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Kimpe E, Parmentier R, Busschaert SL, De Mey J, Barbé K, De Ridder M, Putman K. Quantifying societal burden of radiation-induced small bowel toxicity in patients with rectal cancer. Front Oncol 2024; 14:1340081. [PMID: 39040451 PMCID: PMC11260702 DOI: 10.3389/fonc.2024.1340081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 06/18/2024] [Indexed: 07/24/2024] Open
Abstract
Introduction Advancements in rectal cancer (RC) treatment not only led to an increase in lives saved but also improved quality of life (QoL). Notwithstanding these benefits, RC treatment comes at the price of gastrointestinal morbidity in many patients. Health economic modelling poses an opportunity to explore the societal burden of such side-effects. This study aims to quantify radiation-induced late small bowel (SB) toxicity in survivors of RC for Three-Dimensional Conformal Radiation Therapy (3D-CRT), Intensity Modulated Radiation Therapy (IMRT) and Intensity Modulated Radiation Therapy - Image Guided Radiation Therapy (IMRT/IGRT). Materials and methods Materials and A model-based health economic evaluation was performed. The theoretical cohort consists of a case-mix of survivors of RC aged 25-99 years according to Belgian age-specific incidence rates. A societal perspective was adopted. The base case analysis was complemented with one-way deterministic analyses, deterministic scenario analyses and probabilistic sensitivity analysis (1,000 iterations). Results were presented as mean lifetime incremental cost (€) and utility (QALYs) per patient. Results The analyses showed that the use of innovative radiotherapy (RT) improves lifetime QoL in survivors of RC by 0.11 QALYs and 0.05 QALYs by preferring IMRT/IGRT and IMRT over 3D-CRT, respectively. The use of IMRT/IGRT and IMRT results in an incremental cost-saving of €3,820 and €1,863 per patient, solely by radiation-induced SB toxicity, compared to 3D-CRT. Discussion and conclusion It is important to consider late toxicity effects in decisions regarding investments and reimbursement as our analysis highlighted the potential long-term cost-savings and improved QoL of novel RT techniques in patients with rectal cancer.
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Affiliation(s)
- Eva Kimpe
- Interuniversity Centre for Health Economics Research (I-CHER), Department of Public Health, Vrije Universiteit Brussel, Brussels, Belgium
| | - Riet Parmentier
- Interuniversity Centre for Health Economics Research (I-CHER), Department of Public Health, Vrije Universiteit Brussel, Brussels, Belgium
| | - Sara-Lise Busschaert
- Interuniversity Centre for Health Economics Research (I-CHER), Department of Public Health, Vrije Universiteit Brussel, Brussels, Belgium
| | - Johan De Mey
- Department of Radiology, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kurt Barbé
- Biostatistics and Medical Informatics Research Group (BISI), Department of Public Health, Vrije Universiteit Brussel, Brussels, Belgium
| | - Mark De Ridder
- Department of Radiotherapy, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Koen Putman
- Interuniversity Centre for Health Economics Research (I-CHER), Department of Public Health, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Radiotherapy, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium
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Jiang L, Zhou H, Yang Q, Luo X, Huang D. Development of algorithms to estimate the EQ-5D-5L from the FACT-L in patients with lung cancer: a mapping study. Qual Life Res 2024; 33:805-816. [PMID: 38148367 DOI: 10.1007/s11136-023-03567-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2023] [Indexed: 12/28/2023]
Abstract
OBJECTIVE This study aimed to develop a mapping algorithm to evaluate the EQ-5D-5L according to the FACT-L when the EQ-5D-5L is not available. METHODS EQ-5D-5L and FACT-L data were collected from patients with lung cancer in Departments of Thoracic Surgery, Medical Oncology, Radiation Oncology, Sichuan Cancer Hospital. We used the ordinary least squares model (OLS), Tobit model (Tobit), two-part model (TPM), beta mixture regression (BM), and censored least absolute deviation model (CLAD) to map the results of the FACT-L according to EQ-5D-5L scores. To establish these models, the total score, dimension scores, squared items, and interaction items were introduced. Performance metrics including Adjusted R2, root mean square error (RMSE), and mean absolute error (MAE) were used to select the optimized model. RESULTS The model with the best mapping performance was the BM model (BETAMIX4) with the PWB (physical well-being) dimension, FWB (functional well-being) dimension, the squared term of the PWB dimension, and the squared term of the FWB dimension as covariates. The final prediction metrics were Adjusted R2 = 0.695, RMSE = 0.206, and MAE = 0.109. Fivefold cross-validation (CV) results also demonstrated that the BM model had the best mapping power. CONCLUSIONS This study developed an optimized mapping algorithm to predict the utility index from the FACT-L to the EQ-5D-5L, which provides an effective alternative reference for EQ-5D-5L estimation when the preference-based health utility values were unavailable.
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Affiliation(s)
- Longlin Jiang
- Department of Thoracic Surgery Sichuan Clinical Research Center for Cancer Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Hong Zhou
- Department of Thoracic Surgery Sichuan Clinical Research Center for Cancer Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Qing Yang
- Nursing Department, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China.
| | - Xi Luo
- Department of Thoracic Surgery Sichuan Clinical Research Center for Cancer Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Deyu Huang
- School of Nursing, Chengdu Medical College, Chengdu, China
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Huang D, Zeng D, Tang Y, Jiang L, Yang Q. Mapping the EORTC QLQ-C30 and QLQ H&N35 to the EQ-5D-5L and SF-6D for papillary thyroid carcinoma. Qual Life Res 2024; 33:491-505. [PMID: 37938402 DOI: 10.1007/s11136-023-03540-9] [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: 10/06/2023] [Indexed: 11/09/2023]
Abstract
PURPOSE Empirical evidence for the EORTC QLQ C30 scale in thyroid cancer mapping algorithms has not been found in China, which limits the cost-utility analysis of patients with papillary thyroid carcinoma (PTC) population. We developed mapping algorithms that use the EORTC QLQ-C30 and QLQ H&N35 to predict EQ-5D-5L and SF-6D health utility scores for PTC patients. METHODS Data from 1050 Chinese PTC patients who completed the EORTC QLQ-C30, QLQ H&N35, EQ-5D-5L and SF-6D instruments were collected. Direct mapping (OLS, Tobit, Betamix) and indirect mapping functions (Order Probit) were used to estimate algorithms. The goodness-of-fit of mapping performance was assessed by MAE, RMSE, AIC, BIC, AE, and ICC. A fivefold cross-validation and random sample validation approach were used to test the stability of the models. RESULTS The mean EQ-5D-5L and SF-6D utility scores were 0.8704 and 0.6368, respectively. We recommend the Betamix model for the EQ-5D-5L (MAE = 0.0363, RMSE = 0.0505, AIC = -3458.73, BIC = -3096.91, AE > 0.05(%) = 48.38, AE > 0.1(%) = 8.67, ICC = 0.8288 for the full sample dataset) and the Betamix model for the SF-6D (MAE = 0.0328, RMSE = 0.0417, AIC = -2788.91, BIC = -2605.51, AE > 0.05(%) = 42.76, AE > 0.1(%) = 3.62, ICC = 0.8657 for the full sample dataset), with EORTC QLQ-C30 all items, QLQ H&N35 all items, age and gender as the predicted variables showing the best performance. CONCLUSION In the absence of preference-based quality of life tools, the mapping algorithms reported here are effective alternative for predicting the health utility of PTC patients, contributing to the cost-utility analysis studies.
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Affiliation(s)
- Deyu Huang
- School of Nursing, Chengdu Medical College, Chengdu, 610500, China
| | - Dingfen Zeng
- Nursing Department, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Yuan Tang
- Nursing Department, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Longlin Jiang
- Nursing Department, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Qing Yang
- Nursing Department, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China.
