1
|
Esfandiari N, Samji H, Whitehurst DGT. Impact of secondary health conditions on the quality of life and wellbeing of Canadians living with spinal cord injury: A comparison of preference-weighted index scores derived from generic standardized instruments. J Spinal Cord Med 2024:1-12. [PMID: 39225542 DOI: 10.1080/10790268.2024.2391597] [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: 09/04/2024] Open
Abstract
CONTEXT/OBJECTIVES To compare the assessment of the impact of secondary health conditions (SHCs) on the quality of life and wellbeing of Canadians living with spinal cord injury (SCI) using four preference-based outcome measures. DESIGN Secondary analysis of data from a cross-sectional, online survey. SETTING Community. PARTICIPANTS Community-dwelling adults (n = 364) living with traumatic or non-traumatic spinal cord injury at least one year post-injury (70% at least 10 years post-injury). OUTCOME MEASURES A modified version of the Spinal Cord Injury Secondary Conditions Scale (SCI-SCS); three health-related instruments (EQ-5D-5L, Health Utilities Index Mark 3 (HUI3), and the Assessment of Quality of Life 8-dimension questionnaire (AQoL-8D)) and a capability wellbeing instrument (ICEpop CAPability measure for Adults (ICECAP-A)). RESULTS Across unadjusted and controlled analyses (i.e. controlling for associations between index scores and sociodemographic and impairment characteristics), trends were observed that identified lower levels of quality of life/wellbeing with higher problem ratings for each of the SHCs. Despite the trends, there was considerable variation in mean index scores across instruments, with HUI3 scores the lowest of the health-related instruments and ICECAP-A scores the highest overall. Respiratory problems, depression/mood problems, pressure sores, and autonomic dysreflexia were associated with the lowest levels of quality of life and wellbeing. CONCLUSIONS Higher problem ratings for SHCs are negatively associated with scores derived from preference-based quality of life and wellbeing instruments. Variation in index scores across instruments - including across the health-related instruments alone - highlights the critical importance of assessing the relative merits of preference-based instruments when using (or considering using) these instruments/estimates in comparative effectiveness research and economic evaluation.
Collapse
Affiliation(s)
- Nazafarin Esfandiari
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Hasina Samji
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - David G T Whitehurst
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
- International Collaboration on Repair Discoveries (ICORD), Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| |
Collapse
|
2
|
Woods TJ, Kaambwa B. An empirical comparison of sleep-specific versus generic quality of life instruments among Australians with sleep disorders. Qual Life Res 2024; 33:2261-2274. [PMID: 38913275 PMCID: PMC11286652 DOI: 10.1007/s11136-024-03686-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2024] [Indexed: 06/25/2024]
Abstract
PURPOSE In Australian adults diagnosed with a sleep disorder(s), this cross-sectional study compares the empirical relationships between two generic QoL instruments, the EuroQoL 5-dimension 5-level (EQ-5D-5L) and ICEpop CAPability measure for Adults (ICECAP-A), and three sleep-specific metrics, the Epworth Sleepiness Scale (ESS), 10-item Functional Outcomes of Sleep Questionnaire (FOSQ-10), and Pittsburgh Sleep Quality Index (PSQI). METHODS Convergent and divergent validity between item/dimension scores was examined using Kendall's Tau-B correlation, with correlations below 0.30 considered weak, between 0.30 and 0.50 moderate and those above 0.50 strong (indicating that instruments were measuring similar constructs). Exploratory factor analysis (EFA) was conducted to identify shared underlying constructs. RESULTS A total of 1509 participants (aged 18-86 years) were included in the analysis. Convergent validity between dimensions/items of different instruments was weak to moderate. A 5-factor EFA solution, representing 'daytime dysfunction', 'fatigue', 'wellbeing', 'physical health', and 'perceived sleep quality', was simplest with close fit and fewest cross-loadings. Each instrument's dimensions/items primarily loaded onto their own factor, except for the EQ-5D-5L and PSQI. Nearly two-thirds of salient loadings were of excellent magnitude (0.72 to 0.91). CONCLUSION Moderate overlap between the constructs assessed by generic and sleep-specific instruments indicates that neither can fully capture the complexity of QoL alone in general disordered sleep populations. Therefore, both are required within economic evaluations. A combination of the EQ-5D-5L and, depending on context, ESS or PSQI offers the broadest measurement of QoL in evaluating sleep health interventions.
Collapse
Affiliation(s)
- Taylor-Jade Woods
- Health Economics Unit, College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia.
| | - Billingsley Kaambwa
- Health Economics Unit, College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
| |
Collapse
|
3
|
van der Boor CF, Taban D, Ismail K, Simon J, Roberts B, Fuhr D, Tol WA, Greco G. Measuring refugees' capabilities: translation, adaptation, and valuation of the OxCAP-MH into Juba Arabic for use among South Sudanese male refugees in Uganda. J Patient Rep Outcomes 2024; 8:40. [PMID: 38564035 PMCID: PMC10987405 DOI: 10.1186/s41687-024-00720-0] [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: 10/12/2023] [Accepted: 03/24/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Forcibly displaced populations are highly vulnerable to psychosocial distress and mental disorders, including alcohol misuse. In an ongoing trial that seeks to develop a transdiagnostic intervention addressing psychological distress and alcohol use disorders among conflict-affected populations, we will carry out a cost-effectiveness evaluation using a capability-based Oxford Capabilities Mental Health (OxCAP-MH) measure. The OxCAP-MH is a 16-item questionnaire developed from the Capability Approach, that covers multiple domains of functioning and welfare. The aim of the current paper is to present the results of the translation, cultural adaptation and valuation of the OxCAP-MH into Juba Arabic for South Sudanese refugees living in Uganda. We adhered to the official Translation and Linguistic Validation process of the OxCAP-MH. To carry out the translation, the Concept Elaboration document, official English version of the OxCAP-MH, and the Back-Translation Review Template were used. Four independent translators were used for forward and back translations. The reconciled translated version was then piloted in two focus group discussions (N = 16) in Rhino refugee settlement. A most important to least important valuation of the sixteen capability domains covered in the OxCAP-MH was also done. RESULTS The Juba Arabic version of the OxCAP-MH was finalized following a systematic iterative process. The content of the Juba Arabic version remained unchanged, but key concepts were adapted to ensure cultural acceptability, feasibility, and comprehension of the measure in the local context of Rhino refugee settlement. Most participants had low levels of literacy and required support with filling in the tool. Participants suggested an additional capability that is currently not reflected in the OxCAP-MH, namely access to food. Furthermore, discussions around the valuation exercise of the sixteen domains led to two separate importance scales, which showed relevant differences. CONCLUSIONS In this context, the OxCAP-MH was considered culturally acceptable. The valuation exercise proved cognitively demanding. Participants voiced confusion over how to answer the questions on the OxCAP-MH instrument due to low levels of literacy. These concerns invite consideration for future research to consider how measures such as the OxCAP-MH can be made more accessible to individuals with low literacy rates in resource poor settings.
Collapse
Affiliation(s)
- C F van der Boor
- Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, 15-17 Tavistock Place, London, WC1H 9SH, UK.
| | - D Taban
- HealthRight International, Plot 855, Mawanda Road -Kamwokya, Kampala, Uganda
| | - K Ismail
- HealthRight International, Plot 855, Mawanda Road -Kamwokya, Kampala, Uganda
| | - J Simon
- Department of Health Economics, Center for Public Health, Medical University of Vienna, Kinderspitalgasse 15, Vienna, 1090, Austria
- Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, OX3 7JX, UK
| | - B Roberts
- Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, 15-17 Tavistock Place, London, WC1H 9SH, UK
| | - D Fuhr
- Department of Prevention and Evaluation, Leibniz Institute for Prevention Research and Epidemiology, Achterstraße, 30D-28359, Bremen, Germany
- Health Sciences, University of Bremen, Bremen, Germany
| | - W A Tol
- Department of Public Health, University of Copenhagen, Bartholinsgade 4, bg. 9, 1356 København K, CSS, bg. 9, Building: 9.2.16, Copenhagen, Denmark
- Athena Research Institute, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - G Greco
- Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, 15-17 Tavistock Place, London, WC1H 9SH, UK
| |
Collapse
|
4
|
McCaffrey N, Ratcliffe J, Currow D, Engel L, Hutchinson C. What Aspects of Quality of Life are Important from Palliative Care Patients' Perspectives? A Framework Analysis to Inform Preference-Based Measures for Palliative and End-of-Life Settings. THE PATIENT 2024; 17:39-52. [PMID: 37975965 DOI: 10.1007/s40271-023-00651-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/09/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND AND OBJECTIVE Preference-based outcome measures are commonly applied in economic analyses to inform healthcare resource allocation decisions. Few preference-based outcome measures have been specifically developed for palliative and end-of-life settings. This study aimed to identify which quality-of-life domains are most important to Australians receiving specialised palliative care services to help determine if the development of a new condition-specific preference-based outcome measure is warranted. METHODS In-depth face-to-face interviews were conducted with 18 participants recruited from palliative care services in South Australia. Data were analysed using a framework analysis drawing on findings from a systematic review of international qualitative studies investigating the quality-of-life preferences of patients receiving palliation (domains identified included cognitive, emotional, healthcare, personal autonomy, physical, preparatory, social, spiritual). Participants identified missing or irrelevant domains in the EQ-5D and QLU-C10D questionnaires and ranked the importance of domains. RESULTS A priori domains were refined into cognitive, environmental, financial, independence, physical, psychological, social and spiritual. The confirmation of the eight important quality-of-life domains across multiple international studies suggests there is a relatively high degree of convergence on the perspectives of patients in different countries. Four domains derived from the interviews are not covered by the EQ-5D and QLU-C10D (cognitive, environmental, financial, spiritual), including one of the most important (spiritual). CONCLUSIONS Existing, popular, preference-based outcome measures such as the EQ-5D do not incorporate the most important, patient-valued, quality-of-life domains in the palliative and end-of-life settings. Development of a new, more relevant and comprehensive preference-based outcome measure could improve the allocation of resources to patient-valued services and have wide applicability internationally.
Collapse
Affiliation(s)
- Nikki McCaffrey
- Institute for Health Transformation, Deakin Health Economics, SHSD, Faculty of Health, Deakin University, Geelong, VIC, Australia.
| | - Julie Ratcliffe
- Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, SA, Australia
| | - David Currow
- Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, Australia
| | - Lidia Engel
- School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Claire Hutchinson
- Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, SA, Australia
| |
Collapse
|
5
|
Zahirian Moghadam T, Powell J, Sharghi A, Zandian H. Economic evaluation of dialysis and comprehensive conservative care for chronic kidney disease using the ICECAP-O and EQ-5D-5L; a comparison of evaluation instruments. COST EFFECTIVENESS AND RESOURCE ALLOCATION 2023; 21:81. [PMID: 37924060 PMCID: PMC10625205 DOI: 10.1186/s12962-023-00491-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/24/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND Chronic Kidney Disease (CKD) patients often require long-term care, and while Hemodialysis (HD) is the standard treatment, Comprehensive Conservative Care (CCC) is gaining popularity as an alternative. Economic evaluations comparing their cost-effectiveness are crucial. This study aims to perform a cost-utility analysis comparing HD and CCC using the EQ-5D-5L and ICECAP-O instruments to assessing healthcare interventions in CKD patients. METHODS This short-term economic evaluation involved 183 participants (105 HD, 76 CCC) and collected data on demographics, comorbidities, laboratory results, treatment costs, and HRQoL measured by ICECAP-O and EQ-5D-5L. Incremental Cost-Effectiveness Ratios (ICERs) and Net Monetary Benefit (NMB) were calculated separately for each instrument, and Probabilistic Sensitivity Analysis (PSA) assessed uncertainty. RESULTS CCC demonstrated significantly lower costs (mean difference $8,544.52) compared to HD. Both EQ-5D-5L and ICECAP-O indicated higher Quality-Adjusted Life Years (QALYs) for both groups, but the difference was not statistically significant (p > 0.05). CCC dominated HD in terms of HRQoL measures, with ICERs of -$141,742.67 (EQ-5D-5L) and -$4,272.26 (ICECAP-O). NMB was positive for CCC and negative for HD, highlighting its economic feasibility. CONCLUSION CCC proves a preferable and more cost-effective treatment option than HD for CKD patients aged 65 and above, regardless of the quality-of-life measure used for QALY calculations. Both EQ-5D-5L and ICECAP-O showed similar results in cost-utility analysis.
Collapse
Affiliation(s)
- Telma Zahirian Moghadam
- Social Determinants of Health Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Jane Powell
- Centre for Public Health and Wellbeing, School of Health and Social Wellbeing, College of Health, Science and Society, University of the West of England, Bristol, UK
| | - Afshan Sharghi
- Department of Community Medicine, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Hamed Zandian
- Social Determinants of Health Research Center, Ardabil University of Medical Sciences, Ardabil, Iran.
- Centre for Public Health and Wellbeing, School of Health and Social Wellbeing, College of Health, Science and Society, University of the West of England, Bristol, UK.
| |
Collapse
|
6
|
Hawley-Hague H, Tacconi C, Mellone S, Martinez E, Yang F, Su TL, Chiari L, Helbostad JL, Todd C. Using Smartphone TechnolOGy to Support an EffecTive Home ExeRcise Intervention to Prevent Falls amongst Community-Dwelling Older Adults: The TOGETHER Feasibility RCT. Gerontology 2022; 69:783-798. [PMID: 36470216 PMCID: PMC10273876 DOI: 10.1159/000528471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 11/27/2022] [Indexed: 10/14/2023] Open
Abstract
INTRODUCTION Falls have major implications for quality of life, independence, and cost of health services. Strength and balance training has been found to be effective in reducing the rate/risk of falls, as long as there is adequate fidelity to the evidence-based programme. The aims of this study were to (1) assess the feasibility of using the "Motivate Me" and "My Activity Programme" interventions to support falls rehabilitation when delivered in practice and (2) assess study design and trial procedures for the evaluation of the intervention. METHODS A two-arm pragmatic feasibility randomized controlled trial was conducted with five health service providers in the UK. Patients aged 50+ years eligible for a falls rehabilitation exercise programme from community services were recruited and received either (1) standard service with a smartphone for outcome measurement only or (2) standard service plus the "Motivate Me" and "My Activity Programme" apps. The primary outcome was feasibility of the intervention, study design, and procedures (including recruitment rate, adherence, and dropout). Outcome measures include balance, function, falls, strength, fear of falling, health-related quality of life, resource use, and adherence, measured at baseline, three-month, and six-month post-randomization. Blinded assessors collected the outcome measures. RESULTS Twenty four patients were randomized to control group and 26 to intervention group, with a mean age of 77.6 (range 62-92) years. We recruited 37.5% of eligible participants across the five clinical sites. 77% in the intervention group completed their full exercise programme (including the use of the app). Response rates for outcome measures at 6 months were 77-80% across outcome measures, but this was affected by the COVID-19 pandemic. There was a mean 2.6 ± 1.9 point difference between groups in change in Berg balance score from baseline to 3 months and mean 4.4 ± 2.7 point difference from baseline to 6 months in favour of the intervention group. Less falls (1.8 ± 2.8 vs. 9.1 ± 32.6) and less injurious falls (0.1 ± 0.5 vs. 0.4 ± 0.6) in the intervention group and higher adherence scores at three (17.7 ± 6.8 vs. 13.1 ± 6.5) and 6 months (15.2 ± 7.8 vs. 14.9 ± 6.1). There were no related adverse events. Health professionals and patients had few technical issues with the apps. CONCLUSIONS The motivational apps and trial procedures were feasible for health professionals and patients. There are positive indications from outcome measures in the feasibility trial, and key criteria for progression to full trial were met.
