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Rowen D, Carlton J, Terheyden JH, Finger RP, Wickramasekera N, Brazier J. Development and Valuation of a Preference-Weighted Measure in Age-Related Macular Degeneration From the Vision Impairment in Low Luminance Questionnaire: A MACUSTAR Report. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2024; 27:642-654. [PMID: 38369283 DOI: 10.1016/j.jval.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/29/2024] [Accepted: 02/08/2024] [Indexed: 02/20/2024]
Abstract
OBJECTIVES This study generates VILL-UI (Vision Impairment in Low Luminance - Utility Index), a preference-weighted measure (PWM) derived from the VILL-33 measure for use in patients with age-related macular degeneration (AMD) and valued to generate United Kingdom and German preference weights. METHODS A PWM consists of a classification system to describe health and utility values for every state described by the classification. The classification was derived using existing data collected as part of the MACUSTAR study, a low-interventional study on AMD, conducted at 20 clinical sites across Europe. Items were selected using psychometric and Rasch analyses, published criteria around PWM suitability, alongside instrument developer views and concept elicitation work that informed VILL-33 development. An online discrete choice experiment (DCE) with duration of the health state was conducted with the United Kingdom and German public. Responses were modeled to generate utility values for all possible health states. RESULTS The classification system has 5 items across the 3 domains of VILL-33: reading and accessing information, mobility and safety, and emotional well-being. The DCE samples (United Kingdom: n = 1004, Germany: n = 1008) are broadly representative and demonstrate good understanding of the tasks. The final DCE analyses produce logically consistent and significant coefficients. CONCLUSIONS This study enables responses to VILL-33 to be directly used to inform economic evaluation in AMD. The elicitation of preferences from both United Kingdom and Germany enables greater application of VILL-UI for economic evaluation throughout Europe. VILL-UI fills a gap in AMD in which generic preference-weighted measures typically lack sensitivity.
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Affiliation(s)
- Donna Rowen
- Sheffield Centre for Health and Related Research, University of Sheffield, Sheffield, England, UK.
| | - Jill Carlton
- Sheffield Centre for Health and Related Research, University of Sheffield, Sheffield, England, UK
| | | | | | - Nyantara Wickramasekera
- Sheffield Centre for Health and Related Research, University of Sheffield, Sheffield, England, UK
| | - John Brazier
- Sheffield Centre for Health and Related Research, University of Sheffield, Sheffield, England, UK
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Weerasuriya SR, Hettiarachchi RM, Kularatna S, Rohde A, Arrow P, Jamieson L, Tonmukayakul U, Senanayake S. Comparison of the Early Childhood Oral Health Impact Scale (ECOHIS-4D) and Child Health Utility Index (CHU-9D) in children with oral diseases. Community Dent Oral Epidemiol 2024; 52:224-231. [PMID: 37811777 DOI: 10.1111/cdoe.12917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 08/09/2023] [Accepted: 09/25/2023] [Indexed: 10/10/2023]
Abstract
OBJECTIVE Accurate assessment of child oral health is important for guiding economic evaluations and informing healthcare decision-making. Early Childhood Oral Health Impact Scale (ECOHIS-4D) is a preference-based instrument that measures the oral health-related quality of life of young children. The aim of this study was to compare the utility scores of ECOHIS-4D and Child Health Utility Index (CHU-9D), against an oral health indicator to evaluate which utility score corresponds better with the oral health indicator. METHOD The ECOHIS-4D and CHU-9D were applied to 314 parent/child dyads from preschools in a primary healthcare setting in Perth, Western Australia. Four parameters were used to assess which instrument corresponds better with the oral health indicator (decayed, missing and filled teeth score-dmft score): (i) discrimination, the ability to discriminate between different clinical severity groups, (ii) external responsiveness, how much the utility values relate to the changes in dmft scores, (iii) correlation, the association between the two instruments and the related dimensions and (iv) differences in the utility values across the two instruments. RESULTS Most participants (81%) were 2-6 years old, and nearly 50% had a dmft score <3. ECOHIS-4D demonstrated a superior ability to differentiate between dmft severity groups and respond to changes in dmft scores. A significant weak correlation was observed between dmft and ECOHIS-4D (-0.26, 95%, CI -0.36 to -0.15) compared to a non-significant very poor correlation between dmft and CHU-9D (0.01, 95% CI -0.12 to 0.10). The utility scores of the two instruments had relatively good agreement towards good health and weak agreement towards poor health. CONCLUSIONS ECOHIS-4D, the oral health-specific instrument, is more sensitive in assessing children's oral health-related quality of life than the generic CHU-9D. Thus, ECOHIS-4D is more appropriate for utility estimates in economic evaluations of oral health-related interventions and resource allocation decision-making.
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Affiliation(s)
- Sucharitha R Weerasuriya
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Ruvini M Hettiarachchi
- Centre for the Business and Economics of Health, The University of Queensland, Brisbane, Queensland, Australia
| | - Sanjeewa Kularatna
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
- Health Services and Systems Research, Duke-NUS Medical School, Singapore, Singapore
| | - Alexia Rohde
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Peter Arrow
- Adelaide Dental School, The University of Adelaide, South Australia, Adelaide, Australia
| | - Lisa Jamieson
- Adelaide Dental School, The University of Adelaide, South Australia, Adelaide, Australia
| | - Utsana Tonmukayakul
- Institute for Health Transformation, Deakin Health Economics, School of Health and Social Development, Faculty of Health, Deakin University, Geelong, Australia
| | - Sameera Senanayake
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
- Health Services and Systems Research, Duke-NUS Medical School, Singapore, Singapore
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van Krugten FCW, Jonker MF, Himmler SFW, Hakkaart-van Roijen L, Brouwer WBF. Estimating a Preference-Based Value Set for the Mental Health Quality of Life Questionnaire (MHQoL). Med Decis Making 2024; 44:64-75. [PMID: 37981788 PMCID: PMC10714713 DOI: 10.1177/0272989x231208645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 09/29/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Health economic evaluations using common health-related quality of life measures may fall short in adequately measuring and valuing the benefits of mental health care interventions. The Mental Health Quality of Life questionnaire (MHQoL) is a standardized, self-administered mental health-related quality of life instrument covering 7 dimensions known to be relevant across and valued highly by people with mental health problems. The aim of this study was to derive a Dutch value set for the MHQoL to facilitate its use in cost-utility analyses. METHODS The value set was estimated using a discrete choice experiment (DCE) with duration that accommodated nonlinear time preferences. The DCE was embedded in a web-based self-complete survey and administered to a representative sample (N = 1,308) of the Dutch adult population. The matched pairwise choice tasks were created using a Bayesian heterogeneous D-efficient design. The overall DCE design comprised 10 different subdesigns, with each subdesign containing 15 matched pairwise choice tasks. Each participant was asked to complete 1 of the subdesigns to which they were randomly assigned. RESULTS The obtained coefficients indicated that "physical health,""mood," and "relationships" were the most important dimensions. All coefficients were in the expected direction and reflected the monotonic structure of the MHQoL, except for level 2 of the dimension "future." The predicted values for the MHQoL ranged from -0.741 for the worst state to 1 for the best state. CONCLUSIONS This study derived a Dutch value set for the recently introduced MHQoL. This value set allows for the generation of an index value for all MHQoL states on a QALY scale and may hence be used in Dutch cost-utility analyses of mental healthcare interventions. HIGHLIGHTS A discrete choice experiment was used to derive a Dutch value set for the MHQoL.This allows the use of the MHQoL in Dutch cost-utility analyses.The dimensions physical health, mood, and relationships were the most important.The utility values range from -0.741 for the worst state to 1 for the best state.
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Affiliation(s)
- Frédérique C. W. van Krugten
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam (ESHPM), Rotterdam, The Netherlands
- Erasmus Centre for Health Economics Rotterdam (EsCHER), Erasmus University Rotterdam, Rotterdam, The Netherlands
- Erasmus Choice Modelling Centre (ECMC), Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Marcel F. Jonker
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam (ESHPM), Rotterdam, The Netherlands
- Erasmus Centre for Health Economics Rotterdam (EsCHER), Erasmus University Rotterdam, Rotterdam, The Netherlands
- Erasmus Choice Modelling Centre (ECMC), Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Sebastian F. W. Himmler
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam (ESHPM), Rotterdam, The Netherlands
- Erasmus Centre for Health Economics Rotterdam (EsCHER), Erasmus University Rotterdam, Rotterdam, The Netherlands
- Erasmus Choice Modelling Centre (ECMC), Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Leona Hakkaart-van Roijen
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam (ESHPM), Rotterdam, The Netherlands
- Erasmus Centre for Health Economics Rotterdam (EsCHER), Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Werner B. F. Brouwer
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam (ESHPM), Rotterdam, The Netherlands
- Erasmus Centre for Health Economics Rotterdam (EsCHER), Erasmus University Rotterdam, Rotterdam, The Netherlands
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Poppe JA, Flint RB, Smits A, Willemsen SP, Storm KK, Nuytemans DH, Onland W, Poley MJ, de Boode WP, Carkeek K, Cassart V, Cornette L, Dijk PH, Hemels MAC, Hermans I, Hütten MC, Kelen D, de Kort EHM, Kroon AA, Lefevere J, Plaskie K, Stewart B, Voeten M, van Weissenbruch MM, Williams O, Zonnenberg IA, Lacaze-Masmonteil T, Pas ABT, Reiss IKM, van Kaam AH, Allegaert K, Hutten GJ, Simons SHP. Doxapram versus placebo in preterm newborns: a study protocol for an international double blinded multicentre randomized controlled trial (DOXA-trial). Trials 2023; 24:656. [PMID: 37817255 PMCID: PMC10566117 DOI: 10.1186/s13063-023-07683-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 09/28/2023] [Indexed: 10/12/2023] Open
Abstract
BACKGROUND Apnoea of prematurity (AOP) is one of the most common diagnoses among preterm infants. AOP often leads to hypoxemia and bradycardia which are associated with an increased risk of death or disability. In addition to caffeine therapy and non-invasive respiratory support, doxapram might be used to reduce hypoxemic episodes and the need for invasive mechanical ventilation in preterm infants, thereby possibly improving their long-term outcome. However, high-quality trials on doxapram are lacking. The DOXA-trial therefore aims to investigate the safety and efficacy of doxapram compared to placebo in reducing the composite outcome of death or severe disability at 18 to 24 months corrected age. METHODS The DOXA-trial is a double blinded, multicentre, randomized, placebo-controlled trial conducted in the Netherlands, Belgium and Canada. A total of 396 preterm infants with a gestational age below 29 weeks, suffering from AOP unresponsive to non-invasive respiratory support and caffeine will be randomized to receive doxapram therapy or placebo. The primary outcome is death or severe disability, defined as cognitive delay, cerebral palsy, severe hearing loss, or bilateral blindness, at 18-24 months corrected age. Secondary outcomes are short-term neonatal morbidity, including duration of mechanical ventilation, bronchopulmonary dysplasia and necrotising enterocolitis, hospital mortality, adverse effects, pharmacokinetics and cost-effectiveness. Analysis will be on an intention-to-treat principle. DISCUSSION Doxapram has the potential to improve neonatal outcomes by improving respiration, but the safety concerns need to be weighed against the potential risks of invasive mechanical ventilation. It is unknown if the use of doxapram improves the long-term outcome. This forms the clinical equipoise of the current trial. This international, multicentre trial will provide the needed high-quality evidence on the efficacy and safety of doxapram in the treatment of AOP in preterm infants. TRIAL REGISTRATION ClinicalTrials.gov NCT04430790 and EUDRACT 2019-003666-41. Prospectively registered on respectively June and January 2020.
