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Downs J, Norman R, Mulhern B, Jacoby P, Reddihough D, Choong CS, Finlay-Jones A, Blackmore AM. Psychometric Properties of the EQ-5D-Y-5L for Children With Intellectual Disability. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2024; 27:776-783. [PMID: 38467188 DOI: 10.1016/j.jval.2024.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/25/2024] [Accepted: 02/28/2024] [Indexed: 03/13/2024]
Abstract
OBJECTIVES The EQ-5D-Y-5L is a generic preference-based measure of health-related quality of life for children. This study aimed to describe the distributional properties, test-retest reliability, and convergent validity of the EQ-5D-Y-5L in children with intellectual disability (ID). METHODS Caregivers of children with ID (aged 4 to 18 years) completed an online survey, including a proxy-report EQ-5D-Y-5L, the Quality-of-life Inventory-Disability, and disability-appropriate measures corresponding to the EQ-5D dimensions: mobility, self-care (SC), usual activities (UA), pain/discomfort (PD), and worry/sadness/unhappiness. Twenty-one participants repeated the EQ-5D-Y-5L a few weeks later. Test-retest reliability was computed using weighted kappa and intraclass correlation coefficients, and convergent validity using Spearman's and Pearson's correlation coefficients. RESULTS Caregivers of 234 children completed the survey, with <1% missing values. Only 1.7% reported "no problems" on all dimensions (11111). The dimensions with the lowest percentage of "no problems" were SC and UA (both 8%). Test-retest reliability coefficients were fair to substantial for 4 dimensions (weighted kappa .30 to .79) but low for PD and overall health, as measured by the visual analog scale (EQ-VAS). Convergent validity was strong (Spearman's correlation .65 to .87) for mobility, SC, and PD; moderate to strong for worry/sadness/unhappiness (.47 to .60) and the EQ-VAS (Pearson's correlation .49); and weak to moderate for UA (.21 to .52). CONCLUSIONS Convergent validity was generally good; test-retest reliability varied. Children with ID had lower scores on SC and UA than other populations, and their EQ-VAS could fluctuate greatly, indicating poorer and less stable health-related quality of life.
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Affiliation(s)
- Jenny Downs
- Telethon Kids Institute, Centre for Child Health Research, The University of Western Australia, Nedlands, WA, Australia; School of Allied Health, Curtin University, Bentley, WA, Australia
| | - Richard Norman
- Population Health, Curtin University, Bentley, WA, Australia
| | - Brendan Mulhern
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Ultimo, NSW, Australia
| | - Peter Jacoby
- Telethon Kids Institute, Centre for Child Health Research, The University of Western Australia, Nedlands, WA, Australia
| | - Dinah Reddihough
- Murdoch Children's Research Institute, Parkville, Vic, Australia; Department of Paediatrics, University of Melbourne, Vic, Australia; Royal Children's Hospital, Melbourne, Vic, Australia
| | - Catherine S Choong
- Perth Children's Hospital, Nedlands, WA, Australia; School of Medicine, The University of Western Australia, Nedlands, WA, Australia
| | - Amy Finlay-Jones
- Telethon Kids Institute, Centre for Child Health Research, The University of Western Australia, Nedlands, WA, Australia; Population Health, Curtin University, Bentley, WA, Australia
| | - A Marie Blackmore
- Telethon Kids Institute, Centre for Child Health Research, The University of Western Australia, Nedlands, WA, Australia.
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Blackmore AM, Mulhern B, Norman R, Reddihough D, Choong CS, Jacoby P, Downs J. How Well Does the EQ-5D-Y-5L Describe Children With Intellectual Disability?: "There's a Lot More to My Child Than That She Can't Wash or Dress Herself.". VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2024; 27:190-198. [PMID: 38043713 DOI: 10.1016/j.jval.2023.11.005] [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: 05/08/2023] [Revised: 10/25/2023] [Accepted: 11/23/2023] [Indexed: 12/05/2023]
Abstract
OBJECTIVES The EQ-5D-5L is a generic health utility instrument for measuring health-related quality of life (HRQoL), with self-report and proxy report versions for children (EQ-5D-Y-5L). Children with intellectual disability (ID) are a heterogeneous population whose impairments and comorbidities place them at risk of poor HRQoL. This study aimed to describe the content validity and suitability for children with ID of a proxy report version of the EQ-5D-Y-5L as seen by their caregivers. METHODS A proxy report EQ-5D-Y-5L was administered to caregivers of children with ID. Using cognitive think-aloud interviewing, participants were encouraged to provide the reasoning for their choices, assess the questions' relevance, comprehensibility, and comprehensiveness, and comment on the tool's strengths and weaknesses. Qualitative content analysis used both directed (deductive) and conventional (inductive) methods. RESULTS There were 28 interviews with 30 caregivers of children with ID (aged 8-22 years, 17 boys, with autism spectrum disorder, cerebral palsy, Down syndrome, and rare genetic disorders). The EQ-5D-Y-5L was considered clear, concise, and largely relevant, but insufficiently comprehensive for this population. Interviewees sought clarification of the definition of HRQoL, whether it included unchanging impairments (vs fluctuating health states), and what basis of comparison to use (child or peer). Many interviewees suggested inclusion of questions for other domains, including communication and social engagement, equipment and human supports required, and a wider range of mental health questions. CONCLUSIONS The study suggests that further work is required to ensure accurate responses to the EQ-5D-Y-5L from caregivers of children with ID and to describe these children adequately.
