest that there is minimal impact on latent scale values when using different ages of the hypothetical child in the current EQ-5D-Y-3L valuation protocol.
Collapse
Affiliation(s)
| | | | - Oliver Rivero-Arias
- Maths in Health, Rotterdam, The Netherlands; National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, England, UK
| | - Donna Rowen
- School of Health and Related Research, University of Sheffield, Sheffield, England, UK
| | - David Mott
- Office of Health Economics, London, England, UK
| | - Koonal Shah
- School of Health and Related Research, University of Sheffield, Sheffield, England, UK; PHMR, London, England, UK; National Institute for Health and Care Excellence, London, England, UK
| | - Mark Oppe
- Maths in Health, Rotterdam, The Netherlands
| |
Collapse
|
8
|
Golicki D, Młyńczak K. Measurement Properties of the EQ-5D-Y: A Systematic Review. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2022; 25:S1098-3015(22)02001-0. [PMID: 35752534 DOI: 10.1016/j.jval.2022.05.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 03/16/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVES This study aimed to perform a systematic review of published evidence on the psychometric properties of 3-level version of EQ-5D-Y and 5-level version of EQ-5D-Y (EQ-5D-Y-5L). METHODS A literature search on the MEDLINE, Embase, and EuroQol website (until June 2021) was conducted. Original studies on EQ-5D-Y psychometric properties such as feasibility, distribution properties (ceiling and floor effects), reliability (test-retest, interrater, intermodal), validity (known-groups, convergent), and responsiveness, published as full-text articles in English, were included. Studies on experimental EQ-5D-Y versions were excluded. The following data were pooled using random effects models: missing values, the ceiling effect, and correlations coefficients with other measures. RESULTS A total of 47 studies (inclusive of 7 on EQ-5D-Y-5L) containing data from 45 310 children and 2690 proxy respondents representing 15 countries were included. These studies were characterized as being high quality according to the quality index. The most represented areas were school populations and musculoskeletal diseases and orthopedics. The EQ-5D-Y dimensions, EQ visual analog scale, and EQ index were reported in 89%, 77%, and 26% of studies, respectively. Most articles addressed validity (known-groups, n = 27; convergent, n = 21) and reliability (test-retest and interrater, n = 10 each). Convergent validity studies showed that, where the assessment of the child's functioning at school is required, EQ-5D-Y should be supplemented with other school-specific measures. CONCLUSIONS This systematic review provides a summary of measurement properties and the psychometric performance of 3-level version of EQ-5D-Y and EQ-5D-Y-5L. The existing evidence supports using the EQ-5D-Y descriptive system and EQ visual analog scale in children and adolescent populations. Further research on test-retest reliability and the responsiveness of the EQ-5D-Y index obtained with child-specific value sets is needed.
Collapse
Affiliation(s)
- Dominik Golicki
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Warsaw, Poland.
| | - Katarzyna Młyńczak
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Warsaw, Poland
| |
Collapse
|
9
|
Rivero-Arias O, Buckell J, Allin B, Craig BM, Ayman G, Knight M. Using stated-preferences methods to develop a summary metric to determine successful treatment of children with a surgical condition: a study protocol. BMJ Open 2022; 12:e062833. [PMID: 35680263 PMCID: PMC9185585 DOI: 10.1136/bmjopen-2022-062833] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION Wide variation in the management of key paediatric surgical conditions in the UK has likely resulted in outcomes for some children being worse than they could be. Consequently, it is important to reduce unwarranted variation. However, major barriers to this are the inability to detect differences between observed and expected hospital outcomes based on the casemix of the children they have treated, and the inability to detect variation in significant outcomes between hospitals. A stated-preference study has been designed to estimate the value key stakeholders place on different elements of the outcomes for a child with a surgical condition. This study proposes to develop a summary metric to determine what represents successful treatment of children with surgical conditions. METHODS AND ANALYSIS Preferences from parents, individuals treated for surgical conditions as infants/children, healthcare professionals and members of the public will be elicited using paired comparisons and kaizen tasks. A descriptive framework consisting of seven attributes representing types of operations, infections treated in hospital, quality of life and survival was identified. An experimental design has been completed using a D-efficient design with overlap in three attributes and excluding implausible combinations. All participants will be presented with an additional choice task including a palliative scenario that will be used as an anchor. The survey will be administered online. Primary analysis will estimate a mixed multinomial logit model. A traffic light system to determine what combination of attributes and levels represent successful treatment will be created. ETHICS AND DISSEMINATION Ethics approval to conduct this study has been obtained from the Medical Sciences Inter-Divisional Research Ethics Committee (IDREC) at the University of Oxford (R59631/RE001-05). We will disseminate all of our results in peer-review publications and scientific presentations. Findings will be additionally disseminated through relevant charities and support groups and professional organisations.
Collapse
Affiliation(s)
- Oliver Rivero-Arias
- National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - John Buckell
- Health Economics Research Centre, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Benjamin Allin
- National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
- Chelsea and Westminster Hospital, London, UK
| | - Benjamin M Craig
- Department of Economics, University of South Florida, Tampa, Florida, USA
| | - Goher Ayman
- National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Marian Knight
- National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| |
Collapse
|
10
|
Kwon J, Freijser L, Huynh E, Howell M, Chen G, Khan K, Daher S, Roberts N, Harrison C, Smith S, Devlin N, Howard K, Lancsar E, Bailey C, Craig J, Dalziel K, Hayes A, Mulhern B, Wong G, Ratcliffe J, Petrou S. Systematic Review of Conceptual, Age, Measurement and Valuation Considerations for Generic Multidimensional Childhood Patient-Reported Outcome Measures. PHARMACOECONOMICS 2022; 40:379-431. [PMID: 35072935 PMCID: PMC9007803 DOI: 10.1007/s40273-021-01128-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/19/2021] [Indexed: 05/20/2023]
Abstract
BACKGROUND AND AIMS Patient-reported outcome measures (PROMs) for children (aged ≤ 18 years) present methodological challenges. PROMs can be categorised by their diverse underlying conceptual bases, including functional, disability and health (FDH) status; quality of life (QoL); and health-related quality of life (HRQoL). Some PROMs are designed to be accompanied by preference weights. PROMs should account for childhood developmental differences by incorporating age-appropriate health/QoL domains, guidance on respondent type(s) and design. This systematic review aims to identify generic multidimensional childhood PROMs and synthesise their characteristics by conceptual basis, target age, measurement considerations, and the preference-based value sets that accompany them. METHODS The study protocol was registered in the Prospective Register of Systematic Reviews (CRD42021230833), and reporting followed Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We conducted systematic database searches for generic multidimensional childhood PROMs covering the period 2012-2020, which we combined with published PROMs identified by an earlier systematic review that covered the period 1992-2011. A second systematic database search identified preference-based value sets for generic multidimensional PROMs. The PROMs were categorised by conceptual basis (FDH status, QoL and HRQoL) and by target age (namely infants and pre-schoolers aged < 5 years, pre-adolescents aged 5-11, adolescents aged 12-18 and multi-age group coverage). Descriptive statistics assessed how PROM characteristics (domain coverage, respondent type and design) varied by conceptual basis and age categories. Involvement of children in PROM development and testing was assessed to understand content validity. Characteristics of value sets available for the childhood generic multidimensional PROMs were identified and compared. RESULTS We identified 89 PROMs, including 110 versions: 52 FDH, 29 QoL, 12 HRQoL, nine QoL-FDH and eight HRQoL-FDH measures; 20 targeted infants and pre-schoolers, 29 pre-adolescents, 24 adolescents and 37 for multiple age groups. Domain coverage demonstrated development trajectories from observable FDH aspects in infancy through to personal independence and relationships during adolescence. PROMs targeting younger children relied more on informant report, were shorter and had fewer ordinal scale points. One-third of PROMs were developed following qualitative research or surveys with children or parents for concept elicitation. There were 21 preference-based value sets developed by 19 studies of ten generic multidimensional childhood PROMs: seven were based on adolescents' stated preferences, seven were from adults from the perspective of or on behalf of the child, and seven were from adults adopting an adult's perspective. Diverse preference elicitation methods were used to elicit values. Practices with respect to anchoring values on the utility scale also varied considerably. The range and distribution of values reflect these differences, resulting in value sets with notably different properties. CONCLUSION Identification and categorisation of generic multidimensional childhood PROMs and value sets by this review can aid the development, selection and interpretation of appropriate measures for clinical and population research and cost-effectiveness-based decision-making.