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Affiliation(s)
- Jarinda A Poppe
- Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Erasmus University Medical Center Sophia Children's Hospital, Room Sk-4113, Wytemaweg 80, 3015 CN, Rotterdam, the Netherlands
| | - Robert B Flint
- Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Erasmus University Medical Center Sophia Children's Hospital, Room Sk-4113, Wytemaweg 80, 3015 CN, Rotterdam, the Netherlands
- Department of Hospital Pharmacy, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Anne Smits
- Neonatal Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Sten P Willemsen
- Department of Biostatistics, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Kelly K Storm
- Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Erasmus University Medical Center Sophia Children's Hospital, Room Sk-4113, Wytemaweg 80, 3015 CN, Rotterdam, the Netherlands
| | - Debbie H Nuytemans
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, Amsterdam, the Netherlands
| | - Wes Onland
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, Amsterdam, the Netherlands
- Amsterdam Reproduction & Development, Amsterdam, the Netherlands
| | - Marten J Poley
- Department of Paediatric Surgery and Intensive Care, Erasmus University Medical Center Sophia Children's Hospital, Rotterdam, the Netherlands
- Institute for Medical Technology Assessment (iMTA), Erasmus University Rotterdam, Rotterdam, the Netherlands
| | - Willem P de Boode
- Department of Neonatology, Radboud University Medical Center, Radboud Institute for Health Sciences, Amalia Children's Hospital, Nijmegen, the Netherlands
| | - Katherine Carkeek
- Neonatal Intensive Care Unit, Cliniques Universitaires Saint Luc, Brussels, Belgium
| | - Vincent Cassart
- Department of Neonatology, Grand hôpital de Charleroi, Charleroi, Belgium
| | - Luc Cornette
- Department Neonatology, AZ St-Jan, Bruges, Belgium
| | - Peter H Dijk
- Division of Neonatology, Department of Paediatrics, Beatrix Children's Hospital, University Medical Centre Groningen, Groningen, the Netherlands
| | | | - Isabelle Hermans
- Neonatal Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
| | - Matthias C Hütten
- Division of Neonatology, Department of Pediatrics, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Dorottya Kelen
- Neonatal Department, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
| | - Ellen H M de Kort
- Division of Neonatology, Department of Pediatrics, Máxima Medical Center, Veldhoven, the Netherlands
| | - André A Kroon
- Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Erasmus University Medical Center Sophia Children's Hospital, Room Sk-4113, Wytemaweg 80, 3015 CN, Rotterdam, the Netherlands
| | - Julie Lefevere
- Neonatology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Katleen Plaskie
- Department of Neonatology, GasthuisZusters Antwerpen, Antwerp, Belgium
| | - Breanne Stewart
- Quality Management in Clinical Research (QMCR), University of Alberta, Edmonton, AB, Canada
| | - Michiel Voeten
- Department of Neonatal Intensive Care, University Hospital Antwerp, Edegem, Belgium
| | - Mirjam M van Weissenbruch
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, Amsterdam, the Netherlands
- Amsterdam Reproduction & Development, Amsterdam, the Netherlands
| | - Olivia Williams
- Neonatology and Neonatal Intensive Care Unit, CHIREC-Delta Hospital, Brussels, Belgium
| | - Inge A Zonnenberg
- Department of Neonatology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Thierry Lacaze-Masmonteil
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Maternal Infant Child & Youth Research Network (MICYRN), Vancouver, Canada
| | - Arjan B Te Pas
- Division of Neonatology, Department of Paediatrics, Willem-Alexander Children's Hospital, Leiden University Medical Centre, Leiden, the Netherlands
| | - Irwin K M Reiss
- Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Erasmus University Medical Center Sophia Children's Hospital, Room Sk-4113, Wytemaweg 80, 3015 CN, Rotterdam, the Netherlands
| | - Anton H van Kaam
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, Amsterdam, the Netherlands
- Amsterdam Reproduction & Development, Amsterdam, the Netherlands
| | - Karel Allegaert
- Department of Hospital Pharmacy, Erasmus University Medical Center, Rotterdam, the Netherlands
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Clinical Pharmacology and Pharmacotherapy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - G Jeroen Hutten
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, Amsterdam, the Netherlands
- Amsterdam Reproduction & Development, Amsterdam, the Netherlands
| | - Sinno H P Simons
- Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Erasmus University Medical Center Sophia Children's Hospital, Room Sk-4113, Wytemaweg 80, 3015 CN, Rotterdam, the Netherlands.
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Hettiarachchi RM, Kularatna S, Byrnes J, Mulhern B, Chen G, Scuffham PA. Valuing the Dental Caries Utility Index in Australia. Med Decis Making 2023; 43:901-913. [PMID: 37724663 PMCID: PMC10625724 DOI: 10.1177/0272989x231197149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 07/06/2023] [Indexed: 09/21/2023]
Abstract
INTRODUCTION The Dental Caries Utility Index (DCUI) is a new oral health-specific health state classification system for adolescents, consisting of 5 domains: pain/discomfort, difficulty eating food/drinking, worried, ability to participate in activities, and appearance. Each domain has 4 response levels. This study aims to generate an Australian-specific utility algorithm for the DCUI. METHODS An online survey was conducted using a representative sample of the adult Australian general population. The discrete choice experiment (DCE) was used to elicit the preferences on 5 domains. Then, the latent utilities were anchored onto the full health-dead scale using the visual analogue scale (VAS). DCE data were modeled using conditional logit, and 2 anchoring procedures were considered: anchor based on the worst health state and a mapping approach. The optimal anchoring procedure was selected based on the model parsimony and the mean absolute error (MAE). RESULTS A total of 995 adults from the Australian general population completed the survey. The conditional logit estimates on 5 dimensions and levels were monotonic and statistically significant, except for the second level of the "worried" and "appearance" domains. The mapping approach was selected based on a smaller MAE between the 2 anchoring procedures. The Australian-specific tariff of DCUI ranges from 0.1681 to 1. CONCLUSION This study developed a utility algorithm for the DCUI. This value set will facilitate utility value calculations from the participants' responses for DCUI in economic evaluations of dental caries interventions targeted for adolescents. HIGHLIGHTS Preference-based quality-of-life measures (PBMs), which consist of a health state classification system and a set of utility values (a scoring algorithm), are used to generate utility weights for economic evaluations.This study is the first to develop an Australian utility value set for the Dental Caries Utility Index (DCUI), a new oral health-specific classification system for adolescents.The availability of a utility value set will enable using DCUI in economic evaluations of oral health interventions targeted for adolescents and may ultimately lead to more effective and efficient planning of oral health care services.
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Affiliation(s)
- Ruvini M. Hettiarachchi
- Centre for the Business and Economics of Health, The University of Queensland, Brisbane, QLD, Australia
| | - Sanjeewa Kularatna
- Australian Centre for Health Services Innovacions and Centre for Healthcare Transformation, The Queensland University of Technology, QLD, Australia
| | - Joshua Byrnes
- Centre for Applied Health Economics, School of Medicine, Griffith University, QLD, Australia
- Menzies Health Institute Queensland, Griffith University, QLD, Australia
| | - Brendan Mulhern
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Sydney, Australia
| | - Gang Chen
- Centre for Health Economics, Monash University, Clayton, VIC, Australia
| | - Paul A. Scuffham
- Centre for Applied Health Economics, School of Medicine, Griffith University, QLD, Australia
- Menzies Health Institute Queensland, Griffith University, QLD, Australia
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Brusco NK, Danchin M, Watts JJ, Jos C, Loughnan M, Williams T, Ratcliffe J, Hoq M, Tosif S, Kaufman J. Parent-Reported Child and Parent Quality of Life during COVID-19 Testing at an Australian Paediatric Hospital Outpatient Clinic: A Cross-Sectional Study. Healthcare (Basel) 2023; 11:2555. [PMID: 37761750 PMCID: PMC10530877 DOI: 10.3390/healthcare11182555] [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: 08/13/2023] [Revised: 09/04/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Globally, we have seen a drop in adult and child quality of life (QOL) during the COVID-19 pandemic. However, little is known about adult or child QOL during the height of the pandemic in Australia and the impact of government-imposed restrictions, specifically attending school on-site versus home schooling. Our study aimed to establish if QOL in children and parents presenting to a Respiratory Infection Clinic in Victoria, Australia, for COVID-19 PCR testing differed from pre-pandemic population norms. We also explored whether on-site versus home schooling further impacted QOL. Following the child's test and prior to receiving results, consenting parents of children aged 6 to 17 years old completed the Child Health Utility 9 Dimension (CHU9D) instrument on their child's behalf. Parents of children aged birth to five years completed the EuroQOL 5-Dimension 5-Level (EQ-5D-5L) instrument on their own behalf (cross-sectional study). Data analyses utilised quantile regression, adjusting for the child's age, COVID-19 symptoms, gender and chronic health conditions. From July 2020 to November 2021, 2025 parents completed the CHU9D; the mean age for children was 8.41 years (±3.63 SD), and 48.4 per cent were female (n = 980/2025). In the same time period, 5751 parents completed the EQ-5D-5L; the mean age for children was 2.78 years (±1.74 SD), and 52.2 per cent were female (n = 3002/5751). Results showed that QOL scores were lower than pre-pandemic norms for 68 per cent of the CHU9D group and 60 per cent of the EQ-5D-5L group. Comparing periods of on-site to home schooling, there was no difference between the median QOL scores for both CHU9D (0.017, 95% CI -0.05 to 0.01) and EQ-5D-5L (0.000, 95% CI -0.002 to 0.002). Our large-scale study found that while QOL was reduced for children and parents at the point of COVID-19 testing during the pandemic, differing levels of government-imposed restrictions did not further impact QOL. These unique insights will inform decision-making in relation to COVID-19 and future pandemics.