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Affiliation(s)
| | - Brendan Mulhern
- Centre for Health Economics Research and Evaluation, University of Technology Sydney, Ultimo, NSW, Australia
| | - Richard Norman
- Population Health, Curtin University, Bentley, WA, Australia
| | - Dinah Reddihough
- Murdoch Children's Research Institute, Parkville, VIC, Australia
| | | | - Peter Jacoby
- Child Disability, Telethon Kids Institute, Nedlands, WA, Australia
| | - Jenny Downs
- Child Disability, Telethon Kids Institute, Nedlands, WA, Australia
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Guertin JR, Gilbert-Ouimet M, Dugas M, Carnovale V, Jalbert L, Svyntozelska O, Demers J, Matteau L, Bergeron F, LeBlanc A. Methods used to account for caregivers' sex and gender within studies examining the financial burden of caregivers of children and adolescents : Results from a scoping review. CLINICOECONOMICS AND OUTCOMES RESEARCH 2024; 16:35-53. [PMID: 38298908 PMCID: PMC10829241 DOI: 10.2147/ceor.s443077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 01/11/2024] [Indexed: 02/02/2024] Open
Abstract
Background Interest in the financial burden of informal caregivers has been growing. Unfortunately, it remains unclear which method(s) should be used when quantifying this burden. Purpose We conducted a scoping review aimed at identifying which methods have been used to conduct such work and quantified their performance. We were also interested in examining how sex and gender considerations were considered within selected studies. Data Sources Using a standardized approach, we identified studies published between 2012 and 2022 that aimed to document the financial burden of caregivers to child and adolescent patients. Our search strategy was applied to the MEDLINE, Embase, CINHAL, and Academic Search Premier databases. Study Selection Manuscript selection was performed by pairs of reviewers. Data Extraction Data extraction was performed by one reviewer with a second reviewer performing quality control. Results were reported using a narrative approach. Data Synthesis We identified 9801 unique citations, of which 200 were included in our review. Selected studies covered various disease area (eg, infection/parasitic diseases [n = 31, 16%]) and included quantitative (n = 180, 90%), qualitative (n = 4, 2%) and mixed study designs (n = 16, 8%). Most studies (n = 182, 91%) used questionnaires/surveys, either alone or in combination with other methods, to assess caregivers' financial burden. Less than half (n = 93, 47%) of studies reported on caregivers' sex and none reported on their gender. Conclusion We conducted an unrestricted review of published studies examining caregiver's financial burden which allowed us to identify general methodological trends observed in this literature. We believe this work may help improve future studies focusing on this important issue.
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Affiliation(s)
- Jason Robert Guertin
- Centre de recherche du Centre de recherche du CHU de Québec-Université Laval, Quebec City, Quebec, Canada
- Faculty of Medicine, Université Laval, Quebec City, Quebec, Canada
- Centre de recherche en organogénèse expérimentale de l’Université Laval/LOEX, Quebec City, Quebec, Canada
| | - Mahée Gilbert-Ouimet
- Centre de recherche du Centre de recherche du CHU de Québec-Université Laval, Quebec City, Quebec, Canada
- Department of Health Sciences, Université du Québec À Rimouski, Levis, Quebec, Canada
| | - Michèle Dugas
- VITAM Research Center on Sustainable Health, Quebec Integrated University Health and Social Services Center, Quebec City, Quebec, Canada
| | - Valérie Carnovale
- VITAM Research Center on Sustainable Health, Quebec Integrated University Health and Social Services Center, Quebec City, Quebec, Canada
| | - Laura Jalbert
- VITAM Research Center on Sustainable Health, Quebec Integrated University Health and Social Services Center, Quebec City, Quebec, Canada
| | - Olha Svyntozelska
- Faculty of Medicine, Université Laval, Quebec City, Quebec, Canada
- VITAM Research Center on Sustainable Health, Quebec Integrated University Health and Social Services Center, Quebec City, Quebec, Canada
| | - Juliette Demers
- VITAM Research Center on Sustainable Health, Quebec Integrated University Health and Social Services Center, Quebec City, Quebec, Canada
| | - Léonie Matteau
- Faculty of Medicine, Université Laval, Quebec City, Quebec, Canada
- Department of Health Sciences, Université du Québec À Rimouski, Levis, Quebec, Canada
| | - Frédéric Bergeron
- Bibliothèque-Direction des services-conseils, Université Laval, Quebec City, Quebec, Canada
| | - Annie LeBlanc
- Faculty of Medicine, Université Laval, Quebec City, Quebec, Canada
- VITAM Research Center on Sustainable Health, Quebec Integrated University Health and Social Services Center, Quebec City, Quebec, Canada
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Marshall DA, Gerber B, Lorenzetti DL, MacDonald KV, Bohach RJ, Currie GR. Are We Capturing the Socioeconomic Burden of Rare Genetic Disease? A Scoping Review of Economic Evaluations and Cost-of-Illness Studies. PHARMACOECONOMICS 2023; 41:1563-1588. [PMID: 37594668 DOI: 10.1007/s40273-023-01308-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/23/2023] [Indexed: 08/19/2023]
Abstract
BACKGROUND AND OBJECTIVES Rare diseases have a significant impact on patients, families, the health system, and society. Measuring the socioeconomic burden is crucial to valuing interventions for rare diseases. Healthcare system costs are significant, but so are costs to other government sectors, patients, families, and society. To understand the breadth of costs captured in rare disease studies, we examined the cost categories and elements of socioeconomic burden captured in published studies. METHODS A scoping review was conducted using five electronic databases to identify English language economic evaluations and cost-of-illness studies of interventions for rare diseases (2011-21). We mapped costs using a previously developed evidence-informed framework of socioeconomic burden costs for rare disease. RESULTS Of 4890 studies identified, 48 economic evaluations and 22 cost-of-illness studies were included. While 18/22 cost-of-illness studies utilized a societal perspective, only 7/48 economic evaluations incorporated societal costs. Most reported cost categories related to medical costs, with medication and hospitalizations being the most common elements for both study designs. Costs borne by patients, families, and society were reported less among economic evaluations than cost-of-illness studies. These included: productivity (10% vs 77%), travel/accommodation (6% vs 68%), government benefits (4% vs 18%), and family impacts (0% vs 50%). CONCLUSIONS Contrary to cost-of-illness analyses, most of the included economic evaluations did not account for the hidden burden of rare diseases, that is, costs borne by patients, families, and societies. Including these types of costs in future studies would provide a more comprehensive picture of the burden of disease, providing empirical data to inform how we value and make decisions regarding rare disease interventions, health policy, and resource allocation.