Collapse
Affiliation(s)
- Joseph Kwon
- School of Health and Related Research, University of Sheffield, Sheffield, England, UK
| | - Louise Freijser
- Centre for Health Policy, University of Melbourne, Melbourne, Australia
| | - Elisabeth Huynh
- Department of Health Services Research and Policy, Australian National University, Canberra, Australia
| | - Martin Howell
- School of Public Health, University of Sydney, Sydney, Australia
| | - Gang Chen
- Centre for Health Economics, Monash University, Melbourne, Australia
| | - Kamran Khan
- Centre for Health Economics at Warwick, University of Warwick, Coventry, England, UK
| | - Shahd Daher
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, England, UK
| | - Nia Roberts
- Bodleian Health Care Libraries, University of Oxford, Oxford, England, UK
| | - Conrad Harrison
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, England, UK
| | - Sarah Smith
- Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, England, UK
| | - Nancy Devlin
- Centre for Health Policy, University of Melbourne, Melbourne, Australia
| | - Kirsten Howard
- School of Public Health, University of Sydney, Sydney, Australia
| | - Emily Lancsar
- Department of Health Services Research and Policy, Australian National University, Canberra, Australia
| | - Cate Bailey
- Centre for Health Policy, University of Melbourne, Melbourne, Australia
| | - Jonathan Craig
- College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Kim Dalziel
- Health Economics Unit, University of Melbourne, Melbourne, Australia
| | - Alison Hayes
- School of Public Health, University of Sydney, Sydney, Australia
| | - Brendan Mulhern
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Sydney, Australia
| | - Germaine Wong
- School of Public Health, University of Sydney, Sydney, Australia
| | - Julie Ratcliffe
- Caring, Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, Australia
| | - Stavros Petrou
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, England, UK
| |
Collapse
|
11
|
Amien R, Scott D, Verstraete J. Performance of the EQ-5D-Y Interviewer Administered Version in Young Children. CHILDREN (BASEL, SWITZERLAND) 2022; 9:93. [PMID: 35053718 PMCID: PMC8775050 DOI: 10.3390/children9010093] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/03/2022] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
(1) Background: An estimated 78% of South African children aged 9-10 years have not mastered basic reading, therefore potentially excluding them from self-reporting on health-related outcome measures. Thus, the aim of this study was to compare the performance of the EQ-5D-Y-3L self-complete to the newly developed interviewer-administered version in children 8-10 years. (2) Methods: Children (n = 207) with chronic respiratory illnesses, functional disabilities, orthopaedic conditions and from the general population completed the EQ-5D-Y-3L self-complete and interviewer-administered versions, Moods and Feelings Questionnaire (MFQ) and Faces Pain Scale-Revised (FPS-R). A functional independence measure (WeeFIM) was completed by the researcher. (3) Results: The 8-year-olds had significantly higher missing responses (x2 = 14.23, p < 0.001) on the self-complete version. Known-group and concurrent validity were comparable across dimensions, utility and VAS scores for the two versions. The dimensions showed low to moderate convergent validity with similar items on the MFQ, FPS-R and WeeFIM with significantly higher correlations between the interviewer-administered dimensions of Mobility and WeeFIM mobility total (z = 1.91, p = 0.028) and Looking After Myself and WeeFIM self-care total (z = 3.24, p = 0.001). Children preferred the interviewer-administered version (60%) (x2 = 21.87, p < 0.001) with 22% of the reasons attributed to literacy level. (4) Conclusions: The EQ-5D-Y-3L interviewer-administered version is valid and reliable in children aged 8-10 years. The results were comparable to the self-complete version indicating that versions can be used interchangeably.
Collapse
Affiliation(s)
- Razia Amien
- Division of Physiotherapy, Faculty of Health and Rehabilitation Sciences, University of Cape Town, Cape Town 7701, South Africa;
| | - Desiree Scott
- Division of Physiotherapy, Faculty of Health and Rehabilitation Sciences, University of Cape Town, Cape Town 7701, South Africa;
| | - Janine Verstraete
- Division of Pulmonology, Department of Paediatric and Child Health, University of Cape Town, Cape Town 7701, South Africa;
| |
Collapse
|
12
|
Robinson T, Hill S, Oluboyede Y. Developing a preference-based measure for weight-specific health-related quality of life in adolescence: the WAItE UK valuation study protocol. BMJ Open 2021; 11:e054203. [PMID: 34785557 PMCID: PMC8596058 DOI: 10.1136/bmjopen-2021-054203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Adolescent obesity is a public health problem in the UK. The Weight-Specific Adolescent Instrument for Economic Evaluation (WAItE) has been developed as the first weight-specific health-related quality of life measure appropriate for economic evaluation, but currently cannot be used to generate quality-adjusted life years (QALYs), which are the basis of cost-utility analysis. Generic measures (such as the EQ-5D-Y or CHU-9D) may be insensitive to small but important health changes in overweight or obese adolescents. This study aims to generate a preference-based scoring algorithm for the WAItE. METHODS AND ANALYSIS A discrete choice experiment (DCE) will be administered to value health states described by the WAItE classification system. These health states will be presented to members of the adult general population of the UK via an online survey. A range of regression models will be used to produce the utility algorithm for the WAItE. The DCE-visual analogue scale and time trade-off (TTO) anchoring methods will be used anchor the value set on to the 0-1 QALY scale. ETHICS AND DISSEMINATION The Newcastle University Medical School Ethics Committee approved the study (references 4772/2020 (DCE) and 9978/2020 (TTO)). The developed algorithm can be applied to future economic evaluations of weight management interventions and treatments for adolescents.
Collapse
Affiliation(s)
- Tomos Robinson
- Population Health Sciences Institute, Newcastle University Faculty of Medical Sciences, Newcastle upon Tyne, UK
| | - Sarah Hill
- Population Health Sciences Institute, Newcastle University Faculty of Medical Sciences, Newcastle upon Tyne, UK
| | - Yemi Oluboyede
- Population Health Sciences Institute, Newcastle University Faculty of Medical Sciences, Newcastle upon Tyne, UK
| |
Collapse
|
13
|
Prevolnik Rupel V, Ramos-Goñi JM, Ogorevc M, Kreimeier S, Ludwig K, Greiner W. Comparison of Adult and Adolescent Preferences Toward EQ-5D-Y-3L Health States. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2021; 24:1350-1359. [PMID: 34452716 PMCID: PMC8404973 DOI: 10.1016/j.jval.2021.03.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 05/24/2023]
Abstract
OBJECTIVES The international EQ-5D-Y-3L valuation protocol suggests obtaining preferences for EQ-5D-Y-3L health states from a sample of the general adult population. There is discussion around involving children and adolescents in the processes of preference elicitation and decision making. The objective of this study was to compare the preferences for EQ-5D-Y-3L obtained from adolescents for themselves to those of adults considering a hypothetical 10-year-old child in Germany, Slovenia, and Spain. METHODS A sample of a minimum of 700 adolescents and 1000 adults in each country was recruited through online panels. An online discrete choice experiment was used to obtain health-state preferences. For the purposes of comparison, all coefficients were rescaled to a 1 (best) to 0 (worst) scale. The differences between preferences in both samples were analyzed via the relative attribute importance of health dimensions from the mixed logit models. RESULTS Statistically significant differences between the preferences for EQ-5D-Y-3L states given by the 2 samples were observed in all 3 countries. The overall relative attribute importance was similar between adolescents and adults; adolescents usually gave more importance to mobility and self-care, and less to anxiety/depression. The rank-order of the dimension levels between adults and adolescents differs in all 3 countries. CONCLUSIONS Preferences toward EQ-5D-Y-3L states differ if estimated by adults taking the perspective of a child or by the adolescents themselves. Although it seems possible to obtain adolescents' preferences for inclusion in EQ-5D-Y-3L value sets, the desirability and acceptance of their preferences by researchers and decision makers need to be explored further.