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Affiliation(s)
- Natasha K. Brusco
- Rehabilitation, Ageing and Independent Living (RAIL) Research Centre, School of Primary and Allied Health Care, Monash University, Frankston 3199, Australia
| | - Margie Danchin
- Vaccine Uptake Group, Murdoch Children’s Research Institute, Melbourne 3052, Australia; (M.D.); (M.L.); (T.W.); (J.K.)
- Department of General Medicine, The Royal Children’s Hospital, Melbourne 3052, Australia;
- Department of Paediatrics, School of Population and Global Health, The University of Melbourne, Melbourne 3052, Australia
| | - Jennifer J. Watts
- School of Health and Social Development, Deakin University, Burwood 3125, Australia;
| | - Carol Jos
- Vaccine Uptake Group, Murdoch Children’s Research Institute, Melbourne 3052, Australia; (M.D.); (M.L.); (T.W.); (J.K.)
| | - Myles Loughnan
- Vaccine Uptake Group, Murdoch Children’s Research Institute, Melbourne 3052, Australia; (M.D.); (M.L.); (T.W.); (J.K.)
- Department of General Medicine, The Royal Children’s Hospital, Melbourne 3052, Australia;
| | - Tria Williams
- Vaccine Uptake Group, Murdoch Children’s Research Institute, Melbourne 3052, Australia; (M.D.); (M.L.); (T.W.); (J.K.)
- Infection and Immunity, Murdoch Children’s Research Institute, Melbourne 3052, Australia
| | - Julie Ratcliffe
- Health and Social Care Economics Group, Caring Futures Institute, Flinders University, Adelaide 5001, Australia;
| | - Monsurul Hoq
- Clinical Epidemiology and Biostatistics Unit, Murdoch Children’s Research Institute, Melbourne 3052, Australia;
- RCH National Child Health Poll, The Royal Children’s Hospital, Melbourne 3052, Australia
| | - Shidan Tosif
- Department of General Medicine, The Royal Children’s Hospital, Melbourne 3052, Australia;
- Infection and Immunity, Murdoch Children’s Research Institute, Melbourne 3052, Australia
- Department of Paediatrics, The University of Melbourne, Melbourne 3052, Australia
| | - Jessica Kaufman
- Vaccine Uptake Group, Murdoch Children’s Research Institute, Melbourne 3052, Australia; (M.D.); (M.L.); (T.W.); (J.K.)
- Department of Paediatrics, The University of Melbourne, Melbourne 3052, Australia
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Zhu W, Zhang M, Pan J, Shi L, Gao H, Xie S. Valuing Chinese medicine quality of life-11 dimensions (CQ-11D) health states using a discrete choice experiment with survival duration (DCE TTO). Health Qual Life Outcomes 2023; 21:99. [PMID: 37612664 PMCID: PMC10463386 DOI: 10.1186/s12955-023-02180-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 08/04/2023] [Indexed: 08/25/2023] Open
Abstract
OBJECTIVE To explore generating a health utility value set for the Chinese medicine Quality of life-11 Dimensions (CQ-11D), a utility instrument designed to assess patients' health status while receiving TCM treatment, among the Chinese population. METHODS The study was designed to recruit at least 2400 respondents across mainland China to complete one-to-one, face-to-face interviews. Respondents completed ten discrete choice experiment with survival duration (DCETTO) tasks during interviews. The conditional logit models were used to generate the health utility value set for the CQ-11D using the DCETTO data. RESULTS A total of 2,586 respondents were invited to participate in the survey and 2498 valid interviews were completed (a completion rate of 96.60%). The modified conditional logit model with combing logically inconsistent levels was ultimately selected to construct the health utility value set for the CQ-11D instrument. The range of the measurable health utility value was -0.868 ~ 1. CONCLUSION The study provides the first utility value set for the CQ-11D among the Chinese population. The CQ-11D and corresponding utility value set can be used to measure the health utility values of patients undergoing traditional Chinese medicine interventions, and further facilitate relevant cost-utility analyses. The application of the CQ-11D can support TCM resource allocation in China.
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Affiliation(s)
- Wentao Zhu
- Beijing University of Chinese Medicine, Higher Education Zone in LiangXiang Town, FangShan District, Beijing, 102488, China.
| | - Mengpei Zhang
- Beijing University of Chinese Medicine, Higher Education Zone in LiangXiang Town, FangShan District, Beijing, 102488, China
| | - Jie Pan
- Beijing University of Chinese Medicine, Higher Education Zone in LiangXiang Town, FangShan District, Beijing, 102488, China
| | - Lizheng Shi
- Tulane University, 1440 Canal Street Suite 1900, New Orleans, LA, 70112, USA
| | - Hailiang Gao
- Beijing University of Chinese Medicine, Higher Education Zone in LiangXiang Town, FangShan District, Beijing, 102488, China
| | - Shitong Xie
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
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Yu A, Luo Y, Bahrampour M, Norman R, Street D, Viney R, Devlin N, Mulhern BJ. Understanding the valuation of paediatric health-related quality of life: a qualitative study protocol. BMJ Open 2023; 13:e073039. [PMID: 37532476 PMCID: PMC10401228 DOI: 10.1136/bmjopen-2023-073039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/04/2023] Open
Abstract
INTRODUCTION There is evidence from previous studies that adults value paediatric health-related quality of life (HRQoL) and adult HRQoL differently. Less is known about how adolescents value paediatric HRQoL and whether their valuation and decision-making processes differ from those of adults. Discrete choice experiments (DCEs) are widely used to develop value sets for measures of HRQoL, but there is still much to understand about whether and how the methods choices in the implementation of DCE valuation tasks, such as format, presentation and perspective, affect the decision-making process of participants. This paper describes the protocol for a qualitative study that aims to explore the decision-making process of adults and adolescents when completing DCE valuation tasks. The study will also explore the impact of methodological choices in the design of DCE studies (including decisions about format and presentation) on participants' thinking process. METHODS AND ANALYSIS An interview protocol has been developed using DCE valuation tasks. Interviews will be conducted online via Zoom with both an adolescent and adult sample. In the interview, the participant will be asked to go through some DCE valuation tasks while 'thinking aloud'. After completion of the survey, participants will then be asked some predetermined questions in relation to various aspects of the DCE tasks. Interviews will be recorded and transcribed and analysed using a thematic analysis approach. ETHICS AND DISSEMINATION Ethics approval for this study has been received for the adult sample (UTS ETH20-9632) as well as the youth sample (UTS ETH22-6970) from the University of Technology Sydney Human Research Ethics Committee. Results from this study will inform the methods to be used in development of value sets for use in the health technology assessment of paediatric interventions and treatments. Findings from this study will also be disseminated through national/international conferences and peer-reviewed journals.
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Affiliation(s)
- Alice Yu
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Broadway, New South Wales, Australia
| | - Yiting Luo
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Broadway, New South Wales, Australia
| | - Mina Bahrampour
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Broadway, New South Wales, Australia
| | | | - Deborah Street
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Broadway, New South Wales, Australia
| | - Rosalie Viney
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Broadway, New South Wales, Australia
| | - Nancy Devlin
- Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Brendan James Mulhern
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Broadway, New South Wales, Australia
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9
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Kwon J, Smith S, Raghunandan R, Howell M, Huynh E, Kim S, Bentley T, Roberts N, Lancsar E, Howard K, Wong G, Craig J, Petrou S. Systematic Review of the Psychometric Performance of Generic Childhood Multi-attribute Utility Instruments. APPLIED HEALTH ECONOMICS AND HEALTH POLICY 2023; 21:559-584. [PMID: 37133712 DOI: 10.1007/s40258-023-00806-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/21/2023] [Indexed: 05/04/2023]
Abstract
BACKGROUND Childhood multi-attribute utility instruments (MAUIs) can be used to measure health utilities in children (aged ≤ 18 years) for economic evaluation. Systematic review methods can generate a psychometric evidence base that informs their selection for application. Previous reviews focused on limited sets of MAUIs and psychometric properties, and only on evidence from studies that directly aimed to conduct psychometric assessments. OBJECTIVE This study aimed to conduct a systematic review of psychometric evidence for generic childhood MAUIs and to meet three objectives: (1) create a comprehensive catalogue of evaluated psychometric evidence; (2) identify psychometric evidence gaps; and (3) summarise the psychometric assessment methods and performance by property. METHODS A review protocol was registered with the Prospective Register of Systematic Reviews (PROSPERO; CRD42021295959); reporting followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guideline. The searches covered seven academic databases, and included studies that provided psychometric evidence for one or more of the following generic childhood MAUIs designed to be accompanied by a preference-based value set (any language version): 16D, 17D, AHUM, AQoL-6D, CH-6D, CHSCS-PS, CHU9D, EQ-5D-Y-3L, EQ-5D-Y-5L, HUI2, HUI3, IQI, QWB, and TANDI; used data derived from general and/or clinical childhood populations and from children and/or proxy respondents; and were published in English. The review included 'direct studies' that aimed to assess psychometric properties and 'indirect studies' that generated psychometric evidence without this explicit aim. Eighteen properties were evaluated using a four-part criteria rating developed from established standards in the literature. Data syntheses identified psychometric evidence gaps and summarised the psychometric assessment methods/results by property. RESULTS Overall, 372 studies were included, generating a catalogue of 2153 criteria rating outputs across 14 instruments covering all properties except predictive validity. The number of outputs varied markedly by instrument and property, ranging from 1 for IQI to 623 for HUI3, and from zero for predictive validity to 500 for known-group validity. The more recently developed instruments targeting preschool children (CHSCS-PS, IQI, TANDI) have greater evidence gaps (lack of any evidence) than longer established instruments such as EQ-5D-Y, HUI2/3, and CHU9D. The gaps were prominent for reliability (test-retest, inter-proxy-rater, inter-modal, internal consistency) and proxy-child agreement. The inclusion of indirect studies (n = 209 studies; n = 900 outputs) increased the number of properties with at least one output of acceptable performance. Common methodological issues in psychometric assessment were identified, e.g., lack of reference measures to help interpret associations and changes. No instrument consistently outperformed others across all properties. CONCLUSION This review provides comprehensive evidence on the psychometric performance of generic childhood MAUIs. It assists analysts involved in cost-effectiveness-based evaluation to select instruments based on the application-specific minimum standards of scientific rigour. The identified evidence gaps and methodological issues also motivate and inform future psychometric studies and their methods, particularly those assessing reliability, proxy-child agreement, and MAUIs targeting preschool children.
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Affiliation(s)
- Joseph Kwon
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Sarah Smith
- Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | | | - Martin Howell
- School of Public Health, University of Sydney, Sydney, NSW, Australia
| | - Elisabeth Huynh
- Department of Health Services Research and Policy, Australian National University, Canberra, ACT, Australia
| | - Sungwook Kim
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Thomas Bentley
- Medical Sciences Division, University of Oxford, Oxford, UK
| | - Nia Roberts
- Bodleian Health Care Libraries, University of Oxford, Oxford, UK
| | - Emily Lancsar
- Department of Health Services Research and Policy, Australian National University, Canberra, ACT, Australia
| | - Kirsten Howard
- School of Public Health, University of Sydney, Sydney, NSW, Australia
| | - Germaine Wong
- School of Public Health, University of Sydney, Sydney, NSW, Australia
| | - Jonathan Craig
- College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Stavros Petrou
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.