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Yang Q, Jiang LL, Li YF, Huang D. Prediction of the SF-6D utility score from Lung cancer FACT-L: a mapping study in China. Health Qual Life Outcomes 2023; 21:122. [PMID: 37964348 PMCID: PMC10648360 DOI: 10.1186/s12955-023-02209-8] [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: 04/26/2023] [Accepted: 11/07/2023] [Indexed: 11/16/2023] Open
Abstract
OBJECTIVE To develop a mapping algorithm for generating the Short Form Six-Dimension (SF-6D) utility score based on the Functional Assessment of Cancer Therapy-Lung (FACT-L) of lung cancer patients. METHODS Data were collected from 625 lung cancer patients in mainland China. The Spearman rank correlation coefficient and principal component analysis were used to evaluate the conceptual overlap between the FACT-L and SF-6D. Five model specifications and four statistical techniques were used to derive mapping algorithms, including ordinary least squares (OLS), Tobit and beta-mixture regression models, which were used to directly estimate health utility, and ordered probit regression was used to predict the response level. The prediction performance was evaluated using the correlations between the root mean square error (RMSE), mean absolute error (MAE), concordance correlation coefficient (CCC), Akaike information criterion (AIC) and Bayesian information criterion (BIC) and the observed and predicted SF-6D scores. A five-fold cross-validation method was used to test the universality of each model and select the best model. RESULTS The average FACT-L score was 103.024. The average SF-6D score was 0.774. A strong correlation was found between FACT-L and SF-6D scores (ρ = 0.797). The ordered probit regression model with the total score of each dimension and its square term, as well as age and sex as covariates, was most suitable for mapping FACT-L to SF-6D scores (5-fold cross-validation: RMSE = 0.0854; MAE = 0.0655; CCC = 0.8197; AEs > 0.1 (%) = 53.44; AEs > 0.05 (%) = 21.76), followed by beta-mixture regression for direct mapping. The Bland‒Altman plots showed that the ordered probit regression M5 had the lowest proportion of prediction scores outside the 95% agreement limit (-0.166, 0.163) at 4.96%. CONCLUSIONS The algorithm reported in this paper enables lung cancer data from the FACT-L to be mapped to the utility of the SF-6D. The algorithm allows the calculation of quality-adjusted life years for cost-utility analyses of lung cancer.
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Affiliation(s)
- Qing Yang
- Nursing Department, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, 610041, Chengdu, China.
| | - Long Lin Jiang
- Nursing Department, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, 610041, Chengdu, China
| | - Yin Feng Li
- Nursing Department, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, 610041, Chengdu, China
| | - Deyu Huang
- School of Nursing, Chengdu Medical College, 610500, Chengdu, China
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Yang Q, Huang D, Jiang L, Tang Y, Zeng D. Obtaining SF-6D utilities from FACT-H&N in thyroid carcinoma patients: development and results from a mapping study. Front Endocrinol (Lausanne) 2023; 14:1160882. [PMID: 37664851 PMCID: PMC10470082 DOI: 10.3389/fendo.2023.1160882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 07/31/2023] [Indexed: 09/05/2023] Open
Abstract
Objective There is limited evidence for mapping clinical tools to preference-based generic tools in the Chinese thyroid cancer patient population. The current study aims to map the FACT-H&N (Functional Assessment of Cancer Therapy-Head and Neck Cancer) to the SF-6D (Short Form Six-Dimension), which will inform future cost-utility analyses related to thyroid cancer treatment. Methods A total of 1050 participants who completed the FACT-H&N and SF-6D questionnaires were included in the analysis. Four methods of direct and indirect mapping were estimated: OLS regression, Tobit regression, ordered probit regression, and beta mixture regression. We evaluated the predictive performance in terms of root mean square error (RMSE), mean absolute error (MAE), concordance correlation coefficient (CCC), Akaike information criterion (AIC) and Bayesian information criterion (BIC) and the correlation between the observed and predicted SF-6D scores. Results The mean value of SF-6D was 0.690 (SD = 0.128). The RMSE values for the fivefold cross-validation as well as the 30% random sample validation for multiple models in this study were 0.0833-0.0909, MAE values were 0.0676-0.0782, and CCC values were 0.6940-0.7161. SF-6D utility scores were best predicted by a regression model consisting of the total score of each dimension of the FACT-H&N, the square of the total score of each dimension, and covariates including age and gender. We proposed to use direct mapping (OLS regression) and indirect mapping (ordered probit regression) to establish a mapping model of FACT-H&N to SF-6D. The mean SF-6D and cumulative distribution functions simulated from the recommended mapping algorithm generally matched the observed ones. Conclusions In the absence of preference-based quality of life tools, obtaining the health status utility of thyroid cancer patients from directly mapped OLS regression and indirectly mapped ordered probit regression is an effective alternative.
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Affiliation(s)
- Qing Yang
- Nursing Department, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Deyu Huang
- School of Nursing, Chengdu Medical College, Chengdu, China
| | - Longlin Jiang
- Nursing Department, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Yuan Tang
- Nursing Department, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Dingfen Zeng
- Nursing Department, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
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Oliveira Gonçalves AS, Werdin S, Kurth T, Panteli D. Mapping Studies to Estimate Health-State Utilities From Nonpreference-Based Outcome Measures: A Systematic Review on How Repeated Measurements are Taken Into Account. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2023; 26:589-597. [PMID: 36371289 DOI: 10.1016/j.jval.2022.09.2477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 09/09/2022] [Accepted: 09/29/2022] [Indexed: 05/06/2023]
Abstract
OBJECTIVES Mapping algorithms are developed using data sets containing patient responses to a preference-based questionnaire and another health-related quality-of-life questionnaire. When data sets include repeated measurements from the same individuals over time, the assumption of observations' independence, required by standard models, is violated, and standard errors are underestimated. This review aimed to identify how studies deal with methodological challenges of repeated measurements, provide an overview of practice to date, and potential implications for future work. METHODS We conducted a systematic literature search of MEDLINE, Cumulative Index to Nursing and Allied Health Literature, specialized databases, and previous systematic reviews. A data template was used to extract, among others, start and target instruments if the data set(s) used for estimation and validation had repeated measurements per patient, used regression techniques, and which (if any) adjustments were made for repeated measurements. RESULTS We identified 278 publications developing at least 1 mapping algorithm. Of the 278 publications, 121 used a data set with repeated measurements, among which 92 used multiple time points for estimation, and 39 selected specific time points to have 1 observation per participant. A total of 36 studies did not account for repeated measurements. An adjustment was conducted using cluster-robust standard errors (21), random-effects models (30), generalized estimating equations (7), and other methods (7). CONCLUSIONS The inconsistent use of methods to account for interdependent observations in the literature indicates that mapping guidelines should include recommendations on how to deal with repeated measurements, and journals should update their guidelines accordingly.