Collapse
Affiliation(s)
| | | | - Marko Ogorevc
- Institute for Economic Research, Ljubljana, Slovenia
| | - Simone Kreimeier
- Department of Health Economics and Health Care Management, School of Public Health, Bielefeld University, Bielefeld, Germany
| | - Kristina Ludwig
- Department of Health Economics and Health Care Management, School of Public Health, Bielefeld University, Bielefeld, Germany
| | - Wolfgang Greiner
- Department of Health Economics and Health Care Management, School of Public Health, Bielefeld University, Bielefeld, Germany
| |
Collapse
|
14
|
Prevolnik Rupel V, Ogorevc M. EQ-5D-Y Value Set for Slovenia. PHARMACOECONOMICS 2021; 39:463-471. [PMID: 33565048 PMCID: PMC8009800 DOI: 10.1007/s40273-020-00994-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/24/2020] [Indexed: 05/02/2023]
Abstract
BACKGROUND A value set for the EuroQoL 5-Dimensions (EQ-5D)-Y in Slovenia is not yet available, making the calculation of quality-adjusted life-years (QALYs) for children and adolescents using this generic instrument impossible. OBJECTIVE The main objective of our study was to obtain adult preferences towards EQ-5D-Y health states in Slovenia, following the EQ-5D-Y-3L international valuation protocol. The adults were asked to take the perspective of a hypothetical 10-year-old child. METHOD A sample of 1074 adults in Slovenia completed an online discrete-choice experiment (DCE) survey on EQ-5D-Y health states. The latent scale issue was addressed by obtaining the value of the anchor (33333) with 200 composite time trade-off (cTTO) interviews. A mixed (random coefficients) logit model was used to estimate the value set. RESULTS All the estimated coefficients of the mixed logit model were statistically significant at the 1% level and had an expected negative sign. The most important health dimension in EQ-5D-Y is pain/discomfort, followed by anxiety/depression, usual activities, and mobility, with self-care being the least important health dimension. CONCLUSIONS The study addresses an important research gap and presents the EQ-5D-Y value set for Slovenia. At the time of writing, no published value sets are available for the EQ-5D-Y-3L appropriate for use in QALY calculations, making this value set the first EQ-5D-Y value set in the world.
Collapse
Affiliation(s)
| | - Marko Ogorevc
- Institute for Economic Research, Kardeljeva ploščad 17, 1000, Ljubljana, Slovenia
| |
Collapse
|
15
|
Hartman JD, Craig BM. Does Device or Connection Type Affect Health Preferences in Online Surveys? PATIENT-PATIENT CENTERED OUTCOMES RESEARCH 2020; 12:639-650. [PMID: 31364022 DOI: 10.1007/s40271-019-00380-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE Recent evidence has shown that online surveys can reliably collect preference data, which markedly decrease the cost of health preference studies and expand their representativeness. As the use of mobile technology continues to grow, we wanted to examine its potential impact on health preferences. METHODS Two recently completed discrete choice experiments using members of the US general population (n = 15,292) included information on respondent device (cell phone, tablet, Mac, PC) and internet connection (business, cellular, college, government, residential). In this analysis, we tested for differences in respondent characteristics, participation, response quality, and utility values for the 5-level EQ-5D (EQ-5D-5L) by device and connection. RESULTS Compared to Mac and PC users, respondents using a cell phone or tablet had longer completion times and were significantly more likely to drop out during the surveys (p < 0.001). Tablet users also demonstrated more logical inconsistencies (p = 0.05). Likewise, respondents using a cellular internet connection exhibit significantly less consistency in their health preferences. However, matched samples for tablets and cell phones produced similar EQ-5D-5L utility values (mean differences < 0.06 on a quality-adjusted life-year [QALY] scale for all potential health states). CONCLUSION Allowing respondents to complete online surveys using a cell phone or tablet or over a cellular connection substantially increases the diversity of respondents and the likelihood of obtaining a representative sample, as many individuals have cell phones but not a computer. While the results showed systematic variability in participation and response quality by device and connection type, this study did not show any meaningful changes in utility values.
Collapse
Affiliation(s)
- John D Hartman
- Department of Health Sciences and Administration, University of West Florida, Pensacola, FL, USA.
| | - Benjamin M Craig
- Department of Economics, University of South Florida, Tampa, FL, USA
| |
Collapse
|
16
|
Ramos-Goñi JM, Oppe M, Stolk E, Shah K, Kreimeier S, Rivero-Arias O, Devlin N. International Valuation Protocol for the EQ-5D-Y-3L. PHARMACOECONOMICS 2020; 38:653-663. [PMID: 32297224 DOI: 10.1007/s40273-020-00909-3] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The EQ-5D-Y-3L is a generic, health-related, quality-of-life instrument for use in younger populations. Some methodological studies have explored the valuation of children's EQ-5D-Y-3L health states. There are currently no published value sets available for the EQ-5D-Y-3L that are appropriate for use in a cost-utility analysis. The aim of this article was to describe the development of the valuation protocol for the EQ-5D-Y-3L instrument. There were several research questions that needed to be answered to develop a valuation protocol for EQ-5D-Y-3L health states. Most important of these were: (1) Do we need to obtain separate values for the EQ-5D-Y-3L, or can we use the ones from the EQ-5D-3L? (2) Whose values should we elicit: children or adults? (3) Which valuation methods should be used to obtain values for child's health states that are anchored in Full health = 1 and Dead = 0? The EuroQol Research Foundation has pursued a research programme to provide insight into these questions. In this article, we summarized the results of the research programme concluding with the description of the features of the EQ-5D-Y-3L valuation protocol. The tasks included in the protocol for valuing EQ-5D-Y-3L health states are discrete choice experiments for obtaining the relative importance of dimensions/levels and composite time-trade-off for anchoring the discrete choice experiment values on 1 = Full Health and 0 = Dead. This protocol is now available for use by research teams to generate EQ-5D-Y-3L value sets for their countries allowing the implementation of a cost-utility analysis for younger populations.
Collapse
Affiliation(s)
- Juan M Ramos-Goñi
- Axentiva Solutions, C/Calvario, 271-B 1º IZQ, 38350, Tacoronte, Santa Cruz de Tenerife, Spain.