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10
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Kersten CM, Hermelijn SM, Dossche LWJ, Muthialu N, Losty PD, Schurink M, Rietman AB, Poley MJ, van Rosmalen J, Zanen-van den Adel TPL, Ciet P, von der Thüsen J, Brosens E, Ijsselstijn H, Tiddens HAWM, Wijnen RMH, Schnater JM. COllaborative Neonatal Network for the first European CPAM Trial (CONNECT): a study protocol for a randomised controlled trial. BMJ Open 2023; 13:e071989. [PMID: 36931672 PMCID: PMC10030930 DOI: 10.1136/bmjopen-2023-071989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/19/2023] Open
Abstract
INTRODUCTION Consensus is lacking on the optimal management of asymptomatic congenital pulmonary airway malformation (CPAM). For future studies, the CONNECT consortium (the COllaborative Neonatal Network for the first European CPAM Trial)-an international collaboration of specialised caregivers-has established consensus on a core outcome set of outcome parameters concerning respiratory insufficiency, surgical complications, mass effect and multifocal disease. These outcome parameters have been incorporated in the CONNECT trial, a randomised controlled trial which, in order to develop evidence-based practice, aims to compare conservative and surgical management of patients with an asymptomatic CPAM. METHODS AND ANALYSIS Children are eligible for inclusion after the CPAM diagnosis has been confirmed on postnatal chest CT scan and they remain asymptomatic. On inclusion, children are randomised to receive either conservative or surgical management. Subsequently, children in both groups are enrolled into a standardised, 5-year follow-up programme with three visits, including a repeat chest CT scan at 2.5 years and a standardised exercise tolerance test at 5 years.The primary outcome is exercise tolerance at age 5 years, measured according to the Bruce treadmill protocol. Secondary outcome measures are molecular genetic diagnostics, validated questionnaires-on parental anxiety, quality of life and healthcare consumption-, repeated imaging and pulmonary morbidity during follow-up, as well as surgical complications and histopathology. This trial aims to end the continuous debate surrounding the optimal management of asymptomatic CPAM. ETHICS AND DISSEMINATION This study is being conducted in accordance with the Declaration of Helsinki. The Medical Ethics Review Board of Erasmus University Medical Centre Rotterdam, The Netherlands, has approved this protocol (MEC-2022-0441). Results will be disseminated through peer-reviewed scientific journals and conference presentations. TRIAL REGISTRATION NUMBER NCT05701514.
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Affiliation(s)
- Casper M Kersten
- Paediatric Surgery, Erasmus MC Sophia Children's Hospital, Rotterdam, Zuid-Holland, Netherlands
| | - Sergei M Hermelijn
- Paediatric Surgery, Erasmus MC Sophia Children's Hospital, Rotterdam, Zuid-Holland, Netherlands
| | - Louis W J Dossche
- Paediatric Surgery, Erasmus MC Sophia Children's Hospital, Rotterdam, Zuid-Holland, Netherlands
| | - Nagarajan Muthialu
- Tracheal Team, Department of Cardiothoracic Surgery, Great Ormond Street Hospital for Children, London, UK
| | - Paul D Losty
- Paediatric Surgery, Institute Of Life Course And Medical Sciences, University of Liverpool, Liverpool, UK
- Paediatric Surgery, Ramathibodi Hospital Mahidol University, Bangkok, Thailand
| | - Maarten Schurink
- Paediatric Surgery, Radboud University Medical Centre Amalia Children's Hospital, Nijmegen, the Netherlands, Nijmegen, Netherlands
| | - André B Rietman
- Child and Adolescent Psychiatry, Erasmus MC Sophia Children Hospital, Rotterdam, Zuid-Holland, Netherlands
| | - Marten J Poley
- Paediatric Surgery, Erasmus MC Sophia Children's Hospital, Rotterdam, Zuid-Holland, Netherlands
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Rotterdam, Netherlands
| | - Joost van Rosmalen
- Biostatistics, Erasmus MC, Rotterdam, Zuid-Holland, Netherlands
- Epidemiology, Erasmus MC, Rotterdam, Zuid-Holland, Netherlands
| | | | - Pierluigi Ciet
- Radiology and Nuclear Medicine, Erasmus MC Sophia Children's Hospital, Rotterdam, Zuid-Holland, Netherlands
- Paediatric Pulmonology, Erasmus MC Sophia Children's Hospital, Rotterdam, Zuid-Holland, Netherlands
- Radiology and Medical Sciences, University of Cagliari, Cagliari, Italy
| | | | - Erwin Brosens
- Clinical Genetics, Erasmus MC Sophia Children's Hospital, Rotterdam, Zuid-Holland, Netherlands
- Erasmus MC Cancer Centre, Rotterdam, Zuid-Holland, Netherlands
| | - Hanneke Ijsselstijn
- Paediatric Surgery, Erasmus MC Sophia Children's Hospital, Rotterdam, Zuid-Holland, Netherlands
| | - Harm A W M Tiddens
- Radiology and Nuclear Medicine, Erasmus MC Sophia Children's Hospital, Rotterdam, Zuid-Holland, Netherlands
- Paediatric Pulmonology, Erasmus MC Sophia Children's Hospital, Rotterdam, Zuid-Holland, Netherlands
| | - Rene M H Wijnen
- Paediatric Surgery, Erasmus MC Sophia Children's Hospital, Rotterdam, Zuid-Holland, Netherlands
| | - J Marco Schnater
- Paediatric Surgery, Erasmus MC Sophia Children's Hospital, Rotterdam, Zuid-Holland, Netherlands
- Tracheal Team, Department of Cardiothoracic Surgery, Great Ormond Street Hospital for Children, London, UK
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11
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Ratcliffe J, Bourke S, Li J, Mulhern B, Hutchinson C, Khadka J, Milte R, Lancsar E. Valuing the Quality-of-Life Aged Care Consumers (QOL-ACC) Instrument for Quality Assessment and Economic Evaluation. PHARMACOECONOMICS 2022; 40:1069-1079. [PMID: 35922616 PMCID: PMC9550725 DOI: 10.1007/s40273-022-01158-2] [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: 05/10/2022] [Indexed: 05/19/2023]
Abstract
OBJECTIVE This paper reports on the valuation of the classification system for the Quality-of-Life Aged Care Consumers (QOL-ACC) instrument using a discrete choice experiment (DCE) with duration with a large sample of older people receiving aged care services. METHODS A DCE with 160 choice sets of two quality-of-life state-survival duration combinations blocked into 20 survey versions, with eight choice sets in each version, was designed and administered through an on-line survey to older Australians receiving aged care services in home and via interviewer facilitation with older people in residential aged care settings. Model specifications investigating preferences with respect to survival duration and interactions between QOL-ACC dimension levels were estimated. Utility weights were developed, with estimated coefficients transformed to the 0 (being dead) to 1 (full health) scale to generate a value set suitable for application in quality assessment and for the calculation of quality-adjusted life-years for use in economic evaluation. RESULTS In total, 953 older people completed the choice experiment with valid responses. The estimation results from econometric model specifications indicated that utility increased with survival duration and decreased according to quality-of-life impairment levels. An Australian value set (range - 0.56 to 1.00) was generated for the calculation of utilities for all QOL-ACC states. CONCLUSION The QOL-ACC is unique in its focus on measuring and valuing quality of life from the perspective of older people themselves, thereby ensuring that the preferences of aged care service users are the primary focus for quality assessment and economic evaluation.
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Affiliation(s)
- Julie Ratcliffe
- Health and Social Care Economics Group, Caring Futures Institute, Flinders University, Bedford Park, SA, Australia.
| | - Siobhan Bourke
- Department of Health Services Research and Policy, College of Health and Medicine, The Australian National University, Canberra, ACT, Australia
| | - Jinhu Li
- Department of Health Services Research and Policy, College of Health and Medicine, The Australian National University, Canberra, ACT, Australia
| | - Brendan Mulhern
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Ultimo, NSW, Australia
| | - Claire Hutchinson
- Health and Social Care Economics Group, Caring Futures Institute, Flinders University, Bedford Park, SA, Australia
| | - Jyoti Khadka
- Health and Social Care Economics Group, Caring Futures Institute, Flinders University, Bedford Park, SA, Australia
| | - Rachel Milte
- Health and Social Care Economics Group, Caring Futures Institute, Flinders University, Bedford Park, SA, Australia
| | - Emily Lancsar
- Department of Health Services Research and Policy, College of Health and Medicine, The Australian National University, Canberra, ACT, Australia
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12
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Rowen D, Mukuria C, McDool E. A Systematic Review of the Methodologies and Modelling Approaches Used to Generate International EQ-5D-5L Value Sets. PHARMACOECONOMICS 2022; 40:863-882. [PMID: 35829931 DOI: 10.1007/s40273-022-01159-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/15/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND The international protocol for valuing EQ-5D-5L focuses upon prescribed preference elicitation methods and design. However, there are no recommendations around sampling, recruitment, data analysis or modelling to generate the EQ-5D-5L value set. This review examines methods used to generate international EQ-5D-5L values sets, across sampling, recruitment, data analysis, modelling, assessing model performance and selection of the recommended value set. METHODS All published EQ-5D-5L value sets were identified by a systematic search and confirmed by the EuroQol Group. Data were extracted to assess sampling, recruitment, preference elicitation techniques and design, data analysis, modelling, assessing model performance, and vale set selection. These are summarised in tables. RESULTS The review included 29 studies with 27 value sets generated using time-trade-off (TTO) data (n = 10) only or using a hybrid model that combines TTO and discrete choice experiment data (n = 17). TTO data were most commonly estimated using a heteroscedastic Tobit model with censoring at - 1, and the hybrid model using a specially created program. Model performance was generally assessed using goodness of fit, logical consistency and significance of coefficients, suitability of the model for the data characteristics and parsimony, though not all selected models account for the specific characteristics of the data. DISCUSSION Different assessments of model performance and reasoning are provided for the selection of the recommended value set for a country. This raises the question of valid criteria for selecting a recommended value set and whether this should rely upon researchers' recommendations when value sets are often used to inform public policy.
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Affiliation(s)
- Donna Rowen
- School of Health and Related Research, University of Sheffield, Regent Court, 30 Regent Street, Sheffield, S1 4DA, UK.
| | - Clara Mukuria
- School of Health and Related Research, University of Sheffield, Regent Court, 30 Regent Street, Sheffield, S1 4DA, UK
| | - Emily McDool
- School of Health and Related Research, University of Sheffield, Regent Court, 30 Regent Street, Sheffield, S1 4DA, UK
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13
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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.
