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Senanayake S, Uchil R, Sharma P, Parsonage W, Kularatna S. Mapping Kansas City cardiomyopathy, Seattle Angina, and minnesota living with heart failure to the MacNew-7D in patients with heart disease. Qual Life Res 2024:10.1007/s11136-024-03676-2. [PMID: 38839680 DOI: 10.1007/s11136-024-03676-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2024] [Indexed: 06/07/2024]
Abstract
INTRODUCTION The Kansas City Cardiomyopathy Questionnaire (KCCQ), Seattle Angina Questionnaire (SAQ), and Minnesota Living with Heart Failure Questionnaire (MLHFQ) are widely used non-preference-based instruments that measure health-related quality of life (QOL) in people with heart disease. However, currently it is not possible to estimate quality-adjusted life-years (QALYs) for economic evaluation using these instruments as the summary scores produced are not preference-based. The MacNew-7D is a heart disease-specific preference-based instrument. This study provides different mapping algorithms for allocating utility scores to KCCQ, MLHFQ, and SAQ from MacNew-7D to calculate QALYs for economic evaluations. METHODS The study included 493 participants with heart failure or angina who completed the KCCQ, MLHFQ, SAQ, and MacNew-7D questionnaires. Regression techniques, namely, Gamma Generalized Linear Model (GLM), Bayesian GLM, Linear regression with stepwise selection and Random Forest were used to develop direct mapping algorithms. Cross-validation was employed due to the absence of an external validation dataset. The study followed the Mapping onto Preference-based measures reporting Standards checklist. RESULTS The best models to predict MacNew-7D utility scores were determined using KCCQ, MLHFQ, and SAQ item and domain scores. Random Forest performed well for item scores for all questionnaires and domain score for KCCQ, while Bayesian GLM and Linear Regression were best for MLHFQ and SAQ domain scores. However, models tended to over-predict severe health states. CONCLUSION The three cardiac-specific non-preference-based QOL instruments can be mapped onto MacNew-7D utilities with good predictive accuracy using both direct response mapping techniques. The reported mapping algorithms may facilitate estimation of health utility for economic evaluations that have used these QOL instruments.
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Affiliation(s)
- Sameera Senanayake
- Health Services and Systems Research, Duke-NUS Medical School, Singapore, Singapore
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, QLD, 4059, Australia
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
| | - Rithika Uchil
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, QLD, 4059, Australia
| | - Pakhi Sharma
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, QLD, 4059, Australia.
| | - William Parsonage
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, QLD, 4059, Australia
- Royal Brisbane and Women's Hospital, Metro North Health, Brisbane, QLD, Australia
| | - Sanjeewa Kularatna
- Health Services and Systems Research, Duke-NUS Medical School, Singapore, Singapore
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, QLD, 4059, Australia
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
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Xie S, Wu J, Chen G. Comparative performance and mapping algorithms between EQ-5D-5L and SF-6Dv2 among the Chinese general population. THE EUROPEAN JOURNAL OF HEALTH ECONOMICS : HEPAC : HEALTH ECONOMICS IN PREVENTION AND CARE 2024; 25:7-19. [PMID: 36709458 DOI: 10.1007/s10198-023-01566-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 01/11/2023] [Indexed: 06/18/2023]
Abstract
OBJECTIVES To explore the comparative performance and develop the mapping algorithms between EQ-5D-5L and SF-6Dv2 in China. METHODS Respondents recruited from the Chinese general population completed both EQ-5D-5L and SF-6Dv2 during face-to-face interviews. Ceiling/floor effects were reported. Discriminative validity in self-reported chronic conditions was investigated using the effect sizes (ES). Test-retest reliability was evaluated using intra-class correlation coefficient (ICC) and Bland-Altman plots in a subsample. Correlation and absolute agreements between the two measures were estimated with Spearman's rank correlation coefficient and ICC, respectively. Ordinary least squares (OLS), generalized linear model, Tobit model, and robust MM-estimator were explored to estimate mapping equations between EQ-5D-5L and SF-6Dv2. RESULTS 3320 respondents (50.3% males; age 18-90 years) were recruited. 51.1% and 12.2% of respondents reported no problems on all EQ-5D-5L and SF-6Dv2 dimensions, respectively. The mean EQ-5D-5L utility was higher than SF-6Dv2 (0.947 vs. 0.827, p < 0.001). Utilities were significantly different across all chronic conditions groups for both measures. The mean absolute difference of utilities between the two tests for EQ-5D-5L was smaller (0.033 vs. 0.043) than SF-6Dv2, with a slightly higher ICC (0.859 vs. 0.827). Fair agreement (ICC = 0.582) was observed in the utilities between the two measures. Mapping algorithms generated by the OLS models performed the best according to the goodness-of-fit indicators. CONCLUSIONS Both measures showed comparable discriminative validity. Systematic differences in utilities were found, and on average, the EQ-5D-5L generates higher values than the SF-6Dv2. Mapping algorithms between the EQ-5D-5L and SF-6Dv2 are reported to enable transformations between these two measures in China.