- EuroQol Research Foundation, Rotterdam, The Netherlands.
| | - Mark Oppe
- Axentiva Solutions, C/Calvario, 271-B 1º IZQ, 38350, Tacoronte, Santa Cruz de Tenerife, Spain
- EuroQol Research Foundation, Rotterdam, The Netherlands
| | - Elly Stolk
- EuroQol Research Foundation, Rotterdam, The Netherlands
| | - Koonal Shah
- Office of Health Economics, London, UK
- PHMR, London, UK
| | - Simone Kreimeier
- Department of Health Economics and Health Care Management, School of Public Health, Bielefeld University, Bielefeld, Germany
| | - Oliver Rivero-Arias
- National Perinatal Epidemiology Unit (NPEU), Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Nancy Devlin
- Office of Health Economics, London, UK
- Centre for Health Policy, University of Melbourne, Melbourne, VIC, Australia
| |
Collapse
|
17
|
Pan CW, Zhong H, Li J, Suo C, Wang P. Measuring health-related quality of life in elementary and secondary school students using the Chinese version of the EQ-5D-Y in rural China. BMC Public Health 2020; 20:982. [PMID: 32571279 PMCID: PMC7310053 DOI: 10.1186/s12889-020-09116-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/15/2020] [Indexed: 11/27/2022] Open
Abstract
Background To measure health-related quality of life (HRQOL) of elementary and secondary school students in rural China using the simplified Chinese version of the EQ-5D-Y. Method Both the samples of students were from a school-based cohort study in a county located in southwestern China. The students self-completed the EQ-5D-Y. Feasibility was evaluated according to the percentages of missing values. Known group validity was assessed by comparing the frequency of reporting EQ-5D-Y problems between groups known to differ in health status. Results A total of 1728 elementary students and 2116 secondary students were included in the analysis. Their respective mean age was 8.7 (range: 7–15) years and 14.8 (range: 11–18) years, with girls being 45.1 and 50.1%, respectively. The missing values in both samples were quite low. Elementary students were less likely to have problems on‘having pain or discomfort’ and ‘feeling worried, sad or unhappy’ dimensions, but more likely to report problems on the dimensions related to physical functioning. Gender difference in HRQOL was only detected for secondary students in terms of ‘doing usual activities’, ‘having pain or discomfort,’ and ‘feeling worried, sad or unhappy’ (P < 0.05 for all). The significant differences in HRQOL were not observed for the other characteristics. Conclusions It appears that the EQ-5D-Y is feasible and valid instrument in school-aged children and adolescents in rural China; but it suffers from similar disadvantages to those found in other general populations. The HRQOL distributions measured by the EQ-5D-Y were also provided.
Collapse
Affiliation(s)
- Chen-Wei Pan
- School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Hua Zhong
- Department of Ophthalmology, the First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jun Li
- Department of Ophthalmology, the Second People's Hospital of Yunnan Province, Kunming, China
| | - Chen Suo
- School of Public Health, Fudan University, 130 Dong An Road, Shanghai, 200032, China
| | - Pei Wang
- School of Public Health, Fudan University, 130 Dong An Road, Shanghai, 200032, China. .,Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), Shanghai, China.
| |
Collapse
|
18
|
Dalziel K, Catchpool M, García-Lorenzo B, Gorostiza I, Norman R, Rivero-Arias O. Feasibility, Validity and Differences in Adolescent and Adult EQ-5D-Y Health State Valuation in Australia and Spain: An Application of Best-Worst Scaling. PHARMACOECONOMICS 2020; 38:499-513. [PMID: 31974830 DOI: 10.1007/s40273-020-00884-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
BACKGROUND The measurement and valuation of health-related quality of life for and by young people are increasingly important, yet research on the impact of study perspective and validity of preferences obtained from young populations remains limited. OBJECTIVE The objective of this study was to evaluate the feasibility and validity of collecting EQ-5D Youth version (EQ-5D-Y) preferences from adolescents, adults, and adults from a child perspective. METHODS A profile case best-worst scaling (BWS) online survey was administered to representative Australian and Spanish adult (age ≥ 18 years) and child (age 11-17 years) samples. Adults were told to either answer from their own perspective or for a hypothetical 10-year-old child. Marginal best- and worst-choice frequencies, analysis of dominant choices, self-reported difficulty completing the tasks, and time to complete tasks were used to determine the validity of responses. RESULTS In Australia, 2134 adults and 1010 adolescents completed the survey. In Spain, 2007 adults and 1000 adolescents completed it. Analysis of marginal choice frequencies and dominant choices indicated that the pattern of responses between adolescents and adults was similar. For Australian respondents, having no mobility problems was rated as best by adolescents, while adults rated having no pain and discomfort as 'best'. In Spain, both adults and adolescents rated no pain or discomfort as 'best'. Australian adolescents rated very worried, sad or unhappy as 'worst', while Spanish adolescents, Spanish adults and Australian adults rated a lot of pain and discomfort as 'worst'. CONCLUSIONS Results suggest preferences from adolescents using direct BWS are valid. Our descriptive analysis also suggest that there are age-related and country-specific differences in elicitation values for the EQ-5D-Y.
Collapse
Affiliation(s)
- Kim Dalziel
- Centre for Health Policy, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, VIC, Australia
| | - Max Catchpool
- Centre for Health Policy, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, VIC, Australia
| | - Borja García-Lorenzo
- Health Technology Assessment Unit, Hospital Clinic, University of Barcelona, Barcelona, Spain
- Fundación Canaria de Investigación Sanitaria (FUNCANIS), Tenerife, Spain
- Health Services Research on Chronic Patients Network (REDISSEC), Madrid, Spain
| | - Inigo Gorostiza
- Health Services Research on Chronic Patients Network (REDISSEC), Madrid, Spain
- Osakidetza Basque Health Service, Basurto University Hospital, Bilbao, Spain
| | - Richard Norman
- School of Public Health, Curtin University, Perth, WA, Australia
| | - Oliver Rivero-Arias
- Fundación Canaria de Investigación Sanitaria (FUNCANIS), Tenerife, Spain.
- Health Services Research on Chronic Patients Network (REDISSEC), Madrid, Spain.
- National Perinatal Epidemiology Unit (NPEU), Nuffield Department of Population Health, University of Oxford, Old Road Campus, Headington, Oxford, OX3 7LF, UK.
| |
Collapse
|
19
|
Rowen D, Rivero-Arias O, Devlin N, Ratcliffe J. Review of Valuation Methods of Preference-Based Measures of Health for Economic Evaluation in Child and Adolescent Populations: Where are We Now and Where are We Going? PHARMACOECONOMICS 2020; 38:325-340. [PMID: 31903522 DOI: 10.1007/s40273-019-00873-7] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Methods for measuring and valuing health benefits for economic evaluation and health technology assessment in adult populations are well developed. In contrast, methods for assessing interventions for child and adolescent populations lack detailed guidelines, particularly regarding the valuation of health and quality of life in these age groups. This paper critically examines the methodological considerations involved in the valuation of child- and adolescent-specific health-related quality of life by existing preference-based measures. It also describes the methodological choices made in the valuation of existing generic preference-based measures developed with and/or applied in child and adolescent populations: AHUM, AQoL-6D, CHU9D, EQ-5D-Y, HUI2, HUI3, QWB, 16D and 17D. The approaches used to value existing child- and adolescent-specific generic preference-based measures vary considerably. While the choice of whose preferences and which perspective to use is a matter of normative debate and ultimately for decision by reimbursement agencies and policy makers, greater research around these issues would be informative and would enrich these discussions. Research can also inform the other methodological choices required in the valuation of child and adolescent health states. Gaps in research evidence are identified around the impact of the child described in health state valuation exercises undertaken by adults, including the possibility of informed preferences; the appropriateness and acceptability of valuation tasks for adolescents, in particular tasks involving the state 'dead'; anchoring of adolescent preferences; and the generation and use of combined adult and adolescent preferences.