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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
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14
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Xie S, Wu J, Chen G. Discrete choice experiment with duration versus time trade-off: a comparison of test-retest reliability of health utility elicitation approaches in SF-6Dv2 valuation. Qual Life Res 2022; 31:2791-2803. [PMID: 35610406 DOI: 10.1007/s11136-022-03159-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To evaluate and compare the test-retest reliability of discrete choice experiments with duration (DCETTO) and time trade-off (TTO) in the Chinese SF-6Dv2 valuation study. METHODS During face-to-face interviews, a representative sample of the Chinese general population completed 8 TTO tasks and 10 DCETTO tasks. Retest interviews were conducted after two weeks. For both DCETTO and TTO, the consistency of raw responses between the two tests was firstly evaluated at the individual level. Regressions were conducted to investigate the association between the test-retest reliability and the respondents' characteristics and the severity of health states. Consistency was then analyzed at the aggregate level by comparing the rank order of the coefficients of dimensions. RESULTS In total, 162 respondents (51.9% male; range 18-80 years) completed the two tests. The intraclass correlations coefficient 0.958 for TTO, with identical values accounting for 59.3% of observations. 76.4% of choices were identical for DCETTO, with a Kappa statistic of 0.528. Respondents' characteristics had no significant impact while the severity of health states valued in TTO and DCETTO tasks had a significant impact on the test-retest reliability. Both approaches produced relatively stable rank order of dimensions in constrained model estimations between test and retest data. CONCLUSIONS Individual responses of both approaches are relatively stable over time. The rank orders of dimensions in model estimations between test and retest for TTO and DCETTO are also consistent. The differences of utility estimation between the two tests for DCETTO need to be further investigated based on a larger sample size.
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Affiliation(s)
- Shitong Xie
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, ON, Canada.,School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Jing Wu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China. .,Center for Social Science Survey and Data, Tianjin University, Tianjin, China.
| | - Gang Chen
- Monash Business School, Centre for Health Economics, Monash University, Melbourne, VIC, Australia.
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15
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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: 25] [Impact Index Per Article: 12.5] [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.
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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
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16
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Rogers HJ, Sagabiel J, Marshman Z, Rodd HD, Rowen D. Adolescent valuation of CARIES-QC-U: a child-centred preference-based measure of dental caries. Health Qual Life Outcomes 2022; 20:18. [PMID: 35115013 PMCID: PMC8812216 DOI: 10.1186/s12955-022-01918-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 01/13/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives This study develops an adolescent value set for a child-centred dental caries-specific measure of oral health-related quality of life (OHRQoL) based upon CARIES-QC (Caries Impacts and Experiences Questionnaire for Children). This study develops a new approach to valuing child health by eliciting adolescent preferences and anchoring these onto the 1–0 full health-dead QALY (quality adjusted life year) scale using ordinal adult preferences. Methods Two online surveys were created to elicit preferences for the CARIES-QC classification system. The first comprised best–worst scaling (BWS) tasks for completion by adolescents aged 11–16 years. The second comprised discrete choice experiment tasks with a duration attribute (DCETTO) for completion by adults aged over 18 years. Preferences were modelled using the conditional logit model. Mapping regressions anchored the adolescent BWS data onto the QALY scale using adult DCETTO values, since the BWS survey data alone cannot generate anchored values. Results 723 adolescents completed the BWS survey and 626 adults completed the DCETTO survey. The samples were representative of UK adolescent and adult populations. Fully consistent and robust models were produced for both BWS and DCETTO data. BWS preferences were mapped onto DCETTO values, resulting utility estimates for each health state defined by the classification system. Conclusion This is the first measure with predetermined scoring based on preferences to be developed specifically for use in child oral health research, and uses a novel technique to generate a value set using adolescent preferences. The estimates can be used to generate QALYs in economic evaluations of interventions to improve children’s oral health. Supplementary Information The online version contains supplementary material available at 10.1186/s12955-022-01918-w.
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Affiliation(s)
- H J Rogers
- School of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle-upon-Tyne, UK.
| | - J Sagabiel
- Department of Economics, Swedish University of Agricultural Economics, Uppsala, Sweden
| | - Z Marshman
- Unit of Oral Health, Dentistry and Society, School of Clinical Dentistry, University of Sheffield, Sheffield, UK
| | - H D Rodd
- Unit of Oral Health, Dentistry and Society, School of Clinical Dentistry, University of Sheffield, Sheffield, UK
| | - D Rowen
- Health Economics and Decision Science, School of Health and Related Research, University of Sheffield, Sheffield, UK
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Palacios-Cartagena RP, Pastor-Cisneros R, Adsuar JC, Pérez-Gómez J, García-Gordillo MÁ, Mendoza-Muñoz M. CHU9D Normative Data in Peruvian Adolescents. J Pers Med 2021; 11:1272. [PMID: 34945744 PMCID: PMC8704949 DOI: 10.3390/jpm11121272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Due to the vulnerability to protective and risk factors during adolescence, there is a growing interest in the study of health-related quality of life (HRQoL) at this stage. The CHU9D is a generic and practical HRQoL instrument that provides values on all dimensions of self-perceived health, in addition to providing utilities and a cost-utility assessment fee, unlike other instruments. This study was conducted with an adolescent population in Peru. The main objective of this article is to report the normative values of the CHU9D questionnaire in Peruvian adolescents. METHODS The CHU9D questionnaire was administered to Peruvian adolescent students. A total of 1229 young people participated in the survey. The CHU9D score was reflected as a function of gender, age, weight, height, and educational level. RESULTS The mean CHU9D utility index for the total sample was 0.890; this rating was significantly better for boys with 0.887 and girls with 0.867. The ceiling effect was higher for male adolescents with 32.6 than for female adolescents. CONCLUSIONS The results of the present study show that adolescents in school show a positive perception of HRQoL. It is also concluded that the CHU9D instrument can be effectively applied to economic evaluations for interventions to improve the quality of life of adolescents.
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Affiliation(s)
- Roxana Paola Palacios-Cartagena
- Promoting a Healthy Society Research Group (PHeSO), Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain; (R.P.P.-C.); (J.C.A.); (M.M.-M.)
| | - Raquel Pastor-Cisneros
- Promoting a Healthy Society Research Group (PHeSO), Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain; (R.P.P.-C.); (J.C.A.); (M.M.-M.)
| | - Jose Carmelo Adsuar
- Promoting a Healthy Society Research Group (PHeSO), Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain; (R.P.P.-C.); (J.C.A.); (M.M.-M.)
| | - Jorge Pérez-Gómez
- Health, Economy, Motricity and Education Research Group (HEME), Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain;
| | | | - María Mendoza-Muñoz
- Promoting a Healthy Society Research Group (PHeSO), Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain; (R.P.P.-C.); (J.C.A.); (M.M.-M.)
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18
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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.
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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
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19
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Rowen D, Powell P, Mukuria C, Carlton J, Norman R, Brazier J. Deriving a Preference-Based Measure for People With Duchenne Muscular Dystrophy From the DMD-QoL. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2021; 24:1499-1510. [PMID: 34593174 DOI: 10.1016/j.jval.2021.03.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 02/23/2021] [Accepted: 03/09/2021] [Indexed: 05/19/2023]
Abstract
OBJECTIVES This study generates a preference-based measure for capturing the quality of life of people with Duchenne muscular dystrophy (DMD) from a new measure of quality of life, DMD-QoL. METHODS A health state classification system was derived from the DMD-QoL based on psychometric performance of items, factor analysis, and item response theory analysis. Preferences for health states described by the classification system were elicited using an online discrete choice experiment survey with life years as an additional attribute, from members of the UK general population (n = 1043). Discrete choice experiment data was modeled using a conditional fixed-effects logit model and utility estimates were directly anchored on the 1 to 0 full health-dead scale. RESULTS The health state classification system has 8 dimensions: mobility, difficulty using hands, difficulty breathing, pain, tiredness, worry, participation, and feeling good about yourself. The standard model had mostly statistically significant coefficients and reflected the instrument's monotonic structure. However, 2 dimensions had inconsistent coefficients (where utility increased as health worsened) and a consistent model was estimated that merged adjacent inconsistent severity levels. The best state defined by the classification system has a value of 1 and the worst state has a value of -0.559. CONCLUSION The modeled results enable DMD-QoL-8D utility values to be generated using DMD-QoL or DMD-QoL-8D data to generate QALYs for people with DMD. QALYs can then be used to inform economic models of the cost-effectiveness of interventions in DMD. Future research comparing the psychometric performance of DMD-QoL-8D to existing generic preference-based measures, including EQ-5D-5L, is recommended.
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Affiliation(s)
- Donna Rowen
- School of Health and Related Research (ScHARR), University of Sheffield, England, UK.
| | - Philip Powell
- School of Health and Related Research (ScHARR), University of Sheffield, England, UK
| | - Clara Mukuria
- School of Health and Related Research (ScHARR), University of Sheffield, England, UK
| | - Jill Carlton
- School of Health and Related Research (ScHARR), University of Sheffield, England, UK
| | - Richard Norman
- School of Public Health, Curtin University, Perth, Australia
| | - John Brazier
- School of Health and Related Research (ScHARR), University of Sheffield, England, UK
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20
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Wu J, Xie S, He X, Chen G, Bai G, Feng D, Hu M, Jiang J, Wang X, Wu H, Wu Q, Brazier JE. Valuation of SF-6Dv2 Health States in China Using Time Trade-off and Discrete-Choice Experiment with a Duration Dimension. PHARMACOECONOMICS 2021; 39:521-535. [PMID: 33598860 PMCID: PMC8079294 DOI: 10.1007/s40273-020-00997-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/24/2020] [Indexed: 05/10/2023]
Abstract
OBJECTIVES Our objective was to generate a value set for the SF-6Dv2 using time trade-off (TTO) and a discrete-choice experiment with a duration dimension (DCETTO) in China. METHODS A large representative sample of the Chinese general population was recruited from eight provinces/municipalities in China, stratified by age, sex, education level, and proportion of urban/rural residence. Respondents completed eight TTO tasks and ten DCETTO tasks during face-to-face interviews. Ordinary least squares (OLS), random-effects, fixed-effects, and Tobit models were used for TTO data, and conditional logit and mixed logit models were used for DCETTO. The monotonicity of model coefficients and the consistency of the predicted values according to intraclass correlation coefficient (ICC), mean absolute difference (MAD), and mean squared difference (MSD) were compared between the two approaches. RESULTS In total, 3320 respondents (50.3% male; range 18-90 years) were recruited. The random-effects model and the conditional logit model were preferred for the TTO and DCETTO, respectively. The TTO values ranged from - 0.277 to 1, with 927 (4.94%) states considered as worse than dead (WTD). The corresponding range for DCETTO was - 0.535 to 1, with a higher WTD of 8.50%. DCETTO presented minor non-monotonicity with the coefficients in two dimensions. Values from the two approaches were highly consistent (ICC 0.9804, MAD 0.0588, MSD 0.0055), albeit those with DCETTO were slightly lower than those with TTO. The value set generated by TTO was preferred given the better monotonicity and the statistical significance of coefficients. CONCLUSIONS The Chinese value set for the SF-6Dv2 was established based on the TTO approach, but the DCETTO also performed well. Minor issues of non-monotonicity did present for DCETTO.
