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Rencz F, Janssen MF. Time perspective profile and self-reported health on the EQ-5D. Qual Life Res 2024; 33:73-85. [PMID: 37682495 PMCID: PMC10784346 DOI: 10.1007/s11136-023-03509-8] [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] [Accepted: 08/23/2023] [Indexed: 09/09/2023]
Abstract
OBJECTIVES Time perspective (TP) is a psychological construct that is associated with several health-related behaviours, including healthy eating, smoking and adherence to medications. In this study, we aimed to examine the associations of TP profile with self-reported health on the EQ-5D-5L and to detect which domains display response heterogeneity (cut-point shift) for TP. METHODS We conducted a secondary analysis of EQ-5D-5L data from a representative general population sample in Hungary (n = 996). The 17-item Zimbardo Time Perspective Inventory was used to measure individuals' TP on five subscales: past-negative, past-positive, present-fatalist, present-hedonist and future. The associations between TP subscales and EQ-5D-5L domain scores, EQ VAS and EQ-5D-5L index values were analysed by using partial proportional odds models and multivariate linear regressions. RESULTS Respondents that scored higher on the past-negative and present-fatalist and lower on the present-hedonist and future subscales were more likely to report more health problems in at least one EQ-5D-5L domain (p < 0.05). Adjusting for socio-economic and health status, three EQ-5D-5L domains exhibited significant associations with various TP subscales (usual activities: present-fatalist and future, pain/discomfort: past-negative and future, anxiety/depression: past-negative, present-fatalist, present-hedonist and future). The anxiety/depression domain showed evidence of cut-point shift. CONCLUSIONS This study identified response heterogeneity stemming from psychological characteristics in self-reported health on the EQ-5D-5L. TP seems to play a double role in self-reported health, firstly as affecting underlying health and secondly as a factor influencing one's response behavior. These findings increase our understanding of the non-health-related factors that affect self-reported health on standardized health status measures.
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Affiliation(s)
- Fanni Rencz
- Department of Health Policy, Corvinus University of Budapest, 8 Fővám tér, Budapest, 1093, Hungary.
| | - Mathieu F Janssen
- Section Medical Psychology and Psychotherapy, Department of Psychiatry, Erasmus MC, Rotterdam, The Netherlands
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Åström M, Thet Lwin ZM, Teni FS, Burström K, Berg J. Use of the visual analogue scale for health state valuation: a scoping review. Qual Life Res 2023; 32:2719-2729. [PMID: 37029258 PMCID: PMC10474194 DOI: 10.1007/s11136-023-03411-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2023] [Indexed: 04/09/2023]
Abstract
OBJECTIVES The visual analogue scale (VAS) has been used in the context of health and healthcare for various purposes, for example, to measure pain and to provide a single-index measure of health-related quality of life (HRQoL). This scoping review aims to describe how the VAS has been used for health state valuation in the published literature. METHODS The search was carried out in Medline, Web of Science and PsycInfo. The findings of the included articles were tabulated and presented descriptively using frequencies and proportions. RESULTS The database search yielded 4856 unique articles, out of these, 308 were included. In 83% of the articles, the main purpose for using a VAS was to value health states. The two most common perspectives when valuing health states with a VAS were hypothetical (44%) and own health (34%). Some (n = 14) articles used the VAS in the context of economic evaluations, including calculating quality-adjusted life years (QALYs). A large variation in the design of the VAS was found, including the description of the lower and upper anchors. Advantages and disadvantages with using a VAS were mentioned in 14% of the included articles. CONCLUSION The VAS has been a common method for valuing health states, both as a stand-alone method and in combination with other valuation methods. Despite its widespread use, the design of the VAS has been inconsistent which makes comparison of results across studies challenging. Further research on the role of using the VAS in economic evaluations is warranted.
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Affiliation(s)
- Mimmi Åström
- Health Outcomes and Economic Evaluation Research Group, Stockholm Centre for Healthcare Ethics, Department of Learning, Informatics, Management and Ethics, Karolinska Institutet, Tomtebodavägen 18 A, 171 77, Stockholm, Sweden.
- Equity and Health Policy Research Group, Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden.