Collapse
Affiliation(s)
- Donna Rowen
- School of Health and Related Research (ScHARR), University of Sheffield, Regent Court, 30 Regent Street, Sheffield, S1 4DA, UK.
| | - Oliver Rivero-Arias
- National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Nancy Devlin
- Centre for Health Policy, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia
| | - Julie Ratcliffe
- Health and Social Care Economics Group, College of Nursing and Health Sciences, Flinders University, Adelaide, SA, Australia
| |
Collapse
|
20
|
Lunkenheimer F, Domhardt M, Geirhos A, Kilian R, Mueller-Stierlin AS, Holl RW, Meissner T, Minden K, Moshagen M, Ranz R, Sachser C, Staab D, Warschburger P, Baumeister H. Effectiveness and cost-effectiveness of guided Internet- and mobile-based CBT for adolescents and young adults with chronic somatic conditions and comorbid depression and anxiety symptoms (youthCOACH CD): study protocol for a multicentre randomized controlled trial. Trials 2020; 21:253. [PMID: 32164723 PMCID: PMC7069009 DOI: 10.1186/s13063-019-4041-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 12/30/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Adolescents and young adults (AYA) with chronic somatic conditions have an increased risk of comorbid depression and anxiety symptoms. Internet- and mobile-based cognitive behavioural therapy (iCBT) might be one possibility to extend the access to evidence-based treatments. Studies suggest that guided iCBT can reduce anxiety and depression symptoms in AYA. However, little is known about the effectiveness of iCBT for AYA with chronic somatic conditions and comorbid symptoms of anxiety and/or depression in routine care. Evidence on the (cost-)effectiveness of iCBT is essential for its implementation in health care. OBJECTIVES AND METHODS This multicentre two-armed randomized controlled trial (RCT) aims to evaluate the (cost-) effectiveness of guided iCBT (youthCOACHCD) in addition to treatment as usual (TAU) compared to enhanced treatment as usual (TAU+) in AYA aged 12-21 years with one of three chronic somatic conditions (type 1 diabetes, cystic fibrosis, or juvenile idiopathic arthritis). AYA with one of the chronic somatic conditions and elevated symptoms of anxiety or depression (Patient Health Questionnaire [PHQ-9] and/or Generalized Anxiety Disorder [GAD-7] Screener score ≥ 7) will be eligible for inclusion. We will recruit 212 patients (2 × n = 106) in routine care through three German patient registries. Assessments will take place at baseline and at 6 weeks, 3 months, 6 months, and 12 months post-randomization. The primary outcome will be combined depression and anxiety symptom severity as measured with the PHQ Anxiety and Depression Scale. Secondary outcomes will include health-related quality of life, coping strategies, self-efficacy, stress-related personal growth, social support, behavioural activation, adjustment and trauma-related symptoms, automatic thoughts, intervention satisfaction, working alliance, and Internet usage. The cost-effectiveness will be determined, and potential moderators and mediators of intervention effects will be explored. DISCUSSION iCBT might implicate novel ways to increase the access to evidence-based interventions in this specific population. The distinct focus on effectiveness and cost-effectiveness of youthCOACHCD in patients with chronic somatic conditions, as well as intervention safety, will most likely provide important new insights in the field of paediatric e-mental health. A particular strength of the present study is its implementation directly into routine collaborative health care. As such, this study will provide important insights for health care policy and stakeholders and indicate how iCBT can be integrated into existing health care systems. TRIAL REGISTRATION German Clinical Trials Register (DRKS), DRKS00017161. Registered on 17 September 2019.
Collapse
Affiliation(s)
- Frederike Lunkenheimer
- Department of Clinical Psychology and Psychotherapy, Faculty of Engineering, Computer Science and Psychology, Institute of Psychology and Education, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Matthias Domhardt
- Department of Clinical Psychology and Psychotherapy, Faculty of Engineering, Computer Science and Psychology, Institute of Psychology and Education, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Agnes Geirhos
- Department of Clinical Psychology and Psychotherapy, Faculty of Engineering, Computer Science and Psychology, Institute of Psychology and Education, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Reinhold Kilian
- Department of Psychiatry and Psychotherapy II, BKH Günzburg, Ulm University, Günzburg, Germany
| | | | - Reinhard W Holl
- Institute of Epidemiology and Medical Biometry, ZIBMT, Ulm University, Ulm, Germany
| | - Thomas Meissner
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University of Düsseldorf, Düsseldorf, Germany
| | - Kirsten Minden
- Charité University Medicine Berlin, Berlin, Germany
- German Rheumatism Research Centre, Berlin, Germany
| | - Morten Moshagen
- Department of Psychological Research Methods, Institute of Psychology and Education, Ulm University, Ulm, Germany
| | - Ramona Ranz
- Institute of Epidemiology and Medical Biometry, ZIBMT, Ulm University, Ulm, Germany
| | - Cedric Sachser
- Clinic of Child and Adolescent Psychiatry/Psychotherapy, University Hospital Ulm, Ulm, Germany
| | - Doris Staab
- Charité University Medicine Berlin, Berlin, Germany
| | - Petra Warschburger
- Department Psychology, Counselling Psychology, University of Potsdam, Potsdam, Germany
| | - Harald Baumeister
- Department of Clinical Psychology and Psychotherapy, Faculty of Engineering, Computer Science and Psychology, Institute of Psychology and Education, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany.
| |
Collapse
|
21
|
Abstract
BACKGROUND The 5-level version of the EQ-5D (EQ-5D-5L) was introduced as an improvement on the original 3-level version (EQ-5D-3L). To date, 6 country-specific value sets have been published for EQ-5D-5L and 9 US value sets have been published for other instruments. Our aims were to (1) produce EQ-5D-5L values on a quality-adjusted life year (QALY) scale from the perspective of US adults and (2) compare them with US EQ-5D-3L values and the other country-specific EQ-5D-5L values. METHODS In 2016, 8222 US respondents from all 50 states and Washington, DC completed an online survey including a discrete choice experiment with 20 paired comparisons. Each comparison asked respondents, "Which do you prefer?" regarding a pair of alternatives described using EQ-5D-5L and lifespan attributes. On the basis of more than 50 choices on each of the 3160 pairs, we estimated EQ-5D-5L values on a QALY scale and compared them with the US EQ-5D-3L values and the other country-specific EQ-5D-5L values. RESULTS Ranging from -0.287 (55555) to 0.992 (11121) on a QALY scale, the estimated EQ-5D-5L values were similar to the US EQ-5D-3L values. Compared with the US EQ-5D-3L values, the values exhibited greater sensitivity and specificity and higher correlation with the EQ-5D-5L values of other countries, particularly England. CONCLUSIONS Like previous US valuation studies, this study produced nationally representative EQ-5D-5L values on a QALY scale. The results further demonstrate the advantages of the EQ-5D-5L over its 3-level predecessor as a preference-based summary measure of health-related quality of life from the perspective of US adults.
Collapse
|
22
|
Kreimeier S, Greiner W. EQ-5D-Y as a Health-Related Quality of Life Instrument for Children and Adolescents: The Instrument's Characteristics, Development, Current Use, and Challenges of Developing Its Value Set. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2019; 22:31-37. [PMID: 30661631 DOI: 10.1016/j.jval.2018.11.001] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 10/24/2018] [Accepted: 11/02/2018] [Indexed: 05/18/2023]
Abstract
OBJECTIVES Interest in the measurement of health-related quality of life (HRQoL) in children and adolescents has been increasing, and appropriate instruments are required for this target group. This article focuses on the EQ-5D-Y instrument, presenting an overview of its characteristics, development, and current use, and includes a discussion of methodological and conceptual issues related to the valuation of child health and the development of an EQ-5D-Y value set. METHODS This article brings together the experiences of the research team that developed and validated the EQ-5D-Y, supplemented by information derived from EQ-5D-Y study registrations on the EuroQol Group's website. RESULTS EQ-5D-Y is a child-specific and age-appropriate measure of HRQoL. Study registration data show that the instrument's use has steadily increased since its first publication. It has been used in various types of studies and in different disease areas. Currently there is no value set for EQ-5D-Y, and so its use in cost-utility analysis (CUA) is limited. There are methodological and conceptual issues that affect the design of valuation studies for child health. Issues that are discussed include the need for separate value sets for children and adolescents, the choice of appropriate reference samples and valuation techniques, and the framing of the tasks. CONCLUSIONS Research on EQ-5D-Y and its use has increased in the last years. Further research is required to clarify methodological issues regarding health state valuation in children and adolescents. This will support the development of a value set for EQ-5D-Y and the use of EQ-5D-Y in CUA.