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Affiliation(s)
| | - Sophia Werdin
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland; University of Basel, Basel, Switzerland
| | - Tobias Kurth
- Institute of Public Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Dimitra Panteli
- Department of Health Care Management, Technische Universität Berlin, Berlin, Germany; European Observatory on Health Systems and Policies, Brussels, Belgium
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Hagiwara Y, Shiroiwa T, Taira N, Kawahara T, Konomura K, Noto S, Fukuda T, Shimozuma K. Gradient Boosted Tree Approaches for Mapping European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 Onto 5-Level Version of EQ-5D Index for Patients With Cancer. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2023; 26:269-279. [PMID: 36096966 DOI: 10.1016/j.jval.2022.07.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 07/10/2022] [Accepted: 07/31/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVES This study aimed to develop direct and response mapping algorithms from the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 onto the 5-level version of EQ-5D index based on the gradient boosted tree (GBT), a promising modern machine learning method. METHODS We used the Quality of Life Mapping Algorithm for Cancer study data (903 observations from 903 patients) for training GBTs and testing their predictive performance. In the Quality of Life Mapping Algorithm for Cancer study, patients with advanced solid tumor were enrolled, and the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 and 5-level version of EQ-5D were simultaneously evaluated. The Japanese value set was used for direct mapping, whereas the Japanese and US value sets were used for response mapping. We trained the GBTs in the training data set (80%) with cross-validation and tested the predictive performance measured by the root mean squared error (RMSE), mean absolute error (MAE), and mean error in the test data set (20%). RESULTS The RMSE and MAE in the test data set were larger in the GBT approaches than in the previously developed regression-based approaches. The mean error in the test data set tended to be smaller in the GBT approaches than in the previously developed regression-based approaches. CONCLUSIONS The predictive performances in the RMSE and MAE did not improve by the GBT approaches compared with regression approaches. The flexibility of the GBT approaches had the potential to reduce overprediction and underprediction in poor and good health, respectively. Further research is needed to establish the role of machine learning methods in mapping a nonpreference-based measure onto health utility.
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Affiliation(s)
- Yasuhiro Hagiwara
- Department of Biostatistics, Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
| | - Takeru Shiroiwa
- Center for Outcomes Research and Economic Evaluation for Health, National Institute of Public Health, Wako, Japan
| | - Naruto Taira
- Department of Breast and Thyroid Surgery, Kawasaki Medical School, Kurashiki, Japan
| | - Takuya Kawahara
- Clinical Research Promotion Center, The University of Tokyo Hospital, Tokyo, Japan
| | - Keiko Konomura
- Center for Outcomes Research and Economic Evaluation for Health, National Institute of Public Health, Wako, Japan
| | - Shinichi Noto
- Center for Health Economics and QOL Research, Niigata University of Health and Welfare, Niigata, Japan
| | - Takashi Fukuda
- Center for Outcomes Research and Economic Evaluation for Health, National Institute of Public Health, Wako, Japan
| | - Kojiro Shimozuma
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu, Japan
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Huang D, Peng J, Chen N, Yang Q, Jiang L. Mapping study of papillary thyroid carcinoma in China: Predicting EQ-5D-5L utility values from FACT-H&N. Front Public Health 2023; 11:1076879. [PMID: 36908441 PMCID: PMC9998072 DOI: 10.3389/fpubh.2023.1076879] [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: 10/26/2022] [Accepted: 02/02/2023] [Indexed: 02/25/2023] Open
Abstract
Objective To develop a mapping algorithm that can be used to predict EQ-5D-5L health utility scores from FACT-H&N and obtain health utility parameters for Chinese patients with papillary thyroid carcinoma (PTC), which can be used for cost-utility analysis in health economic. Methods A total of 1,050 patients with PTC from a tertiary hospital in China were included, and they completed FACT-H&N and EQ-5D-5L. Four mapping algorithms of direct mapping functions were used to derive the models: Ordinary least squares (OLS), Tobit model (Tobit), Two-part model (TPM), and Beta mixture regression model (Beta). The goodness-of-fit of models was assessed by the mean absolute error (MAE), root mean square error (RMSE), Akaike information criteria (AIC), Bayesian information criteria (BIC), and absolute error (AE). A fivefold cross-validation method was used to test the stability of the models. Results The mean utility value of the EQ-5D-5L was 0.870 ± 0.094. The mean EQ-VAS score was 76.5 ± 13.0. The Beta mixture regression model mapping FACT-H&N to EQ-5D-5L achieved the best performance [fivefold cross-validation MAE = 0.04612, RMSE = 0.06829, AIC = -2480.538, BIC = -2381.137, AE > 0.05 (%) = 32.48, AE > 0.1 (%) = 8.95]. The independent variables in this model were Physical Well-Being (PWB), Emotional Well-Being (EWB), Head & Neck Cancer Subscale (HNCS) scores and its square term and interaction term scores. Conclusions This study calculated the health utility score of Chinese patients with PTC. The reported algorithms can be used to map the FACT-H&N into the EQ-5D-5L, which can be applied in the cost-utility related study of patients with PTC.
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Affiliation(s)
- Deyu Huang
- School of Nursing, Chengdu Medical College, Chengdu, China
| | - Jialing Peng
- School of Nursing, Chengdu Medical College, Chengdu, China
| | - Na Chen
- School of Nursing, Chengdu Medical College, Chengdu, China
| | - Qing Yang
- Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Longlin Jiang
- Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
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Shirvani Shiri M, Karami H, Ameri H, Akbari Sari A, Tatari M, Emamgholipour S, Afshari S. The influencing factors of health-related quality of life of the general population of Iran during the COVID-19 Pandemic. Front Med (Lausanne) 2023; 10:1049642. [PMID: 36873889 PMCID: PMC9978381 DOI: 10.3389/fmed.2023.1049642] [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: 09/20/2022] [Accepted: 01/30/2023] [Indexed: 02/18/2023] Open
Abstract
COVID-19 is a global challenge that negatively affects the health-related quality of life (HRQoL) of the general population. The current study aimed to evaluate HRQoL and its associated factors among the Iranian general population during the COVID-19 pandemic. The data were collected in 2021 using the EuroQol 5-Dimension 3-Level (EQ-5D-3L) and EQ-5D Visual Analog Scale (EQ VAS) questionnaires through an online survey. Participants were recruited via social media from the Fars province. The multiple binary logistic regression model was used to identify factors influencing participants' HRQoL. Kolmogorov-Smirnov, the t-test, ANOVA, and the chi-square test were used. All tests were conducted at a significance level of 5% using Stata 14.2 and SPSS 16. A total of 1,198 participants were involved in this cross-sectional study. The mean age of participants was 33.3 (SD:10.2), and more than half were women (55.6%). The mean EQ-5D-3L index value and EQ-VAS of the respondents were 0.80 and 77.53, respectively. The maximum scores of the EQ-5D-3L and EQ-VAS in the present study were 1 and 100, respectively. The most frequently reported problems were anxiety/depression (A/D) (53.7%), followed by pain/discomfort (P/D) (44.2%). Logistic regression models showed that the odds of reporting problems on the A/D dimension increased significantly with supplementary insurance, including concern about getting COVID-19, hypertension, and asthma, by 35% (OR = 1.35; P = 0.03), 2% (OR = 1.02; P = 0.02), 83% (OR = 1.83; P = 0.02), and 6.52 times (OR = 6.52; P = 0.01), respectively. The odds of having problems on the A/D dimension were significantly lower among male respondents, those in the housewives + students category, and employed individuals by 54% (OR = 0.46; P = 0.04), 38% (OR = 0.62; P = 0.02) and 41% (OR = 0.59; P = 0.03), respectively. Moreover, the odds of reporting a problem on the P/D dimension decreased significantly in those belonging in a lower age group and with people who were not worried about getting COVID-19 by 71% (OR = 0.29; P = 0.03) and 65% (OR = 0.35; P = 0.01), respectively. The findings of this study could be helpful for policy-making and economic evaluations. A significant percentage of participants (53.7%) experienced psychological problems during the pandemic. Therefore, effective interventions to improve the quality of life of these vulnerable groups in society are essential.