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Affiliation(s)
- Deborah A Marshall
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
- McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB, Canada
- O'Brien Institute for Public Health, University of Calgary, Calgary, AB, Canada
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
| | - Brittany Gerber
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
| | - Diane L Lorenzetti
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
- O'Brien Institute for Public Health, University of Calgary, Calgary, AB, Canada
- Health Sciences Library, University of Calgary, Calgary, AB, Canada
| | - Karen V MacDonald
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
| | - Riley Jewel Bohach
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
| | - Gillian R Currie
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada.
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.
- Department of Pediatrics, University of Calgary, Room 3C56, Health Research Innovation Centre, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada.
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Dos Santos TR, Carlucci NSS, de Avó LRDS, Barbato IT, Pinto LLDC, Pilotto RF, Germano CMR, Melo DG. Quality of life of Brazilian families who have children with Fragile X syndrome: a descriptive study. J Community Genet 2023; 14:407-418. [PMID: 37594660 PMCID: PMC10444934 DOI: 10.1007/s12687-023-00660-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 07/24/2023] [Indexed: 08/19/2023] Open
Abstract
This study aimed to assess the Family Quality of Life (FQoL) of Brazilian families with male children with Fragile X syndrome (FXS). Data from 53 families were collected using forms that included sociodemographic and clinical information, as well as the Beach Center Family Quality of Life Scale, a 5-point Likert scale ranging from "very dissatisfied" (1) to "very satisfied" (5). The mean overall FQoL score was 3.56 ± 0.79; the emotional well-being domain had the lowest score (2.98 ± 1.11) and showed significant differences between the other domains: family interaction (3.81 ± 0.89; p < 0.001), parenting (3.66 ± 0.89; p < 0.001), physical and material well-being (3.48 ± 0.83; p < 0.001), and disability-related support (3.75 ± 0.98; p < 0.001). Physical and material well-being was the second-lowest domain and was statistically different from the family interaction domain (p = 0.013). Lower FQoL satisfaction ratings were found in families with children who had difficulty getting along with people of the same age (t(51) = -3.193, p = 0.002; d = 1.019) and difficulty in living together on a day-to-day basis (t(51) = -3.060, p = 0.004; d = 0.888). These results highlight the importance of proper emotional support for the family, emphasizing the need to provide assistance not only for individuals with FXS but also for other family members. Besides, we advocate for the adoption of public policies that provide financial assistance to families and the implementation of the Brazilian Policy of Comprehensive Care for People with Rare Diseases.
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Affiliation(s)
- Thamires Rosa Dos Santos
- Departamento de Medicina, Universidade Federal de São Carlos (UFSCar), São Carlos, São Paulo, Brasil
| | | | - Lucimar Retto da Silva de Avó
- Departamento de Medicina, Universidade Federal de São Carlos (UFSCar), São Carlos, São Paulo, Brasil
- Instituto Nacional de Genética Médica Populacional, INAGEMP, Porto Alegre, Rio Grande do Sul, Brasil
| | - Ingrid Tremel Barbato
- Laboratório Neurogene, Florianópolis, Santa Catarina, Brasil
- Associação Catarinense da Síndrome do X Frágil, Florianópolis, Santa Catarina, Brasil
| | - Louise Lapagesse de Camargo Pinto
- Serviço de Referência em Doenças Raras do Hospital Infantil Joana de Gusmão, Florianópolis, Santa Catarina, Brasil
- Curso de Medicina, Universidade do Sul de Santa Catarina (UNISUL), Campus Tubarão, Tubarão, Santa Catarina, Brasil
| | - Rui Fernando Pilotto
- Departamento de Genética, Universidade Federal do Paraná (UFPR), Curitiba, Paraná, Brasil
| | - Carla Maria Ramos Germano
- Departamento de Medicina, Universidade Federal de São Carlos (UFSCar), São Carlos, São Paulo, Brasil
- Instituto Nacional de Genética Médica Populacional, INAGEMP, Porto Alegre, Rio Grande do Sul, Brasil
| | - Débora Gusmão Melo
- Departamento de Medicina, Universidade Federal de São Carlos (UFSCar), São Carlos, São Paulo, Brasil.
- Instituto Nacional de Genética Médica Populacional, INAGEMP, Porto Alegre, Rio Grande do Sul, Brasil.
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Song J, Dembo RS, Smith DaWalt L, Ryff CD, Mailick MR. Improving Retention of Diverse Samples in Longitudinal Research on Developmental Disabilities. AMERICAN JOURNAL ON INTELLECTUAL AND DEVELOPMENTAL DISABILITIES 2023; 128:164-175. [PMID: 36807478 PMCID: PMC10008512 DOI: 10.1352/1944-7558-128.2.164] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 07/05/2022] [Indexed: 06/18/2023]
Abstract
Developmental disabilities (DD) research has depended on volunteer and clinical samples, with limited racial/ethnic diversity. This study focused on improving diversity and retention in DD research. The sample included 225 parents with a child with DD and 4,002 parents without children with DD from diverse racial/ethnic groups, drawn from Midlife in the United States, a national longitudinal study. Unexpectedly, parents of children with DD from diverse racial/ethnic groups were more likely to participate longitudinally than other groups. Relative participant payment was a factor that enhanced their likelihood of retention. This research illustrates how large national studies can be leveraged to increase representativeness and ongoing participation of diverse racial/ethnic groups, especially in combination with other factors, such as parenting a child with DD.