Collapse
Affiliation(s)
- Simone Kreimeier
- Department of Health Economics and Health Care Management, Faculty of Health Science, Bielefeld University, Bielefeld, Germany.
| | - Wolfgang Greiner
- Department of Health Economics and Health Care Management, Faculty of Health Science, Bielefeld University, Bielefeld, Germany
| |
Collapse
|
23
|
Stolk E, Ludwig K, Rand K, van Hout B, Ramos-Goñi JM. Overview, Update, and Lessons Learned From the International EQ-5D-5L Valuation Work: Version 2 of the EQ-5D-5L Valuation Protocol. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2019; 22:23-30. [PMID: 30661630 DOI: 10.1016/j.jval.2018.05.010] [Citation(s) in RCA: 186] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 04/26/2018] [Accepted: 05/16/2018] [Indexed: 05/18/2023]
Abstract
A standardized 5-level EuroQol 5-dimensional questionnaire (EQ-5D-5L) valuation protocol was first used in national studies in the period 2012 to 2013. A set of problems encountered in this initial wave of valuation studies led to the subsequent refinement of the valuation protocol. To clarify lessons learned and how the protocol was updated when moving from version 1.0 to the current version 2.1 and 2.0, this article will (1) present the challenges faced in EQ-5D-5L valuation since 2012 and how these were resolved and (2) describe in depth a set of new challenges that have become central in currently ongoing research on how EQ-5D-5L health states should be valued and modeled.
Collapse
Affiliation(s)
- Elly Stolk
- EuroQol Research Foundation, Rotterdam, The Netherlands.
| | - Kristina Ludwig
- EuroQol Research Foundation, Rotterdam, The Netherlands; Health Economics and Health Care Management, Bielefeld University, Bielefeld, Germany
| | - Kim Rand
- Department of Health Management and Health Economics, University of Oslo, Oslo, Norway; Health Services Research Centre, Akershus University Hospital, Lørenskog, Norway
| | - Ben van Hout
- School of Health and Related Research, University of Sheffield, Sheffield, UK
| | | |
Collapse
|
24
|
Karras HC, Morin DN, Gill K, Izadi-Najafabadi S, Zwicker JG. Health-related quality of life of children with Developmental Coordination Disorder. RESEARCH IN DEVELOPMENTAL DISABILITIES 2019; 84:85-95. [PMID: 29907374 DOI: 10.1016/j.ridd.2018.05.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 05/05/2018] [Accepted: 05/20/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Although Developmental Coordination Disorder (DCD) is primarily a motor disorder, it can also impact emotional and psychosocial functioning of children with this condition. Evidence suggests that children with DCD experience lower quality of life than their peers, but few studies have explicitly examined the health-related quality of life (HRQOL) of these children. AIMS To: (1) describe HRQOL of children with DCD compared to typically-developing children; (2) compare HRQOL from the perspectives of children with DCD and their parents; and (3) explore predictors of HRQOL for children with DCD. METHODS Data from the KidScreen-52 and Strength and Difficulties Questionnaire were collected from 50 children with DCD [Mean(SD) age: 9.8 (1.2) years] and their parents and compared to normative data. RESULTS Children with DCD and their parents report significantly lower HRQOL compared to published norms. Caregivers have a significantly lower perception of their child's HRQOL than their child's self-report in many domains. Parents of children with DCD report that their children experience significantly more emotional and behavioral disturbances compared to norms. Poor motor function and attentional difficulties predict HRQOL. CONCLUSION AND IMPLICATIONS DCD appears to contribute to lower perceived HRQOL. Findings inform therapeutic targets for children with DCD, beyond motor skill intervention.
Collapse
Affiliation(s)
- Heather C Karras
- Department of Occupational Science & Occupational Therapy, University of British Columbia, Vancouver, Canada
| | - Danita N Morin
- Department of Occupational Science & Occupational Therapy, University of British Columbia, Vancouver, Canada
| | - Kamaldeep Gill
- Graduate Programs in Rehabilitation Science, University of British Columbia, Vancouver, Canada; BC Children's Hospital Research Institute, Vancouver, Canada
| | - Sara Izadi-Najafabadi
- Graduate Programs in Rehabilitation Science, University of British Columbia, Vancouver, Canada; BC Children's Hospital Research Institute, Vancouver, Canada
| | - Jill G Zwicker
- Department of Occupational Science & Occupational Therapy, University of British Columbia, Vancouver, Canada; BC Children's Hospital Research Institute, Vancouver, Canada; Department of Pediatrics, University of British Columbia, Vancouver, Canada; Sunny Hill Health Centre for Children, Vancouver, Canada; CanChild Centre for Childhood Disability Research, Hamilton, Canada.
| |
Collapse
|
25
|
Mulhern B, Norman R, Street DJ, Viney R. One Method, Many Methodological Choices: A Structured Review of Discrete-Choice Experiments for Health State Valuation. PHARMACOECONOMICS 2019; 37:29-43. [PMID: 30194624 DOI: 10.1007/s40273-018-0714-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
BACKGROUND Discrete-choice experiments (DCEs) are used in the development of preference-based measure (PBM) value sets. There is considerable variation in the methodological approaches used to elicit preferences. OBJECTIVE Our objective was to carry out a structured review of DCE methods used for health state valuation. METHODS PubMed was searched until 31 May 2018 for published literature using DCEs for health state valuation. Search terms to describe DCEs, the process of valuation and preference-based instruments were developed. English language papers with any study population were included if they used DCEs to develop or directly inform the production of value sets for generic or condition-specific PBMs. Assessment of paper quality was guided by the recently developed Checklist for Reporting Valuation Studies. Data were extracted under six categories: general study information, choice task and study design, type of designed experiment, modelling and analysis methods, results and discussion. RESULTS The literature search identified 1132 published papers, and 63 papers were included in the review. Paper quality was generally high. The study design and choice task formats varied considerably, and a wide range of modelling methods were employed to estimate value sets. CONCLUSIONS This review of DCE methods used for developing value sets suggests some recurring limitations, areas of consensus and areas where further research is required. Methodological diversity means that the values should be seen as experimental, and users should understand the features of the value sets produced before applying them in decision making.
Collapse
Affiliation(s)
- Brendan Mulhern
- Centre for Health Economics Research and Evaluation, University of Technology, 1-59 Quay St, Haymarket, Sydney, NSW, 2000, Australia.
| | - Richard Norman
- School of Public Health, Curtin University, Kent Street, Bentley, Perth, WA, 6102, Australia
| | - Deborah J Street
- Centre for Health Economics Research and Evaluation, University of Technology, 1-59 Quay St, Haymarket, Sydney, NSW, 2000, Australia
| | - Rosalie Viney
- Centre for Health Economics Research and Evaluation, University of Technology, 1-59 Quay St, Haymarket, Sydney, NSW, 2000, Australia
| |
Collapse
|
26
|
Lim S, Jonker MF, Oppe M, Donkers B, Stolk E. Severity-Stratified Discrete Choice Experiment Designs for Health State Evaluations. PHARMACOECONOMICS 2018; 36:1377-1389. [PMID: 30030818 PMCID: PMC6182499 DOI: 10.1007/s40273-018-0694-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
BACKGROUND Discrete choice experiments (DCEs) are increasingly used for health state valuations. However, the values derived from initial DCE studies vary widely. We hypothesize that these findings indicate the presence of unknown sources of bias that must be recognized and minimized. Against this background, we studied whether values derived from a DCE are sensitive to how well the DCE design spans the severity range. METHODS We constructed an experiment involving three variants of DCE tasks for health state valuation: standard DCE, DCE-death, and DCE-duration. For each type of DCE, an experimental design was generated under two different conditions, enabling a comparison of health state values derived from current best practice Bayesian efficient DCE designs with values derived from 'severity-stratified' designs that control for coverage of the severity range in health state selection. About 3000 respondents participated in the study and were randomly assigned to one of the six study arms. RESULTS Imposing the severity-stratified restriction had a large effect on health states sampled for the DCE-duration approach. The unstratified efficient design returned a skewed distribution of selected health states, and this introduced bias. The choice probability of bad health states was underestimated, and time trade-offs to avoid bad states were overestimated, resulting in too low values. Imposing the same restriction had limited effect in the DCE-death approach and standard DCE. CONCLUSION Variation in DCE-derived values can be partially explained by differences in how well selected health states spanned the severity range. Imposing a 'severity stratification' on DCE-duration designs is a validity requirement.