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Affiliation(s)
- Maryam Shirvani Shiri
- Department of Health Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Hassan Karami
- Department of Health Management and Economics, School of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Hosein Ameri
- Department of Health Management and Economics, Health Policy and Management Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ali Akbari Sari
- Department of Health Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Tatari
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Vice Chancellery of Health, Torbat Heydariyeh University of Medical Sciences, Torbat-e Heydariyeh, Iran
| | - Sara Emamgholipour
- Department of Health Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Somayeh Afshari
- Department of Health Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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He Z, Liang W, Xu W, Huang W, Wang X, Huang K, Yang L. Mapping the FACT-G to EQ-5D-3L utility index in cancer with the Chinese values set. Expert Rev Pharmacoecon Outcomes Res 2022; 22:1103-1116. [PMID: 35711123 DOI: 10.1080/14737167.2022.2091546] [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] [Indexed: 12/24/2022]
Abstract
OBJECTIVE The purpose of this research was to create a function for mapping the cancer-specific instrument (FACT-G) to a preference-based measure (EQ-5D-3L) utility index for health-related quality of life, with utility scores generated using the Chinese value set. METHOD A cross-sectional study among 243 Chinese patients with cancer was conducted through EQ-5D-3L and FACT-G questionnaires survey. The EQ-5D-3L utility index values wad predicted based on OLS, GLM, CLAD, and Tobit model regression approaches. The performance and predictive power of each model were also evaluated using r2 and adj- r2, MAE, RMSE, ICC, and MID. Linear equating was used to avoid regression of the OLS model to mean. The model was validated using a 10-fold cross-validation method. RESULTS Among all regression models for the FACT-G, the OLS 5 model predicted mean EQ-5D-3L values the best, in terms of model goodness of fit (r2= 0.6230, r2= 58.93%, MAE = 0.0448, RMSE = 0.0624). The OLS model proved to be the most accurate for the mean, and the linear equating scores were much closer to observed scores. CONCLUSION Our results suggest that the best algorithm for FACT-G mapping to EQ-5D-3L utility index is OLS model, based on the survey of Chinese patients with cancer.
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Affiliation(s)
- ZhiKui He
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province, P.R. China
| | - WenJie Liang
- Department of Social Medicine, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province, P.R. China
| | - WenJia Xu
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province, P.R. China
| | - WenXiu Huang
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province, P.R. China
| | - XiaoMin Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province, P.R. China
| | - KaiYong Huang
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province, P.R. China
| | - Li Yang
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province, P.R. China
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12
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Meunier A, Soare A, Chevrou-Severac H, Myren KJ, Murata T, Longworth L. Indirect and Direct Mapping of the Cancer-Specific EORTC QLQ-C30 onto EQ-5D-5L Utility Scores. APPLIED HEALTH ECONOMICS AND HEALTH POLICY 2022; 20:119-131. [PMID: 34554442 DOI: 10.1007/s40258-021-00682-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/25/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE The aim of this study was to develop a response mapping algorithm to predict EQ-5D-5L utilities from European Organisation for Research and Treatment Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) scores and compare performance with direct mapping approaches to identify the best performing algorithm. METHODS The Multi-Instrument Comparison dataset contains responses to both the EQ-5D-5L and QLQ-C30 questionnaires from 692 individuals with a broad range of cancers. Response mapping was conducted, fitting ordered logistic regressions to predict response levels for each of the five EQ-5D dimensions and utilities were predicted using the US and Japanese EQ-5D-5L value sets to test the algorithm performance. Various direct mapping models were fitted: ordinary least squares, tobit, two-part (TPM), adjusted limited dependent variable mixture and beta mixture models. Model assessment and recommendations regarding the best mapping algorithm was based on goodness-of-fit statistics, predictive ability (measures of error, distribution of predicted utilities) and in sample cross-validation. RESULTS The response mapping model performed well in terms of predictive ability and measurement error using the US or Japanese value set, with mean absolute error ranging from 0.0708 to 0.0988, and comparably to the TPM, which was the best performing direct algorithm. CONCLUSION The developed mapping algorithms enable the prediction of EQ-5D-5L utilities from QLQ-C30 scores when EQ-5D-5L data have not been directly collected in clinical trials. The response mapping model offers the possibility of predicting EQ-5D-5L utility values using any national value set and can be generalised to multiple countries and oncology settings.
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Affiliation(s)
- Aurelie Meunier
- PHMR Limited, Berkeley Works, Berkley Grove, London, NW1 8XY, UK.
| | - Alexandra Soare
- PHMR Limited, Berkeley Works, Berkley Grove, London, NW1 8XY, UK
| | | | | | | | - Louise Longworth
- PHMR Limited, Berkeley Works, Berkley Grove, London, NW1 8XY, UK
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Xu RH, Dong D, Luo N, Wong ELY, Yang R, Liu J, Yuan H, Zhang S. Mapping the Haem-A-QoL to the EQ-5D-5L in patients with hemophilia. Qual Life Res 2021; 31:1533-1544. [PMID: 34846671 DOI: 10.1007/s11136-021-03051-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2021] [Indexed: 11/27/2022]
Abstract
OBJECTIVE This study's objective was to develop an algorithm that mapping the Haem-A-QoL scores to EQ-5D-5L utility scores in patients with hemophilia in China. METHODS A national sample of 862 patients with hemophilia completed both the EQ-5D-5L and Haem-A-QoL instruments. Eight regression models were selected to develop the mapping algorithm, they were: the ordinary least squares, general linear regression, Tobit regression, censored least absolute deviation, mixture beta regression, adjusted limited dependent variable mixture, the two-part, and robust MM-estimator model. Root mean squared error (RMSE), mean absolute error (MAE), and R-square (R2) calculated using the tenfold cross-validation and random sample validation methods were used to assess the predictive ability of the models. RESULTS Based on RMSE, MAE, and R2, the mixture beta regression model with selected Haem-A-QoL subscale scores as the predicted variables showed the best performance. CONCLUSIONS Our mapping algorithm bolsters the calculation of QALYs while conducting an economic evaluation of hemophilia-related interventions when only Haem-A-QoL data are available. The external validity of the algorithm should be further assessed in the other populations.
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Affiliation(s)
- Richard Huan Xu
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Dong Dong
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong SAR, China.
- Centre for Health Systems and Policy Research, JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong SAR, China.
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China.
- 4/F School of Public Health, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong SAR, China.
| | - Nan Luo
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Eliza Lai-Yi Wong
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong SAR, China
- Centre for Health Systems and Policy Research, JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Renchi Yang
- Thrombosis and Hemostasis Center, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Junshuai Liu
- Beijing Society of Rare Disease Clinical Care and Accessibility, Beijing, China
| | - Huiqin Yuan
- School of International Pharmaceutical Business, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Shuyang Zhang
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Science, Beijing, 100730, China.
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Yousefi M, Nahvijou A, Sari AA, Ameri H. Mapping QLQ-C30 Onto EQ-5D-5L and SF-6D-V2 in Patients With Colorectal and Breast Cancer From a Developing Country. Value Health Reg Issues 2021; 24:57-66. [DOI: 10.1016/j.vhri.2020.06.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 05/11/2020] [Accepted: 06/27/2020] [Indexed: 02/02/2023]
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Ahadi MS, Vahidpour N, Togha M, Daroudi R, Nadjafi-Semnani F, Mohammadshirazi Z, Akbari-Sari A, Ghorbani Z. Assessment of Utility in Migraine: Mapping the Migraine-Specific Questionnaire to the EQ-5D-5L. Value Health Reg Issues 2021; 25:57-63. [PMID: 33773328 DOI: 10.1016/j.vhri.2020.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 12/29/2020] [Accepted: 12/29/2020] [Indexed: 01/03/2023]
Abstract
INTRODUCTION There are increasing demands for studies of cost-effectiveness to allocate resources for disease prevention and treatment strategies. The aim of this study is to measure quality of life in migraineurs, based on the Migraine-Specific Questionnaire (MSQ) and EQ-5D-5L, and thereafter map an algorithm to estimate health-state utility values from the MSQ in individuals with migraine. METHODS In this cross-sectional study conducted between May and July 2018 in a tertiary headache clinic in Tehran, Iran, migraineurs diagnosed based on International Classification of Headache Disorders (ICHD)-3β were enrolled and were asked to complete the MSQ questionnaire and EQ-5D questionnaire. The Spearman correlation coefficient (ρ) was calculated to measure the correlation between the EQ-5D-5L and MSQ v2.1 domains' score. A P value of <.05 was considered statistically significant. After statistical analysis, several regression models were presented to map the results of the MSQ domains to the utility index, and the preferred model was achieved based on goodness of fit and the model's predictive performance. RESULTS The preferred MSQ algorithm had approximately the same prediction errors in all migraineurs, episodic and chronic migraine (root mean square error 0.24, 0.24, and 0.23, respectively). The preferred MSQ model explained a variance of 0.26 (R2) in episodic and 0.38 in chronic migraine in the EQ-5D-5L questionnaire. CONCLUSION The preferred MSQ mapping algorithm will be suitable in estimating health state utilities in trials of patients with migraine that contain MSQ scores but lack utility values.