Collapse
Affiliation(s)
- Helen Hawley-Hague
- School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, and Manchester Academic Health Sciences Centre, and NIHR Applied Research Collaboration − Greater Manchester, Manchester, UK
| | - Carlo Tacconi
- Health Sciences and Technologies-Interdepartmental Center for Industrial Research, University of Bologna, Bologna, Italy
- mHealth Technologies s.r.l., Bologna, Italy
| | - Sabato Mellone
- Health Sciences and Technologies-Interdepartmental Center for Industrial Research, University of Bologna, Bologna, Italy
- mHealth Technologies s.r.l., Bologna, Italy
- Department of Electrical, Electronic and Information Engineering «Guglielmo Marconi» - University of Bologna, Bologna, Italy
| | - Ellen Martinez
- School of Human and Health Sciences University of Huddersfield, Huddersfield, UK
| | - Fan Yang
- Centre for Health Economics, University of York, York, UK
| | - Ting-li Su
- School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Lorenzo Chiari
- Health Sciences and Technologies-Interdepartmental Center for Industrial Research, University of Bologna, Bologna, Italy
- mHealth Technologies s.r.l., Bologna, Italy
- Department of Electrical, Electronic and Information Engineering «Guglielmo Marconi» - University of Bologna, Bologna, Italy
| | - Jorunn L. Helbostad
- Department of Neuromedicine and Movement Science, The Faculty of Medicine and Health Sciences, The Norwegian University of Science and Technology, NTNU, Trondheim, Norway
| | - Chris Todd
- School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, and Manchester Academic Health Sciences Centre, and NIHR Applied Research Collaboration − Greater Manchester, Manchester, UK
- Manchester University NHS Foundation Trust, Manchester, UK
| |
Collapse
|
7
|
Buchholz I, Marten O, Janssen MF. Feasibility and validity of the EQ-5D-3L in the elderly Europeans: a secondary data analysis using SHARE(d) data. Qual Life Res 2022; 31:3267-3282. [PMID: 35624409 PMCID: PMC9546963 DOI: 10.1007/s11136-022-03158-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2022] [Indexed: 12/26/2022]
Abstract
PURPOSE To determine feasibility and validity of the EQ-5D-3L in the elderly European population. METHODS Secondary data analysis based on the study of health, ageing, and retirement in Europe (SHARE) to determine the percentage of missing items for EQ-5D dimensions and EQ VAS, and to demonstrate convergent/divergent validity with measures included in the SHARE survey. Known-groups validity was tested using literature-based hypotheses. Correlation coefficients and Cohen's f are reported. RESULTS Missing values were below 3% across all EQ-5D dimensions and gender strata, slightly increasing with age. Individuals' responses to each EQ-5D dimension were related to their ratings of other measures in expected directions. The EQ VAS and all EQ-5D dimensions (except anxiety/depression) moderately to strongly correlated with physical [e.g. number of limitations in activities of daily living (ADL): r = 0.313-0.658] and generic measures [CASP (control, autonomy, self-realization, pleasure)-19 scale, self-perceived health, number of symptoms: r = 0.318-0.622], while anxiety/depression strongly correlated with the EURO-D scale (r = 0.527). Both EQ-5D dimensions and EQ VAS discriminated well between two [or more] groups known to differ [e.g. anxiety/depression discriminated well between persons classified as depressed/not depressed using the EURO-D scale, f = 0.51; self-care differentiated best between individuals without and with 1 + ADL limitations, f = 0.69]. Sociodemographic variables like gender, education, and partner in household were hardly associated with EQ VAS scores (f < 0.25). CONCLUSION With item non-response of less than 3%, good discriminatory, and construct properties, the EQ-5D-3L showed to be a feasible and valid measure in the elderly Europeans.
Collapse
Affiliation(s)
| | - Ole Marten
- Department of Health Economics and Health Care Management, Bielefeld University, 33615, Bielefeld, Germany
| | - Mathieu F Janssen
- Department of Medical Psychology and Psychotherapy Erasmus MC, Erasmus University, PO Box 2040, 3000 CA, Rotterdam, The Netherlands
| |
Collapse
|
8
|
Busa I, Ordóñez-Mena JM, Yang Y, Wolstenholme J, Petrou S, Taylor CJ, O’Callaghan CA, Fraser SDS, Taal MW, McManus RJ, Hirst JA, Hobbs FDR. Quality of life in older adults with chronic kidney disease and transient changes in renal function: Findings from the Oxford Renal cohort. PLoS One 2022; 17:e0275572. [PMID: 36240168 PMCID: PMC9565742 DOI: 10.1371/journal.pone.0275572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 09/19/2022] [Indexed: 11/07/2022] Open
Abstract
Background Quality of life (QoL) is an important measure of disease burden and general health perception. The relationship between early chronic kidney disease (CKD) and QoL remains poorly understood. The Oxford Renal Study (OxRen) cohort comprises 1063 adults aged ≥60 years from UK primary care practices screened for early CKD, grouped according to existing or screen-detected CKD diagnoses, or biochemistry results indicative of reduced renal function (referred to as transient estimated glomerular filtration rate (eGFR) reduction). Objectives This study aimed to compare QoL in participants known to have CKD at recruitment to those identified as having CKD through a screening programme. Methods Health profile data and multi-attribute utility scores were reported for two generic questionnaires: 5-level EuroQol-5 Dimension (EQ-5D-5L) and ICEpop CAPability measure for Adults (ICECAP-A). QoL was compared between patients with existing and screen-detected CKD; those with transient eGFR reduction served as the reference group in univariable and multivariable linear regression. Results Mean and standard deviation utility scores were not significantly different between the subgroups for EQ-5D-5L (screen-detected:0.785±0.156, n = 480, transient:0.779±0.157, n = 261, existing CKD:0.763±0.171, n = 322, p = 0.216) or ICECAP-A (screen-detected:0.909±0.094, transient:0.904±0.110, existing CKD:0.894±0.115, p = 0.200). Age, smoking status, and number of comorbidities were identified as independent predictors of QoL in this cohort. Conclusion QoL of participants with existing CKD diagnoses was not significantly different from those with screen-detected CKD or transient eGFR reduction and was similar to UK mean scores for the same age, suggesting that patient burden of early CKD is minor. Moreover, CKD-related comorbidities contribute more significantly to disease burden in earlier stages of CKD than renal function per se. Larger prospective studies are required to define the relationship between QoL and CKD progression more precisely. These data also confirm the essentially asymptomatic nature of CKD, implying that routine screening or case finding are required to diagnose it.
Collapse
Affiliation(s)
- Isabella Busa
- University of Oxford Medical School, Osler House, John Radcliffe Hospital, Oxford, United Kingdom
- * E-mail:
| | - José M. Ordóñez-Mena
- Nuffield Department of Primary Care Health Science, University of Oxford, Oxford, United Kingdom
- National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Yaling Yang
- Nuffield Department of Primary Care Health Science, University of Oxford, Oxford, United Kingdom
- National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Jane Wolstenholme
- Health Economics Research Centre, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Stavros Petrou
- Nuffield Department of Primary Care Health Science, University of Oxford, Oxford, United Kingdom
| | - Clare J. Taylor
- Nuffield Department of Primary Care Health Science, University of Oxford, Oxford, United Kingdom
| | | | - Simon D. S. Fraser
- School of Primary Care, Population Sciences and Medical Education, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Maarten W. Taal
- Centre for Kidney Research and Innovation, School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Richard J. McManus
- Nuffield Department of Primary Care Health Science, University of Oxford, Oxford, United Kingdom
| | - Jennifer A. Hirst
- Nuffield Department of Primary Care Health Science, University of Oxford, Oxford, United Kingdom
- National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - F. D. Richard Hobbs
- Nuffield Department of Primary Care Health Science, University of Oxford, Oxford, United Kingdom
- National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| |
Collapse
|
9
|
Penton H, Dayson C, Hulme C, Young T. An Investigation of Age-Related Differential Item Functioning in the EQ-5D-5L Using Item Response Theory and Logistic Regression. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2022; 25:1566-1574. [PMID: 35487819 DOI: 10.1016/j.jval.2022.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 03/07/2022] [Accepted: 03/19/2022] [Indexed: 06/14/2023]
Abstract
OBJECTIVES In economic evaluations, quality of life is measured using patient-reported outcome measures (PROMs), such as the EQ-5D-5L. A key assumption for the validity of PROMs data is measurement invariance, which requires that PROM items and response options are interpreted the same across respondents. If measurement invariance is violated, PROMs exhibit differential item functioning (DIF), whereby individuals from different groups with the same underlying health respond differently, potentially biasing scores. One important group of healthcare consumers who have been shown to have different views or priorities over health is older adults. This study investigates age-related DIF in the EQ-5D-5L using item response theory (IRT) and ordinal logistic regression approaches. METHODS Multiple-group IRT models were used to investigate DIF, by assessing whether older adults aged 65+ years and younger adults aged 18 to 64 years with the same underlying health had different IRT parameter estimates and expected item and EQ-5D-5L level sum scores. Ordinal logistic regression was also used to examine whether DIF resulted in meaningful differences in expected EQ level sum scores. Effect sizes examined whether DIF indicated meaningful score differences. RESULTS The anxiety/depression item exhibited meaningful DIF in both approaches, with older adults less likely to report problems. Pain/discomfort and mobility exhibited DIF to a lesser extent. CONCLUSIONS When using the EQ-5D-5L to evaluate interventions and make resource allocation decisions, scoring bias due to DIF should be controlled for to prevent inefficient service provision, where the most cost-effective services are not provided, which could be detrimental to patients and the efficiency of health budgets.
Collapse
Affiliation(s)
- Hannah Penton
- School of Health and Related Research, University of Sheffield, Sheffield, England, UK.
| | - Christopher Dayson
- Centre for Regional Economic and Social Research, Sheffield Hallam University, Sheffield, England, UK
| | - Claire Hulme
- Institute of Health Research, University of Exeter, St Luke's Campus, Exeter, England, UK
| | - Tracey Young
- School of Health and Related Research, University of Sheffield, Sheffield, England, UK
| |
Collapse
|
10
|
Nakamura CA, Mitchell PM, Peters TJ, Moreno-Agostino D, Araya R, Scazufca M, Hollingworth W. A Validation Study of the EQ-5D-5L and ICEpop Capability Measure for Older People Among Older Individuals With Depressive Symptoms in Brazil. Value Health Reg Issues 2022; 30:91-99. [PMID: 35325703 DOI: 10.1016/j.vhri.2021.11.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 09/03/2021] [Accepted: 11/30/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVES This study aimed to assess the known-groups validity of the EQ-5D-5L and the ICEpop Capability Measure for Older People (ICECAP-O), 2 outcome measures used in economic evaluation, among older adults with depressive symptoms in socioeconomically deprived areas of Brazil. We also explored the role of education and income on responses to these measures. METHODS This cross-sectional study used baseline data from PROACTIVE, a cluster randomized controlled trial to evaluate a psychosocial intervention for late-life depression among older adults. Participants aged ≥60 years with a 9-item Patient Health Questionnaire score ≥10 were recruited from 20 primary healthcare clinics. Ordered logistic regression models assessed the association between depressive symptoms severity, income, and education and dimension-level responses on the EQ-5D-5L and ICECAP-O. Multivariable regression models investigated the ability of EQ-5D-5L and ICECAP-O scores to discriminate between depressive symptoms severity levels and other characteristics, including education level and household income. RESULTS A total of 715 participants were included in the study. Depressive symptoms severity was associated with all EQ-5D-5L and ICECAP-O dimensions, except the ICECAP-O enjoyment attribute. In contrast, household income was only associated with the ICECAP-O security attribute. Higher severity of depressive symptoms (9-item Patient Health Questionnaire scores) was also strongly associated with lower (ie, worse) scores on both measures in all models. Education level and household income showed no association with either EQ-5D-5L or ICECAP-O scores. CONCLUSIONS To best of our knowledge, this is the first study that investigated the validity of these 2 measures among older adults in Brazil. Both EQ-5D-5L and ICECAP-O showed evidence of validity in differentiating depressive symptom severity.
Collapse
Affiliation(s)
- Carina A Nakamura
- Departamento de Psiquiatria, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil.
| | - Paul M Mitchell
- Health Economics Bristol, Bristol Medical School, University of Bristol, Bristol, England, UK
| | - Tim J Peters
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, England, UK
| | - Darío Moreno-Agostino
- Health Service and Population Research, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, England, UK
| | - Ricardo Araya
- Health Service and Population Research, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, England, UK
| | - Marcia Scazufca
- Instituto de Psiquiatria, Hospital das Clinicas, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - William Hollingworth
- Health Economics Bristol, Bristol Medical School, University of Bristol, Bristol, England, UK
| |
Collapse
|
11
|
Marten O, Greiner W. Feasibility properties of the EQ-5D-3L and 5L in the general population: evidence from the GP Patient Survey on the impact of age. HEALTH ECONOMICS REVIEW 2022; 12:28. [PMID: 35593942 PMCID: PMC9121571 DOI: 10.1186/s13561-022-00374-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 05/11/2022] [Indexed: 05/09/2023]
Abstract
BACKGROUND There is evidence to suggest that the proportion of missing values is slightly higher in the older population resulting in lower completion rates of the EQ-5D. However, existing studies rarely provide a within-sample comparison of feasibility properties across age groups to quantify this difference. Hence, this study examines feasibility properties of the EQ-5D-3L and 5L in the general population and explores the impact of age on the completion of EQ-5D instruments. METHODS We pool five waves from the English GP Patient Survey, where respondents self-report their health in either EQ-5D-3L or 5L. Descriptive analysis was undertaken to analyse the distribution and proportion of missing values and completion rates stratified by age and EQ-5D version; logistic regression models were specified to quantify the impact of age, gender and potential long-term conditions on the completion of each of the EQ-5D instruments. RESULTS The total sample comprises ~ 4.36 million observations, of which 2.88 million respondents report their health in 5L and 1.47 million in 3L, respectively. Respondents over 64 years have slightly more missing values in each dimension than younger respondents. The highest share was observed for the oldest age group in the dimension anxiety/depression (3L 9.1% vs. 5L 7.6%), but was otherwise below 5%. Consequently, completion rates (observed and predicted) decreased with older age and at a higher rate after the age of 64; this was more pronounced for the 3L. CONCLUSION Evidence from our study suggests that both the EQ-5D-3L and 5L have good feasibility properties. In comparison to younger populations there appears to be a higher proportion of respondents with incomplete responses beyond the age of 64 years. Overall, the 5L version compares more favourably in terms of missing values, completion rates as well as with regard to the expected probability of an incomplete descriptive system.
Collapse
Affiliation(s)
- Ole Marten
- School of Public Health, Department of Health Economics and Health Care Management, Bielefeld University, Universitaetsstrasse 25, Bielefeld, Germany.
| | - Wolfgang Greiner
- School of Public Health, Department of Health Economics and Health Care Management, Bielefeld University, Universitaetsstrasse 25, Bielefeld, Germany
| |
Collapse
|
12
|
Himmler S, Jonker M, van Krugten F, Hackert M, van Exel J, Brouwer W. Estimating an anchored utility tariff for the well-being of older people measure (WOOP) for the Netherlands. Soc Sci Med 2022; 301:114901. [PMID: 35325838 DOI: 10.1016/j.socscimed.2022.114901] [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: 01/11/2022] [Revised: 03/01/2022] [Accepted: 03/10/2022] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Health economic evaluations using common health-related quality of life measures may fall short in adequately incorporating all relevant benefits of health and social care interventions targeted at older people. The Well-being of Older People measure (WOOP) is a broader well-being measure that comprises nine well-being domains. The objective of this study was to estimate a utility tariff for the WOOP, to facilitate its application in cost-utility analyses. METHODS A discrete choice experiment (DCE) with duration approach was set up and fielded among 2,012 individuals from the Netherlands aged 65 years and above. Matched pairwise choice tasks, colour-coding and level overlap were used to reduce the cognitive burden of the DCE. The choice tasks were created using a Bayesian heterogeneous D-efficient design. The estimation procedure accommodated for nonlinear time preferences via an exponential discounting function. RESULTS The estimation results showed that 'physical health', 'mental health', and 'making ends meet' were the most important well-being domains for older people, followed by 'independence' and 'living situation'. Of somewhat lesser importance were domains like 'social life', 'receiving support' and 'feeling useful'. The generated utility tariffs can be used to translate well-being states described with the WOOP to a utility score between -0.616 and 1. CONCLUSIONS This study established a tariff for the WOOP, which will facilitate its use in economic evaluations of health and social care interventions targeted at older people, first of all in the Netherlands.