- Centre for Health Economics, Informatics and Health Services Research, Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden.
| | - Zin Min Thet Lwin
- Health Outcomes and Economic Evaluation Research Group, Stockholm Centre for Healthcare Ethics, Department of Learning, Informatics, Management and Ethics, Karolinska Institutet, Tomtebodavägen 18 A, 171 77, Stockholm, Sweden
| | - Fitsum Sebsibe Teni
- Health Outcomes and Economic Evaluation Research Group, Stockholm Centre for Healthcare Ethics, Department of Learning, Informatics, Management and Ethics, Karolinska Institutet, Tomtebodavägen 18 A, 171 77, Stockholm, Sweden
| | - Kristina Burström
- Health Outcomes and Economic Evaluation Research Group, Stockholm Centre for Healthcare Ethics, Department of Learning, Informatics, Management and Ethics, Karolinska Institutet, Tomtebodavägen 18 A, 171 77, Stockholm, Sweden
- Equity and Health Policy Research Group, Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden
| | - Jenny Berg
- Health Outcomes and Economic Evaluation Research Group, Stockholm Centre for Healthcare Ethics, Department of Learning, Informatics, Management and Ethics, Karolinska Institutet, Tomtebodavägen 18 A, 171 77, Stockholm, Sweden
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Perez-Sousa MA, Olivares PR, Carrasco-Zahinos R, Garcia-Hermoso A. Normative Values and Psychometric Properties of EQ-5D-Y-3L in Chilean Youth Population among Different Weight Statuses. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:4096. [PMID: 36901107 PMCID: PMC10002306 DOI: 10.3390/ijerph20054096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND This study aimed to provide population norms among children and adolescents in Chile using the EQ-5D-Y-3L questionnaire and to examine its feasibility and validity among body weight statuses. METHODS This was a cross-sectional study in which 2204 children and adolescents (aged 8-18 years) from Chile completed a set of questionnaires providing sociodemographic, anthropometric and health-related quality of life (HRQoL) data using the five EQ-5D-Y-3L dimensions and its visual analogue scale (EQ-VAS). Descriptive statistics of the five dimensions and the EQ-VAS were categorized into body weight status groups for the EQ-5D-Y-3L population norms. The ceiling effect, feasibility and discriminant/convergent validity of the EQ-5D-Y-3L were tested. RESULTS The dimensions of the EQ-5D-Y-3L questionnaire presented more ceiling effects than the EQ-VAS. The validity showed that the EQ-VAS could discriminate among body weight statuses. However, the EQ-5D-Y-3L index (EQ-Index) demonstrated a non-acceptable discriminant validity. Furthermore, both the EQ-Index and the EQ-VAS presented an acceptable concurrent validity among weight statuses. CONCLUSIONS The normative values of the EQ-5D-Y-3L indicated its potential use as a reference for future studies. However, the validity of the EQ-5D-Y-3L for comparing the HRQoL among weight statuses could be insufficient.
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Affiliation(s)
- Miguel Angel Perez-Sousa
- Department of Physical Education, Faculty of Education, University of Córdoba, 14071 Cordoba, Spain
- Epidemiology of Physical Activity and Fitness Across Lifespan Research Group, University of Seville, 41004 Seville, Spain
| | - Pedro R. Olivares
- Faculty of Education, Psychology and Sport Sciences, University of Huelva, Avenida de las Fuerzas Armadas s/n 21007, 21004 Huelva, Spain
- Instituto de Actividad Fisica y Salud, Universidad Autonoma de Chile, Talca 3460000, Chile
| | - Rocio Carrasco-Zahinos
- Faculty of Education, Psychology and Sport Sciences, University of Huelva, Avenida de las Fuerzas Armadas s/n 21007, 21004 Huelva, Spain
| | - Antonio Garcia-Hermoso
- Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNA, 31008 Pamplona, Spain
- Physical Activity, Sport and Health Sciences Laboratory, University of Santiago de Chile, Santiago 9170020, Chile
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Law EH, Jiang R, Kaczynski A, Mühlbacher A, Pickard AS. The Role of Personality in Treatment-Related Outcome Preferences Among Pharmacy Students. AMERICAN JOURNAL OF PHARMACEUTICAL EDUCATION 2019; 83:6891. [PMID: 31619813 PMCID: PMC6788147 DOI: 10.5688/ajpe6891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 05/21/2018] [Indexed: 06/10/2023]
Abstract
Objective. To examine whether personality traits, particularly conscientiousness and agreeableness, were associated with systematic differences in health outcome preferences in cancer treatment scenarios among second-year Doctor of Pharmacy students. Methods. An online survey that quantified outcome preferences using profile best-worst scaling tasks was administered to pharmacy students (n=185). The Big Five personality inventory was used to categorize respondents into tertile-based levels of each trait. Treatment-related health outcomes were described using the EQ-5D-Y system and framed with hypothetical cancer treatment scenarios. Preferences were obtained using count analysis for each treatment-related outcome, and differences based on the level of trait were tested using analysis of variance. Logistic regression was used to test for significant associations between higher levels of a trait and choosing dead over a severe health state. Results. Higher conscientiousness was associated with students who had an approximately 20% more positive preference for "no problems" in the Usual Activities and Pain/Discomfort attributes, as well as a 19% more negative preference for "a lot of problems" in the Pain/Discomfort attribute. No differences in treatment preferences were observed across agreeableness tertiles. Higher levels of personality traits were not significantly associated with choosing death over being in moderate health. Conclusion. Conscientiousness appears to be a factor in treatment-related outcome preferences among pharmacy students. Individuals with higher levels of conscientiousness may be more likely to recommend treatments that are less likely to cause pain or discomfort and negatively impact a patient's usual activities.