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Affiliation(s)
- Maral Seyed Ahadi
- Headache Department, Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Headache Department, Neurology Ward, Sina University Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Niusha Vahidpour
- Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mansoureh Togha
- Headache Department, Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Headache Department, Neurology Ward, Sina University Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Rajabali Daroudi
- Department of Health, Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - Fatemeh Nadjafi-Semnani
- Eye Research Center, The Five Senses Institute Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | | | - Ali Akbari-Sari
- Department of Health, Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Zeinab Ghorbani
- Headache Department, Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
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Zare F, Ameri H, Madadizadeh F, Aghaei MR. Validity and reliability of the EQ-5D-3L (a generic preference-based instrument used for calculating quality-adjusted life -years) for patients with type 2 diabetes in Iran. Diabetes Metab Syndr 2021; 15:319-324. [PMID: 33486224 DOI: 10.1016/j.dsx.2021.01.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 01/06/2021] [Accepted: 01/08/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND AIMS The psychometric properties of the EQ-5D-3L (a generic preference-based instrument used for calculating quality-adjusted Life -years) have not been known for any type of disease in Iran. This study aimed to assess its validity and reliability in patients with type 2 diabetes. METHODS Data of 579 patients were collected from the Diabetes Research Center and Clinics in Yazd using EQ-5D-3L, SF-36, and DQoL instruments. The ceiling effects were computed for the EQ-5D-3L index and EQ VAS. The construct validity was assessed by using convergent validity, discriminant validity, and known-groups validity. Reliability was assessed using Cohen's kappa value, Cronbach's alpha, and intra-class correlation coefficient. RESULTS The ceiling effects of EQ-5D-3L and EQ VAS were 20.18% and 15.33%, respectively. The highest degree of correlation was found between the pain/discomfort of EQ-5D and the BP scale of the SF-36 (0.55). Higher scores of all scales of the DQoL were associated with patients reporting no problems in each EQ-5D dimension. The mean of EQ-5D-3L index and EQ VAS scores were significantly higher in the male, married, and employed patients, and they did not have retinopathy, nephropathy, IHD, hypertension, DFU. The range of kappa values was from 0.39 to 0.71, and value of ICC for the EQ-5D-3L index and EQ VAS was 0.76 and 0.64, respectively. Cronbach's alpha was 0.87 for EQ-5D-3L and 0.74 for EQ VAS. CONCLUSIONS Our findings demonstrated good construct validity and moderate to good levels of reliability of the EQ-5D-3L for using in the patients with diabetes, and it can be used in research or clinical practice in Iran and other regions of the Middle East.
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Affiliation(s)
- Forouzan Zare
- Department of Health Technology Assessment, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hosein Ameri
- Health Policy and Management Research Center, Department of Health Services Management, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Farzan Madadizadeh
- Research Center of Prevention and Epidemiology of Non-Communicable Disease, Departments of Biostatistics and Epidemiology, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Reza Aghaei
- Yazd Diabetic Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Hagiwara Y, Shiroiwa T, Taira N, Kawahara T, Konomura K, Noto S, Fukuda T, Shimozuma K. Mapping EORTC QLQ-C30 and FACT-G onto EQ-5D-5L index for patients with cancer. Health Qual Life Outcomes 2020; 18:354. [PMID: 33143687 PMCID: PMC7641825 DOI: 10.1186/s12955-020-01611-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 10/26/2020] [Indexed: 12/24/2022] Open
Abstract
Background To develop direct and indirect (response) mapping algorithms from the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) and the Functional Assessment of Cancer Therapy General (FACT-G) onto the EQ-5D-5L index. Methods We conducted the QOL-MAC study where EQ-5D-5L, EORTC QLQ-C30, and FACT-G were cross-sectionally evaluated in patients receiving drug treatment for solid tumors in Japan. We developed direct and indirect mapping algorithms using 7 regression methods. Direct mapping was based on the Japanese value set. We evaluated the predictive performances based on root mean squared error (RMSE), mean absolute error, and correlation between the observed and predicted EQ-5D-5L indexes. Results Based on data from 903 and 908 patients for EORTC QLQ-C30 and FACT-G, respectively, we recommend two-part beta regression for direct mapping and ordinal logistic regression for indirect mapping for both EORTC QLQ-C30 and FACT-G. Cross-validated RMSE were 0.101 in the two methods for EORTC QLQ-C30, whereas they were 0.121 in two-part beta regression and 0.120 in ordinal logistic regression for FACT-G. The mean EQ-5D-5L index and cumulative distribution function simulated from the recommended mapping algorithms generally matched with the observed ones except for very good health (both source measures) and poor health (only FACT-G). Conclusions The developed mapping algorithms can be used to generate the EQ-5D-5L index from EORTC QLQ-C30 or FACT-G in cost-effectiveness analyses, whose predictive performance would be similar to or better than those of previous algorithms.
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Affiliation(s)
- Yasuhiro Hagiwara
- Department of Biostatistics, Division of Health Sciences and Nursing, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - Takeru Shiroiwa
- Center for Outcomes Research and Economic Evaluation for Health, National Institute of Public Health, Wako, Japan
| | - Naruto Taira
- Breast and Endocrine Surgery Department, Okayama University Hospital, Okayama, Japan
| | - Takuya Kawahara
- Clinical Research Promotion Center, The University of Tokyo Hospital, Tokyo, Japan
| | - Keiko Konomura
- Center for Outcomes Research and Economic Evaluation for Health, National Institute of Public Health, Wako, Japan
| | - Shinichi Noto
- Center for Health Economics and QOL Research, Niigata University of Health and Welfare, Niigata, Japan
| | - Takashi Fukuda
- Center for Outcomes Research and Economic Evaluation for Health, National Institute of Public Health, Wako, Japan
| | - Kojiro Shimozuma
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu, Japan
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Ameri H, Yousefi M, Yaseri M, Nahvijou A, Arab M, Akbari Sari A. Mapping EORTC-QLQ-C30 and QLQ-CR29 onto EQ-5D-5L in Colorectal Cancer Patients. J Gastrointest Cancer 2020; 51:196-203. [PMID: 30977049 DOI: 10.1007/s12029-019-00229-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE Patient-level utility data are needed for cost-utility analysis; in oncology, however, the data are commonly gathered using disease-specific questionnaires that are often not appropriate. Present study aimed to derive an algorithm which can map the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-C30 (EORTC QLQ-C30) scales and the Colorectal Cancer-Specific Quality Of Life Questionnaire (QLQ-CR29) scales onto the EuroQoL 5-Dimension 5-Level (EQ-5D-5L) values in patients with colorectal cancer (CRC). METHODS Using the Ordinary Least Square (OLS) model, a cross-sectional dataset of 252 patients with CRC were gathered from three academic centers of cancer treatment in Tehran in 2017. The predicted R2 (Pred R2) and adjusted R2 (Adj R2) are used to evaluate model goodness of fit. Additionally, mean absolute error (MAE), root mean square error (RMSE), Spearman's correlation coefficients (ρ), and intraclass correlation (ICC) are applied to assess predictive ability of models. The tenfold cross-validation procedure was applied for validation models. RESULTS According to the results of our study, the model C4 from EORTC QLQ-C30 was the best predictive model (Pred R2 = 66.57%, Adj R2 = 67.67%, RMSE = 0.10173, MAE = 0.07840). Also, the model R4 from QLQ-CR29 performed the best for EQ-5D-5L (Adj R2 = 48.42%, Pred R2 = 45.54%, MAE = 0.10051, RMSE = 0.12997). CONCLUSIONS The mapping algorithm successfully mapped the EORTC QLQ-C30 and QLQ-CR29 scales onto the EQ-5D-5L values; therefore, it enables policymakers to convert cancer-specific questionnaires scores to the preference-based scores.