Collapse
Affiliation(s)
- Sebastian 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.
| | - Marcel 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
| | - Frédérique 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
| | - Mariska Hackert
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam (ESHPM), Rotterdam, the Netherlands
| | - Job van Exel
- 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
| | - Werner 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
| |
Collapse
|
13
|
Engel L, Bryan S, Whitehurst DGT. Conceptualising 'Benefits Beyond Health' in the Context of the Quality-Adjusted Life-Year: A Critical Interpretive Synthesis. PHARMACOECONOMICS 2021; 39:1383-1395. [PMID: 34423386 DOI: 10.1007/s40273-021-01074-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/25/2021] [Indexed: 06/13/2023]
Abstract
There is growing interest in extending the evaluative space of the quality-adjusted life-year framework beyond health. Using a critical interpretive synthesis approach, the objective was to review peer-reviewed literature that has discussed non-health outcomes within the context of quality-adjusted life-years and synthesise information into a thematic framework. Papers were identified through searches conducted in Web of Science, using forward citation searching. A critical interpretive synthesis allows for the development of interpretations (synthetic constructs) that go beyond those offered in the original sources. The final output of a critical interpretive synthesis is the synthesising argument, which integrates evidence from across studies into a coherent thematic framework. A concept map was developed to show the relationships between different types of non-health benefits. The critical interpretive synthesis was based on 99 papers. The thematic framework was constructed around four themes: (1) benefits affecting well-being (subjective well-being, psychological well-being, capability and empowerment); (2) benefits derived from the process of healthcare delivery; (3) benefits beyond the recipient of care (spillover effects, externalities, option value and distributional benefits); and (4) benefits beyond the healthcare sector. There is a wealth of research concerning non-health benefits and the evaluative space of the quality-adjusted life-year. Further dialogue and debate are necessary to address conceptual and normative challenges, to explore the societal willingness to sacrifice health for benefits beyond health and to consider the equity implications of different courses of action.
Collapse
Affiliation(s)
- Lidia Engel
- Faculty of Health, Deakin University, Burwood, VIC, Australia.
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada.
| | - Stirling Bryan
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
- Centre for Clinical Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada
| | - David G T Whitehurst
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada
- Centre for Clinical Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada
| |
Collapse
|
14
|
Baji P, Farkas M, Dobos Á, Zrubka Z, Kovács L, Gulácsi L, Péntek M. Comparing the measurement properties of the ICECAP-A and ICECAP-O instruments in ages 50-70: a cross-sectional study on a representative sample of the Hungarian general population. THE EUROPEAN JOURNAL OF HEALTH ECONOMICS : HEPAC : HEALTH ECONOMICS IN PREVENTION AND CARE 2021; 22:1453-1466. [PMID: 34091797 PMCID: PMC8558162 DOI: 10.1007/s10198-021-01325-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 05/18/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE The ICECAP-A and ICECAP-O were validated as capability wellbeing measures of adults aged 18 + and 65 + years, respectively. We aimed to compare their measurement properties in age group 50-70. METHODS Data were derived from a cross-sectional survey among a sample representative for the adult Hungarian population. Respondents aged between 50 and 70 filled in both the ICECAP-A and ICECAP-O questionnaires. We assessed and compared feasibility, agreement, discriminatory power, convergent and content validity of the two instruments and explored the determinants of the differences between the two measures. RESULTS 707 respondents (99.4%) provided full answers to both questionnaires (46.3% women, average age 60.1 years). The instruments showed similar construct and convergent validity and discriminatory power. Pearson-correlations between instrument items were strong (r > 0.5). ICECAP-A and ICECAP-O scores could be calculated from each other with a good confidence (R2 = 0.69 and 0.71). ICECAP-O scores (mean 0.87, SD = 0.12) were systematically higher than ICECAP-A scores (0.85, SD = 0.15) in most subgroups. The difference increased with the deterioration of capability and health, and with age. Regression results showed that employment and health status had larger marginal effect on the ICECAP-A than on the ICECAP-O scores, and these effects were larger than the effect of age on both measures. CONCLUSION Validity of both instruments was confirmed in the age groups 50-70. Given that employment and health status are important determinants of the differences between the two instruments besides age, the possibility of linking the choice between ICECAP-A and ICECAP-O to these factors should be investigated by further research.
Collapse
Affiliation(s)
- Petra Baji
- Department of Health Economics, Corvinus University of Budapest, Fővám tér 8, Budapest, 1093, Hungary.
| | - Miklós Farkas
- School of Accounting and Finance, University of Bristol, Bristol, UK
| | - Ágota Dobos
- Corvinus Center for Foreign Language Education and Research, Corvinus University of Budapest, Budapest, Hungary
| | - Zsombor Zrubka
- Health Economics Research Center-University Research and Innovation Center, Óbuda University, Budapest, Hungary
- Corvinus Institute for Advanced Studies, Corvinus University of Budapest, Budapest, Hungary
| | - Levente Kovács
- Physiological Controls Research Center-University Research and Innovation Center, Óbuda University, Budapest, Hungary
| | - László Gulácsi
- Health Economics Research Center-University Research and Innovation Center, Óbuda University, Budapest, Hungary
- Corvinus Institute for Advanced Studies, Corvinus University of Budapest, Budapest, Hungary
| | - Márta Péntek
- Health Economics Research Center-University Research and Innovation Center, Óbuda University, Budapest, Hungary
| |
Collapse
|
15
|
Marten O, Brand L, Greiner W. Feasibility of the EQ-5D in the elderly population: a systematic review of the literature. Qual Life Res 2021; 31:1621-1637. [PMID: 34613597 PMCID: PMC9098572 DOI: 10.1007/s11136-021-03007-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/26/2021] [Indexed: 11/29/2022]
Abstract
Purpose The EQ-5D-3L and 5L are widely used generic preference-based instruments, which are psychometrically sound with the general population, but little is known about the instruments’ feasibility in the elderly. Therefore, this systematic review summarises the available literature with regard to the feasibility properties of the instruments in the elderly population. Methods We conducted a systematic search in PubMed, PsycInfo and EuroQol databases using pre-specified vocabulary and inclusion/exclusion criteria to identify publications until November 2020. Study characteristics and outcomes referring to the feasibility of the EQ-5D-3L and 5L in the elderly were extracted, if all study participants were at least 65+ years. Results We identified 17 studies reporting feasibility outcomes based on four criteria: missing values, completion rates, completion time and broad qualitative statements referring to the completion. Missing values per dimension ranged from 0 to 10.7%, although being mostly below 7%. The completion rate was around 90% or better, whereas the EQ VAS rating was missing from 2.3 to 25.3% of the respondents. Only two of the included studies examined the EQ-5D-5L; 15 studies reported on the EQ-5D-3L. Conclusion Comparing our findings against the general population from published literature, we find that feasibility outcomes in older age groups are just below that of younger populations. Furthermore, older respondents have a higher propensity of requiring assistance or even an interviewer-based approach. Nonetheless, the reviewed literature indicates that the EQ-5D-3L still has good feasibility properties and, hence, is highly applicable in older respondents. However, further research is needed to explore feasibility properties of the EQ-5D-5L in this population.
Collapse
Affiliation(s)
- Ole Marten
- Department of Health Economics and Health Care Management, School of Public Health, Bielefeld University, Universitaetsstrasse 25, Bielefeld, Germany.
| | - Laura Brand
- Department of Health Economics and Health Care Management, School of Public Health, Bielefeld University, Universitaetsstrasse 25, Bielefeld, Germany
| | - Wolfgang Greiner
- Department of Health Economics and Health Care Management, School of Public Health, Bielefeld University, Universitaetsstrasse 25, Bielefeld, Germany
| |
Collapse
|
16
|
Péntek M, Poór G, Gulácsi L, Zrubka Z, Brodszky V, Rencz F, Dobos Á, Farkas M, Kovács L, Baji P. Musculoskeletal health and capability wellbeing: Associations between the HAQ-DI, ICECAP-A and ICECAP-O measures in a population survey. Musculoskelet Sci Pract 2021; 55:102420. [PMID: 34271413 DOI: 10.1016/j.msksp.2021.102420] [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] [Received: 03/02/2021] [Revised: 05/26/2021] [Accepted: 06/26/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND The capability approach has received increasing attention in wellbeing measurement in the past years, but it has still remained an underexplored area in musculoskeletal (MSK) health. OBJECTIVE We aimed to explore the capability wellbeing in relation to MSK health, by measuring the associations between the Health Assessment Questionnaire Disability Index (HAQ-DI) physical functioning and the ICECAP-A and ICECAP-O capability wellbeing measures. DESIGN A cross-sectional survey was performed in 2019 on a representative sample of the Hungarian general adult population. METHOD Capability wellbeing was measured by the ICECAP-A (age-group 18-64) and ICECAP-O (age group 65+) questionnaires. MSK health was defined by the HAQ-DI, the mobility domain of the EQ-5D-3L/-5L health status measures, self-reported walking problems and MSK diagnosis (neck/back/low back defects, hip/knee arthrosis, osteoporosis). RESULTS Altogether 2021 individuals (female: 50.1%) participated in the survey with mean (SD) age of 48.7 (17.9) years and HAQ-DI of 0.138 (0.390). ICECAP-A (N = 1568, 77.6%) and ICECAP-O (N = 453, 22.4%) scores were on average (SD) 0.894 (0.126) and 0.828 (0.150), respectively. Spearman correlations between the HAQ-DI and ICECAP-A/-O index scores were moderate (r = -0.303 and -0.496; p < 0.05). Both the ICECAP-A/-O index scores differed significantly (ANOVA test, p < 0.05) across all MSK subgroups. In the ordinary least square regressions, marginal effects of ICECAP-A/-O scores on HAQ-DI were significant (-0.149 and -0.123) when controlling for socio-demographic characteristics. CONCLUSIONS MSK health problems are associated with lower capability wellbeing. ICECAP-A/-O might capture effects of MSK conditions not measured by the HAQ-DI or the EQ-5D-5L. Further studies should test these associations in disease-specific samples.
Collapse
Affiliation(s)
- Márta Péntek
- Health Economics Research Center, University Research and Innovation Center, Óbuda University, Bécsi út 96/B, H-1034, Budapest, Hungary; Department of Health Economics, Corvinus University of Budapest, Fővám Tér 8, H-1093, Budapest, Hungary.
| | - Gyula Poór
- I. Department of Rheumatology, National Institute of Rheumatology and Physiotherapy; Frankel Leó út 62., H-1023, Budapest, Hungary
| | - László Gulácsi
- Health Economics Research Center, University Research and Innovation Center, Óbuda University, Bécsi út 96/B, H-1034, Budapest, Hungary; Department of Health Economics, Corvinus University of Budapest, Fővám Tér 8, H-1093, Budapest, Hungary
| | - Zsombor Zrubka
- Health Economics Research Center, University Research and Innovation Center, Óbuda University, Bécsi út 96/B, H-1034, Budapest, Hungary; Department of Health Economics, Corvinus University of Budapest, Fővám Tér 8, H-1093, Budapest, Hungary
| | - Valentin Brodszky
- Department of Health Economics, Corvinus University of Budapest, Fővám Tér 8, H-1093, Budapest, Hungary
| | - Fanni Rencz
- Department of Health Economics, Corvinus University of Budapest, Fővám Tér 8, H-1093, Budapest, Hungary; Hungarian Academy of Sciences, Premium Postdoctoral Research Programme, Nádor U. 7, H-1051, Budapest, Hungary
| | - Ágota Dobos
- Corvinus Center for Teaching Foreign Language Education and Research, Corvinus University of Budapest, Fővám Tér 8, H-1093, Budapest, Hungary
| | - Miklós Farkas
- Department of Accounting and Finance, University of Bristol, Priory Road Complex, Bristol BS8 1TU, UK
| | - Levente Kovács
- Physiological Controls Research Center, University Research and Innovation Center, Óbuda University, Bécsi út 96/B, H-1034, Budapest, Hungary
| | - Petra Baji
- Department of Health Economics, Corvinus University of Budapest, Fővám Tér 8, H-1093, Budapest, Hungary
| |
Collapse
|
17
|
Hackert MQN, van Exel J, Brouwer WBF. Content validation of the Well-being of Older People measure (WOOP). Health Qual Life Outcomes 2021; 19:200. [PMID: 34419061 PMCID: PMC8380379 DOI: 10.1186/s12955-021-01834-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 08/03/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Valid measures of the well-being of older people are important for the evaluation of health and social care services. The nine-item Well-being of Older People measure (WOOP) was based on a novel framework derived from a recent Q-methodology study, and was developed to capture a comprehensive set of well-being domains relevant to older people, as identified by themselves. This study introduces the WOOP and describes the qualitative assessment of its feasibility and content validity. METHODS Between December 2017 and January 2018, a sampling agency retrieved data from 269 adults aged 65 years and older in the Netherlands. Using an online survey, participants were asked to complete the WOOP and to indicate the importance of each item to their well-being. Open-ended questions were used to collect information about participants' own definition of well-being, their interpretation of the items of the WOOP, and their assessment of the descriptions and response options provided with each item. Data were analysed using inductive content analysis with the software package ATLAS.ti. RESULTS The WOOP closely resembled respondents' own description of what well-being means to them. The majority of the respondents reported no important well-being aspects to be missing from the WOOP, and indicated all WOOP items to be at least 'reasonably important' to their well-being. Many linked the WOOP items to well-being aspects as intended, and only a few had suggestions for improving the items' descriptions and response options. CONCLUSIONS Given these results, all nine items were retained, and no items were added to the measure. Based on respondents' feedback, minor changes were made to the wording of some descriptions and response options of items. Concluding, the feasibility and content validity of the WOOP seem satisfactory. Further validation of this new measure is required, in different health and social care settings and among subgroups of older people with potentially different views on what constitutes well-being.
Collapse
Affiliation(s)
- Mariska Q N Hackert
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, P.O. Box 1738, 3000 DR, Rotterdam, The Netherlands.
| | - Job van Exel
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, P.O. Box 1738, 3000 DR, Rotterdam, The Netherlands.,Erasmus School of Economics, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Werner B F Brouwer
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, P.O. Box 1738, 3000 DR, Rotterdam, The Netherlands.,Erasmus School of Economics, Erasmus University Rotterdam, Rotterdam, The Netherlands
| |
Collapse
|
18
|
Feng YS, Jiang R, Pickard AS, Kohlmann T. Combining EQ-5D-5L items into a level summary score: demonstrating feasibility using non-parametric item response theory using an international dataset. Qual Life Res 2021; 31:11-23. [PMID: 34236579 PMCID: PMC8800896 DOI: 10.1007/s11136-021-02922-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/19/2021] [Indexed: 01/31/2023]
Abstract
Background The EQ-5D-5L is a well-established health questionnaire that estimates health utilities by applying preference-based weights. Limited work has been done to examine alternative scoring approaches when utility weights are unavailable or inapplicable. We examined whether the Mokken scaling approach can elucidate 1) if the level summary score is appropriate for the EQ-5D-5L and 2) an interpretation of such a score. Methods The R package “mokken” was used to assess monotonicity (scaling coefficients H, automated item selection procedure) and manifest invariant item ordering (MIIO: paired item response functions [IRF], HT). We used a rich dataset (the Multiple Instrument Comparison, MIC) which includes EQ-5D-5L data from six Western countries. Results While all EQ-5D-5L items demonstrated monotonicity, the anxiety/depression (AD) item had weak scalability (Hi = 0.377). Without AD, scalability improved from Hs = 0.559 to Hs = 0.714. MIIO revealed that the 5 items can be ordered, and the ordering is moderately accurate in the MIC data (HT = 0.463). Excluding AD, HT improves to 0.743. Results were largely consistent across disease and country subgroups. Discussion The 5 items of the EQ-5D-5L form a moderate to strong Mokken scale, enabling persons to be ordered using the level summary score. Item ordering suggests that the lower range of the score represents mainly problems with pain and anxiety/depression, the mid-range indicates additional problems with mobility and usual activities, and middle to higher range of scores reveals additional limitations with self-care. Scalability and item ordering are even stronger when the anxiety/depression item is not included in the scale. Supplementary Information The online version contains supplementary material available at 10.1007/s11136-021-02922-1.