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Affiliation(s)
- Ernest H. Law
- College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois
| | - Ruixuan Jiang
- College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois
| | - Anika Kaczynski
- German Center for Neurodegenerative Diseases (DZNE), Greifswald, Germany
| | - Axel Mühlbacher
- Institute of Health Economics and Health Care Management, Neubrandenburg, Germany
| | - A. Simon Pickard
- College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois
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Song HJ, Park H, Park SY, Lee EK, Ha SY, Park SY, Bae EJ, Ku H. Estimation of Health Utilities Based on the Response to Treatment in Atopic Dermatitis: a Population-based Study. Clin Ther 2019; 41:700-713. [PMID: 30827751 DOI: 10.1016/j.clinthera.2019.02.007] [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: 12/06/2018] [Revised: 01/19/2019] [Accepted: 02/10/2019] [Indexed: 11/25/2022]
Abstract
PURPOSE This study estimated utility weights based on the response to treatment for atopic dermatitis in the general population. METHODS The Korean general population aged 20-60 years was stratified by using a random sampling method based on age and sex. Two hypothetical health states of atopic dermatitis were developed: response to treatment and no response to treatment. Health utility values were estimated by using time trade-off (TTO) based on a period of 10 years, TTO based on life expectancy, and EuroQol 5-Dimension (EQ-5D) including a visual analog scale (VAS). The mean utility value and 95% CI were derived, and comparisons of subgroups using the t test and ANOVA were performed. We conducted a multilevel analysis after controlling the sociodemographic variables to consider repeated measures. FINDINGS A total of 155 participants were included in the survey. Their mean age was 39.7 years; 58.7% of participants were women. The mean health utility values for response and no response using TTO based on 10 years were 0.847 and 0.380, respectively. The estimated health utility values of response and no response were 0.865 and 0.476 using TTO based on life expectancy, and 0.814 and 0.279 using EQ-5D. For VAS, the response and no response were 0.744 and 0.322. After controlling the covariates, the important factors that affected utility values were response and no response to treatment (P < 0.001). IMPLICATIONS This study showed that the utility weights of people with no response to atopic dermatitis treatment were lower compared with response from the general population. Health care providers should therefore consider symptom control as an important factor affecting the quality of life of those with atopic dermatitis.
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Affiliation(s)
- Hyun Jin Song
- College of Pharmacy, University of Florida, Gainesville, FL, USA
| | | | | | - Eui-Kyung Lee
- School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - So-Young Ha
- School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
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Health Effects of Air Pollution in China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15071471. [PMID: 30002305 PMCID: PMC6068713 DOI: 10.3390/ijerph15071471] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 07/05/2018] [Accepted: 07/09/2018] [Indexed: 11/24/2022]
Abstract
Background Rapid economic and social development in China has resulted in severe air pollution and consequent adverse impacts on society. The health effects of air pollution have been widely studied. Methods Using information from the China Health and Retirement Longitudinal Study (CHARLS) database, we established a hierarchical linear model combining pollution and socioeconomic and psychosocial variables to examine the effects of air pollution on public health in China. Local air pollution was characterized in multiple dimensions. Results The relationship of health to its determinants greatly differed between Eastern and Central/Western China. Higher education, higher income level, better life satisfaction, and long-term marriage were significantly associated with better health status among Chinese. In addition, regional healthcare resources were positively associated with the health of residents. As indicated by the hierarchical model with health as dependent variable, in Central/Western China, longest duration of good air quality in spring/summer was positively associated with health (estimated coefficient = 0.067, standard error = 0.026), while the mean Air Quality Index (AQI) in autumn/winter was inversely associated with health (estimated coefficient = −0.082, standard error = 0.031). Good air quality in the current study is defined as daily average AQI less than 35. Conclusions Duration (in days) of acceptable air quality was particularly important for improving public health. Future policies should target increased duration of good air quality while managing air pollution by controlling or decreasing severe air pollution.