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Affiliation(s)
- Shitong Xie
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
| | - Jing Wu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.
- Center for Social Science Survey and Data, Tianjin University, Tianjin, China.
| | - Gang Chen
- Centre for Health Economics, Monash Business School, Monash University, Melbourne, VIC, Australia.
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Ho KKW, Chau WW, Lau LCM, Ng JP, Chiu KH, Ong MTY. Long-term survivorship and results in lower limb arthroplasty: a registry-based comparison study. BMC Musculoskelet Disord 2023; 24:307. [PMID: 37076860 PMCID: PMC10113734 DOI: 10.1186/s12891-023-06398-7] [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: 12/29/2022] [Accepted: 04/04/2023] [Indexed: 04/21/2023] Open
Abstract
INTRODUCTION Popularity of joint replacement surgery due to ever aging population surges the demand for a proper national joint registry. Our Chinese University of Hong Kong - Prince of Wales Hospital (CUHK-PWH) joint registry has passed the 30th year. The aims of this study are 1) summarize our territory-wide joint registry which has passed the 30th year since establishment and 2) compare our statistics with other major joint registries. METHODS Part 1 was to review the CUHK-PWH registry. Demographic characteristics of our patients who underwent knee and hip replacements had been summarized. Part 2 was a series of comparisons with registries from Sweden, UK, Australia and New Zealand. RESULTS CUHK-PWH registry captured 2889 primary total knee replacements (TKR) (110 (3.81%) revision) and 879 primary total hip replacements (THR) (107 (12.17%) revision). Median Surgery time of TKR was shorter than THR. Clinical outcome scores were much improved after surgery in both. Uncemented of hybrid in TKR were most popular in Australia (33.4%) and 40% in Sweden and UK. More than half of TKR and THR patients showed the highest percentage with ASA grade 2. New Zealand reflected the best cumulative percentage survival 20 years after surgery of 92.2%, 76.0%, 84.2% survivorship 20 years after TKR, unicompartmental knee replacement (UKR) and Hip. CONCLUSION A worldwide accepted patient-reported outcome measure (PROM) is recommended to develop to make comparisons among registries and studies feasible. Completeness of registry data is important and useful to improve surgical performance through data comparisons from different regions. Funding from government on sustaining registries is reflected. Registries from Asian countries have yet to be grown and reported.
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Affiliation(s)
- Kevin Ki-Wai Ho
- Department of Orthopaedics and Traumatology, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China.
| | - Wai-Wang Chau
- Department of Orthopaedics and Traumatology, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
| | - Lawrence Chun-Man Lau
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, Hong Kong SAR, China
| | - Jonathan Patrick Ng
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, Hong Kong SAR, China
| | - Kwok-Hing Chiu
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, Hong Kong SAR, China
| | - Michael Tim-Yun Ong
- Department of Orthopaedics and Traumatology, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
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