Collapse
Affiliation(s)
- You-Shan Feng
- Institute for Clinical Epidemiology and Applied Biometrics, Medical University of Tübingen, Silcherstraße 5 72076, Tübingen, Germany. .,Institute for Community Medicine, University of Greifswald, Greifswald, Germany.
| | - Ruixuan Jiang
- Center for Observational and Real-World Evidence, Merck & Co, Kenilworth, NJ, USA
| | - A Simon Pickard
- College of Pharmacy, University of Illinois At Chicago, Chicago, IL, USA
| | - Thomas Kohlmann
- Institute for Community Medicine, University of Greifswald, Greifswald, Germany
| |
Collapse
|
19
|
Dams J, Huynh E, Riedel-Heller S, Löbner M, Brettschneider C, König HH. German tariffs for the ICECAP-Supportive Care Measure (ICECAP-SCM) for use in economic evaluations at the end of life. THE EUROPEAN JOURNAL OF HEALTH ECONOMICS : HEPAC : HEALTH ECONOMICS IN PREVENTION AND CARE 2021; 22:365-380. [PMID: 33475868 PMCID: PMC7954731 DOI: 10.1007/s10198-020-01260-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 12/18/2020] [Indexed: 05/19/2023]
Abstract
OBJECTIVES Economic evaluations often use preference-based value sets (tariffs) for health-related quality of life to quantify health effects. For wellbeing at the end of life, issues beyond health-related quality of life may be important. Therefore, the ICECAP Supportive Care Measure (ICECAP-SCM), based on the capability approach, was developed. A validated German ICECAP-SCM version was published recently. However, tariffs for the German ICECAP-SCM are not available. Therefore, the aim was to determine tariffs for the ICECAP-SCM based on preferences of the German general population. METHODS An online sample of 2996 participants completed a best-worst scaling (BWS) and a discrete choice experiment (DCE). BWSs required participants to choose the best and worst statement within the same capability state, whereas DCEs required participants to trade-off between two capability states. First, BWS and DCE data were analyzed separately. Subsequently, combined data were analyzed using scale-adjusted conditional logit latent class models. Models were selected based on the stability of solutions and the Bayesian information criterion. RESULTS The two latent class model was identified to be optimal for the BWS, DCE, and combined data, and was used to derive tariffs for the ICECAP-SCM capability states. BWS data captured differences in ICECAP-SCM scale levels, whereas DCE data additionally explained interactions between the seven ICECAP-SCM attributes. DISCUSSION The German ICECAP-SCM tariffs can be used in addition to health-related quality of life to quantify effectiveness in economic evaluations. The tariffs based on BWS data were similar for Germany and the UK, whereas the tariffs based on combined data varied. We would recommend to use tariffs based on combined data in German evaluations. However, only results on BWS data are comparable between Germany and the UK, so that tariffs based on BWS data should be used when comparing results between Germany and the UK.
Collapse
Affiliation(s)
- Judith Dams
- Department of Health Economics and Health Services Research, Hamburg Center for Health Economics, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
| | - Elisabeth Huynh
- Department of Health Service Research and Policy, Research School of Population Health, Australian National University, Canberra, Australia
| | - Steffi Riedel-Heller
- Institute of Social Medicine, Occupational Health and Public Health (ISAP), University of Leipzig, Leipzig, Germany
| | - Margrit Löbner
- Institute of Social Medicine, Occupational Health and Public Health (ISAP), University of Leipzig, Leipzig, Germany
| | - Christian Brettschneider
- Department of Health Economics and Health Services Research, Hamburg Center for Health Economics, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - Hans-Helmut König
- Department of Health Economics and Health Services Research, Hamburg Center for Health Economics, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| |
Collapse
|
20
|
Till M, Abu-Omar K, Ferschl S, Reimers AK, Gelius P. Measuring capabilities in health and physical activity promotion: a systematic review. BMC Public Health 2021; 21:353. [PMID: 33588799 PMCID: PMC7885491 DOI: 10.1186/s12889-020-10151-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 12/29/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The capability approach by Amartya Sen and Martha Nussbaum has gained increasing attention in the field of public health. As it combines individual, social and structural factors and shifts the focus of attention from the actual behavior towards available options for health behaviors that people can actually choose from, it may help advance our understanding of complex health issues. OBJECTIVES The aim of this article is to identify and describe tools available to measure capabilities within the context of health, with a specific focus on capabilities for health-enhancing physical activity. METHOD We conducted a systematic literature review using 11 databases covering scientific journal articles published in English or German between the years 2000 and 2020 with a focus on capabilities for health or physical activity. RESULTS We found a total of 51 articles meeting our inclusion criteria. Four articles measured capabilities using qualitative methods, one combined qualitative and quantitative methods, while the rest used quantitative methods. We identified a total 11 different capability questionnaires, all showing moderate to good validity/reliability. Only one questionnaire and one interview-based tool specifically dealt with capabilities for health enhancing physical activity. CONCLUSION Although we were able to identify measurement tools for capabilities in health, this review has shown that there is no generic tool available for the measurement across all population- and age-groups, and tools focusing on physical activity are scarce. However, our results can be used as guide for future projects that aim at measuring capabilities.
Collapse
Affiliation(s)
- M Till
- Department of Sport Science and Sport, Friedrich-Alexander-University, Erlangen Nuremberg, Gebbertstraße 123b, 91058, Erlangen, Germany.
| | - K Abu-Omar
- Department of Sport Science and Sport, Friedrich-Alexander-University, Erlangen Nuremberg, Gebbertstraße 123b, 91058, Erlangen, Germany
| | - S Ferschl
- Department of Sport Science and Sport, Friedrich-Alexander-University, Erlangen Nuremberg, Gebbertstraße 123b, 91058, Erlangen, Germany
| | - A K Reimers
- Department of Sport Science and Sport, Friedrich-Alexander-University, Erlangen Nuremberg, Gebbertstraße 123b, 91058, Erlangen, Germany
| | - P Gelius
- Department of Sport Science and Sport, Friedrich-Alexander-University, Erlangen Nuremberg, Gebbertstraße 123b, 91058, Erlangen, Germany
| |
Collapse
|
21
|
Mah C, Noonan VK, Bryan S, Whitehurst DGT. Empirical Validity of a Generic, Preference-Based Capability Wellbeing Instrument (ICECAP-A) in the Context of Spinal Cord Injury. PATIENT-PATIENT CENTERED OUTCOMES RESEARCH 2020; 14:223-240. [PMID: 32981008 DOI: 10.1007/s40271-020-00451-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND Assessing the validity of generic instruments across different clinical contexts is an important area of methodological research in economic evaluation and outcomes measurement. OBJECTIVE Our objective was to examine the empirical validity of a generic, preference-based capability wellbeing instrument (ICECAP-A) in the context of spinal cord injury. METHODS This study consisted of a secondary analysis of data collected using an online cross-sectional survey. The survey included questions regarding demographics, injury classifications and characteristics, secondary health conditions, quality of life and wellbeing, and functioning in activities of daily living. Analysis comprised the descriptive assessment of Spearman's rank correlations between item-/dimension-level data for the ICECAP-A and four preference-based health-related quality of life (HRQoL) instruments, and discriminant and convergent validity approaches to examine 21 evidence-informed or theoretically derived constructs. Constructs were defined using participant and injury characteristics and responses to a range of health, wellbeing and functioning outcomes. RESULTS Three hundred sixty-four individuals completed the survey. Mean index score for the ICECAP-A was 0.761; 12 (3%) individuals reported full capability (upper anchor; score = 1), and there were no reports of zero capabilities (lower anchor; score = 0). The strongest correlations were dominated by items and dimensions on the comparator (HRQoL) instruments that are non-health aspects of quality of life, such as happiness and control over one's life (including self-care). Of 21 hypothesised constructs, 19 were confirmed in statistical tests, the exceptions being the exploratory hypotheses regarding education and age at injury. CONCLUSION The ICECAP-A is an empirically valid outcome measure for assessing capability wellbeing in people with spinal cord injury living in a community setting. The extent to which the ICECAP-A provides complementary information to preference-based HRQoL instruments is dependent on the comparator.
Collapse
Affiliation(s)
- Cassandra Mah
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada.,Centre for Clinical Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada
| | - Vanessa K Noonan
- Praxis Spinal Cord Institute, Vancouver, BC, Canada.,Blusson Spinal Cord Centre, Vancouver, BC, Canada
| | - Stirling Bryan
- Centre for Clinical Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada.,School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - David G T Whitehurst
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada. .,Centre for Clinical Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada. .,International Collaboration on Repair Discoveries (ICORD), Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
| |
Collapse
|
22
|
Hackert MQN, van Exel J, Brouwer WBF. Well-being of Older People (WOOP): Quantitative validation of a new outcome measure for use in economic evaluations. Soc Sci Med 2020; 259:113109. [PMID: 32629325 DOI: 10.1016/j.socscimed.2020.113109] [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] [Revised: 04/30/2020] [Accepted: 06/03/2020] [Indexed: 02/04/2023]
Abstract
There is a need for comprehensive measures to evaluate the benefits of health and social care services for older people. The newly developed Well-being of Older People measure (WOOP) aims to capture all aspects that older people find important to their well-being. This study explores the validity and test-retest reliability of the WOOP. Between December 2017 and January 2018, an online survey was used to retrieve data from 1113 people aged 65 years and older in the Netherlands. Regression analyses on Cantril's Ladder scores were conducted to explore the relative importance of the items of the WOOP. Dimensionality was checked using exploratory factor analysis. Convergent and discriminant validity were investigated by relating the WOOP to several measures of health and well-being. Test-retest reliability was examined using data from 269 respondents that participated in a second online survey, distributed one week after the first. The items of the WOOP were significantly associated with Cantril's Ladder scores. When regressed simultaneously this was still true for all but the 'social contacts' item and one level of the 'acceptance and resilience' item. The dimensionality analysis revealed three factors, of which two included items of the WOOP and the EQ-5D-5L and the third only items of the WOOP. The WOOP correlated moderately to highly with physical health, and (very) highly with (mental) health and well-being measures. The test-retest reliability in terms of ICC was high, whereas the kappa for the items was fair to good, except for two items. Overall, the WOOP seems to capture aspects relevant to the well-being of older people adequately, and the results of first validity and reliability tests were satisfactory. Before the WOOP can be used in economic evaluations, further validation in a variety of health and social care settings is recommended, and utility weights need to be determined.
Collapse
Affiliation(s)
- Mariska Q N Hackert
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, P.O. Box 1738, 3000 DR, Rotterdam, the Netherlands.
| | - Job van Exel
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, P.O. Box 1738, 3000 DR, Rotterdam, the Netherlands; Erasmus School of Economics, Erasmus University Rotterdam, Rotterdam, the Netherlands.
| | - Werner B F Brouwer
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, P.O. Box 1738, 3000 DR, Rotterdam, the Netherlands; Erasmus School of Economics, Erasmus University Rotterdam, Rotterdam, the Netherlands.
| |
Collapse
|
23
|
Helter TM, Coast J, Łaszewska A, Stamm T, Simon J. Capability instruments in economic evaluations of health-related interventions: a comparative review of the literature. Qual Life Res 2020; 29:1433-1464. [PMID: 31875309 PMCID: PMC7253529 DOI: 10.1007/s11136-019-02393-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2019] [Indexed: 12/29/2022]
Abstract
PURPOSE Given increasing interest in using the capability approach for health economic evaluations and a growing literature, this paper aims to synthesise current information about the characteristics of capability instruments and their application in health economic evaluations. METHODS A systematic literature review was conducted to assess studies that contained information on the development, psychometric properties and valuation of capability instruments, or their application in economic evaluations. RESULTS The review identified 98 studies and 14 instruments for inclusion. There is some evidence on the psychometric properties of most instruments. Most papers found moderate-to-high correlation between health and capability measures, ranging between 0.41 and 0.64. ASCOT, ICECAP-A, -O and -SCM instruments have published valuation sets, most frequently developed using best-worst scaling. Thirteen instruments were originally developed in English and one in Portuguese; however, some translations to other languages are available. Ten economic evaluations using capability instruments were identified. The presentation of results show a lack of consensus regarding the most appropriate way to use capability instruments in economic evaluations with discussion about capability-adjusted life years (CALYs), years of capability equivalence and the trade-off between maximisation of capability versus sufficient capability. CONCLUSION There has been increasing interest in applying the capability-based approach in health economic evaluations, but methodological and conceptual issues remain. There is still a need for direct comparison of the different capability instruments and for clear guidance on when and how they should be used in economic evaluations.
Collapse
Affiliation(s)
- Timea Mariann Helter
- Department of Health Economics, Center for Public Health, Medical University of Vienna, Kinderspitalgasse 15, 1090, Vienna, Austria.
| | - Joanna Coast
- Health Economics Bristol, Bristol Medical School, University of Bristol, 1-5 Whiteladies Road, Bristol, BS8 1NU, UK
| | - Agata Łaszewska
- Department of Health Economics, Center for Public Health, Medical University of Vienna, Kinderspitalgasse 15, 1090, Vienna, Austria
| | - Tanja Stamm
- Section for Outcomes Research, Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University of Vienna, Spitalgasse 23, 1090, Vienna, Austria
| | - Judit Simon
- Department of Health Economics, Center for Public Health, Medical University of Vienna, Kinderspitalgasse 15, 1090, Vienna, Austria
- Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, OX3 7JX, UK
| |
Collapse
|
24
|
Baji P, Farkas M, Dobos Á, Zrubka Z, Gulácsi L, Brodszky V, Rencz F, Péntek M. Capability of well-being: validation of the Hungarian version of the ICECAP-A and ICECAP-O questionnaires and population normative data. Qual Life Res 2020; 29:2863-2874. [PMID: 32468403 PMCID: PMC7561558 DOI: 10.1007/s11136-020-02542-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/21/2020] [Indexed: 12/24/2022]
Abstract
Purpose We aimed to develop and assess the psychometric characteristics of the Hungarian language version of two well-being capability measures, the ICEpop CAPability measure for Adults/Older people (ICECAP-A/-O), and to establish population norms. Methods A cross-sectional survey was performed involving a representative sample of the Hungarian population. Socio-demographic characteristics, the use and provision of informal care were recorded. The Minimum European Health Module (MEHM), EQ-5D-5L, WHO-5 well-being index, happiness and life satisfaction visual analogue scale (VAS), Satisfaction with Life Scale (SWLS) measures were applied alongside the ICECAP-A (age-group 18–64) and ICECAP-O (age-group 65+). Results Altogether 1568 and 453 individuals completed the ICECAP-A/-O questionnaires, respectively. Cronbach’s alpha was 0.86 for both measures (internal consistency). Subgroup analyses showed positive associations between ICECAP-A/-O scores and marital status, employment, income, health status (MEHM) and informal care use (construct validity). Pearson correlations were strong (r > 0.5; p < 0.01) between ICECAP-A/-O indexes and EQ-5D-5L, WHO-5, happiness and satisfaction VAS and SWLS scores (convergent validity). The age, education, and marital status were no longer significant in the multiple regression analysis. Test–retest average (SD) scores were 0.88 (0.11) and 0.89 (0.10) for the ICECAP-A, and equally 0.86 (0.09) for the ICECAP-O (reliability). Conclusion This is the first study to provide ICECAP-A/-O population norms. Also, it is the first to explore associations with WHO-5 well-being index which, alongside the MEHM measures, enable estimates from routinely collected international health statistics. The Hungarian ICECAP-A/-O proved to be valid and reliable measurement tools. Socio-demographic characteristics had minor or no impact on ICECAP-A/-O. Other influencing factors deserve further investigation in future research. Electronic supplementary material The online version of this article (10.1007/s11136-020-02542-1) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Petra Baji
- Department of Health Economics, Corvinus University of Budapest, 8 Fővám tér, Budapest, 1093, Hungary
| | - Miklós Farkas
- Department of Accounting and Finance, University of Bristol, Bristol, UK
| | - Ágota Dobos
- Corvinus Center for Foreign Language Education and Research, Corvinus University of Budapest, Budapest, Hungary
| | - Zsombor Zrubka
- Department of Health Economics, Corvinus University of Budapest, 8 Fővám tér, Budapest, 1093, Hungary
| | - László Gulácsi
- Department of Health Economics, Corvinus University of Budapest, 8 Fővám tér, Budapest, 1093, Hungary
| | - Valentin Brodszky
- Department of Health Economics, Corvinus University of Budapest, 8 Fővám tér, Budapest, 1093, Hungary
| | - Fanni Rencz
- Department of Health Economics, Corvinus University of Budapest, 8 Fővám tér, Budapest, 1093, Hungary.,Hungarian Academy of Sciences, Premium Postdoctoral Research Programme, Budapest, Hungary
| | - Márta Péntek
- Department of Health Economics, Corvinus University of Budapest, 8 Fővám tér, Budapest, 1093, Hungary.
| |
Collapse
|
25
|
Shahtaheri RS, Nikfar S, Sari AA, Yekani Nejad MS. Cross-Cultural Adaptation and Psychometric Analysis of the Persian Version of the ICEpop CAPability Measure for Adults Capability Measure in the Iranian General Population. Value Health Reg Issues 2020; 21:188-193. [PMID: 32113181 DOI: 10.1016/j.vhri.2020.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 08/17/2019] [Accepted: 01/07/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVES The ICEpop CAPability measure for adults (ICECAP-A) is a measure of capability well-being for adults and, by focusing on more than health, can extend the evaluative space of economic evaluations. The aim of this study was to translate and culturally adapt the ICECAP-A questionnaire into Persian to assess the construct validity and reliability of the ICECAP-A in the Iranian general population. METHODS In this study, we followed Beaton's guidelines for cross-cultural adaptation of self-report measures. The questionnaire was administered to a sample of 1200 members of the general population using a stratified probability sampling method. The construct validity and reliability of the ICECAP-A were evaluated in relation to the EuroQol 5-dimension questionnaire (EQ-5D-5L). RESULTS After translating and adapting the questionnaire, the term "being settled" was changed to "stability" for the Iranian cultural context. A moderate correlation (r = 0.48) was found between the ICECAP-A and EQ-5D-5L index scores, and the ICECAP-A scores showed differences across different health and socio-economic groups. The results of the exploratory factor analysis indicated that the 2 instruments measured 2 different constructs. In terms of reliability, the internal consistency of the measure using Cronbach's alpha was found to be 0.82 and for test-retest reliability, the intraclass correlation coefficient (ICC) was found to be 0.90 for total scores. CONCLUSIONS The results of this study suggest that the Persian version of the ICECAP-A is a valid and reliable questionnaire and can complement EQ-5D measures already used in Iran.