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Affiliation(s)
- Hosein Ameri
- Department of Health Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Yousefi
- Iranian Center of Excellence in Health Management, School of Management and Medical Informatics, Health Economics Department, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yaseri
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Azin Nahvijou
- Department of Health Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Arab
- Department of Health Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Akbari Sari
- Department of Health Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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Ameri H, Safari H, Poder T. Exploring the consistency of the SF-6Dv2 in a breast cancer population. Expert Rev Pharmacoecon Outcomes Res 2020; 21:1017-1024. [PMID: 33107340 DOI: 10.1080/14737167.2021.1842734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Background: Short-Form Six-Dimension version 2 (SF-6Dv2) is a multi-attribute utility instrument that can be used in combination with the SF-36v2 (SF-6Dv2SF-36) or as an independent instrument in two forms: six questions (SF-6Dv2ind-6) and 10 questions (SF-6Dv2ind-10). The purpose of this research was to assess the consistency between the results of the SF-6Dv2ind-6 and the SF-6Dv2SF-36 in patients with breast cancer.Research design and methods: This cross-sectional study was carried out on 418 patients with breast cancer. The degree of agreement between the descriptive systems of instruments was calculated using Spearman's correlation coefficient, global consistency index (GCI), and identically classified index (ICI).Results: The average size of the Spearman's correlation coefficients between the descriptive systems of instruments was higher than 0.5. The results of the GCI revealed that the level of agreement between dimensions of the two instruments had a mean of 64.9 (range 32.45-86.8). The SF-6Dv2SF-36 generates statistically higher values than does the SF-6Dv2ind-6, and mean difference between the two instruments was 0.087 for model 3 and 0.027 for model 10.Conclusions: This study provided evidence that the SF-6Dv2SF-36 and the SF-6Dv2ind-6 may produce different answers from patients with breast cancer and lead to a small difference in utility values.
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Affiliation(s)
- Hosein Ameri
- Health Policy and Management Research Center, Department of Health Services Management, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hossein Safari
- Health Promotion Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Thomas Poder
- Department of Management, Evaluation and Health Policy, School of Public Health, University of Montreal, Montreal, QC, Canada
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Zare F, Ameri H, Madadizadeh F, Reza Aghaei M. Health-related quality of life and its associated factors in patients with type 2 diabetes mellitus. SAGE Open Med 2020; 8:2050312120965314. [PMID: 33996077 PMCID: PMC8107944 DOI: 10.1177/2050312120965314] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 09/18/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Assessing the health-related quality of life in patients with type 2 diabetes
mellitus is important for evaluation of treatment outcome. The purpose of
this study was to evaluate the health-related quality of life in type 2
diabetes mellitus patients and its related factors in Yazd. Methods: Data were gathered by using the EuroQoL-five-dimension-5 level instrument as
well as using medical records of 734 outpatients with type 2 diabetes
mellitus who were referred to the largest governmental diabetes center in
South of Iran, Yazd province. When appropriate, the Kruskal–Wallis test or
the Wilcoxon test was used to test the difference in the health-related
quality-of-life scores in each factor. Finally, the adjusted limited
dependent variable mixture model was developed to investigate factors
associated with health-related quality-of-life scores. Results: The mean and median of the EuroQoL-five-dimension-5 level index values of 717
patients who completed the questionnaires were 0.75 ± 0.006 and 0.72 ± 0.20,
respectively, and those of the Visual Analogue Scale scores were
69.25 ± 0.63 and 75 ± 30, respectively. The mean scores for health-related
quality of life were significantly higher for employed, educated, single,
and male patients, as well as patients without comorbidities,
diabetes-related complications, and hemoglobin A1c level >7%. Adjusted
limited dependent variable mixture model showed that gender, age, marital
status, and diabetes-related complications are significant independent
predictors of EuroQoL-five-dimension-5 level index value. Conclusion: The mean scores for health-related quality of life in patients with type 2
diabetes mellitus were moderate in this study, and this finding is
consistent with health-related quality-of-life scores reported in other
studies conducted in the Middle East region. Therefore, health-related
quality of life should be the most important consideration in the management
of patients. In parallel, some factors, especially gender, should be
considered to improve health-related quality of life.
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Affiliation(s)
- Forouzan Zare
- Department of Health Technology
Assessment, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hosein Ameri
- Department of Health Technology
Assessment, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Hosein Ameri, Department of Health
Technology Assessment, Shahid Sadoughi University of Medical Sciences, Yazd,
Iran.
| | - Farzan Madadizadeh
- Department of Epidemiology and
Biostatistics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Reza Aghaei
- Yazd Diabetic Research Center, Shahid
Sadoughi University of Medical Sciences, Yazd, Iran
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Arab-Zozani M, Hashemi F, Safari H, Yousefi M, Ameri H. Health-Related Quality of Life and its Associated Factors in COVID-19 Patients. Osong Public Health Res Perspect 2020; 11:296-302. [PMID: 33117634 PMCID: PMC7577388 DOI: 10.24171/j.phrp.2020.11.5.05] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/23/2020] [Accepted: 08/20/2020] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVES Health-related quality of life (HRQoL) is one of the most important outcome measures for patients. The purpose of this study was to evaluate HRQoL and related factors in Coronavirus disease 2019 (COVID-19) patients. METHODS A total of 420 COVID-19 patients who had been discharged from hospital were selected using a systematic sampling. The EuroQol 5-dimensional-5 levels (EQ-5D-5L) questionnaire along with medical records of the patients were used to gather the data. The t test and analysis of variance were employed to test the difference between mean EQ-5D-5L scores, and the BetaMix model was used to investigate factors associated with EQ-5D-5L scores. RESULTS The mean score for the patients who completed the EQ-5D-5L questionnaire (n = 409) was 0.6125. The EQ-5D-5L scores were significantly higher in males, patients with younger age, those with a low level of education, the employed, patients who worked in uncrowded workplaces, patients without diabetes, and those who were not admitted to intensive care unit. The BetaMix model showed that gender, age, education, employment status, having diabetes, heart failure, and admission to the intensive care unit were significant independent predictors of the EQ-5D-5L index values. CONCLUSION The mean score for EQ-5D-5L in COVID-19 patients was low in this study. Some of the factors, especially aging and having diabetes, should be considered in the aftercare of patients to improve their HRQoL.