Collapse
Affiliation(s)
- Sesil Lim
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, The Netherlands.
- Erasmus School of Economics, Erasmus University Rotterdam, Rotterdam, The Netherlands.
| | - Marcel F Jonker
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, The Netherlands
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Rotterdam, The Netherlands
- Duke Clinical Research Institute, Duke University, Durham, NC, USA
| | - Mark Oppe
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, The Netherlands
- EuroQol Research Foundation, Rotterdam, The Netherlands
| | - Bas Donkers
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, The Netherlands
- Erasmus School of Economics, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Elly Stolk
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, The Netherlands
- EuroQol Research Foundation, Rotterdam, The Netherlands
| |
Collapse
|
27
|
Åström M, Persson C, Lindén-Boström M, Rolfson O, Burström K. Population health status based on the EQ-5D-Y-3L among adolescents in Sweden: Results by sociodemographic factors and self-reported comorbidity. Qual Life Res 2018; 27:2859-2871. [PMID: 30196340 PMCID: PMC6208600 DOI: 10.1007/s11136-018-1985-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2018] [Indexed: 11/24/2022]
Abstract
Purpose The EQ-5D-Y-3L is a generic health-related quality of life (HRQoL) measure developed for youth from 8 years old. The aim of this study is to present population health status, based on the EQ-5D-Y-3L, among adolescents in Sweden, by sex, age, self-reported comorbidity and parents’ occupational status. Methods Data were obtained from a cross-sectional total survey among students, aged 13–18 years, in a Swedish County year 2014. The survey included EQ-5D-Y-3L, questions regarding self-reported health, disease, functional impairment and mental distress. Parents’ occupational status was used as a proxy for socio-economic status. Results A total of 6574 participants answered all the EQ-5D-Y-3L dimensions (mean age was 15.9 years, same proportion of boys and girls). Girls reported more problems than boys in the dimensions ‘doing usual activities’, ‘having pain or discomfort’ and ‘feeling worried, sad or unhappy’, and lower mean VAS score. Respondents with one or both parents unemployed reported more problems with usual activities, pain/discomfort and in the mood dimension than those with both parents employed. Those with comorbidity had in general more problems in all dimensions and lower mean VAS score. The highest impact on VAS score was found for adolescents who reported that they always felt depressed. Conclusions Sex, age, self-reported comorbidity and parents’ occupational status were associated with HRQoL determined by the EQ-5D-Y-3L in the general population of adolescents. The ability of EQ-5D-Y-3L to distinguish adolescents’ health status based on these factors confirms the instrument’s usefulness in assessment of HRQoL and as guidance for prioritization. Electronic supplementary material The online version of this article (10.1007/s11136-018-1985-2) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Mimmi Åström
- Health Outcomes and Economic Evaluation Research Group, Stockholm Centre for Healthcare Ethics, Department of Learning, Informatics, Management and Ethics, Karolinska Institutet, Tomtebodavägen 18 A, 171 77, Stockholm, Sweden. .,Equity and Health Policy Research Group, Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden. .,Health Care Services, Stockholm County Council, Stockholm, Sweden.
| | - Carina Persson
- Department for Sustainable Development, Region Örebro County, Örebro, Sweden.,Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Margareta Lindén-Boström
- Department for Sustainable Development, Region Örebro County, Örebro, Sweden.,Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Ola Rolfson
- Health Outcomes and Economic Evaluation Research Group, Stockholm Centre for Healthcare Ethics, Department of Learning, Informatics, Management and Ethics, Karolinska Institutet, Tomtebodavägen 18 A, 171 77, Stockholm, Sweden.,Department of Orthopaedics, Institute of Clinical Sciences, the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Swedish Hip Arthroplasty Register, Gothenburg, Sweden
| | - Kristina Burström
- Health Outcomes and Economic Evaluation Research Group, Stockholm Centre for Healthcare Ethics, Department of Learning, Informatics, Management and Ethics, Karolinska Institutet, Tomtebodavägen 18 A, 171 77, Stockholm, Sweden.,Equity and Health Policy Research Group, Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden.,Health Care Services, Stockholm County Council, Stockholm, Sweden
| |
Collapse
|
28
|
Craig BM, Rand K, Bailey H, Stalmeier PFM. Quality-Adjusted Life-Years without Constant Proportionality. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2018; 21:1124-1131. [PMID: 30224118 DOI: 10.1016/j.jval.2018.02.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 02/05/2018] [Accepted: 02/14/2018] [Indexed: 05/14/2023]
Abstract
BACKGROUND A quality-adjusted life-year is a common unit of measurement in health valuation. Under its constant proportionality assumption, the value of a quality-adjusted life span is defined as the product of preference weight and life span. OBJECTIVES To empirically identify an alternative functional relationship between life span and value by relaxing the constant proportionality assumption. METHODS Using an online survey, 5367 respondents completed 30 to 40 paired comparisons where each involved a choice between two health outcomes: one with a longer life span and health problems (five-level EuroQol five-dimensional questionnaire) and the other with a shorter life span and no problems (time trade-off pair). Using 2670 pairs, a saturated model with indicator variables for 27 life spans and 90 health problems of varying duration and severity was estimated by maximum likelihood. Its coefficients empirically illustrate the relationship between life span and value on a quality-adjusted life-year scale. RESULTS The results reject constant proportionality (P < 0.01) and support the use of a power function to describe the relationship between life span and value, namely, value = preference weight × life spanβ. The estimate of power (β = 0.415; 95% confidence interval 0.41-0.42) appears to depend on whether life span was expressed in a temporal unit of days (0.403), weeks (0.509), months (0.541), or years (0.654). CONCLUSIONS Raising life span to a power less than 1 implies decreasing marginal value of life span and greatly improved model fit, and confirms previous violations of proportionality. This power function may replace conventional assumptions in health valuation studies. Nevertheless, governmental agencies may favor a longer time horizon than that of the general population.
Collapse
Affiliation(s)
- Benjamin M Craig
- Department of Economics, University of South Florida, Tampa, FL, USA.
| | - Kim Rand
- Department of Health Management and Health Economics, University of Oslo, Oslo, Norway; Health Services Research Centre, Akershus University Hospital, Lørenskog, Norway
| | - Henry Bailey
- Arthur Lok Jack Global School of Business, The University of the West Indies, Trinidad and Tobago; HEU, Centre for Health Economics, The University of the West Indies, Trinidad and Tobago
| | - Peep F M Stalmeier
- Health Evidence, Radboud University Medical Centre, Nijmegen, The Netherlands
| |
Collapse
|
29
|
Wolstenholme JL, Bargo D, Wang K, Harnden A, Räisänen U, Abel L. Preference-based measures to obtain health state utility values for use in economic evaluations with child-based populations: a review and UK-based focus group assessment of patient and parent choices. Qual Life Res 2018; 27:1769-1780. [PMID: 29564713 PMCID: PMC5997719 DOI: 10.1007/s11136-018-1831-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2018] [Indexed: 12/02/2022]
Abstract
Background No current guidance is available in the UK on the choice of preference-based measure (PBM) that should be used in obtaining health-related quality of life from children. The aim of this study is to review the current usage of PBMs for obtaining health state utility values in child and adolescent populations, and to obtain information on patient and parent–proxy respondent preferences in completing PBMs in the UK. Methods A literature review was conducted to determine which instrument is most frequently used for child-based economic evaluations and whether child or proxy responses are used. Instruments were compared on dimensions, severity levels, elicitation and valuation methods, availability of value sets and validation studies, and the range of utility values generated. Additionally, a series of focus groups of parents and young people (11–20 years) were convened to determine patient and proxy preferences. Results Five PBMs suitable for child populations were identified, although only the Health Utilities Index 2 (HUI2) and Child Heath Utility 9D (CHU-9D) have UK value sets. 45 papers used PBMs in this population, but many used non-child-specific PBMs. Most respondents were parent proxies, even in adolescent populations. Reported missing data ranged from 0.5 to 49.3%. The focus groups reported their experiences with the EQ-5D-Y and CHU-9D. Both the young persons’ group and parent/proxy groups felt that the CHU-9D was more comprehensive but may be harder for a proxy to complete. Some younger children had difficulty understanding the CHU-9D questions, but the young persons’ group nonetheless preferred responding directly. Conclusion The use of PBMs in child populations is increasing, but many studies use PBMs that do not have appropriate value sets. Parent proxies are the most common respondents, but the focus group responses suggest it would be preferred, and may be more informative, for older children to self-report or for child–parent dyads to respond. Electronic supplementary material The online version of this article (10.1007/s11136-018-1831-6) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Jane L Wolstenholme
- Health Economics Research Centre, Nuffield Department of Population Health, University of Oxford, New Richards Building, Old Road Campus, Oxford, OX3 7LF, UK.