Collapse
Affiliation(s)
- Rahil Sadat Shahtaheri
- Department of Pharmacoeconomics and Pharmaceutical Administration, Tehran University of Medical Sciences, Tehran, Iran
| | - Shekoufeh Nikfar
- Department of Pharmacoeconomics and Pharmaceutical Administration, Tehran University of Medical Sciences, Tehran, Iran.
| | - Ali Akbari Sari
- Department of Health Management and Economics, Tehran University of Medical Sciences, Tehran, Iran
| | - Mir Saeed Yekani Nejad
- Department of Epidemiology and Biostatistics, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
26
|
Tai D, Li E, Liu-Ambrose T, Bansback N, Sadatsafavi M, Davis JC. Patient-Reported Outcome Measures (PROMs) to Support Adherence to Falls Prevention Clinic Recommendations: A Qualitative Study. Patient Prefer Adherence 2020; 14:2105-2121. [PMID: 33154634 PMCID: PMC7608137 DOI: 10.2147/ppa.s269202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 08/27/2020] [Indexed: 11/23/2022] Open
Abstract
PURPOSE We examined how patient-reported outcome measures (PROMs) support patients' adherence to fall prevention recommendations in a novel primary care setting - the Falls Prevention Clinic. PATIENTS AND METHODS Using a patient-oriented qualitative study design, we recruited patient partners to our study team to assist in developing focus group prompts. A trained facilitator conducted five semi-structured interviews with a total of 21 Falls Prevention Clinic participants. A trained facilitator prompted participants about: their views on the EuroQol 5 domain - 5 level (EQ-5D-5L) PROM, their preferences for PROM administration and feedback, the presentation of PROM questionnaire data, the use of comparative data and the EQ-5D-5L in improving adherence to recommendations, and other information they would need to improve adherence. Participants' responses were coded according to three stages of qualitative analysis: open, axial and selective coding using an iterative and comparative approach. RESULTS "Opportunity" and "Development" emerged as higher-level themes for the participants' perspectives on how the EQ-5D-5L may be helpful for their appointments. "Frequency" described how often the participants believed the EQ-5D-5L should be administered and feedback provided. "Challenges", "Benefits", "Patients' Understanding", "Relevance of Data", and "Usefulness of Data" provided insight on how PROMs data presentation was viewed by patients. "Performance", "Resources", "Knowledge", "Role in Behaviour Change" highlighted the participants' ideas for the role of the EQ-5D-5L and additional information in supporting their adherence to falls prevention recommendations. Participants emphasized that patients would value further support information to facilitate their adherence. CONCLUSION This patient-oriented qualitative study, among individuals at high risk of future falls, sheds light on the importance of timely, understandable feedback, integrated with other clinical feedback in supporting adherence.
Collapse
Affiliation(s)
- Daria Tai
- Social & Economic Change Laboratory, Faculty of Management, University of British Columbia – Okanagan, Kelowna, British Columbia, Canada
- Center for Hip Health and Mobility, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
- Aging, Mobility, and Cognitive Neuroscience Lab, Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Eric Li
- Social & Economic Change Laboratory, Faculty of Management, University of British Columbia – Okanagan, Kelowna, British Columbia, Canada
| | - Teresa Liu-Ambrose
- Center for Hip Health and Mobility, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
- Aging, Mobility, and Cognitive Neuroscience Lab, Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Nick Bansback
- School of Population and Public Health, University of British Columbia – Vancouver, Vancouver, British Columbia, Canada
- Centre for Health Evaluation & Outcome Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Mohsen Sadatsafavi
- Faculty of Pharmaceutical Sciences, University of British Columbia – Vancouver, Vancouver, British Columbia, Canada
- Collaboration for Outcomes Research and Evaluation, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jennifer C Davis
- Social & Economic Change Laboratory, Faculty of Management, University of British Columbia – Okanagan, Kelowna, British Columbia, Canada
- Center for Hip Health and Mobility, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
- Aging, Mobility, and Cognitive Neuroscience Lab, Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Correspondence: Jennifer C Davis Faculty of Management, The University of British Columbia – Okanagan, 1137 Alumni Avenue, Kelowna, BCV1V 1V7, CanadaTel +1 250 807 9507 Email
| |
Collapse
|
27
|
Hawley-Hague H, Tacconi C, Mellone S, Martinez E, Easdon A, Yang FB, Su TL, Mikolaizak AS, Chiari L, Helbostad JL, Todd C. Can smartphone technology be used to support an effective home exercise intervention to prevent falls amongst community dwelling older adults?: the TOGETHER feasibility RCT study protocol. BMJ Open 2019; 9:e028100. [PMID: 31537557 PMCID: PMC6756425 DOI: 10.1136/bmjopen-2018-028100] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 08/06/2019] [Accepted: 08/08/2019] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION Falls have major implications for quality of life, independence and cost to the health service. Strength and balance training has been found to be effective in reducing the rate/risk of falls, as long as there is adequate fidelity to the evidence-based programme. Health services are often unable to deliver the evidence-based dose of exercise and older adults do not always sufficiently adhere to their programme to gain full outcomes. Smartphone technology based on behaviour-change theory has been used to support healthy lifestyles, but not falls prevention exercise. This feasibility trial will explore whether smartphone technology can support patients to better adhere to an evidence-based rehabilitation programme and test study procedures/outcome measures. METHODS AND ANALYSIS A two-arm, pragmatic feasibility randomised controlled trial will be conducted with health services in Manchester, UK. Seventy-two patients aged 50+years eligible for a falls rehabilitation exercise programme from two community services will receive: (1) standard service with a smartphone for outcome measurement only or (2) standard service plus a smartphone including the motivational smartphone app. The primary outcome is feasibility of the intervention, study design and procedures. The secondary outcome is to compare standard outcome measures for falls, function and adherence to instrumented versions collected using smartphone. Outcome measures collected include balance, function, falls, strength, fear of falling, health-related quality of life, resource use and adherence. Outcomes are measured at baseline, 3 and 6-month post-randomisation. Interviews/focus groups with health professionals and participants further explore feasibility of the technology and trial procedures. Primarily analyses will be descriptive. ETHICS AND DISSEMINATION The study protocol is approved by North West Greater Manchester East Research Ethics Committee (Rec ref:18/NW/0457, 9/07/2018). User groups and patient representatives were consulted to inform trial design, and are involved in study recruitment. Results will be reported at conferences and in peer-reviewed publications. A dissemination event will be held in Manchester to present the results of the trial. The protocol adheres to the recommended Standard Protocol Items: Recommendations for Interventional Trials (SPIRIT) checklist. TRIAL REGISTRATION NUMBER ISRCTN12830220; Pre-results.
Collapse
Affiliation(s)
- Helen Hawley-Hague
- Division of Nursing, Midwifery and Social Work, School of Health Sciences, Faculty of Biology, Medicine and Health and Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
| | - Carlo Tacconi
- Health Sciences and Technologies-Interdepartmental Center for Industrial Research, University of Bologna, Bologna, Italy
- mHealth Technologies srl, Bologna, Italy
| | - Sabato Mellone
- Health Sciences and Technologies-Interdepartmental Center for Industrial Research, University of Bologna, Bologna, Italy
- mHealth Technologies srl, Bologna, Italy
- Department of Electrical, Electronic and Information Engineering 'Guglielmo Marconi', University of Bologna, Bologna, Italy
| | - Ellen Martinez
- Central Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Angela Easdon
- Pennine Care NHS Foundation Trust, Ashton-under-Lyne, UK
| | - Fan Bella Yang
- Centre for Health Economics, University of York, York, UK
| | - Ting-Li Su
- Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | | | - Lorenzo Chiari
- Health Sciences and Technologies-Interdepartmental Center for Industrial Research, University of Bologna, Bologna, Italy
- mHealth Technologies srl, Bologna, Italy
- Department of Electrical, Electronic and Information Engineering 'Guglielmo Marconi', University of Bologna, Bologna, Italy
| | - Jorunn L Helbostad
- Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Chris Todd
- Division of Nursing, Midwifery and Social Work, School of Health Sciences, Faculty of Biology, Medicine and Health and Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
| |
Collapse
|
28
|
Hackert MQN, Brouwer WBF, Hoefman RJ, van Exel J. Views of older people in the Netherlands on wellbeing: A Q-methodology study. Soc Sci Med 2019; 240:112535. [PMID: 31557554 DOI: 10.1016/j.socscimed.2019.112535] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 08/31/2019] [Accepted: 09/05/2019] [Indexed: 12/12/2022]
Abstract
Population ageing and restricted budgets result in the need for an efficient allocation of scarce resources in care services for older people. As these services tend to address more than only health, diverse wellbeing measures have been developed to assess their benefits in economic evaluations. These measures are grounded in research on wellbeing of older people and its determinants. Little is known about possible heterogeneity in this context and the extent to which wellbeing measures cover the aspects of wellbeing that are most important to older people with different views on wellbeing. We conducted a Q-methodology study between December 2016 and October 2017 to investigate the variety in views among people aged 65 and older in the Netherlands on what is important to their wellbeing. A purposive sample of 53 respondents ranked 34 opinion statements according to importance to their wellbeing and explained their ranking during a follow-up interview. Data were analysed using by-person factor analysis to identify common patterns in the rankings of the statements. Five distinct views were extracted in which different aspects were considered important: (I) health, financial security and a life partner; (II) family, support and physical functioning (III); autonomy, mental health and helping others; (IV) social contacts, support, mental health and religion; and (V) a life partner, social contacts, living environment and adaptation. This heterogeneity in views of older people on what constitutes wellbeing supports the use of person-centered approaches in care services for older people. Arguably, (evaluations of) policies and services for older people should take this plurality into consideration.
Collapse
Affiliation(s)
- Mariska Q N Hackert
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, P.O. Box 1738, 3000 DR, Rotterdam, the Netherlands.
| | - Werner B F Brouwer
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, P.O. Box 1738, 3000 DR, Rotterdam, the Netherlands.
| | - Renske J Hoefman
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, P.O. Box 1738, 3000 DR, Rotterdam, the Netherlands.
| | - Job van Exel
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, P.O. Box 1738, 3000 DR, Rotterdam, the Netherlands; Erasmus School of Economics, Erasmus University Rotterdam, Rotterdam, the Netherlands.
| |
Collapse
|
29
|
Proud L, McLoughlin C, Kinghorn P. ICECAP-O, the current state of play: a systematic review of studies reporting the psychometric properties and use of the instrument over the decade since its publication. Qual Life Res 2019; 28:1429-1439. [PMID: 30666550 PMCID: PMC6522451 DOI: 10.1007/s11136-019-02114-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2019] [Indexed: 12/20/2022]
Abstract
PURPOSE A paper reporting the development of the ICECAP-O was published in 2006. Since then, there has been increasing interest in the use of capability-based measures within health economics and the ICECAP-O has been suggested for use in economic evaluation by decision-making bodies in the Netherlands and UK. METHODS A systematic review of studies published between January 2006 and October 2018 which have assessed the psychometric properties of ICECAP-O or utilised the measure within economic evaluation. RESULTS Twenty-four studies explored the psychometric properties of ICECAP-O and 21 have utilised the measure within economic evaluation; one study reported psychometric properties as well as utilising the measure within economic evaluation. The ICECAP-O has good construct validity and responsiveness, but there is evidence of some issues relating to content validity. In the context of economic evaluation, the ICECAP-O has, to date, mainly been included as a secondary economic measure and the reporting of results is brief with minimal detail and often no discussion. Five of the economic evaluation studies combined scores from ICECAP-O with time, but each used different terminology to describe this result. CONCLUSION Focus, in terms of publications, appears to have shifted now from assessment of psychometric properties to the utilisation of the ICECAP-O within economic evaluation. Further research is needed with respect to a decision-rule for the ICECAP measures. This additional research should also guide users in terms of appropriate analysis, terminology and presentation of results, which are in-keeping with the conceptual framework underpinning the ICECAP-O.
Collapse
Affiliation(s)
- Louise Proud
- Health Economics Unit, Institute of Applied Health Research, University of Birmingham, B15 2TT, Edgbaston, UK
| | - Carol McLoughlin
- Health Economics Unit, Institute of Applied Health Research, University of Birmingham, B15 2TT, Edgbaston, UK
| | - Philip Kinghorn
- Health Economics Unit, Institute of Applied Health Research, University of Birmingham, B15 2TT, Edgbaston, UK.
| |
Collapse
|
30
|
Feng YS, Jiang R, Kohlmann T, Pickard AS. Exploring the Internal Structure of the EQ-5D Using Non-Preference-Based Methods. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2019; 22:527-536. [PMID: 31104730 DOI: 10.1016/j.jval.2019.02.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 02/16/2019] [Accepted: 02/20/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND When the EuroQol EQ-5D is applied in settings other than resource allocation, a non-preference-based score may be more appropriate than societal, preference-weighted utility. To develop a psychometric score for the EQ-5D, its structural relationship, ie, how the 5 items/dimensions interrelate, must be understood to inform appropriate methods of summarizing the instrument. OBJECTIVES To explore psychometrically derived approaches of elucidating the 5-level EQ-5D (EQ-5D-5L) item structure. METHODS Three measurement models were assessed. All 5 items were modeled as reflective indicators using confirmatory factor analysis. EQ-5D-5L items were conceptualized as formative indicators, and other health scales (eg, the short form 36 health survey) were conceptualized as reflective indicators in Multiple Indicators Multiple Causes models (external MIMIC). The EQ-5D-5L items were modeled as a combination of formative and reflective indicators in internal MIMIC models. Results across 9 data sets from various countries and patient groups were examined to determine their robustness. RESULTS All items loaded well (0.63-0.96) in the confirmatory factor analysis except for anxiety/depression (0.20-0.66, excluding 1 outlier). The model fit statistics of the external MIMIC models were poor, and the coefficients of the Self-Care dimension were small. The internal MIMIC model with Mobility, Pain/Discomfort, and Anxiety/Depression as formative indicators and Self-Care and Usual Activities as reflective indicators fit best. The model results of the Spanish valuation data set were outliers. CONCLUSIONS Although there were some variations in results across subgroups, the relationship between the items remained robust. The evidence calls for testing of formative/reflective combination approaches to summarize the EQ-5D-5L.
Collapse
Affiliation(s)
- You-Shan Feng
- Institute for Community Medicine, University of Greifswald, Greifswald, Germany.
| | - Ruixuan Jiang
- University of Illinois at Chicago College of Pharmacy, Chicago, IL, USA
| | - Thomas Kohlmann
- Institute for Community Medicine, University of Greifswald, Greifswald, Germany
| | - A Simon Pickard
- University of Illinois at Chicago College of Pharmacy, Chicago, IL, USA
| |
Collapse
|
31
|
Łaszewska A, Schwab M, Leutner E, Oberrauter M, Spiel G, Simon J. Measuring broader wellbeing in mental health services: validity of the German language OxCAP-MH capability instrument. Qual Life Res 2019; 28:2311-2323. [PMID: 31030365 PMCID: PMC6620251 DOI: 10.1007/s11136-019-02187-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2019] [Indexed: 12/30/2022]
Abstract
PURPOSE The OxCAP-MH capabilities questionnaire was developed and validated in the UK for outcome measurement in mental health clinical studies. Its broader wellbeing construct or validity in routine mental health services so far has not been assessed. The objectives were to investigate the extent the OxCAP-MH measures broader wellbeing compared to the EQ-5D-5L and to test psychometric properties of the German language OxCAP-MH in routine mental health services in Austria. METHODS Study sample consisted of patients in socio-psychiatric services (n = 159) assessed at baseline and 6-month follow-up. Underlying factors associated with quality-of-life/wellbeing concepts measured by the OxCAP-MH and EQ-5D-5L were identified in exploratory factor analysis (EFA). Responsiveness was assessed using anchor questionnaires and standardised response mean (SRM). For discriminant validity, subgroups of respondents were compared using t test and one-way ANOVA. Test-retest analysis was assessed for a period of maximum 30 days from the baseline assessment with intra-class correlation coefficient (ICC). RESULTS EFA identified a two-factor structure. All EQ-5D-5L items and seven OxCAP-MH items loaded on one factor and nine remaining OxCAP-MH items loaded on a separate factor. Responsiveness was found for patients who improved in anchor questionnaire scores with large or moderate SRM statistics. OxCAP-MH discriminated between various groups in univariable and multivariable analyses. Reliability of the German language OxCAP-MH was confirmed by ICC of 0.80. CONCLUSIONS Besides providing evidence that the OxCAP-MH measures broader wellbeing constructs beyond traditional health-related quality of life, the study also confirms the validity of the instrument for implementation in routine evaluation of mental health services.