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Affiliation(s)
- Morteza Arab-Zozani
- Social Determinants of Health Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Fatemah Hashemi
- Healthcare Management, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hossein Safari
- Health Promotion Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mahmood Yousefi
- Iranian Center of Excellence in Health Management, School of Management and Medical Informatics, Health Economics Department, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hosein Ameri
- Health Policy and Management Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Ameri H, Safari H, Yousefi M, Bagheri Faradonbeh S, Goudarzi R, Soofi M. Interim value set for the EQ-5D-5L in Iran using the Crosswalk method. Med J Islam Repub Iran 2020; 34:121. [PMID: 33437717 PMCID: PMC7787042 DOI: 10.34171/mjiri.34.121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Indexed: 01/11/2023] Open
Abstract
Background: The EuroQol five-dimensional 5 level (EQ-5D-5L) value set is not currently available for the Iranian general public, while the value set for EuroQol five-dimensional 3 level (EQ-5D-3L) is available. The present study aimed to generate an interim EQ-5D-5L value set for the context of Iran. Methods: The Iranian interim EQ-5D-5L value set was generated using the crosswalk method, which maps EQ-5D-3L and EQ-5D-5L responses. The EQ-5D-3L value set has previously been estimated by Time Trade-Off (TTO) method. The interim value set obtained for EQ-5D-5L was compared with the value set of EQ-5D-3L by using measures of mean, median, and skewness.The analysis was done using STATA version 15. Results: The mean and median scores of the Iranian interim value set were 0.499 and 0.451 for EQ-5D-5L and 0.455 and 0.459 for Iranian EQ-5D-3L, respectively. The range of value for both EQ-5D-3L and interim EQ-5D-5L was -0.113 to 0.919. Data skewness of EQ-5D-3L and interim EQ-5D-5L was-0.099 and -0.114, respectively. In addition, the figure of distribution of value sets for both data sets had a tail extended towards the left. The states of "good health"(i.e., states with value>0.8) for the EQ-5D-3L value set were proportionally more than the Iranian interim EQ-5D-5Lcrosswalk value set (2.47% vs. 0.448%). Conclusion: An EQ-5D-5L value set was generated using the crosswalk method for the Iranian general public, and now researchers and policy-makers can apply it to their economic and clinical analyses.
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Affiliation(s)
- Hosein Ameri
- Health Policy and Management Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hossein Safari
- Health Promotion Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Mahmood Yousefi
- Iranian Center of Excellence in Health Management, School of Management and Medical Informatics, Health Economics Department, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeid Bagheri Faradonbeh
- Health Management and Economics Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Reza Goudarzi
- Health Service Management Research Center, Institute for Future Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Moslem Soofi
- Social Development and Health Promotion Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Nahvijou A, Safari H, Ameri H. Comparing the performance of the EQ-5D-5L with two versions of the SF-6Dv2 in patients with breast cancer. HEALTH SERVICES AND OUTCOMES RESEARCH METHODOLOGY 2020. [DOI: 10.1007/s10742-020-00215-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Nahvijou A, Safari H, Yousefi M, Rajabi M, Arab-Zozani M, Ameri H. Mapping the cancer-specific FACT-B onto the generic SF-6Dv2. Breast Cancer 2020; 28:130-136. [DOI: 10.1007/s12282-020-01141-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 07/16/2020] [Indexed: 02/07/2023]
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Franken MD, de Hond A, Degeling K, Punt CJA, Koopman M, Uyl-de Groot CA, Versteegh MM, van Oijen MGH. Evaluation of the performance of algorithms mapping EORTC QLQ-C30 onto the EQ-5D index in a metastatic colorectal cancer cost-effectiveness model. Health Qual Life Outcomes 2020; 18:240. [PMID: 32690011 PMCID: PMC7370458 DOI: 10.1186/s12955-020-01481-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 07/07/2020] [Indexed: 02/06/2023] Open
Abstract
Background Cost-effectiveness models require quality of life utilities calculated from generic preference-based questionnaires, such as EQ-5D. We evaluated the performance of available algorithms for QLQ-C30 conversion into EQ-5D-3L based utilities in a metastatic colorectal cancer (mCRC) patient population and subsequently developed a mCRC specific algorithm. Influence of mapping on cost-effectiveness was evaluated. Methods Three available algorithms were compared with observed utilities from the CAIRO3 study. Six models were developed using 5-fold cross-validation: predicting EQ-5D-3L tariffs from QLQ-C30 functional scale scores, continuous QLQ-C30 scores or dummy levels with a random effects model (RE), a most likely probability method on EQ-5D-3L functional scale scores, a beta regression model on QLQ-C30 functional scale scores and a separate equations subgroup approach on QLQ-C30 functional scale scores. Performance was assessed, and algorithms were tested on incomplete QLQ-C30 questionnaires. Influence of utility mapping on incremental cost/QALY gained (ICER) was evaluated in an existing Dutch mCRC cost-effectiveness model. Results The available algorithms yielded mean utilities of 1: 0.87 ± sd:0.14,2: 0.81 ± 0.15 (both Dutch tariff) and 3: 0.81 ± sd:0.19. Algorithm 1 and 3 were significantly different from the mean observed utility (0.83 ± 0.17 with Dutch tariff, 0.80 ± 0.20 with U.K. tariff). All new models yielded predicted utilities drawing close to observed utilities; differences were not statistically significant. The existing algorithms resulted in an ICER difference of €10,140 less and €1765 more compared to the observed EQ-5D-3L based ICER (€168,048). The preferred newly developed algorithm was €5094 higher than the observed EQ-5D-3L based ICER. Disparity was explained by minimal diffences in incremental QALYs between models. Conclusion Available mapping algorithms sufficiently accurately predict utilities. With the commonly used statistical methods, we did not succeed in developping an improved mapping algorithm. Importantly, cost-effectiveness outcomes in this study were comparable to the original model outcomes between different mapping algorithms. Therefore, mapping can be an adequate solution for cost-effectiveness studies using either a previously designed and validated algorithm or an algorithm developed in this study.
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Affiliation(s)
- Mira D Franken
- University Medical Centre Utrecht, Utrecht University, Cancer Centre, Department of Medical Oncology, P.O. Box 85500, 3508, GA, Utrecht, the Netherlands.