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Pickard AS, Jalundhwala YJ, Bewsher H, Sharp LK, Walton SM, Schumock GT, Caskey RN. Lifestyle-related attitudes: do they explain self-rated health and life-satisfaction? Qual Life Res 2018; 27:1227-1235. [PMID: 29302851 DOI: 10.1007/s11136-017-1774-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/27/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Strategies to improve public health may benefit from targeting specific lifestyles associated with poor health behaviors and outcomes. The aim of this study was to characterize and examine the relationship between health and lifestyle-related attitudes (HLAs) and self-rated health and life-satisfaction. METHODS Secondary analyses were conducted on data from a 2012 community wellness survey in Kirklees, UK. Using a validated HLA tool, respondents (n = 9130) were categorized into five segments: health conscious realists (33%), balanced compensators (14%), live-for-todays (18%), hedonistic immortals (10%), and unconfident fatalists (25%). Multivariate regression was used to examine whether HLAs could explain self-rated health using the EQ-5D visual analog scale (EQ-VAS) and life-satisfaction. Health conscious realists served as the reference group. RESULTS Self-rated health differed by HLA, with adjusted mean EQ-VAS scores being significantly higher (better) among balanced compensators (1.15, 95% CI 0.27, 2.03) and lower scores among unconfident fatalists (- 9.02, 95% CI - 9.85, - 8.21) and live-for-todays (- 1.96, 95% CI - 2.80, - 1.14). Balanced compensators were less likely to report low life-satisfaction (OR 0.75, 95% CI 0.62, 0.90), while unconfident fatalists were most likely to have low life-satisfaction (OR 3.51, 95% CI 2.92, 4.23). SIGNIFICANCE Segmentation by HLA explained differences in self-rated health and life-satisfaction, with unconfident fatalists being a distinct segment with significantly worse health perceptions and life-satisfaction. Health promotion efforts may benefit from considering the HLA segment that predominates a patient group, especially unconfident fatalists.
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Affiliation(s)
- A Simon Pickard
- Department of Pharmacy Systems, Outcomes and Policy, College of Pharmacy, University of Illinois at Chicago, 833 S Wood St, Chicago, IL, 60612, USA. .,Center for Pharmacoepidemiology and Pharmacoeconomic Research, College of Pharmacy, University of Illinois at Chicago, 833 S Wood St, Chicago, IL, 60612, USA.