Collapse
Affiliation(s)
- Agata Łaszewska
- Department of Health Economics, Center for Public Health, Medical University of Vienna, Kinderspitalgasse 15/1, 1090, Vienna, Austria
| | - Markus Schwab
- pro mente Forschung, Villacher Straße 161, 9020, Klagenfurt am Wörthersee, Austria
| | - Eva Leutner
- pro mente kärnten GmbH, Villacher Straße 161, 9020, Klagenfurt am Wörthersee, Austria
| | - Marold Oberrauter
- pro mente kärnten GmbH, Villacher Straße 161, 9020, Klagenfurt am Wörthersee, Austria
| | - Georg Spiel
- pro mente Forschung, Villacher Straße 161, 9020, Klagenfurt am Wörthersee, Austria
- pro mente kärnten GmbH, Villacher Straße 161, 9020, Klagenfurt am Wörthersee, Austria
| | - Judit Simon
- Department of Health Economics, Center for Public Health, Medical University of Vienna, Kinderspitalgasse 15/1, 1090, Vienna, Austria.
- Department of Psychiatry, Warneford Hospital, University of Oxford, Warneford Ln, Oxford, OX3 7JX, UK.
- HERC, Nuffield Department of Population Health, University of Oxford, Richard Doll Building, Old Road Campus, Oxford, OX3 7LF, UK.
| |
Collapse
|
32
|
Morgan GS, Haase AM, Campbell RM, Ben-Shlomo Y. A pilot randomised controlled trial of physical activity facilitation for older adults: feasibility study findings. Pilot Feasibility Stud 2019; 5:40. [PMID: 30891309 PMCID: PMC6407174 DOI: 10.1186/s40814-019-0414-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 02/06/2019] [Indexed: 11/10/2022] Open
Abstract
Background More people are living longer lives leading to a growth in the population of older adults, many of whom have comorbidities and low levels of physical function. Physical activity in later life can prevent or delay age-related disability. Identifying a cost-effective means of increasing physical activity in older adults therefore remains an important public health priority. Physical Activity Facilitation (PAF) is an intervention shown to increase physical activity in adults with depression. The PAF model was modified for a population of older adults at risk of disability. This study aimed to assess the feasibility of undertaking a definitive RCT of the PAF intervention in the target population. Methods A pilot randomised controlled trial (RCT) was delivered through primary care. Patients at risk of disability and who were not meeting recommended levels of physical activity were recruited through postal invitation and direct approach in the practice waiting room. Those meeting eligibility criteria were enrolled and randomised at a 2:1 ratio to the PAF intervention and control. Behaviour change techniques were used by facilitators with participants over the telephone and face-to-face for 6 months. Outcome measures including physical function, physical activity, depression, social support, and quality of life were collected at baseline and at 6 months. Results A high proportion of patients responded to the initial invitation (68%), yet many were ineligible due to high levels of self-reported physical activity and baseline physical function. Fifty-one participants were recruited to the trial, with an average age of 74 years (range 65–89), and there were high rates of adherence and retention to the study (94% follow-up at 6 months). The majority of outcome data collected from participants was complete; however, the validated scale used to measure self-reported physical activity was associated with high levels of missing data. Conclusions The findings of this pilot RCT suggest that it is feasible to deliver a definitive RCT of the PAF intervention in this population. Further work is required to improve the efficiency of recruitment and to minimise missing data from self-reported physical activity measures. Trial registration Current controlled trials ISRCTN80470273. Registered 25 October 2013. Electronic supplementary material The online version of this article (10.1186/s40814-019-0414-9) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Gemma S Morgan
- 1Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Anne M Haase
- 2School of Policy Studies, University of Bristol, Bristol, UK
| | - Rona M Campbell
- 1Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Yoav Ben-Shlomo
- 1Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| |
Collapse
|
33
|
Adams N, Skelton D, Bailey C, Howel D, Coe D, Lampitt R, Wilkinson J, Fouweather T, de Jong LD, Gawler S, Deary V, Gray J, Waterman H, Parry SW. Visually Impaired OLder people’s Exercise programme for falls prevenTion (VIOLET): a feasibility study. PUBLIC HEALTH RESEARCH 2019. [DOI: 10.3310/phr07040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background
The visually impaired have a higher risk of falling and are likely to avoid activity.
Objectives
To adapt the existing Falls Management Exercise (FaME) programme, which is delivered in the community, for visually impaired older people (VIOP) and to investigate the feasibility of conducting a definitive randomised controlled trial of this adapted intervention.
Design
Phase I – consultation with stakeholders to adapt the existing programme. Two focus groups were conducted, each with 10 VIOP across the study sites. Phase II – two-centre randomised pilot trial and economic evaluation of the adapted programme for VIOP versus usual care. Phases III and IV – qualitative interviews with VIOP and Postural Stability Instructors regarding their views and experiences of the research process, undertaking the intervention and its acceptability.
Intervention
This was adapted from the group-based FaME programme. A 1-hour exercise programme ran weekly over 12 weeks at the study sites (Newcastle upon Tyne and Glasgow) and was delivered by third-sector organisations. Participants were advised to also exercise at home for 2 hours per week. Those randomised to the usual activities group received no intervention.
Outcome measures
These were completed at baseline, week 12 and week 24. The primary potential outcome measure used was the Short Form Falls Efficacy Scale – International. Secondary outcome assessment measures were activity avoidance, current activity, balance/falls risk, physical activity, loneliness, anxiety and depression, work and social adjustment, quality of life and economic costs. Participants’ compliance was assessed by reviewing attendance records and self-reported compliance with the home exercises. Instructors’ compliance with the course content (fidelity) was assessed by a researcher attending a sample of exercise sessions. Adverse events were collected in a weekly telephone call for all participants in both the intervention and control arm.
Findings
An adapted exercise programme was devised with stakeholders. In the pilot trial, 82 participants drawn from community-living VIOP were screened, 68 met the inclusion criteria and 64 were randomised, with 33 allocated to the intervention and 31 to the usual activities arm. A total of 94% of participants provided data at week 12 and 92% at week 24. Adherence to the study was high. The intervention was found to be both safe and acceptable to participants, with 76% attending nine or more classes. Median time for home exercise was 50 minutes per week. There was little or no evidence that fear of falling, exercise, attitudinal or quality-of-life outcomes differed between trial arms at follow-up. Thematic analysis of the interviews with VIOP participants identified facilitators of and barriers to exercise, including perceived relevance to health, well-being and lifestyle, social interaction, self-perception and practical assistance. Instructors identified issues regarding level of challenge and assistance from a second person.
Limitations
The small sample size and low falls risk of the study sample are study limitations.
Conclusion
Although adaptation, recruitment and delivery were successful, the findings (particularly from qualitative research with instructors and participants) indicated that VIOP with low to moderate falls risk could be integrated into mainstream programmes with some adaptations. A future definitive trial should consider graduated exercises appropriate to ability and falls risk within mainstream provision. Other outcome measures may additionally be considered.
Trial registration
Current Controlled Trials ISRCTN16949845.
Funding
This project was funded by the NIHR Public Health Research programme and will be published in full in Public Health Research; Vol. 7, No. 4. See the NIHR Journals Library website for further project information.
Collapse
Affiliation(s)
- Nicola Adams
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Dawn Skelton
- Institute of Applied Health Research, School of Health and Life Sciences, Centre for Living, Glasgow Caledonian University, Glasgow, UK
| | - Cathy Bailey
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Denise Howel
- Institute of Health and Society, Newcastle University, Newcastle upon Tyne, UK
| | - Dorothy Coe
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Rosy Lampitt
- Newcastle Clinical Trials Unit, Newcastle University, Newcastle upon Tyne, UK
| | - Jennifer Wilkinson
- Newcastle Clinical Trials Unit, Newcastle University, Newcastle upon Tyne, UK
| | - Tony Fouweather
- Institute of Health and Society, Newcastle University, Newcastle upon Tyne, UK
| | - Lex D de Jong
- Institute of Applied Health Research, School of Health and Life Sciences, Centre for Living, Glasgow Caledonian University, Glasgow, UK
| | - Sheena Gawler
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Vincent Deary
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Joanne Gray
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | | | - Steve W Parry
- Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
| |
Collapse
|
34
|
Botes R, Vermeulen KM, Gerber AM, Ranchor AV, Buskens E. Health-related quality of life and well-being health state values among Dutch oldest old. Patient Prefer Adherence 2019; 13:721-728. [PMID: 31190754 PMCID: PMC6522649 DOI: 10.2147/ppa.s193171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 02/23/2019] [Indexed: 11/23/2022] Open
Abstract
Background: Valuing hypothetical health states is a demanding personal process, since it involves the psychological evaluation of hypothetical health states. It seems plausible that elderly individuals will value hypothetical health states differently than the general population. It is, however, important to understand the psychological division that oldest old subgroups construct between acceptable and unacceptable health states. This information can produce important evidence regarding well-being and disability conceptualization. Objective: To investigate how Dutch oldest old, conceptualize health-related quality of life health states when compared to well-being health states. In addition, we aim to compare subgroups, based on dependency classification. Methods: Ninety-nine elderly living in the Groningen, Hoogeveen and Veendam areas of the Netherlands participated in the study. Respondents were classified into three groups based on dependency levels. The respondents were asked to value hypothetical health states, a generic preference-based HRQoL and a well-being instrument, using a visual analog scale. Results: All three groups ranked the same health states, from both questionnaires, below the average across the health states. The health-related quality of life health states was consistently ranked lower than the current well-being health states. Conclusions: Health state valuations performed by the oldest old indicate that conceptually, respondents view below average health-related and well-being health states as undesirable. The results indicated that the oldest old do view deficits in health-related health states as more important than deficits in well-being health states. Since the oldest old performed the valuations, focused interventions to improve below average health-related outcomes might be the most cost-effective way to increase oldest old well-being outcomes.
Collapse
Affiliation(s)
- Riaan Botes
- Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, 9700 RB, The Netherlands
- Correspondence: Riaan BotesDepartment of Epidemiology, University Medical Center Groningen, University of Groningen, PO Box 30.001, Groningen9700 RB, The NetherlandsTel +312 779 359 7351Email
| | - Karin M Vermeulen
- Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, 9700 RB, The Netherlands
| | - Anthonie M Gerber
- Department of Basic Medical Sciences, Faculty of Health Sciences, University of the Free State, Bloemfontein, 9300, South Africa
| | - Adelita V Ranchor
- Department of Health Psychology, University Medical Center Groningen, University of Groningen, Groningen, 9700 AD, The Netherlands
| | - Erik Buskens
- Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, 9700 RB, The Netherlands
| |
Collapse
|
35
|
Adams N, Skelton DA, Howel D, Bailey C, Lampitt R, Fouweather T, Gray J, Coe D, Wilkinson J, Gawler S, de Jong LD, Waterman H, Deary V, Clarke M, Parry SW. Feasibility of trial procedures for a randomised controlled trial of a community based group exercise intervention for falls prevention for visually impaired older people: the VIOLET study. BMC Geriatr 2018; 18:307. [PMID: 30541483 PMCID: PMC6292024 DOI: 10.1186/s12877-018-0998-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 11/27/2018] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Visually impaired older people (VIOP) have a higher risk of falling than their sighted peers, and are likely to avoid physical activity. The aim was to adapt the existing Falls Management Exercise (FaME) programme for VIOP, delivered in the community, and to investigate the feasibility of conducting a definitive randomised controlled trial (RCT) of this adapted intervention. METHODS Two-centre randomised mixed methods pilot trial and economic evaluation of the adapted group-based FaME programme for VIOP versus usual care. A one hour exercise programme ran weekly over 12 weeks at the study sites (Newcastle and Glasgow), delivered by third sector (voluntary and community) organisations. Participants were advised to exercise at home for an additional two hours over the week. Those randomised to the usual activities group received no intervention. Outcome measures were completed at baseline, 12 and 24 weeks. The potential primary outcome was the Short Form Falls Efficacy Scale - International (SFES-I). Participants' adherence was assessed by reviewing attendance records and self-reported compliance to the home exercises. Adherence with the course content (fidelity) by instructors was assessed by a researcher. Adverse events were collected in a weekly phone call. RESULTS Eighteen participants, drawn from community-living VIOP were screened; 68 met the inclusion criteria; 64 participants were randomised with 33 allocated to the intervention and 31 to the usual activities arm. 94% of participants provided data at the 12 week visit and 92% at 24 weeks. Adherence was high. The intervention was found to be safe with 76% attending nine or more classes. Median time for home exercise was 50 min per week. There was little or no evidence that fear of falling, balance and falls risk, physical activity, emotional, attitudinal or quality of life outcomes differed between trial arms at follow-up. CONCLUSIONS The intervention, FaME, was implemented successfully for VIOP and all progression criteria for a main trial were met. The lack of difference between groups on fear of falling was unsurprising given it was a pilot study but there may have been other contributory factors including suboptimal exercise dose and apparent low risk of falls in participants. These issues need addressing for a future trial. TRIAL REGISTRATION Current Controlled Trials ISRCTN ID: 16949845 Registered: 21 May 2015.
Collapse
Affiliation(s)
- Nicola Adams
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, NE7 7XA UK
| | - Dawn A. Skelton
- Institute of Applied Health Research, School of Health & Life Sciences, Glasgow Caledonian University, Glasgow, UK
| | - Denise Howel
- Institute of Health and Society, Baddiley-Clark Building, Newcastle University, Newcastle upon Tyne, UK
| | - Cathy Bailey
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, NE7 7XA UK
| | - Rosy Lampitt
- Newcastle Clinical Trials Unit, Newcastle University, 1-4 Claremont Terrace, Newcastle upon Tyne, UK
| | - Tony Fouweather
- Institute of Health and Society, Baddiley-Clark Building, Newcastle University, Newcastle upon Tyne, UK
| | - Joanne Gray
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, NE7 7XA UK
| | - Dorothy Coe
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, NE7 7XA UK
| | - Jennifer Wilkinson
- Newcastle Clinical Trials Unit, Newcastle University, 1-4 Claremont Terrace, Newcastle upon Tyne, UK
| | - Sheena Gawler
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, NE7 7XA UK
| | - Lex D. de Jong
- School of Physiotherapy and Exercise Science, Curtin University, Bentley, Western Australia
| | | | - Vincent Deary
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, NE7 7XA UK
| | - Michael Clarke
- Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Steve W Parry
- Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
| |
Collapse
|
36
|
Hackert MQN, van Exel J, Brouwer WBF. Does the ICECAP-O cover the physical, mental and social functioning of older people in the UK? Qual Life Res 2018; 28:761-770. [PMID: 30417206 PMCID: PMC6394518 DOI: 10.1007/s11136-018-2042-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/02/2018] [Indexed: 01/18/2023]
Abstract
PURPOSE The ICEpop CAPability measure for Older people (ICECAP-O) is intended for use in economic evaluations of care services for older people. Although studies support the validity of the ICECAP-O, it does not directly ask older people about their health. This raises questions about its ability to capture health indirectly. Previous studies found mixed results in this aspect, especially for physical health. This study further investigates whether the ICECAP-O indirectly includes health. METHODS Using a cross-sectional design, a sampling agency retrieved data from 516 people aged 70 and older from the UK through an online questionnaire. The overlap in underlying constructs of the ICECAP-O and EQ-5D-5L was assessed using exploratory factor analysis. Spearman correlations and variance analysis were conducted by relating the ICECAP-O to measures of physical, mental and social functioning. RESULTS The ICECAP-O and EQ-5D-5L items loaded on two factors. Their overlap was limited, as four out of five EQ-5D-5L items loaded on the first factor, while four out of five ICECAP-O items loaded on the second. The ICECAP-O correlated highly with (mental and social functioning) health measures, and was able to differentiate between individuals with different scores on these measures. However, the correlation with the Barthel Index, a measure of physical functioning, was moderate. CONCLUSIONS The ICECAP-O may not fully cover all aspects of health. Therefore, a complementary health measure should be used in addition to the ICECAP-O to capture the full benefits of care interventions for older people in economic evaluations.