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Affiliation(s)
- Jieun Song
- Jieun Song, Robert S. Dembo, Leann Smith DaWalt, Carol D. Ryff, and Marsha R. Mailick, University of Wisconsin-Madison. Marsha R. Mailick, PhD, made an equal contribution
| | - Robert S Dembo
- Jieun Song, Robert S. Dembo, Leann Smith DaWalt, Carol D. Ryff, and Marsha R. Mailick, University of Wisconsin-Madison. Marsha R. Mailick, PhD, made an equal contribution
| | - Leann Smith DaWalt
- Jieun Song, Robert S. Dembo, Leann Smith DaWalt, Carol D. Ryff, and Marsha R. Mailick, University of Wisconsin-Madison. Marsha R. Mailick, PhD, made an equal contribution
| | - Carol D Ryff
- Jieun Song, Robert S. Dembo, Leann Smith DaWalt, Carol D. Ryff, and Marsha R. Mailick, University of Wisconsin-Madison. Marsha R. Mailick, PhD, made an equal contribution
| | - Marsha R Mailick
- Jieun Song, Robert S. Dembo, Leann Smith DaWalt, Carol D. Ryff, and Marsha R. Mailick, University of Wisconsin-Madison. Marsha R. Mailick, PhD, made an equal contribution
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Research Gaps in Fragile X Syndrome: An Updated Literature Review to Inform Clinical and Public Health Practice. J Dev Behav Pediatr 2023; 44:e56-e65. [PMID: 36219479 PMCID: PMC9770151 DOI: 10.1097/dbp.0000000000001134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 08/03/2022] [Indexed: 02/04/2023]
Abstract
OBJECTIVE The phenotypic impact of fragile X syndrome (FXS) has been well-documented since the discovery of the fragile X messenger ribonucleoprotein 1 gene 30 years ago. However, gaps remain in clinical and public health research. The purpose of this literature review was to determine the extent to which these gaps have been addressed and identify targeted areas of future research. METHODS We conducted an electronic search of several scientific databases using a variety of key words. The search focused on 5 areas identified as research gaps by an earlier review: (1) diagnosis, (2) phenotypic presentation, (3) familial impact, (4) interventions and treatments, and (5) life span perspectives. Inclusion criteria included publication between 2014 and 2020, focus on human subjects, and publication in English. A total of 480 articles were identified, 365 were reviewed, and 112 are summarized in this review. RESULTS Results are organized into the following categories: (1) FXS phenotype and subtypes (FXS subtypes, medical profile, cognitive/developmental profile, social and behavioral profile); (2) needs of adults; (3) public health needs (clinical diagnosis and newborn screening, health care needs, and access); (4) treatment (treatment priorities, pharmacological treatments, and behavioral and educational interventions); and (5) families (economic burden and mother-child relationship). CONCLUSION Despite the progress in many areas of FXS research, work remains to address gaps in clinical and public health knowledge. We pose 3 main areas of focused research, including early detection and diagnosis, determinants of health, and development and implementation of targeted interventions.
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Gallop K, Lloyd AJ, Olt J, Marshall J. Impact of developmental and epileptic encephalopathies on caregivers: A literature review. Epilepsy Behav 2021; 124:108324. [PMID: 34607217 DOI: 10.1016/j.yebeh.2021.108324] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 11/23/2022]
Abstract
OBJECTIVES Developmental and epileptic encephalopathies (DEEs) are rare neurodevelopmental disorders characterized by early-onset seizures and numerous comorbidities. Due to the complex requirements for the care of a child with a DEE, these disorders would be expected to impact health-related quality of life (HRQL) for caregivers as well as for patients. The objective of this literature review was to describe the impact of DEEs on the HRQL, emotional wellbeing, and usual activities (social, work, relationships, etc.) of caregivers, including the wider impact on other family members such as siblings. METHODS A literature search was conducted in May 2020 using MEDLINE® and Embase® databases. Quantitative and qualitative studies were identified using search terms related to family, disease type (including >20 specific DEEs), and quality of life/methodology. Each study was assessed for relevance and was graded using customized critical appraisal criteria. Findings from studies that were given the highest quality ratings were summarized and used to develop a conceptual model to illustrate the complex impact of DEEs on caregiver HRQL. RESULTS Sixty-seven relevant studies were identified, of which 39 (27 quantitative, 12 qualitative) met the highest appraisal criteria. The studies recruited caregivers of patients with one of eight individual DEEs, or pediatric intractable or refractory epilepsy. Most studies reported negative impacts on HRQL and emotional wellbeing in caregivers. The wide-ranging impact of a DEE was highlighted by reports of negative effects on caregivers' physical health, daily activities, relationships, social activities, leisure time, work, and productivity. Factors that influenced the perceived impact included demographic characteristics (e.g., child's age, living arrangements, family income) and clinical factors (e.g., feeding or sleep difficulties, disease severity). Few studies evaluated the impact on siblings. CONCLUSIONS There is evidence that DEEs can impact HRQL and emotional wellbeing and can limit usual activities for the primary caregiver and their wider family. However, no research was identified regarding many individual DEEs, and only limited research assessed the impact on different family members with most studies focusing on mothers. Further research is required to understand the influence of certain factors such as the age of the patient, disease severity, and seizures on caregiver burden. Furthermore, the review highlighted the lack of appropriate measurement tools to assess caregiver HRQL in this population.