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Affiliation(s)
- Jing Wu
- School of Pharmaceutical Science and Technology, Tianjin University, Room 209, 24th building, 92th Weijin Road, Nankai District, Tianjin, 300072, China.
- Center for Social Science Survey and Data, Tianjin University, Tianjin, China.
| | - Shitong Xie
- School of Pharmaceutical Science and Technology, Tianjin University, Room 209, 24th building, 92th Weijin Road, Nankai District, Tianjin, 300072, China
- Center for Social Science Survey and Data, Tianjin University, Tianjin, China
| | - Xiaoning He
- School of Pharmaceutical Science and Technology, Tianjin University, Room 209, 24th building, 92th Weijin Road, Nankai District, Tianjin, 300072, China
- Center for Social Science Survey and Data, Tianjin University, Tianjin, China
| | - Gang Chen
- Monash Business School, Centre for Health Economics, Monash University, Melbourne, VIC, Australia
| | - Gengliang Bai
- School of Health Economics and Management, Nanjing University of Chinese Medicine, Nanjing, China
| | - Da Feng
- School of Pharmacy, Huazhong University of Science and Technology, Wuhan, China
| | - Ming Hu
- West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Jie Jiang
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Xiaohui Wang
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Hongyan Wu
- School of Medicine and Health Management, Guizhou Medical University, Guiyang, China
| | - Qunhong Wu
- Department of Health Policy, Health Management College, Harbin Medical University, Harbin, China
- Department of Social Medicine, School of Public Health, Harbin Medical University, Harbin, China
| | - John E Brazier
- School of Health and Related Research, University of Sheffield, Sheffield, UK
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21
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Rowen D, Keetharuth AD, Poku E, Wong R, Pennington B, Wailoo A. A Review of the Psychometric Performance of Selected Child and Adolescent Preference-Based Measures Used to Produce Utilities for Child and Adolescent Health. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2021; 24:443-460. [PMID: 33641779 DOI: 10.1016/j.jval.2020.09.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 09/08/2020] [Accepted: 09/25/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE This review examined the psychometric performance of 4 generic child- and adolescent-specific preference-based measures that can be used to produce utilities for child and adolescent health. METHODS A systematic search was undertaken to identify studies reporting the psychometric performance of the Child Health Utility (CHU9D), EQ-5D-Y (3L or 5L), and Health Utilities Index Mark 2 (HUI2) or Mark 3 (HUI3) in children and/or adolescents. Data were extracted to assess known-group validity, convergent validity, responsiveness, reliability, acceptability, and feasibility. Data were extracted separately for the dimensions and utility index where this was reported. RESULTS The review included 76 studies (CHU9D n = 12, EQ-5D-Y-3L n = 20, HUI2 n = 26,HUI3 n = 43), which varied considerably across conditions and sample size. EQ-5D-Y-3L had the largest amount of evidence of good psychometric performance in proportion to the number of studies examining performance. The majority of the evidence related to EQ-5D-Y-3L was based on dimensions. CHU9D was assessed in fewer studies, but the majority of studies found evidence of good psychometric performance. Evidence for HUI2 and HUI3 was more mixed, but the studies were more limited in sample size and statistical power, which was likely to have affected performance. CONCLUSIONS The heterogeneity of published studies means that the evidence is based on studies across a range of countries, populations and conditions, using different study designs, different languages, different value sets and different statistical techniques. Evidence for CHU9D in particular is based on a limited number of studies. The findings raise concerns about the comparability of self-report and proxy-report responses to generate utility values for children and adolescents.
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Affiliation(s)
- Donna Rowen
- School of Health and Related Research, University of Sheffield, Sheffield, England, UK.
| | - Anju D Keetharuth
- School of Health and Related Research, University of Sheffield, Sheffield, England, UK
| | - Edith Poku
- School of Health and Related Research, University of Sheffield, Sheffield, England, UK
| | - Ruth Wong
- School of Health and Related Research, University of Sheffield, Sheffield, England, UK
| | - Becky Pennington
- School of Health and Related Research, University of Sheffield, Sheffield, England, UK
| | - Allan Wailoo
- School of Health and Related Research, University of Sheffield, Sheffield, England, UK
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22
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O'Hara J, Martin AP, Nugent D, Witkop M, Buckner TW, Skinner MW, O'Mahony B, Mulhern B, Morgan G, Li N, Sawyer EK. Evidence of a disability paradox in patient-reported outcomes in haemophilia. Haemophilia 2021; 27:245-252. [PMID: 33595148 PMCID: PMC8048516 DOI: 10.1111/hae.14278] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/13/2021] [Accepted: 02/08/2021] [Indexed: 01/16/2023]
Abstract
INTRODUCTION People with inherited and long-term conditions such as haemophilia have been shown to adapt to their levels of disability, often reporting better quality of life (QoL) than expected from the general population (the disability paradox). AIM To investigate the disability paradox in people with haemophilia in the United States by examining preference differences in health state valuations versus the general population. METHODS We conducted a discrete choice experiment including duration to capture valuations of health states based on patient-reported preferences. Participants indicated their preferences for hypothetical health states using the EQ-5D-5L, where each participant completed 15 of the 120 choice tasks. Response inconsistencies were evaluated with dominated and repeated scenarios. Conditional-logit regressions with random sampling of the general population responses were used to match the sample of patients with haemophilia. We compared model estimates and derived preferences associated with EQ-5D-5L health states. RESULTS After removing respondents with response inconsistencies, 1327/2138 (62%) participants remained (177/283 haemophilia; 1150/1900 general population). Patients with haemophilia indicated higher preference value for 99% of EQ-5D-5L health states compared to the general population (when matched on age and gender). The mean health state valuation difference of 0.17 indicated a meaningful difference compared to a minimal clinically important difference threshold of 0.07. Results were consistent by haemophilia type and severity. CONCLUSION Our findings indicated the presence of a disability paradox among patients with haemophilia, who reported higher health states than the general population, suggesting the impact of haemophilia may be underestimated if general population value sets are used.
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Affiliation(s)
- Jamie O'Hara
- HCD Economics, Daresbury, UK.,Faculty of Health and Social Care, University of Chester, Chester, UK
| | | | - Diane Nugent
- Department of Pediatrics and Division of Hematology at CHOC Children's Hospital, Center for Inherited Blood Disorders, Orange, CA, USA
| | | | - Tyler W Buckner
- Hemophilia and Thrombosis Center, University of Colorado School of Medicine, Aurora, CO, USA
| | - Mark W Skinner
- Institute for Policy Advancement, Ltd, Washington, DC, USA.,McMaster University, Hamilton, ON, Canada
| | - Brian O'Mahony
- Irish Haemophilia Society, Dublin, UK.,Trinity College, Dublin, UK
| | - Brendan Mulhern
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Sydney, NSW, Australia
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23
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Vermaire JH, Kalf SM, Schuller AA. Oral health and oral health behaviour of adolescents with mild or borderline intellectual disabilities compared with a national representative sample of 17-year-olds in the Netherlands. JOURNAL OF APPLIED RESEARCH IN INTELLECTUAL DISABILITIES 2020; 34:615-623. [PMID: 33169895 PMCID: PMC7894337 DOI: 10.1111/jar.12829] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/17/2020] [Accepted: 10/17/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND People with intellectual disabilities have worse health outcomes compared to their peers without. However, regarding oral health parameters, recent systematic reviews reported conflicting evidence. The aim was to assess whether adolescents with MBID differ from their peers in oral health and oral health behaviour. METHODS Ninety seven adolescents with MBID participated in this comparative study. Outcomes were compared to data of 17-year-old Dutch adolescents (n = 581) from a national epidemiological study on oral health and oral health behaviour. RESULTS Adolescents with MBID showed worse oral health outcomes and poorer oral hygiene than their peers from the general population. Furthermore, they visit the dentist less regularly, brush less frequently, eat main-dishes less frequently and have higher levels of dental anxiety. CONCLUSION Adolescents with MBID have poorer oral health and show worse oral health-promoting behaviours than their peers in the general population. Targeted interventions to reach this vulnerable group are necessary.
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Affiliation(s)
- Jan Hendrik Vermaire
- TNO Child Health - Oral Health Division, Leiden, The Netherlands.,Centre for Dentistry and Oral Hygiene, University Medical Centre Groningen, Groningen, The Netherlands
| | - Sonja M Kalf
- SBT, Centre for Special Care Dentistry, Amsterdam, The Netherlands
| | - Annemarie A Schuller
- TNO Child Health - Oral Health Division, Leiden, The Netherlands.,Centre for Dentistry and Oral Hygiene, University Medical Centre Groningen, Groningen, The Netherlands
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24
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Hettiarachchi R, Kularatna S, Byrnes J, Mulhern B, Chen G, Scuffham PA. Valuation study for a preference-based quality of life measure for dental caries (Dental Caries Utility Index - DCUI) among Australian adolescents - study protocol. BMJ Open 2020; 10:e038626. [PMID: 33087374 PMCID: PMC7580066 DOI: 10.1136/bmjopen-2020-038626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION A new health state classification system has been developed for dental caries - Dental Caries Utility Index (DCUI) to facilitate the assessment of oral health interventions in the cost-utility analysis (CUA). This paper reports the protocol for a valuation study, which aims to generate a preference-based algorithm for the classification system for the DCUI. METHODS AND ANALYSIS Discrete choice experiments (DCEs) will be conducted to value health states generated by the DCUI classification system and preferences for these health states will be modelled to develop a utility algorithm. DCEs produce utility values on a latent scale and these values will be anchored into the full health-dead scale to calculate the quality-adjusted life years in CUA. There is no previous evidence for the most suitable anchoring method for dental caries health state valuation. Hence, we will first conduct pilot studies with two anchoring approaches; DCE including duration attribute and DCE anchoring to worst heath state in Visual Analogue Scale. Based on the pilot studies, the most suitable anchoring method among two approaches will be used in the main valuation survey, which will be conducted as an online survey among a representative sample of 2000 adults from the Australian general population. Participants will be asked to complete a set of DCE choice tasks along with anchoring tasks, basic social-demographic questions, DCUI, a generic preference-based measure and oral health quality of life instrument. ETHICS AND DISSEMINATION Ethical approval for this study was obtained from the Human Research Ethics Committee, Griffith University (reference number HREC/2019/550). The generated algorithm will facilitate the use of the new dental caries preference-based measure in economic evaluations of oral health interventions. The results will be disseminated through journal articles and professional conferences.