| | - Danielle Bargo
- Health Economics Research Centre, Nuffield Department of Population Health, University of Oxford, New Richards Building, Old Road Campus, Oxford, OX3 7LF, UK
| | - Kay Wang
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Anthony Harnden
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Ulla Räisänen
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Lucy Abel
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| |
Collapse
|
30
|
Scott D, Ferguson GD, Jelsma J. The use of the EQ-5D-Y health related quality of life outcome measure in children in the Western Cape, South Africa: psychometric properties, feasibility and usefulness - a longitudinal, analytical study. Health Qual Life Outcomes 2017; 15:12. [PMID: 28103872 PMCID: PMC5248508 DOI: 10.1186/s12955-017-0590-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 01/13/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The EQ-5D-Y, an outcome measure of Health Related Quality of Life (HRQoL) in children, was developed by an international task team in 2010. The multinational feasibility, reliability and validity study which followed was undertaken with mainly healthy children. The aim of this study was to investigate the psychometric properties of the EQ-5D-Y when used to assess the HRQoL of children with different health states. METHOD A sample of 224 children between eight and twelve years were grouped according to their health state. The groups included 52 acutely ill children, 67 children with either a chronic health condition or disability and 105 mostly healthy, mainstream school children as a comparator. They were assessed at baseline, at three months and at six months. An analysis of the psychometric properties was performed to assess the reliability, validity and responsiveness of the EQ-5D-Y in the different groups of children. Cohen's kappa, the intraclass correlation coefficient, Pearson Chi-square, Kruskal-Wallis ANOVA and effect size of Wilcoxon Signed-rank test were used to determine the reliability, validity and responsiveness of the instrument. RESULTS The EQ-5D-Y dimensions were found to be reliable on test-retest (kappa varying from 0.365 to 0.653), except for the Usual Activities dimension (kappa 0.199). The Visual Analogue Scale (VAS) was also reliable (ICC = 0.77). Post-hoc analysis indicated that dimensions were able to discriminate between acutely ill and healthy children (all differences p < 0.001). The acutely ill children had the lowest ranked VAS (median 50, range 0-100), indicating worst HRQoL and was the only group significantly different from the other three groups (p < 0.001 in all cases). Convergent validity between all similar EQ-5D-Y and PedsQL, WeeFIM and Faces Pain Scale dimensions was only evident in the acutely ill children. As expected the largest treatment effect was also observed in these children (Wilcoxon Signed-rank test for VAS was 0.43). Six of the nine therapists who took part in the study, found the measure quick and easy to apply, used the information in the management of the child and would continue to use it in future. CONCLUSIONS The EQ-5D-Y could be used with confidence as an outcome measure for acutely-ill children, but demonstrated poorer psychometric properties in children with no health condition or chronic conditions. It appears to be feasible and useful to include the EQ-5D-Y in routine assessments of children.
Collapse
Affiliation(s)
- Des Scott
- Department of Health and Rehabilitation Sciences, Faculty of Health Sciences, University of Cape Town, Observatory 7925, Cape Town, South Africa.
| | - Gillian D Ferguson
- Department of Health and Rehabilitation Sciences, Faculty of Health Sciences, University of Cape Town, Observatory 7925, Cape Town, South Africa
| | - Jennifer Jelsma
- Department of Health and Rehabilitation Sciences, Faculty of Health Sciences, University of Cape Town, Observatory 7925, Cape Town, South Africa
| |
Collapse
|
31
|
Montgomery SM, Kusel J. The prevalence of child-specific utilities in NICE appraisals for paediatric indications: rise of the economic orphans? Expert Rev Pharmacoecon Outcomes Res 2016; 16:347-50. [PMID: 27082293 DOI: 10.1080/14737167.2016.1179116] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Children are not mini-adults, and thus require studies to be conducted in the population of interest to inform decisions about their care. The paucity of such studies for clinical efficacy lead them to be termed 'therapeutic orphans'. Following the introduction of the 'fourth hurdle' of reimbursement approval on the basis of cost-utility analysis, utility data is now a key requirement for patients to access treatments in England and many other countries. This special report considers whether a paucity of utility valuation studies in children may have made them 'economic orphans' as well and presents results of a review of NICE appraisals as a window on this problem over time.
Collapse
|
32
|
Brown DS, Trogdon JG, Ekwueme DU, Chamiec-Case L, Guy GP, Tangka FK, Li C, Trivers KF, Rodriguez JL. Health State Utility Impact of Breast Cancer in U.S. Women Aged 18-44 Years. Am J Prev Med 2016; 50:255-61. [PMID: 26775904 DOI: 10.1016/j.amepre.2015.07.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 07/08/2015] [Accepted: 07/18/2015] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Breast cancer affects women's health-related quality of life negatively, but little is known about how breast cancer affects this in younger women aged 18-44 years. This study measures preference-based health state utility (HSU) values, a scaled index of health-related quality of life for economic evaluation, for younger women with breast cancer and compares these values with same-age women with other cancers and older women (aged ≥45 years) with breast cancer. METHODS Data from the 2009 and 2010 Behavioral Risk Factor Surveillance System were analyzed in 2014. The sample included 218,852 women; 7,433 and 18,577 had histories of breast and other cancers. HSU values were estimated using Healthy Days survey questions and a published mapping algorithm. Linear regression models for HSU were estimated by age group (18-44 and ≥45 years). RESULTS The adjusted breast cancer HSU impact was four times larger for younger women than for older women (-0.097 vs -0.024, p<0.001). For younger women, the effect of breast cancer on HSU was 70% larger than that of other cancers (-0.097 vs -0.057, p=0.024). CONCLUSIONS Younger breast cancer survivors reported lower HSU values than older survivors, highlighting the impact of breast cancer on the physical and mental health of younger women. The estimates may be used to evaluate quality-adjusted life-years or expectancy for prevention or treatment of breast cancer. This study also indicates that separate quality of life adjustments for women by age group are important for economic analysis of public health breast cancer interventions.
Collapse
Affiliation(s)
- Derek S Brown
- Brown School, Washington University in St. Louis, St. Louis, Missouri.
| | - Justin G Trogdon
- Department of Health Policy and Management, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | | | | | - Gery P Guy
- Division of Cancer Prevention and Control, CDC, Atlanta, Georgia
| | | | - Chunyu Li
- Division of Cancer Prevention and Control, CDC, Atlanta, Georgia
| | | | - Juan L Rodriguez
- Division of Cancer Prevention and Control, CDC, Atlanta, Georgia
| |
Collapse
|