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Affiliation(s)
- Katy Gallop
- Acaster Lloyd Consulting Ltd, Lacon House, 84 Theobald's Road, London WC1X 8NL, United Kingdom.
| | - Andrew J Lloyd
- Acaster Lloyd Consulting Ltd, Lacon House, 84 Theobald's Road, London WC1X 8NL, United Kingdom
| | - Jennifer Olt
- Acaster Lloyd Consulting Ltd, Lacon House, 84 Theobald's Road, London WC1X 8NL, United Kingdom
| | - Jade Marshall
- GW Pharma Ltd, 1 Cavendish Place, London W1G 0QF, United Kingdom
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Zhou T, Guan H, Wang L, Zhang Y, Rui M, Ma A. Health-Related Quality of Life in Patients With Different Diseases Measured With the EQ-5D-5L: A Systematic Review. Front Public Health 2021; 9:675523. [PMID: 34268287 PMCID: PMC8275935 DOI: 10.3389/fpubh.2021.675523] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/24/2021] [Indexed: 01/04/2023] Open
Abstract
Background: The EQ-5D-5L is a generic preference-based questionnaire developed by the EuroQol Group to measure health-related quality of life (HRQoL) in 2005. Since its development, it has been increasingly applied in populations with various diseases and has been found to have good reliability and sensitivity. This study aimed to summarize the health utility elicited from EQ-5D-5L for patients with different diseases in cross-sectional studies worldwide. Methods: Web of Science, MEDLINE, EMBASE, and the Cochrane Library were searched from January 1, 2012, to October 31, 2019. Cross-sectional studies reporting utility values measured with the EQ-5D-5L in patients with any specific disease were eligible. The language was limited to English. Reference lists of the retrieved studies were manually searched to identify more studies that met the inclusion criteria. Methodological quality was assessed with the Agency for Health Research and Quality (AHRQ) checklist. In addition, meta-analyses were performed for utility values of any specific disease reported in three or more studies. Results: In total, 9,400 records were identified, and 98 studies met the inclusion criteria. In the included studies, 50 different diseases and 98,085 patients were analyzed. Thirty-five studies involving seven different diseases were included in meta-analyses. The health utility ranged from 0.31 to 0.99 for diabetes mellitus [meta-analysis random-effect model (REM): 0.83, (95% CI = 0.77–0.90); fixed-effect model (FEM): 0.93 (95% CI = 0.93–0.93)]; from 0.62 to 0.90 for neoplasms [REM: 0.75 (95% CI = 0.68–0.82); FEM: 0.80 (95% CI = 0.78–0.81)]; from 0.56 to 0.85 for cardiovascular disease [REM: 0.77 (95% CI = 0.75–0.79); FEM: 0.76 (95% CI = 0.75–0.76)]; from 0.31 to 0.78 for multiple sclerosis [REM: 0.56 (95% CI = 0.47–0.66); FEM: 0.67 (95% CI = 0.66–0.68)]; from 0.68 to 0.79 for chronic obstructive pulmonary disease [REM: 0.75 (95% CI = 0.71–0.80); FEM: 0.76 (95% CI = 0.75–0.77)] from 0.65 to 0.90 for HIV infection [REM: 0.84 (95% CI = 0.80–0.88); FEM: 0.81 (95% CI = 0.80–0.82)]; from 0.37 to 0.89 for chronic kidney disease [REM: 0.70 (95% CI = 0.48–0.92; FEM: 0.76 (95% CI = 0.74–0.78)]. Conclusions: EQ-5D-5L is one of the most widely used preference-based measures of HRQoL in patients with different diseases worldwide. The variation of utility values for the same disease was influenced by the characteristics of patients, the living environment, and the EQ-5D-5L value set. Systematic Review Registration: https://www.crd.york.ac.uk/PROSPERO/, identifier CRD42020158694.
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Affiliation(s)
- Ting Zhou
- School of International Pharmaceutical Business, China Pharmaceutical University, Nanjing, China
| | - Haijing Guan
- China Center for Health Economic Research, Peking University, Beijing, China
| | - Luying Wang
- School of International Pharmaceutical Business, China Pharmaceutical University, Nanjing, China
| | - Yao Zhang
- School of International Pharmaceutical Business, China Pharmaceutical University, Nanjing, China
| | - Mingjun Rui
- School of International Pharmaceutical Business, China Pharmaceutical University, Nanjing, China
| | - Aixia Ma
- School of International Pharmaceutical Business, China Pharmaceutical University, Nanjing, China
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Flores D, Ribate MP, Montolio M, Ramos FJ, Gómez M, García CB. Quantifying the economic impact of caregiving for Duchenne muscular dystrophy (DMD) in Spain. THE EUROPEAN JOURNAL OF HEALTH ECONOMICS : HEPAC : HEALTH ECONOMICS IN PREVENTION AND CARE 2020; 21:1015-1023. [PMID: 32399780 DOI: 10.1007/s10198-020-01197-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 04/25/2020] [Indexed: 06/11/2023]
Abstract
AIM To establish the potential economic burden in caregivers to patients with DMD and the potential causative factors. METHOD Caregivers to patients with DMD were recruited through the DMD patients Register and questioned about several economic aspects using "ad-hoc" questionnaires. RESULTS All families, apart from one (97.2% n = 36), incurred in monthly medical costs (44% of the families more than 50 euros/month). 97.2% of the households considered looking after a patient of DMD as financially burdensome, and 80.5% of households declared to have suffered work changes, especially the mothers (job timetable-related mainly). The presence of obsessive-compulsive disorders (OCD) in patients was significantly associated with caregivers' high financial burden as these were six times more likely to have this perception OR = 6468 IC 95% (1056-39,601), p = 0.043. Also, when patients had learning difficulties, caregivers had up to six times more chances to incur in monthly expenditure for formal care OR = 6089 IC 95% (1112-33,342), p = 0.037. INTERPRETATION Caregivers have relevant financial burden that might be conditioned by the clinical condition of the patient. WHAT THIS PAPER ADDS Quantitative data about financial burden in DMD Spanish families providing informal care. Identification of the patient's main clinical issues associated with financial burden.