| | - Yash J Jalundhwala
- Department of Pharmacy Systems, Outcomes and Policy, College of Pharmacy, University of Illinois at Chicago, 833 S Wood St, Chicago, IL, 60612, USA
| | - Helen Bewsher
- Kirklees Council, The University of Manchester, Huddersfield, West Yorkshire, United Kingdom
| | - Lisa K Sharp
- Department of Pharmacy Systems, Outcomes and Policy, College of Pharmacy, University of Illinois at Chicago, 833 S Wood St, Chicago, IL, 60612, USA.,Center for Pharmacoepidemiology and Pharmacoeconomic Research, College of Pharmacy, University of Illinois at Chicago, 833 S Wood St, Chicago, IL, 60612, USA
| | - Surrey M Walton
- Department of Pharmacy Systems, Outcomes and Policy, College of Pharmacy, University of Illinois at Chicago, 833 S Wood St, Chicago, IL, 60612, USA.,Center for Pharmacoepidemiology and Pharmacoeconomic Research, College of Pharmacy, University of Illinois at Chicago, 833 S Wood St, Chicago, IL, 60612, USA
| | - Glen T Schumock
- Department of Pharmacy Systems, Outcomes and Policy, College of Pharmacy, University of Illinois at Chicago, 833 S Wood St, Chicago, IL, 60612, USA.,Center for Pharmacoepidemiology and Pharmacoeconomic Research, College of Pharmacy, University of Illinois at Chicago, 833 S Wood St, Chicago, IL, 60612, USA
| | - Rachel N Caskey
- Internal Medicine and Pediatrics, College of Medicine, University of Illinois at Chicago, 840 S Wood St, Chicago, IL, 60612, USA
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Lee HJ, Ock M, Kim KP, Jo MW. Estimation of population-based utility weights for gastric cancer-related health states. Patient Prefer Adherence 2018; 12:909-918. [PMID: 29872276 PMCID: PMC5973464 DOI: 10.2147/ppa.s151946] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND This study aimed to generate utility weights of gastric cancer-related health states from the perspective of the Korean general population. METHODS The Korean adults (age ≥19 years) included in the study were sampled using multistage quota sampling methods stratified by sex, age, and education level. Nine scenarios for hypothetical gastric cancer-related health states were developed and reviewed. After consenting to participate, the subjects were surveyed by trained interviewers using a computer-assisted personal interview method. Participants were asked to perform standard gamble tasks to measure the utility weights of 5 randomly assigned health states (from among nine scenarios). The mean utility weight was calculated for each health state. RESULTS Three hundred twenty-six of the 407 adults who completed this study were included in the analysis. The mean utility weights from the standard gamble were 0.857 (no gastric cancer with Helicobacter pylori infection), 0.773 (early gastric cancer [EGC] with endoscopic surgery), 0.779 (EGC with subtotal gastrectomy), 0.767 (EGC with total gastrectomy), 0.602 (advanced gastric cancer with subtotal gastrectomy and adjuvant chemotherapy), 0.643 (advanced gastric cancer with total gastrectomy and adjuvant chemotherapy), 0.522 (advanced gastric cancer with extended gastrectomy and adjuvant chemotherapy), 0.404 (metastatic gastric cancer with palliative chemotherapy), and 0.399 (recurrent gastric cancer with palliative chemotherapy). CONCLUSION This study was the first to comprehensively estimate the utility weights of gastric cancer-related health states in a general population. The utility weights derived from this study could be useful for future economic evaluations related to gastric cancer interventions.
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Affiliation(s)
- Hyeon-Jeong Lee
- Department of Preventive Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Minsu Ock
- Department of Preventive Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Kyu-Pyo Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Min-Woo Jo
- Department of Preventive Medicine, University of Ulsan College of Medicine, Seoul, Korea
- Correspondence: Min-Woo Jo, Department of Preventive Medicine, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea, Tel +822 3010 4264, Fax +822 477 2898, Email
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Law EH, Pickard AL, Kaczynski A, Pickard AS. Choice Blindness and Health-State Choices among Adolescents and Adults. Med Decis Making 2017; 37:680-687. [PMID: 28380316 DOI: 10.1177/0272989x17700847] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To assess the feasibility and validity of using a discrete choice experiment format to elicit health preferences in adolescents by comparing illogical choices and choice-blindness rates between adults and adolescents; and to explore the relationship between personality traits and health-state choices. METHODS A convenience sample of adults and adolescents (12 to 17 y old) were recruited from around Chicago, USA. A personality inventory was administered, followed by pairwise comparisons of 6 health-state scenarios which asked each candidate to select their preferred choice. Health-state descriptions were based on a simplified 3-dimension version of the EQ-5D (mobility, pain, depression, each with 3 levels). For 2 scenarios, the respondent's preferred choice was switched; if the respondent did not notice the switch they were considered "choice blind". Logistic regression evaluated the association of personality, gender, and age with choice blindness and health-state choice. RESULTS Ninety-nine respondents were recruited (44% adults). Comparing adolescents to adults, there was no significant difference in the rate of illogical preferences (9% v. 12%) or in preferring dead to the worst health state (56% v. 64%) ( P > 0.05). Choice-blindness rates were significantly higher in adolescents (35%) than adults (9%) ( P < 0.01). The adjusted odds of choice blindness in adolescents was 6.6 (95% CI = 1.8 to 23.8; P = 0.004). Conscientiousness was significantly associated with health-state choice in 3 of the 6 models predicting health-state choice (using P < 0.1 as a threshold). CONCLUSIONS The results of this exploratory study suggest it is feasible to conduct choice experiments in adolescents; however, adolescents are significantly more likely to demonstrate choice blindness. Psychological traits may be noteworthy predictors of health-state choices, with conscientiousness independently associated with several health-state choices.