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Affiliation(s)
- Ruvini Hettiarachchi
- Centre for Applied Health Economics, School of Medicine, Griffith University, Nathan, Queensland, Australia
- Menzies Health Institute Queensland, Griffith University, Nathan, Queensland, Australia
| | - Sanjeewa Kularatna
- Australian Centre for Health Services Innovation, Queensland University of Technology, Institute of Health and Biomedical Innovation, Kelvin Grove, Queensland, Australia
| | - Joshua Byrnes
- Centre for Applied Health Economics, School of Medicine, Griffith University, Nathan, Queensland, Australia
- Menzies Health Institute Queensland, Griffith University, Nathan, Queensland, Australia
| | - Brendan Mulhern
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Gang Chen
- Centre for Health Economics, Monash University, Clayton, Victoria, Australia
| | - Paul A Scuffham
- Centre for Applied Health Economics, School of Medicine, Griffith University, Nathan, Queensland, Australia
- Menzies Health Institute Queensland, Griffith University, Nathan, Queensland, Australia
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25
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Xie S, Wu J, He X, Chen G, Brazier JE. Do Discrete Choice Experiments Approaches Perform Better Than Time Trade-Off in Eliciting Health State Utilities? Evidence From SF-6Dv2 in China. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2020; 23:1391-1399. [PMID: 33032784 DOI: 10.1016/j.jval.2020.06.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/09/2020] [Accepted: 06/14/2020] [Indexed: 05/18/2023]
Abstract
OBJECTIVES To explore the acceptability, consistency, and accuracy of eliciting health state utility values using discrete choice experiment (DCE) and DCE with life duration dimension (DCETTO) as compared with conventional time trade-off (TTO) by using the SF-6Dv2. METHODS During face-to-face interviews, a representative sample of the general population in Tianjin, China, completed 8 TTO tasks and 10 DCE/DCETTO tasks, with the order of TTO and DCE/DCETTO being randomized. The fixed-effect model and conditional logit models were used for TTO and DCEs data estimation, respectively. Acceptability was assessed by self-reported difficulties in understanding/answering. Consistency was observed by the monotonicity of model coefficients. Accuracy was evaluated by investigating differences between observed and predicted TTO values using intraclass correlation coefficient, mean absolute difference, and root mean square difference. RESULTS A total of 503 respondents (53.7% male; range, 18-86 years) were included, with comparable characteristics between respondents who completed DCE (N = 252) and DCETTO (N = 251). No significant difference was observed in self-reported difficulties among 3 approaches. The monotonicity of coefficients could not be achieved for 2 DCE approaches, even when combining the inconsistent levels. The health state utility values generated by DCE were generally higher than those generated by TTO, whereas DCETTO was lower than TTO. The TTO had a better prediction accuracy than the DCEs. CONCLUSIONS Two DCE approaches are feasible for eliciting health state utility values; however, they are not considered to be easier to understand/answer than TTO. There are systematic differences in the health state utility values generated by 3 approaches. The issue of non-monotonicity from 2 DCE approaches remains a concern.
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Affiliation(s)
- Shitong Xie
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China; Center for Social Science Survey and Data, Tianjin University, Tianjin, China
| | - Jing Wu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China; Center for Social Science Survey and Data, Tianjin University, Tianjin, China.
| | - Xiaoning He
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China; Center for Social Science Survey and Data, Tianjin University, Tianjin, China
| | - Gang Chen
- Centre for Health Economics, Monash Business School, Monash University, Melbourne, Victoria, Australia
| | - John E Brazier
- School of Health and Related Research, University of Sheffield, Sheffield, England, UK
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Reckers-Droog V, Goorden M, Kaminer Y, van Domburgh L, Brouwer W, Hakkaart-van Roijen L. Presentation and validation of the Abbreviated Self Completion Teen-Addiction Severity Index (ASC T-ASI): A preference-based measure for use in health-economic evaluations. PLoS One 2020; 15:e0238858. [PMID: 32915870 PMCID: PMC7485871 DOI: 10.1371/journal.pone.0238858] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 08/25/2020] [Indexed: 11/19/2022] Open
Abstract
Economic evaluations of new youth mental health interventions require preference-based outcome measures that capture the broad benefits these interventions can have for adolescents. The Abbreviated Self Completion Teen-Addiction Severity Index (ASC T-ASI) was developed to meet the need for such a broader measure. It assesses self reported problems in seven important domains of adolescents' lives, including school performance and family relationships, and is intended for use in economic evaluations of relevant interventions. The aim of the current study was to present the ASC T-ASI and examine its validity as well as its ability to distinguish between adolescents with and without problems associated with substance use and delinquency. The validation study was conducted in a sample of adolescents (n = 167) aged 12-18 years, who received in- or outpatient care in a youth mental health and (enclosed) care facility in the Netherlands. To examine its feasibility, test-retest reliability, and convergent validity, respondents completed the ASC T-ASI, as well as the EQ-5D-3L and SDQ at baseline and after a two-week interval using a counterbalanced method. The ASC T-ASI descriptive system comprises seven domains: substance use, school, work, family, social relationships, justice, and mental health, each expressing self reported problems on a five-point Likert scale (ranging from having 'no problem' to having a 'very large problem'). The majority of respondents (>70%) completed the ASC T-ASI within 10 minutes and appraised the questions as (very) easy and (very) comprehensible. Test-retest reliability was adequate (Kw values 0.26-0.55). Correlations with the supplementary measures were moderate to high (rs 0.30-0.50), suggesting convergent validity. The ASC T-ASI is a promising and valid measure for assessing self reported problems in important domains in adolescents' lives, allowing benefits beyond health and health-related quality of life to be included in economic evaluations of youth mental health interventions. Future studies of the ASC T-ASI should consider the comprehensiveness of its domains and sensitivity to change.
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Affiliation(s)
- Vivian Reckers-Droog
- Erasmus Centre for Health Economics Rotterdam (EsCHER), Rotterdam, the Netherlands
- Erasmus University Rotterdam, Erasmus School of Health Policy & Management, Rotterdam, the Netherlands
| | - Maartje Goorden
- Erasmus Centre for Health Economics Rotterdam (EsCHER), Rotterdam, the Netherlands
| | - Yifrah Kaminer
- University of Connecticut School of Medicine, Alcohol Research Center and Injury Prevention Center, Farmington, United States of America
| | - Lieke van Domburgh
- VU University Medical Center, Department of Child and Adolescent Psychiatry, Amsterdam, the Netherlands
- Pluryn, Nijmegen, the Netherlands
| | - Werner Brouwer
- Erasmus Centre for Health Economics Rotterdam (EsCHER), Rotterdam, the Netherlands
- Erasmus University Rotterdam, Erasmus School of Health Policy & Management, Rotterdam, the Netherlands
- Erasmus University Rotterdam, Erasmus School of Economics, Rotterdam, the Netherlands
| | - Leona Hakkaart-van Roijen
- Erasmus Centre for Health Economics Rotterdam (EsCHER), Rotterdam, the Netherlands
- Erasmus University Rotterdam, Erasmus School of Health Policy & Management, Rotterdam, the Netherlands
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Comans TA, Nguyen KH, Ratcliffe J, Rowen D, Mulhern B. Valuing the AD-5D Dementia Utility Instrument: An Estimation of a General Population Tariff. PHARMACOECONOMICS 2020; 38:871-881. [PMID: 32314315 DOI: 10.1007/s40273-020-00913-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
OBJECTIVE This paper reports on the valuation of quality-of-life states in the Alzheimer's Disease Five Dimensions (AD-5D) instrument in a representative sample of the general population in Australia using the discrete-choice experiment with duration (DCETTO) elicitation technique. METHOD A DCE with 200 choice sets of two quality-of-life (QoL) state-duration combinations blocked into 20 survey versions, with ten choice sets in each version, was designed and administered online to a sample representative of the Australian population. Two additional choice sets comprising internal consistency and dominance checks were included in each survey version. A range of model specifications investigating preferences with respect to duration and interactions between AD-5D dimension levels were estimated. Utility weights were developed, with estimated coefficients transformed to the 0 (being dead) to 1 (full health) scale, suitable for the calculation of quality-adjusted life-year (QALY) weights for use in economic evaluation. RESULTS In total, 1999 respondents completed the choice experiment. Overall, respondents were slightly better educated and had higher annual incomes than the Australian general population. The estimation results from different specifications and models were broadly consistent with the monotonic nature of the AD-5D: utility increased with increased life expectancy and decreased as the severity level for each dimension worsened. A utility value set was generated for the calculation of utilities for all QoL states defined by the AD-5D descriptive system. CONCLUSION The DCE-based utility value set is now available to use to generate QALYs for the economic evaluation of treatments and interventions targeting people with dementia and/or their family caregivers.
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Affiliation(s)
- Tracy A Comans
- The Centre for Health Services Research, University of Queensland, St. Lucia, Brisbane, QLD, Australia.
- NHMRC Partnership Centre on Dealing with Cognitive and Related Functional Decline in Older People, Sydney, NSW, Australia.
| | - Kim-Huong Nguyen
- The Centre for Health Services Research, University of Queensland, St. Lucia, Brisbane, QLD, Australia
- NHMRC Partnership Centre on Dealing with Cognitive and Related Functional Decline in Older People, Sydney, NSW, Australia
| | - Julie Ratcliffe
- Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, SA, Australia
| | - Donna Rowen
- Health Economics and Decision Science, School of Health and Related Research, University of Sheffield, Sheffield, UK
| | - Brendan Mulhern
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Sydney, NSW, Australia
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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: 80] [Impact Index Per Article: 20.0] [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.