Collapse
Affiliation(s)
- Mariska Q. N. Hackert
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, P.O. Box 1738, 3000 DR Rotterdam, The Netherlands
| | - Job van Exel
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, P.O. Box 1738, 3000 DR Rotterdam, The Netherlands
- Erasmus School of Economics, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Werner B. F. Brouwer
- Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, P.O. Box 1738, 3000 DR Rotterdam, The Netherlands
| |
Collapse
|
37
|
Milte R, Crotty M, Miller MD, Whitehead C, Ratcliffe J. Quality of life in older adults following a hip fracture: an empirical comparison of the ICECAP-O and the EQ-5D-3 L instruments. Health Qual Life Outcomes 2018; 16:173. [PMID: 30185193 PMCID: PMC6126006 DOI: 10.1186/s12955-018-1005-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 08/29/2018] [Indexed: 02/01/2023] Open
Abstract
Background The purpose of this study was to empirically compare the performance of two generic preference based quality of life instruments, EQ-5D-3 L (with a health and physical function focus) and ICECAP-O (with a wellbeing and capability focus), in a population of older Australians following hip fracture. Methods Older adults or their family member proxies (in cases of severe cognitive impairment) following surgery to repair a fractured hip were invited to take part in this cross sectional study. Inclusion criteria included an age of 60 years or older, confirmed falls-related hip fracture and those receiving current palliative care or consented to other research studies were excluded. 87 participants completed the ICECAP-O and EQ-5D-3 L instruments between one and three weeks post-surgery. Results For the hip fracture population, the mean ICECAP-O score was 0.639 (SD 0.206, n = 82) and the mean EQ-5D-3 L utility score was 0.545 (SD 0.251, n = 87). There was a statistically significant positive correlation between the ICECAP-O and EQ-5D-3 L scores (r = 0.529, p = < 0.001). Conclusions Study findings indicate significant impairments in quality of life post hip fracture. In multiple regression analyses, age and health-related QoL (measured by the EQ-5D) were significant determinants of ICECAP-O scores, while proxy respondent status, age, and capability-related QoL (measured by the ICECAP-O) were significant determinants of EQ-5D scores. Approaches to measuring and valuing quality of life in this sample, should consider the target domains of the intervention in their choice of instrument. Studies aiming to measure the impact of interventions targeting broader domains of wellbeing and QoL should consider including a broader measure of QoL in conjunction with a HRQoL measure.
Collapse
Affiliation(s)
- Rachel Milte
- Nutrition and Dietetics, Flinders University, Adelaide, SA, Australia. .,Institute for Choice, University of South Australia, GPO Box 2471, Adelaide SA, SA, 5001, Australia.
| | - Maria Crotty
- Rehabilitation, Aged, and Extended Care, Flinders University, Adelaide, SA, Australia
| | - Michelle D Miller
- Nutrition and Dietetics, Flinders University, Adelaide, SA, Australia
| | - Craig Whitehead
- Rehabilitation, Aged, and Extended Care, Flinders University, Adelaide, SA, Australia
| | - Julie Ratcliffe
- Institute for Choice, University of South Australia, GPO Box 2471, Adelaide SA, SA, 5001, Australia.,Flinders Clinical Effectiveness, Flinders University, Adelaide, SA, Australia
| |
Collapse
|
38
|
Tang C, Xiong Y, Wu H, Xu J. Adaptation and assessments of the Chinese version of the ICECAP-A measurement. Health Qual Life Outcomes 2018; 16:45. [PMID: 29530092 PMCID: PMC5848585 DOI: 10.1186/s12955-018-0865-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 02/18/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND This study adapts the ICECAP measure for Adults (ICECAP-A) to assess its capacity to measure the quality of life in China for economic evaluation. METHODS Qualitative and quantitative methods were used to translate the ICECAP-A measure for wellbeing, established by the University of Birmingham, UK, to the Chinese cultural context. A focus group discussion solved the appropriateness and wording of the ICECAP attributes in Chinese; and a randomly selected sample of 1000 adults aged over 18 years were online surveyed. We conducted psychometric tests and compared the factors influencing the ICECAP-A measure with those influencing EQ-5D-3 L. RESULTS Members of the focus group discussion agreed that the five attributes of the ICECAP-A measure are sufficient to evaluate wellbeing in China. However, the terms "being settled" and "friendship" were changed to "stability" and "kindness" for the Chinese cultural context. Our results show that the Chinese version of ICECAP-A has good internal consistency with an overall Cronbach's Alpha coefficient of 0.7999. The concurrent validity indicates that ICECAP-A is moderately correlated with EQ-5D-3 L (r ≤ 0.52). CONCLUSIONS The ICECAP-A measure can be adapted to evaluate wellbeing in China, but cultural changes to the wording are necessary. It is a valid measurement of wellbeing and can complement the EQ-5D already used in China. However, further work is still needed to evaluate the sensitivity of the ICECAP-A measure in relation to public health and social care.
Collapse
Affiliation(s)
- Chengxiang Tang
- School of Public Administration, Guangzhou University, Guangzhou, China
| | - Yao Xiong
- School of Public Administration, Southwestern University of Finance and Economics, 555# LiuTai Rd, Wenjiang District, Chengdu, Sichuan, 610072, China
| | - Hongyan Wu
- School of Medicine and Health Management, Guizhou Medical University, Guiyang, China
| | - Judy Xu
- School of Public Administration, Southwestern University of Finance and Economics, 555# LiuTai Rd, Wenjiang District, Chengdu, Sichuan, 610072, China.
| |
Collapse
|
39
|
Botes R, Vermeulen KM, Ranchor AV, Buskens E. Functional health state description and valuation by people aged 65 and over: a pilot study. BMC Geriatr 2018; 18:11. [PMID: 29338685 PMCID: PMC5769375 DOI: 10.1186/s12877-018-0711-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 01/08/2018] [Indexed: 11/10/2022] Open
Abstract
Background Assessing quality of life among the elderly is a complex and multifaceted issue. Elderly people might find valuing and describing their personal experience of quality of life (QoL) demanding and cumbersome. This study therefore sought to determine the feasibility of administering two questionnaires in two samples of elderly people. Methods A preference-based instrument (EQ-5D + C) and a currently achieved functioning questionnaire (CAF) were utilized. Two pilot studies were performed. The first was performed in South Africa (n = 30), designed to test whether elderly respondents could complete and understand the two questionnaires and also to indicate which valuation method, visual analogue scale or time trade off they preferred. A second pilot study was performed in the Netherlands (n = 30), designed to investigate the use of both questionnaires in determining quality of life and health state valuations in a Dutch sample of elderly. Results Seventy percent of the South African respondents indicated that they preferred the visual analogue scale (VAS) method, when compared to the time trade-off (TTO). In both the South African and the Dutch pilot studies, the respondents, with different dependency levels, were able to use both questionnaires to determine health state descriptions and valuations. When ranking the profiles from fewer to more problems, the EQ-5D + C exhibits a gradual downwards trend, with a maximum of 100 and minimum VAS value of 41. The CAF also exhibits a gradual downwards trend, with a maximum of 1.00 and minimum VAS value of 36. Conclusions The results indicate that individuals from different parts of the world are able to complete, describe, and value the questionnaires. It is our recommendation that a comprehensive study should be done, which includes both the EQ-5D + C questionnaire and the CAF questionnaire, since the two questionnaires have proven to be feasible in providing information on quality of life and well-being of elderly people. Electronic supplementary material The online version of this article (10.1186/s12877-018-0711-9) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Riaan Botes
- Department of Epidemiology, University Medical Center Groningen, PO Box 30.001, 9700, RB, Groningen, The Netherlands.
| | - Karin M Vermeulen
- Department of Epidemiology, University Medical Center Groningen, PO Box 30.001, 9700, RB, Groningen, The Netherlands
| | - Adelita V Ranchor
- Department of Health Psychology, University of Groningen, University Medical Center Groningen, PO Box 196, 9700, AD, Groningen, The Netherlands
| | - Erik Buskens
- Department of Epidemiology, University Medical Center Groningen, PO Box 30.001, 9700, RB, Groningen, The Netherlands
| |
Collapse
|
40
|
Botes R, Vermeulen KM, Gerber AM, Ranchor AV, Buskens E. Functioning and quality of life in Dutch oldest old with diverse levels of dependency. Patient Prefer Adherence 2018; 12:2187-2196. [PMID: 30410314 PMCID: PMC6199227 DOI: 10.2147/ppa.s175388] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Frequently, a questionnaire like the EQ-5D is applied to investigate elderly health-related quality of life (HRQoL), but current literature suggests that inputs that go beyond these traditional health aspects might be of importance. The capability approach is a different method, which integrates several non-health-related factors to define the well-being of the oldest old. OBJECTIVE We propose to investigate the differences in oldest old functionings and quality of life (QoL), given different levels of dependency, using both a utility-based (EQ-5D+C) and capability-based (Currently Achieved Functioning) questionnaire. METHODS We interviewed 99 Dutch elderly, living in the Groningen, Veendam, and Hoogeveen areas. The average age of the elderly was 80 years, who were living independently, still looking after themselves; living semi-dependently with moderate care; or living in a nursing home requiring consistent care. RESULTS The utility score for the dependent group is the lowest of all three groups, across the diseases investigated in this study. The respective average utility scores calculated for the dependent, semi-dependent, and independent subgroups were 0.56 (SD ±0.10); 0.84 (SD ±0.11), and 0.69 (SD ±0.13). Mobility and pain were reported to be the major domains where problems appeared across the three groups. Additionally, dependent elderly experience deficits in the role and control functionings while the other two subgroups experience deficits in pleasure and security. CONCLUSION The results suggest that it is important to take note of the achievability of functionings and HRQoL, in addition to care dependency, to obtain QoL and well-being outcomes of the oldest old.
Collapse
Affiliation(s)
- Riaan Botes
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands,
| | - Karin M Vermeulen
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands,
| | - Antonie M Gerber
- Department of Basic Medical Sciences (G25), University of the Free State, Basic Medical Sciences, Bloemfontein, South Africa
| | - Adelita V Ranchor
- Department of Health Psychology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Erik Buskens
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands,
| |
Collapse
|
41
|
Franklin M, Payne K, Elliott RA. Quantifying the Relationship between Capability and Health in Older People: Can't Map, Won't Map. Med Decis Making 2017; 38:79-94. [PMID: 29056069 DOI: 10.1177/0272989x17732975] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Intuitively, health and capability are distinct but linked concepts. This study aimed to quantify the link between a measure of health status (EQ-5D-3L) and capability (ICECAP-O) using regression-based methods. METHODS EQ-5D-3L and ICECAP-O data were collected from a sample of older people ( n = 584), aged over 65 years, requiring a hospital visit and/or care home resident, and recruited to one of 3 studies forming the Medical Crisis in Older People (MCOP) program in England. The link of EQ-5D-3L with 1) ICECAP-O tariff scores were estimated using ordinary least squares (OLS) or censored least absolute deviation (CLAD) regression models; and 2) ICECAP-O domain scores was estimated using multinomial logistic (MNL) regression. Mean absolute error (MAE), root mean squared error (RMSE), absolute difference (AD) between mean observed and estimated values, and the R2 statistic were used to judge model performance. RESULTS In this sample of older people ( n = 584), higher scores on the EQ-5D-3L were shown to be linked with higher ICECAP-O scores when using linear regression. An OLS-regression model was identified to be the best performing model with the lowest error statistics (AD = 0.0000; MAE = 0.1208; MSE = 0.1626) and highest goodness of fit ( R2 = 0.3532); model performance was poor when predicting the lower ICECAP-O tariff scores. The three domains of the EQ-5D-3L showing a statistically significant quantifiable link with the ICECAP-O tariff score were self-care, usual activities, and anxiety/depression. CONCLUSION A quantifiable, but weak, link between health (EQ-5D-3L) and capability (ICECAP-O) was identified. The findings from this study add further support that the ICECAP-O is providing complimentary information to the EQ-5D-3L. Mapping between the 2 measures is not advisable and the measures should not be used as direct substitutes to capture the impact of interventions in economic evaluations.
Collapse
Affiliation(s)
- Matthew Franklin
- Health Economics and Decision Science (HEDS).,School of Health and Related Research (ScHARR).,University of Sheffield, Sheffield, UK (MF)
| | - Katherine Payne
- Manchester Centre for Health Economics, The University of Manchester, Manchester, UK (KP, RAE)
| | - Rachel A Elliott
- Manchester Centre for Health Economics, The University of Manchester, Manchester, UK (KP, RAE)
| |
Collapse
|
42
|
Hackert MQN, Exel JV, Brouwer WBF. Valid Outcome Measures in Care for Older People: Comparing the ASCOT and the ICECAP-O. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2017; 20:936-944. [PMID: 28712623 DOI: 10.1016/j.jval.2017.03.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 03/08/2017] [Accepted: 03/11/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Limited health care budgets and population aging result in a need to compare care services on their benefits and costs. Because services for older people often aim to improve multiple life aspects, valid measures are needed to examine their benefits on individuals' health and well-being simultaneously. Two measures may meet this end: the Adult Social Care Outcomes Toolkit (ASCOT) and the ICEpop CAPability measure for Older people (ICECAP-O). OBJECTIVES To compare the validity of both measures, the ASCOT and the ICECAP-O. METHODS A sampling agency gathered cross-sectional data in May 2015. Using exploratory factor analysis, the underlying factor structure of the ASCOT and the ICECAP-O was examined for the first time. Convergent and discriminant validity in relation to health measures (five-level EuroQol five-dimensional questionnaire, EuroQol Visual Analogue Scale, Barthel Index, and Geriatric Depression Scale-15) and well-being measures (Older People's Quality of Life Questionnaire-13, Satisfaction with Life Scale, and Cantril's Ladder) were tested using Spearman rank correlations and variance analysis. RESULTS The ASCOT and the ICECAP-O tapped into a shared factor, whereas both measures also loaded on two separate factors. The ASCOT and the ICECAP-O correlated highly with the health and well-being measures, but the correlation with the physical health measure Barthel Index was moderate. Both measures discriminated between subgroups of respondents. CONCLUSIONS The ASCOT and the ICECAP-O seem promising measures to evaluate well-being among older people, whereby the ASCOT seems more specific to social care-related outcomes. The performance of both measures in other respondent groups and countries, and their relation to physical health, need to be further examined before their use in economic evaluations can be recommended.
Collapse
Affiliation(s)
- Mariska Q N Hackert
- Institute of Health Policy and Management, Erasmus University Rotterdam, Rotterdam, The Netherlands.
| | - Job van Exel
- Institute of Health Policy and Management, Erasmus University Rotterdam, Rotterdam, The Netherlands; Erasmus School of Economics, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Werner B F Brouwer
- Institute of Health Policy and Management, Erasmus University Rotterdam, Rotterdam, The Netherlands
| |
Collapse
|
43
|
Engel L, Mortimer D, Bryan S, Lear SA, Whitehurst DGT. An Investigation of the Overlap Between the ICECAP-A and Five Preference-Based Health-Related Quality of Life Instruments. PHARMACOECONOMICS 2017; 35:741-753. [PMID: 28342112 DOI: 10.1007/s40273-017-0491-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
BACKGROUND The ICEpop CAPability measure for Adults (ICECAP-A) is a measure of capability wellbeing developed for use in economic evaluations. It was designed to overcome perceived limitations associated with existing preference-based instruments, where the explicit focus on health-related aspects of quality of life may result in the failure to capture fully the broader benefits of interventions and treatments that go beyond health. The aim of this study was to investigate the extent to which preference-based health-related quality of life (HRQoL) instruments are able to capture aspects of capability wellbeing, as measured by the ICECAP-A. METHODS Using data from the Multi Instrument Comparison project, pairwise exploratory factor analyses were conducted to compare the ICECAP-A with five preference-based HRQoL instruments [15D, Assessment of Quality of Life 8-dimension (AQoL-8D), EQ-5D-5L, Health Utilities Index Mark 3 (HUI-3), and SF-6D]. RESULTS Data from 6756 individuals were used in the analyses. The ICECAP-A provides information above that garnered from most commonly used preference-based HRQoL instruments. The exception was the AQoL-8D; more common factors were identified between the ICECAP-A and AQoL-8D compared with the other pairwise analyses. CONCLUSION Further investigations are needed to explore the extent and potential implications of 'double counting' when applying the ICECAP-A alongside health-related preference-based instruments.