| | - Anne de Hond
- IT Department, Leiden University Medical Center, Leiden, the Netherlands
| | - Koen Degeling
- Cancer Health Services Research Unit, Faculty of Medicine, Dentistry and Health Sciences, School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - Cornelis J A Punt
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Centers, location AMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Miriam Koopman
- University Medical Centre Utrecht, Utrecht University, Cancer Centre, Department of Medical Oncology, P.O. Box 85500, 3508, GA, Utrecht, the Netherlands
| | - Carin A Uyl-de Groot
- Institute for Medical Technology Assessment/institute of Health policy and Management, Erasmus University, Rotterdam, the Netherlands
| | - Matthijs M Versteegh
- Institute for Medical Technology Assessment/institute of Health policy and Management, Erasmus University, Rotterdam, the Netherlands
| | - Martijn G H van Oijen
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Centers, location AMC, University of Amsterdam, Amsterdam, the Netherlands
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Moradpour A, Hadian M, Tavakkoli M. Economic evaluation of End Stage Renal Disease treatments in Iran. CLINICAL EPIDEMIOLOGY AND GLOBAL HEALTH 2020. [DOI: 10.1016/j.cegh.2019.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Tran BT, Pham NH, Nguyen TX, Choi KS, Sohn DK, Kim SY, Suh JK, Nguyen TD, Phan VS, Tran DT, Nguyen TT, Nguyen TTB, Nguyen MT, Oh JK. Measurement of Health-Related Quality of Life Among Colorectal Cancer Patients Using the Vietnamese Value Set of the EQ-5D-5L. Patient Prefer Adherence 2020; 14:2427-2437. [PMID: 33304097 PMCID: PMC7723232 DOI: 10.2147/ppa.s281500] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 11/20/2020] [Indexed: 11/30/2022] Open
Abstract
PURPOSE Health-related quality of life (HRQoL) is an important construct in clinical settings, and it is crucial that it should be properly measured. As the EuroQol-5-dimensions-5 levels (EQ-5D-5L) is more effective for such measurement than the 3-level model, data on economic models, clinical studies, and public health evaluations previously collected through the EQ-5D-3L need to be revaluated using the EQ-5D-5L. This study evaluated colorectal cancer (CRC) patients' HRQoL scores using the Vietnamese EQ-5D-5L value set. PATIENTS AND METHODS The cross-sectional study included CRC patients treated at a tertiary public hospital. HRQoL was assessed using the EQ-5D-5L, and HRQoL utility scores were calculated using the Vietnamese value set. Tobit regression examined factors associated with HRQoL. RESULTS The analysis included 197 CRC patients. Ages ranged from 20 to 87 years (M = 57.64, SD = 13.5); 42.2% and 57.8% were diagnosed with cancer of the colon or rectum/anus, respectively. Mean EQ-5D-5L was 0.561 (range, -0.5115 to 1). Most participants experienced anxiety/depression (88%), followed by pain/discomfort (87%), mobility (71%), usual activity (69%), and self-care (67%). Advanced CRC stage (stage II: β -0.303, se 0.08; stage III: β -0.305, se 0.07; stage IV: β -0.456, se 0.07) and surgery (β -0.113, se 0.05) were negatively associated with EQ-5D-5L scores. Advanced education (high school: β 0.273, se 0.07); college/vocational: β 0.134se 0.05; university/higher: Coef 0.213, se 0.08;) and older age (age group 35-44: β 0.253, se 0.10; 45-54: β 0.327, se 0.09; 55-64: β 0.355 se 0.09; 65+ β 0.204, se 0.09) were positively associated with EQ-5D-5L scores. CONCLUSION Patients in advanced CRC stages or undergoing surgery experienced lower HRQoL and higher prevalence of anxiety/depression and pain/discomfort. Older age and high educational attainment predicted high HRQoL. This study provides information on CRC patients' health utility based on various patient characteristics, which can be used in future economic evaluations.
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Affiliation(s)
- Binh Thang Tran
- Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Republic of Korea
- Faculty of Public Health, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
| | - Nhu Hiep Pham
- Department of Abdominal Emergency and Pediatric Surgery, Hue Central Hospital, Hue City, Vietnam
| | - Thanh Xuan Nguyen
- Department of Abdominal Emergency and Pediatric Surgery, Hue Central Hospital, Hue City, Vietnam
| | - Kui Son Choi
- Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Republic of Korea
- National Cancer Control Institute; National Cancer Center, Goyang, Republic of Korea
| | - Dae Kyung Sohn
- Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Republic of Korea
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, South Korea
| | - Sun-Young Kim
- Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Republic of Korea
| | - Jae Kyung Suh
- Division of Healthcare Technology Assessment Research, National Evidence-Based Healthcare Collaborating Agency, Seoul, Korea
| | - Thuy Duyen Nguyen
- Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Republic of Korea
- Center for Population Health Sciences, Hanoi University of Public Health, Hanoi, Vietnam
| | - Van Sang Phan
- Faculty of Public Health, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
| | - Dinh Trung Tran
- Faculty of Public Health, Da Nang University of Medical Technology and Pharmacy, Da Nang City, Vietnam
| | - The Thanh Nguyen
- Department of Endoscopy and Functional Exploration, Da Nang Oncology Hospital, Da Nang City, Vietnam
| | - Thi Thanh Binh Nguyen
- Department of Pediatrics, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
| | - Minh Tu Nguyen
- Undergraduate Training Office, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
| | - Jin-Kyoung Oh
- Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Republic of Korea
- Division of Cancer Prevention & Early Detection, National Cancer Center, Goyang, Republic of Korea
- Correspondence: Jin-Kyoung Oh Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, 323 Ilsan-Ro, Ilsandong-Gu, Goyang-si, Gyeonggi-do410-769, Republic of KoreaTel +82-31-920-2921Fax +82-31-920-2929 Email
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Assessing the performance of direct and indirect utility eliciting methods in patients with colorectal cancer: EQ-5D-5L versus C-TTO. HEALTH SERVICES AND OUTCOMES RESEARCH METHODOLOGY 2019. [DOI: 10.1007/s10742-019-00204-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Mukuria C, Rowen D, Harnan S, Rawdin A, Wong R, Ara R, Brazier J. An Updated Systematic Review of Studies Mapping (or Cross-Walking) Measures of Health-Related Quality of Life to Generic Preference-Based Measures to Generate Utility Values. APPLIED HEALTH ECONOMICS AND HEALTH POLICY 2019; 17:295-313. [PMID: 30945127 DOI: 10.1007/s40258-019-00467-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
BACKGROUND Mapping is an increasingly common method used to predict instrument-specific preference-based health-state utility values (HSUVs) from data obtained from another health-related quality of life (HRQoL) measure. There have been several methodological developments in this area since a previous review up to 2007. OBJECTIVE To provide an updated review of all mapping studies that map from HRQoL measures to target generic preference-based measures (EQ-5D measures, SF-6D, HUI measures, QWB, AQoL measures, 15D/16D/17D, CHU-9D) published from January 2007 to October 2018. DATA SOURCES A systematic review of English language articles using a variety of approaches: searching electronic and utilities databases, citation searching, targeted journal and website searches. STUDY SELECTION Full papers of studies that mapped from one health measure to a target preference-based measure using formal statistical regression techniques. DATA EXTRACTION Undertaken by four authors using predefined data fields including measures, data used, econometric models and assessment of predictive ability. RESULTS There were 180 papers with 233 mapping functions in total. Mapping functions were generated to obtain EQ-5D-3L/EQ-5D-5L-EQ-5D-Y (n = 147), SF-6D (n = 45), AQoL-4D/AQoL-8D (n = 12), HUI2/HUI3 (n = 13), 15D (n = 8) CHU-9D (n = 4) and QWB-SA (n = 4) HSUVs. A large number of different regression methods were used with ordinary least squares (OLS) still being the most common approach (used ≥ 75% times within each preference-based measure). The majority of studies assessed the predictive ability of the mapping functions using mean absolute or root mean squared errors (n = 192, 82%), but this was lower when considering errors across different categories of severity (n = 92, 39%) and plots of predictions (n = 120, 52%). CONCLUSIONS The last 10 years has seen a substantial increase in the number of mapping studies and some evidence of advancement in methods with consideration of models beyond OLS and greater reporting of predictive ability of mapping functions.
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Affiliation(s)
- Clara Mukuria
- School of Health and Related Research (ScHARR), University of Sheffield, Regent Court, 30 Regent Street, Sheffield, S1 4DA, UK.
| | - Donna Rowen
- School of Health and Related Research (ScHARR), University of Sheffield, Regent Court, 30 Regent Street, Sheffield, S1 4DA, UK
| | - Sue Harnan
- School of Health and Related Research (ScHARR), University of Sheffield, Regent Court, 30 Regent Street, Sheffield, S1 4DA, UK
| | - Andrew Rawdin
- School of Health and Related Research (ScHARR), University of Sheffield, Regent Court, 30 Regent Street, Sheffield, S1 4DA, UK
| | - Ruth Wong
- School of Health and Related Research (ScHARR), University of Sheffield, Regent Court, 30 Regent Street, Sheffield, S1 4DA, UK
| | - Roberta Ara
- School of Health and Related Research (ScHARR), University of Sheffield, Regent Court, 30 Regent Street, Sheffield, S1 4DA, UK
| | - John Brazier
- School of Health and Related Research (ScHARR), University of Sheffield, Regent Court, 30 Regent Street, Sheffield, S1 4DA, UK
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