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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
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Bégo-Le Bagousse G, Jia X, Wolowacz S, Eckert L, Tavi J, Hudson R. Health utility estimation in children and adolescents: a review of health technology assessments. Curr Med Res Opin 2020; 36:1209-1224. [PMID: 32345060 DOI: 10.1080/03007995.2020.1762553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Objective: Health utility estimates for children and adolescents are critical for cost-utility analyses informing health technology assessment (HTA) authorities' decisions governing access to pediatric treatments. However, in a recent review, only 29% of published pediatric cost-utility models used a utility measure validated for children. We examined utility estimates used in pediatric HTAs.Methods: A targeted review of pediatric HTAs was performed, focusing on agencies reporting utility estimate sources and methods.Results: Searches identified 11 HTAs in pediatric indications and five in mixed populations with separate analyses for adults and children. Among 13 appraisals reporting methodological detail, five used pediatric utility estimates (based on the Health Utilities Index [HUI], n = 3; Atopic Dermatitis Quality of Life [ADQoL], n = 1; or mapping, n = 1). Issues were identified with mapping, use of adult data for some health states, and assumptions about ADQoL responses. In the remaining eight appraisals, adult utility estimates were applied. Caregiver utility was included in two of 16 appraisals.Conclusions: Only 38% of pediatric HTAs reviewed used pediatric utility estimates, and HTA authorities raised concerns about these data in many cases; only 12% of HTAs included caregiver utility. Although several preference-based utility measures are available for pediatric populations, limited data and guidance on selection of measures are available. When estimating pediatric utility weights, alternative measures should be reviewed for suitability given the model population and health condition. Pediatric and adult utility estimates should be applied appropriately as patients age over time, and caregiver and/or family member utility should be included, where relevant. Gaps exist in utility measures for children aged <4 years and caregivers.
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Affiliation(s)
| | - Xiaoying Jia
- Health Economics, RTI Health Solutions, Manchester, UK
| | | | - Laurent Eckert
- Health Economics and Value Assessment, Sanofi, Chilly-Mazarin, France
| | - Jules Tavi
- Health Economics, Ivi-Data Life Sciences, Levallois-Perret, France
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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: 81] [Impact Index Per Article: 20.3] [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.
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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
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de Bekker-Grob EW, Donkers B, Bliemer MCJ, Veldwijk J, Swait JD. Can healthcare choice be predicted using stated preference data? Soc Sci Med 2019; 246:112736. [PMID: 31887626 DOI: 10.1016/j.socscimed.2019.112736] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 11/08/2019] [Accepted: 12/13/2019] [Indexed: 12/31/2022]
Abstract
Lack of evidence about the external validity of Discrete Choice Experiments (DCEs)-sourced preferences inhibits greater use of DCEs in healthcare decision-making. This study examines the external validity of such preferences, unravels its determinants, and provides evidence of whether healthcare choice is predictable. We focused on influenza vaccination and used a six-step approach: i) literature study, ii) expert interviews, iii) focus groups, iv) survey including a DCE, v) field data, and vi) in-depth interviews with respondents who showed discordance between stated choices and actual healthcare utilization. Respondents without missing values in the survey and the actual healthcare utilization (377/499 = 76%) were included in the analyses. Random-utility-maximization and random-regret-minimization models were used to analyze the DCE data, whereas the in-depth interviews combined five scientific theories to explain discordance. When models took into account both scale and preference heterogeneity, real-world choices to opt for influenza vaccination were correctly predicted by DCE at an aggregate level, and 91% of choices were correctly predicted at an individual level. There was 13% (49/377) discordance between stated choices and actual healthcare utilization. In-depth interviews showed that several dimensions played a role in clarifying this discordance: attitude, social support, action of planning, barriers, and intention. Evidence was found that our DCE yields accurate actual healthcare choice predictions if at least scale and preference heterogeneity are taken into account. Analysis of discordant subjects showed that we can even do better. The DCE measures an important part of preferences by focusing on attribute tradeoffs that people make in their decision to participate in a healthcare intervention. Inhibitors may be among these attributes, but it is more likely that inhibitors have to do with exogenous factors like goals, religion, and social norms. Con-ducting upfront work on constraints/inhibitors of the focal behavior, not just what promotes the behavior, might further improve predictive ability.
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Affiliation(s)
- E W de Bekker-Grob
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, the Netherlands; Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Rotterdam, the Netherlands.
| | - B Donkers
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, the Netherlands; Erasmus School of Economics, Erasmus University Rotterdam, Rotterdam, the Netherlands
| | - M C J Bliemer
- Business School, University of Sydney, Sydney, Australia
| | - J Veldwijk
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, the Netherlands; Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Rotterdam, the Netherlands
| | - J D Swait
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, the Netherlands; Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Rotterdam, the Netherlands
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de Bekker-Grob EW, Swait JD, Kassahun HT, Bliemer MCJ, Jonker MF, Veldwijk J, Cong K, Rose JM, Donkers B. Are Healthcare Choices Predictable? The Impact of Discrete Choice Experiment Designs and Models. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2019; 22:1050-1062. [PMID: 31511182 DOI: 10.1016/j.jval.2019.04.1924] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 04/15/2019] [Accepted: 04/17/2019] [Indexed: 05/19/2023]
Abstract
BACKGROUND Lack of evidence about the external validity of discrete choice experiments (DCEs) is one of the barriers that inhibit greater use of DCEs in healthcare decision making. OBJECTIVES To determine whether the number of alternatives in a DCE choice task should reflect the actual decision context, and how complex the choice model needs to be to be able to predict real-world healthcare choices. METHODS Six DCEs were used, which varied in (1) medical condition (involving choices for influenza vaccination or colorectal cancer screening) and (2) the number of alternatives per choice task. For each medical condition, 1200 respondents were randomized to one of the DCE formats. The data were analyzed in a systematic way using random-utility-maximization choice processes. RESULTS Irrespective of the number of alternatives per choice task, the choice for influenza vaccination and colorectal cancer screening was correctly predicted by DCE at an aggregate level, if scale and preference heterogeneity were taken into account. At an individual level, 3 alternatives per choice task and the use of a heteroskedastic error component model plus observed preference heterogeneity seemed to be most promising (correctly predicting >93% of choices). CONCLUSIONS Our study shows that DCEs are able to predict choices-mimicking real-world decisions-if at least scale and preference heterogeneity are taken into account. Patient characteristics (eg, numeracy, decision-making style, and general attitude for and experience with the health intervention) seem to play a crucial role. Further research is needed to determine whether this result remains in other contexts.
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Affiliation(s)
- Esther W de Bekker-Grob
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, The Netherlands; Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Rotterdam, The Netherlands.
| | - Joffre D Swait
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, The Netherlands; Erasmus School of Health Policy & Management, 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
| | - Jorien Veldwijk
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, The Netherlands; Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Karen Cong
- Australian Rivers Institute, Griffith University, Brisbane, Queensland, Australia
| | - John M Rose
- Business School, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Bas Donkers
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, The Netherlands; Department of Business Economics, Erasmus School of Economics, Erasmus University Rotterdam, Rotterdam, The Netherlands
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Rogers HJ, Vermaire JH, Gilchrist F, Schuller AA. The Relationship between Caries-Specific Quality of Life and Generic Wellbeing in a Dutch Pediatric Population. Dent J (Basel) 2019; 7:dj7030067. [PMID: 31266138 PMCID: PMC6784473 DOI: 10.3390/dj7030067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 05/18/2019] [Accepted: 06/05/2019] [Indexed: 11/16/2022] Open
Abstract
Dental caries has significant negative impacts on the lives of children and young people. Whilst the impacts on children’s oral health-related quality of life (OHRQoL) have been increasingly investigated, the effect on children’s overall wellbeing remains largely unknown. Data were obtained from a survey conducted across four cities in the Netherlands. Children and their parents completed a series of questionnaires, which included Dutch versions of a caries-specific pediatric measure of OHRQoL (CARIES-QC-NL) and a generic pediatric health utility measure (CHU9D-NL). The participating children underwent dental examinations to determine their caries status. A total of 486 11-year-old children participated in the study, of which 184 had caries experience (38%). The mean number of decayed, missing and filled teeth (DMFT) was 0.71. The CARIES-QC-NL was found to have statistically significant correlations with the DMFT and CHU9D-NL. There were no statistically significant correlations between the CHU9D and the clinical variables. The CARIES-QC-NL had acceptable internal consistency and construct validity in this population despite the low prevalence of active caries. A relationship was demonstrated between OHRQoL and generic wellbeing in this population. Despite this, the CHU9D did not show any correlation with the clinical data, which may limit its application in studies of the impact of dental caries.
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Affiliation(s)
- Helen J Rogers
- School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK.
| | - Jan H Vermaire
- TNO Child Health, Schipholweg 77-89, 2316 ZL Leiden, The Netherlands
- UMCG, Centre for Dentistry and Dental Hygiene, P.O. Box 30001 9700 RB Groningen, The Netherlands
| | - Fiona Gilchrist
- School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK
| | - Annemarie A Schuller
- TNO Child Health, Schipholweg 77-89, 2316 ZL Leiden, The Netherlands
- UMCG, Centre for Dentistry and Dental Hygiene, P.O. Box 30001 9700 RB Groningen, The Netherlands
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Powell PA, Carlton J, Rowen D, Brazier JE. Producing a preference-based quality of life measure for people with Duchenne muscular dystrophy: a mixed-methods study protocol. BMJ Open 2019; 9:e023685. [PMID: 30852532 PMCID: PMC6429747 DOI: 10.1136/bmjopen-2018-023685] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 12/06/2018] [Accepted: 01/28/2019] [Indexed: 01/14/2023] Open
Abstract
INTRODUCTION Preference-based measures (PBMs) of health-related quality of life (HRQoL) are used to generate quality-adjusted life years, which are necessary for cost-effectiveness evaluations of health interventions via cost-utility analysis. These measures of health can be generic (ie, pandiagnostic) or condition specific. No condition-specific PBM of HRQoL in Duchenne muscular dystrophy (DMD) exists, yet there are concerns that standard generic measures lack the specificity to assess aspects of HRQoL that are especially important to people with DMD. This study has been designed to produce a condition-specific PBM of HRQoL in DMD. METHODS AND ANALYSIS This mixed-methods study proceeds through three stages. In the first stage (concept elicitation), semistructured interviews will be conducted with boys and men diagnosed with DMD, and analysed with framework to produce a draft health state descriptive system for HRQoL in DMD. In the second stage (refining the descriptive system), patients, clinicians and primary caregivers of people with DMD will assess the face validity of the descriptive system. This will be followed by a quantitative survey on a larger sample of patients, which will be analysed with psychometric analyses to produce a refined descriptive system. In the third stage (valuation and econometric modelling), an online discrete choice experiment with duration will be administered to a general public sample to generate utility values for the new measure. ETHICS AND DISSEMINATION This study has received ethical approval from the National Health Service (REC reference: 18/SW/0055). The primary output of this research will be a condition-specific PBM (or 'bolt-on' to an existing generic PBM) in people with DMD and an associated value set. Results will be disseminated through international conferences and open-access journals.
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Affiliation(s)
- Philip A Powell
- School of Health and Related Research, University of Sheffield, Sheffield, UK
- Economics, University of Sheffield, Sheffield, UK
| | - Jill Carlton
- School of Health and Related Research, University of Sheffield, Sheffield, UK
| | - Donna Rowen
- School of Health and Related Research, University of Sheffield, Sheffield, UK
| | - John E Brazier
- School of Health and Related Research, University of Sheffield, Sheffield, UK
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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.
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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
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