Collapse
Affiliation(s)
- Lidia Engel
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada
- Centre for Clinical Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada
| | - Duncan Mortimer
- Faculty of Business and Economics, Centre for Health Economics, Monash University, Clayton, VIC, Australia
| | - Stirling Bryan
- Centre for Clinical Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Scott A Lear
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada
- Division of Cardiology, Providence Health Care, Vancouver, BC, Canada
| | - David G T Whitehurst
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada.
- Centre for Clinical Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada.
- International Collaboration on Repair Discoveries, University of British Columbia, Vancouver, BC, Canada.
| |
Collapse
|
44
|
Mitchell PM, Venkatapuram S, Richardson J, Iezzi A, Coast J. Are Quality-Adjusted Life Years a Good Proxy Measure of Individual Capabilities? PHARMACOECONOMICS 2017; 35:637-646. [PMID: 28238151 PMCID: PMC5427089 DOI: 10.1007/s40273-017-0495-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
BACKGROUND There is a debate in the health economics literature concerning the most appropriate way of applying Amartya Sen's capability approach in economic evaluation studies. Some suggest that quality-adjusted life years (QALYs) alone are adequate while others argue that this approach is too narrow and that direct measures of capability wellbeing provide a more extensive application of Sen's paradigm. OBJECTIVE This paper empirically explores whether QALYs provide a good proxy for individual capabilities. METHODS Data is taken from a multinational cross-sectional survey of individuals with seven health conditions (asthma, arthritis, cancer, depression, diabetes, hearing loss, heart disease) and a healthy population. Each individual completed the ICECAP-A measure of capability wellbeing for adults and six health utility instruments that are used to generate QALYs, including EQ-5D and SF-6D. Primary analysis examines how well health utility instruments can explain variation in the ICECAP-A using ordinary least squares regression. RESULTS The findings show that all seven health conditions have a negative association on overall capability as measured by the ICECAP-A index. Inclusion of health utility instruments into separate regressions improves the predictive power of capability but on average, explains less than half of the variation in capability wellbeing. Individuals with arthritis appear to be less inhibited in terms of capability losses when accounting for health utility, yet those who have depression record significant reductions in capability relative to the healthy population even after accounting for the most commonly used health utility instruments. CONCLUSION The study therefore casts doubt on the ability of QALYs to act as a reliable proxy measure of individuals' capability.
Collapse
Affiliation(s)
- Paul Mark Mitchell
- Health Economics at Bristol (HEB), School of Social and Community Medicine, University of Bristol, Bristol, UK.
- The National Institute for Health Research Collaboration for Leadership in Applied Health Research and Care West (NIHR CLAHRC West), University Hospitals Bristol NHS Foundation Trust, Bristol, UK.
- UK Renal Registry, Southmead Hospital, Bristol, UK.
| | - Sridhar Venkatapuram
- Department of Global Health and Social Medicine, King's College London, London, UK
| | - Jeff Richardson
- Centre for Health Economics, Monash University, Melbourne, VIC, Australia
| | - Angelo Iezzi
- Centre for Health Economics, Monash University, Melbourne, VIC, Australia
| | - Joanna Coast
- Health Economics at Bristol (HEB), School of Social and Community Medicine, University of Bristol, Bristol, UK
- The National Institute for Health Research Collaboration for Leadership in Applied Health Research and Care West (NIHR CLAHRC West), University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| |
Collapse
|
45
|
Mitchell PM, Al-Janabi H, Byford S, Kuyken W, Richardson J, Iezzi A, Coast J. Assessing the validity of the ICECAP-A capability measure for adults with depression. BMC Psychiatry 2017; 17:46. [PMID: 28148234 PMCID: PMC5289054 DOI: 10.1186/s12888-017-1211-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 01/19/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Effectiveness and cost-effectiveness are increasingly important considerations in determining which mental health services are funded. Questions have been raised concerning the validity of generic health status instruments used in economic evaluation for assessing mental health problems such as depression; measuring capability wellbeing offers a possible alternative. The aim of this study is to assess the validity of the ICECAP-A capability instrument for individuals with depression. METHODS Hypotheses were developed using concept mapping. Validity tests and multivariable regression analysis were applied to data from a cross-sectional dataset to assess the performance of ICECAP-A in individuals who reported having a primary condition of depression. The ICECAP-A was collected alongside instruments used to measure: 1. depression using the depression scale of the Depression, Anxiety and Stress Scale (DASS-D of DASS-21); 2. mental health using the Kessler Psychological Distress Scale (K10); 3. generic health status using a common measure collected for use in economic evaluations, the five level version of EQ-5D (EQ-5D-5L). RESULTS Hypothesised associations between the ICECAP-A (items and index scores) and depression constructs were fully supported in statistical tests. In the multivariable analysis, instruments designed specifically to measure depression and mental health explained a greater proportion of the variation in ICECAP-A than the EQ-5D-5L. CONCLUSION The ICECAP-A instrument appears to be suitable for assessing outcome in adults with depression for resource allocation purposes. Further research is required on its responsiveness and use in economic evaluation. Using a capability perspective when assessing cost-effectiveness could potentially re-orientate resource provision across physical and mental health care services.
Collapse
Affiliation(s)
- Paul Mark Mitchell
- 0000 0004 1936 7603grid.5337.2School of Social and Community Medicine, University of Bristol, Bristol, UK ,0000 0004 0380 7336grid.410421.2The National Institute for Health Research Collaboration for Leadership in Applied Health Research and Care West (NIHR CLAHRC West), University Hospitals Bristol NHS Foundation Trust, Bristol, UK ,0000 0004 0417 1173grid.416201.0UK Renal Registry, Southmead Hospital Bristol, Bristol, UK
| | - Hareth Al-Janabi
- Health Economics Unit, Institute of Applied Health Research, University of Birmingham, Birmingham, UK.
| | - Sarah Byford
- 0000 0001 2322 6764grid.13097.3cKing’s Health Economics, King’s College London, London, UK
| | - Willem Kuyken
- 0000 0004 1936 8948grid.4991.5Department of Psychiatry, University of Oxford, Oxford, UK
| | - Jeff Richardson
- 0000 0004 1936 7857grid.1002.3Centre for Health Economics, Monash University, Melbourne, Australia
| | - Angelo Iezzi
- 0000 0004 1936 7857grid.1002.3Centre for Health Economics, Monash University, Melbourne, Australia
| | - Joanna Coast
- 0000 0004 1936 7603grid.5337.2School of Social and Community Medicine, University of Bristol, Bristol, UK ,0000 0004 0380 7336grid.410421.2The National Institute for Health Research Collaboration for Leadership in Applied Health Research and Care West (NIHR CLAHRC West), University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| |
Collapse
|
46
|
Sarabia-Cobo CM, Parás-Bravo P, Amo-Setién FJ, Alconero-Camarero AR, Sáenz-Jalón M, Torres-Manrique B, Sarabia-Lavín R, Fernández-Rodríguez A, Silio-García T, Fernández-Peña R, Paz-Zulueta M, Santibáñez-Margüello M. Validation of the Spanish Version of the ICECAP-O for Nursing Home Residents with Dementia. PLoS One 2017; 12:e0169354. [PMID: 28068375 PMCID: PMC5222189 DOI: 10.1371/journal.pone.0169354] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 12/15/2016] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Measurement of health-related quality of life (HRQoL) is important for a chronic disease, such as dementia, which impairs the quality of life of affected patients in addition to their length of life. This is important in the context of economic evaluations when interventions do not (only) affect HRQoL and these other factors also affect overall quality of life. OBJECTIVE To validate the Spanish translation of the ICECAP-O's capability to measure Health-related quality of life in elderly with dementia who live in nursing homes. METHOD Cross-sectional study. For 217 residents living in 8 Spanish nursing homes, questionnaires were completed by nursing professionals serving as proxy respondents. We analyzed the internal consistency and other psychometric properties. We investigated the convergent validity of the ICECAP-O with other HRQoL instruments, the EQ-5D extended with a cognitive dimension (EQ-5D+C), the Alzheimer's Disease Related Quality of Life (ADRQL) measures, and the Barthel Index measure of activities of daily living (ADL). RESULTS The ICECAP-O presents satisfactory internal consistency (alpha 0.820). The factorial analysis indicated a structure of five principal dimensions that explain 66.57% of the total variance. Convergent validity between the ICECAP-O, EQ-5D+C, ADRQL, and Barthel Index scores was moderate to good (with correlations of 0.62, 0.61, and 0.68, respectively), but differed between dimensions of the instruments. Discriminant validity was confirmed by finding differences in ICECAP-O scores between subgroups based on ADL scores (0.70 low, 0.59 medium, and 0.39 high level care), dementia severity (0.72 mild, 0.63 medium, and 0.50 severe), and ages (0.59 below 75 years and 0.84 above 75 years). CONCLUSIONS This study presented the first use of a Spanish version of the ICECAP-O. The results indicate that the ICECAP-O appears to be a reliable Health-related quality of life measurement instrument showing good convergent and discriminant validity for people with dementia.
Collapse
|
47
|
Davis JC, Best JR, Dian L, Khan KM, Hsu CL, Chan W, Cheung W, Liu-Ambrose T. Are the EQ-5D-3L and the ICECAP-O responsive among older adults with impaired mobility? Evidence from the Vancouver Falls Prevention Cohort Study. Qual Life Res 2016; 26:737-747. [DOI: 10.1007/s11136-016-1487-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2016] [Indexed: 01/23/2023]
|
48
|
Huter K, Kocot E, Kissimova-Skarbek K, Dubas-Jakóbczyk K, Rothgang H. Economic evaluation of health promotion for older people-methodological problems and challenges. BMC Health Serv Res 2016; 16 Suppl 5:328. [PMID: 27609155 PMCID: PMC5016726 DOI: 10.1186/s12913-016-1519-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The support of health promotion activities for older people gains societal relevance in terms of enhancing the health and well-being of older people with a view to the efficient use of financial resources in the healthcare sector. Health economic evaluations have become an important instrument to support decision-making processes in many countries. Sound evidence on the cost-effectiveness of health promotion activities would encourage support for the implementation of health promotion activities for older people. This debate article discusses to what extent economic evaluation techniques are appropriate to support decision makers in the allocation of resources regarding health promotion activities for older people. We address the problem that the economic evaluation of these interventions is hampered by methodological obstacles that limit comparability, e.g. with economic evaluations of curative measures. Our central objective is to describe and discuss the specific problems and challenges entailed in the economic evaluation of health promotion activities especially for older people with regard to their usefulness for informing decision making processes. DISCUSSION Beyond general problems concerning the economic evaluation of health promotion, our discussion focusses on problems that pertain to the analysis of cost and outcomes of health promotion interventions for older people. With regard to costs these are general problems of economic evaluations, namely the actual implementation of a societal perspective, the appropriate measurement and valuation of informal caregiver time, the measurement and valuation of productivity costs and costs incurred in added years of life. The main problems concerning the identification and measurement of outcomes are related to the identification of outcome parameters that, firstly, adequately reflect the broad effects of health promotion interventions, especially social benefits that gain importance for older people, and secondly, ensure a comparability of effects across different age groups. In particular, the limitations of the widely used QALY for older people are discussed and recently developed alternatives are presented. CONCLUSIONS The key conclusion of the article is that a comparison of the effects of different health promotion initiatives between different age groups by means of economic evaluation is not recommendable. Taking into account the complex outcomes of health promotion interventions it has to be accepted that the outcomes of these interventions will often not be comparable with clinical interventions and have to be assessed differently.
Collapse
Affiliation(s)
- Kai Huter
- SOCIUM - Research Center on Inequality and Social Policy, University of Bremen, Mary-Somerville-Straße 5, 28359 Bremen, Germany
- High-profile area Health Sciences, University of Bremen, Bremen, Germany
| | - Ewa Kocot
- Health Economics and Social Security Department, Institute of Public Health, Jagiellonian University Medical College, Grzegórzecka 20 St., 30-351 Crakow, Poland
| | - Katarzyna Kissimova-Skarbek
- Health Economics and Social Security Department, Institute of Public Health, Jagiellonian University Medical College, Grzegórzecka 20 St., 30-351 Crakow, Poland
| | - Katarzyna Dubas-Jakóbczyk
- Health Economics and Social Security Department, Institute of Public Health, Jagiellonian University Medical College, Grzegórzecka 20 St., 30-351 Crakow, Poland
| | - Heinz Rothgang
- SOCIUM - Research Center on Inequality and Social Policy, University of Bremen, Mary-Somerville-Straße 5, 28359 Bremen, Germany
- High-profile area Health Sciences, University of Bremen, Bremen, Germany
| |
Collapse
|
49
|
Coast J, Kinghorn P, Mitchell P. The development of capability measures in health economics: opportunities, challenges and progress. PATIENT-PATIENT CENTERED OUTCOMES RESEARCH 2016; 8:119-26. [PMID: 25074355 DOI: 10.1007/s40271-014-0080-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Recent years have seen increased engagement amongst health economists with the capability approach developed by Amartya Sen and others. This paper focuses on the capability approach in relation to the evaluative space used for analysis within health economics. It considers the opportunities that the capability approach offers in extending this space, but also the methodological challenges associated with moving from the theoretical concepts to practical empirical applications. The paper then examines three 'families' of measures, Oxford Capability instruments (OxCap), Adult Social Care Outcome Toolkit (ASCOT) and ICEpop CAPability (ICECAP), in terms of the methodological choices made in each case. The paper concludes by discussing some of the broader issues involved in making use of the capability approach in health economics. It also suggests that continued exploration of the impact of different methodological choices will be important in moving forward.
Collapse
Affiliation(s)
- Joanna Coast
- Health Economics Unit, School of Health and Population Sciences, University of Birmingham, Public Health Building, Birmingham, B15 2TT, UK,
| | | | | |
Collapse
|
50
|
Ratcliffe J, Lancsar E, Flint T, Kaambwa B, Walker R, Lewin G, Luszcz M, Cameron ID. Does one size fit all? Assessing the preferences of older and younger people for attributes of quality of life. Qual Life Res 2016; 26:299-309. [PMID: 27553968 DOI: 10.1007/s11136-016-1391-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2016] [Indexed: 11/30/2022]
Abstract
PURPOSE To systematically compare, via ranking and best worst tasks, the relative importance of key dimensions of quality of life for younger and older people. METHODS A web-based survey was developed for administration to two Australia-wide community-based samples comprising younger people aged 18-64 years and older people aged 65 years and above. Respondents were asked to rank 12 quality of life dimensions. Respondents also completed a successive best worst task using the same 12 quality of life dimensions. RESULTS The relative importance of the quality of life dimensions differed for younger and older person samples. For older people, the ability to be independent and to have control over their daily lives were particularly important for their overall quality of life whereas for younger people, mental health was considered most important. CONCLUSIONS Many interventions accessed by older people in geriatric medicine and aged care sectors have a broader impact upon quality of life beyond health status. The findings from this study indicate that a focus on broader aspects of quality of life may also be consistent with the preferences of older people themselves as to what constitutes quality of life from their perspective.
Collapse
Affiliation(s)
- Julie Ratcliffe
- Flinders Health Economics Group, Flinders University, Bedford Park, SA, Australia.
| | - Emily Lancsar
- Centre for Health Economics, Monash Business School, Monash University, Melbourne, VIC, Australia
| | - Thomas Flint
- Flinders Health Economics Group, Flinders University, Bedford Park, SA, Australia
| | - Billingsley Kaambwa
- Flinders Health Economics Group, Flinders University, Bedford Park, SA, Australia
| | - Ruth Walker
- Disability and Community Inclusion Unit, Flinders University, Bedford Park, SA, Australia
| | - Gill Lewin
- School of Nursing and Midwifery, Curtin University, Bentley, WA, Australia
| | - Mary Luszcz
- School of Psychology, Flinders University, Bedford Park, SA, Australia
| | - Ian D Cameron
- John Walsh Centre for Rehabilitation Research, Kolling Institute, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| |
Collapse
|