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Affiliation(s)
- David Flores
- Facultad de Ciencias de la Salud, Grado en Farmacia, Universidad San Jorge, Campus Universitario de Villanueva de Gállego Zaragoza, Autovía A-23 Zaragoza-Huesca Km. 299. 50.830 Villanueva de Gállego, Zaragoza, Spain.
| | - María P Ribate
- Facultad de Ciencias de la Salud, Grado en Farmacia, Universidad San Jorge, Campus Universitario de Villanueva de Gállego Zaragoza, Autovía A-23 Zaragoza-Huesca Km. 299. 50.830 Villanueva de Gállego, Zaragoza, Spain
| | - Marisol Montolio
- Scientific Director and Registry Curator, Duchenne Parent Project Spain, Adjunct Professor Department of Cell Biology, Physiology and Immunology, Faculty of Biology, Barcelona University, Avenida Diagonal, 643. 1st floor, Prevosti Building, 08028, Barcelona, Spain
| | - Feliciano J Ramos
- Unidad de Genética Clínica, Servicio de Pediatría, Hospital Clínico Universitario "Lozano Blesa"-CIBERER-GCV02, Departmento de Pediatría, Facultad de Medicina, Universidad de Zaragoza, Zaragoza, Spain
| | - Manuel Gómez
- Facultad de Ciencias de la Salud, Grado en Farmacia, Universidad San Jorge, Campus Universitario de Villanueva de Gállego Zaragoza, Autovía A-23 Zaragoza-Huesca Km. 299. 50.830 Villanueva de Gállego, Zaragoza, Spain
| | - Cristina B García
- Facultad de Ciencias de la Salud, Grado en Farmacia, Universidad San Jorge, Campus Universitario de Villanueva de Gállego Zaragoza, Autovía A-23 Zaragoza-Huesca Km. 299. 50.830 Villanueva de Gállego, Zaragoza, Spain
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11
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Fitzpatrick SE, Schmitt LM, Adams R, Pedapati EV, Wink LK, Shaffer RC, Sage J, Weber JD, Dominick KC, Erickson CA. Pediatric Quality of Life Inventory (PedsQL) in Fragile X Syndrome. J Autism Dev Disord 2020; 50:1056-1063. [PMID: 31728808 DOI: 10.1007/s10803-019-04292-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To date, health related quality of life (QoL) has not been systematically evaluated in youth with fragile X syndrome (FXS), the most common single gene cause of autism and the most common inherited form of developmental disability. We describe QoL data gathered using the Pediatric Quality of Life Inventory (PedsQL) completed online by 364 parents of youth with FXS. Parents consistently reported across all gender and age groups that their children experienced the highest QoL in Physical functioning and the lowest QoL in Cognitive functioning. Overall, older children with FXS had increase QoL ratings in the domains of School and Cognitive function.
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Affiliation(s)
- Sarah E Fitzpatrick
- Division of Child and Adolescent Psychiatry, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 4002, Cincinnati, OH, 45229, USA
| | - Lauren M Schmitt
- Division of Child and Adolescent Psychiatry, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 4002, Cincinnati, OH, 45229, USA
| | - Ryan Adams
- Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Ernest V Pedapati
- Division of Child and Adolescent Psychiatry, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 4002, Cincinnati, OH, 45229, USA.,Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Logan K Wink
- Division of Child and Adolescent Psychiatry, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 4002, Cincinnati, OH, 45229, USA.,Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Rebecca C Shaffer
- Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Jessica Sage
- Division of Child and Adolescent Psychiatry, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 4002, Cincinnati, OH, 45229, USA
| | | | - Kelli C Dominick
- Division of Child and Adolescent Psychiatry, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 4002, Cincinnati, OH, 45229, USA.,Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Craig A Erickson
- Division of Child and Adolescent Psychiatry, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 4002, Cincinnati, OH, 45229, USA. .,Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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12
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Lamsal R, Finlay B, Whitehurst DGT, Zwicker JD. Generic preference-based health-related quality of life in children with neurodevelopmental disorders: a scoping review. Dev Med Child Neurol 2020; 62:169-177. [PMID: 31225644 PMCID: PMC7065222 DOI: 10.1111/dmcn.14301] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/02/2019] [Indexed: 12/11/2022]
Abstract
AIM To describe how generic preference-based health-related quality of life (HRQoL) instruments have been used in research involving children with neurodevelopmental disorders (NDD). METHOD A systematic search of nine databases identified studies that used generic preference-based HRQoL instruments in children with NDD. Data extracted following the Preferred Reporting Items for Systematic Review and Meta-Analyses extension for Scoping Review guidelines included type of NDD, instrument used, respondent type, justification, and critical appraisal for these selections. RESULTS Thirty-six studies were identified: four cost-utility analyses; 15 HRQoL assessments; five economic burden studies; three intervention studies; and nine 'other'. The Health Utilities Index (Mark 2 and Mark 3) and EuroQoL 5D (EQ-5D; three-level EQ-5D, five-level EQ-5D, and the youth version of the EQ-5D) instruments were most frequently used (44% and 31% respectively). The relatively low use of these instruments overall may be due to a lack of psychometric evidence, inconsistency in justification for and lack of clarity on appropriate respondent type and age, and geographical challenges in applying preference weights. INTERPRETATION This study highlights the dearth of studies using generic preference-based HRQoL instruments in children with NDD. The use of cost-utility analysis in this field is limited and validation of these instruments for children with NDD is needed. The quality of data should be considered before guiding policy and care decisions. WHAT THIS PAPER ADDS Limited use of generic preference-based health-related quality of life (HRQoL) instruments in studies on children with neurodevelopmental disorders. Only 11% of studies were cost-utility analyses. Inconsistencies in justification for choosing generic preference-based HRQoL instruments and respondent types.
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Affiliation(s)
- Ramesh Lamsal
- School of Public PolicyUniversity of CalgaryCalgaryAlbertaCanada
| | - Brittany Finlay
- School of Public PolicyUniversity of CalgaryCalgaryAlbertaCanada
| | - David G T Whitehurst
- Faculty of Health SciencesSimon Fraser UniversityBurnabyBritish ColumbiaCanada,Centre for Clinical Epidemiology and EvaluationVancouver Coastal Health Research InstituteVancouverBritish ColumbiaCanada
| | - Jennifer D Zwicker
- School of Public PolicyUniversity of CalgaryCalgaryAlbertaCanada,Faculty of KinesiologyUniversity of CalgaryCalgaryAlbertaCanada
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13
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Pharmacologic Interventions for Irritability, Aggression, Agitation and Self-Injurious Behavior in Fragile X Syndrome: An Initial Cross-Sectional Analysis. J Autism Dev Disord 2020; 49:4595-4602. [PMID: 31468273 DOI: 10.1007/s10803-019-04173-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Using a dataset involving 415 individuals with irritability, aggression, agitation and self-injury (IAAS) behaviors from the fragile X syndrome (FXS) FORWARD database, we describe the psychopharmacologic management of IAAS and features of the population of persons with FXS treated with drug therapy for IAAS. Among those with FXS exhibiting IAAS, individuals with FXS receiving drug treatment of IAAS were older, more predominantly male, have more significant intellectual disability, more like to have comorbid autism, hyperarousal, and social impairments. The most commonly utilized medications for IAAS in FXS are antipsychotic medications, specifically aripiprazole and risperidone (37% and 27%, respectively). The majority of subjects (63%) experienced no side effects noted from the use of their psychopharmacologic medications.
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14
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Wittenberg E, James LP, Prosser LA. Spillover Effects on Caregivers' and Family Members' Utility: A Systematic Review of the Literature. PHARMACOECONOMICS 2019; 37:475-499. [PMID: 30887469 DOI: 10.1007/s40273-019-00768-7] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
BACKGROUND A growing body of research has identified health-related quality-of-life effects for caregivers and family members of ill patients (i.e. 'spillover effects'), yet these are rarely considered in cost-effectiveness analyses (CEAs). OBJECTIVE The objective of this study was to catalog spillover-related health utilities to facilitate their consideration in CEAs. METHODS We systematically reviewed the medical and economic literatures (MEDLINE, EMBASE, and EconLit, from inception through 3 April 2018) to identify articles that reported preference-based measures of spillover effects. We used keywords for utility measures combined with caregivers, family members, and burden. RESULTS Of 3695 articles identified, 80 remained after screening: 8 (10%) reported spillover utility per se, as utility or disutility (i.e. utility loss); 25 (30%) reported a comparison group, either population values (n = 9) or matched, non-caregiver/family member or unaffected individuals' utilities (n = 16; 3 reported both spillover and a comparison group); and 50 (63%) reported caregiver/family member utilities only. Alzheimer's disease/dementia was the most commonly studied disease/condition, and the EQ-5D was the most commonly used measurement instrument. CONCLUSIONS This comprehensive catalog of utilities showcases the spectrum of diseases and conditions for which caregiver and family members' spillover effects have been measured, and the variation in measurement methods used. In general, utilities indicated a loss in quality of life associated with being a caregiver or family member of an ill relative. Most studies reported caregiver/family member utility without any comparator, limiting the ability to infer spillover effects. Nevertheless, these values provide a starting point for considering spillover effects in the context of CEA, opening the door for more comprehensive analyses.
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Affiliation(s)
- Eve Wittenberg
- Center for Health Decision Science, Harvard TH Chan School of Public Health, Boston, MA, USA.
| | - Lyndon P James
- Center for Health Decision Science, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Lisa A Prosser
- Susan B. Meister Child Health Evaluation and Research Center, University of Michigan Medical School, Ann Arbor, MI, USA
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15
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Vismara LA, McCormick CEB, Shields R, Hessl D. Extending the Parent-Delivered Early Start Denver Model to Young Children with Fragile X Syndrome. J Autism Dev Disord 2018; 49:1250-1266. [DOI: 10.1007/s10803-018-3833-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Mavoglurant in Fragile X Syndrome: Results of two open-label, extension trials in adults and adolescents. Sci Rep 2018; 8:16970. [PMID: 30451888 PMCID: PMC6242849 DOI: 10.1038/s41598-018-34978-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 10/22/2018] [Indexed: 02/06/2023] Open
Abstract
Fragile X syndrome (FXS) is the most common monogenic cause of inherited intellectual and developmental disabilities. Mavoglurant, a selective metabotropic glutamate receptor subtype-5 antagonist, has shown positive neuronal and behavioral effects in preclinical studies, but failed to demonstrate any behavioral benefits in two 12-week, randomized, placebo-controlled, double-blind, phase IIb studies in adults and adolescents with FXS. Here we report the long-term safety (primary endpoint) and efficacy (secondary endpoint) results of the open-label extensions. Adolescent (n = 119, aged 12–19 years) and adult (n = 148, aged 18–45 years) participants received up to 100 mg bid mavoglurant for up to 34 months. Both extension studies were terminated prematurely due to lack of proven efficacy in the core studies. Mavoglurant was well tolerated with no new safety signal. Five percent of adults and 16.9 percent of adolescents discontinued treatment due to adverse events. Gradual and consistent behavioral improvements as measured by the ABC-CFX scale were observed, which were numerically superior to those seen in the placebo arm of the core studies. These two extension studies confirm the long-term safety of mavoglurant in FXS, but further investigations are required to determine whether and under which conditions the significant preclinical results obtained with mGluR5 inhibition can translate to humans.
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17
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Linertová R, García-Pérez L, Gorostiza I. Cost-of-Illness in Rare Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1031:283-297. [PMID: 29214579 DOI: 10.1007/978-3-319-67144-4_17] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Cost-of-illness (COI) studies quantify the economic burden of a disease, including direct healthcare and non-healthcare costs and productivity losses. Different approaches can be adopted to evaluate the resources associated to a disease and to calculate the total costs. Prevalence-based studies estimate the total costs of a disease during a given period, while incidence-based studies measure lifetime costs from onset until death. Data can be collected from individuals, using a bottom-up approach, or from population statistics, using a top-down approach. Different perspectives are possible, but the broadest and also mostly used is the societal one. Appropriate discounting should be applied for future costs and a sensitivity analyses of main parameters should be performed. The main limitation of COI studies is that they don't account the outcomes or benefits of possible treatments.There is a lack of COI studies in the field of rare diseases. A multinational COI study (BURQOL-RD) evaluated recently the burden of 10 rare diseases in Europe, using a prevalence-based method with a bottom-up approach to quantify resources from a societal perspective, which is the mostly used methodology for COI studies in rare diseases; however, several other studies illustrate different approaches to conduct COI analysis in this field, such as incidence-based methods or narrower perspectives.COI studies are useful to inform policy-makers about the magnitude of a disease. To support correctly the decision-making process, it is necessary to identify the cost-drivers through COI studies with robust design and standardized methodology.
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Affiliation(s)
- Renata Linertová
- Fundación Canaria de Investigación Sanitaria (FUNCANIS), Santa Cruz de Tenerife, Spain. .,Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), Madrid, Spain. .,Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Santa Cruz de Tenerife, Spain.
| | - Lidia García-Pérez
- Fundación Canaria de Investigación Sanitaria (FUNCANIS), Santa Cruz de Tenerife, Spain.,Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), Madrid, Spain.,Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Santa Cruz de Tenerife, Spain
| | - Iñigo Gorostiza
- Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), Madrid, Spain.,Basurto University Hospital, Osakidetza, Spain
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18
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Chevreul K, Gandré C, Brigham KB, López-Bastida J, Linertová R, Oliva-Moreno J, Serrano-Aguilar P, Posada-de-la-Paz M, Taruscio D, Schieppati A, Iskrov G, Gulácsi L, von der Schulenburg JMG, Kanavos P, Persson U, Fattore G. Social/economic costs and health-related quality of life in patients with fragile X syndrome in Europe. THE EUROPEAN JOURNAL OF HEALTH ECONOMICS : HEPAC : HEALTH ECONOMICS IN PREVENTION AND CARE 2016; 17 Suppl 1:43-52. [PMID: 27072054 DOI: 10.1007/s10198-016-0784-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 01/13/2016] [Indexed: 05/07/2023]
Abstract
OBJECTIVE To estimate the social/economic costs of fragile X syndrome (FXS) in Europe and to assess the health-related quality of life (HRQOL) of patients and caregivers. METHODS A cross-sectional study was conducted in a sample of European countries. Patients were recruited through patients' associations. Data on their resource use and absence from the labour market were retrospectively obtained from an online questionnaire. Costs were estimated by a bottom-up approach and the EuroQol-5 Domain (EQ-5D) questionnaire was used to measure patients' and caregivers' HRQOL. RESULTS Five countries were included in the analysis. The mean annual cost of FXS per patient varied from €4951 in Hungary to €58,862 in Sweden. Direct non-healthcare costs represented the majority of costs in all countries but there were differences in the share incurred by formal and informal care among those costs. Costs were also shown to differ between children and adults. Mean EQ-5D utility score for adult patients varied from 0.52 in France (n = 42) to 0.73 in Hungary (n = 2), while for caregivers this score was consistently inferior to 0.87. CONCLUSION Our findings underline that, although its prevalence is low, FXS is costly from a societal perspective. They support the development of tailored policies to reduce the consequences of FXS on both patients and their relatives.
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Affiliation(s)
- Karine Chevreul
- URC Eco Ile de France, AP-HP, Paris, France.
- Université Paris Diderot, Sorbonne Paris Cité, ECEVE, UMRS 1123, Paris, France.
- INSERM, ECEVE, U1123, Paris, France.
| | - Coralie Gandré
- URC Eco Ile de France, AP-HP, Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, ECEVE, UMRS 1123, Paris, France
- INSERM, ECEVE, U1123, Paris, France
| | - Karen Berg Brigham
- URC Eco Ile de France, AP-HP, Paris, France
- Université Paris Est, Créteil, France
| | - Julio López-Bastida
- University of Castilla-La Mancha, Talavera De La Reina, Toledo, Spain
- Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), Madrid, Spain
| | - Renata Linertová
- Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), Madrid, Spain
- Fundación Canaria de Investigación Sanitaria (FUNCANIS), Las Palmas de Gran Canaria, Spain
| | - Juan Oliva-Moreno
- Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), Madrid, Spain
- University of Castilla-La Mancha, Toledo, Spain
| | - Pedro Serrano-Aguilar
- Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), Madrid, Spain
- Evaluation and Planning Service at Canary Islands Health Service, Santa Cruz de Tenerife, Spain
| | | | - Domenica Taruscio
- National Center for Rare Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Arrigo Schieppati
- Centro di Ricerche Cliniche per Malattie Rare Aldo e Cele Daccò, Istituto di Ricerche Farmacologiche Mario Negri, Ranica (Bergamo), Italy
| | - Georgi Iskrov
- Institute of Rare Diseases, Plovdiv, Bulgaria
- Department of Social Medicine and Public Health, Faculty of Public Health, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - László Gulácsi
- Department of Health Economics, Corvinus University of Budapest, Budapest, Hungary
| | | | - Panos Kanavos
- Department of Social Policy and LSE Health, London School of Economics and Political Science, London, UK
| | - Ulf Persson
- The Swedish Institute for Health Economics, Lund, Sweden
| | - Giovani Fattore
- Centre for Research on Health and Social Care Management (CERGAS), Bocconi University, Milan, Italy
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