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Affiliation(s)
- Ernest H Law
- Department of Pharmacy Systems, Outcomes and Policy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA (EHL, SP)
| | | | - Anika Kaczynski
- Institute of Health Economics and Health Care Management, Hochschule Neubrandenburg, Neubrandenburg, Germany (AK)
| | - A Simon Pickard
- Department of Pharmacy Systems, Outcomes and Policy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA (EHL, SP).,Second City Outcomes Research LLC, Chicago, IL, USA (ALP, SP).,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (SP)
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Assadi R, Afshari R. Suicidal Attempt With Intentional Poisoning Seems a Comorbid Illness With an Increased Burden. INTERNATIONAL JOURNAL OF HIGH RISK BEHAVIORS & ADDICTION 2016; 5:e24380. [PMID: 27162760 PMCID: PMC4859999 DOI: 10.5812/ijhrba.24380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 02/21/2015] [Accepted: 04/08/2015] [Indexed: 01/23/2023]
Abstract
BACKGROUND In measuring health utilities, the primary reason for selecting patients as a source for valuations is that they directly experience the impact of the disease. OBJECTIVES Accordingly, the aim of this study was to examine the variation in generic utility measures with respect to acute poisonings by including a comparison between those subjects who had high intention and low intention to commit suicide. PATIENTS AND METHODS We evaluated the responses of patients who had attempted suicide and were admitted to a toxicology ward. We used multiple methods, including TTO, VAS, and EQ-5D. RESULTS We reviewed the collected questionnaires of one hundred patients admitted to the medical toxicology ward of Emam Reza teaching hospital in Mashhad, Iran. Our results show that the mental state after an incomplete suicide attempt can present either a real desire for suicide or a desire for attention from relatives and rejection of life problems. CONCLUSIONS This study demonstrates that the mental states associated with specific diseases should not be ignored in evaluating health states. Although there are benefits to relying on expert panels and the general population in evaluating various health states, attention to the particular health states of the patients (taking into account their associated mental well-being) should also be utilized.
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Affiliation(s)
- Reza Assadi
- Medical Toxicology Research Center, Mashhad University of Medical Sciences, Mashhad, IR Iran
| | - Reza Afshari
- Addiction Research Center, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, IR Iran
- BC Disease Control Center, Vancouver, Canada
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Coca Perraillon M, Shih YCT, Thisted RA. Predicting the EQ-5D-3L Preference Index from the SF-12 Health Survey in a National US Sample: A Finite Mixture Approach. Med Decis Making 2015; 35:888-901. [PMID: 25840902 PMCID: PMC4574086 DOI: 10.1177/0272989x15577362] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Accepted: 02/20/2015] [Indexed: 11/17/2022]
Abstract
BACKGROUND . When data on preferences are not available, analysts rely on condition-specific or generic measures of health status like the SF-12 for predicting or mapping preferences. Such prediction is challenging because of the characteristics of preference data, which are bounded, have multiple modes, and have a large proportion of observations clustered at values of 1. METHODS . We developed a finite mixture model for cross-sectional data that maps the SF-12 to the EQ-5D-3L preference index. Our model characterizes the observed EQ-5D-3L index as a mixture of 3 distributions: a degenerate distribution with mass at values indicating perfect health and 2 censored (Tobit) normal distributions. Using estimation and validation samples derived from the Medical Expenditure Panel Survey 2000 dataset, we compared the prediction performance of these mixture models to that of 2 previously proposed methods: ordinary least squares regression (OLS) and two-part models. RESULTS . Finite mixture models in which predictions are based on classification outperform two-part models and OLS regression based on mean absolute error, with substantial improvement for samples with fewer respondents in good health. The potential for misclassification is reflected on larger root mean square errors. Moreover, mixture models underperform around the center of the observed distribution. CONCLUSIONS . Finite mixtures offer a flexible modeling approach that can take into account idiosyncratic characteristics of the distribution of preferences. The use of mixture models allows researchers to obtain estimates of health utilities when only summary scores from the SF-12 and a limited number of demographic characteristics are available. Mixture models are particularly useful when the target sample does not have a large proportion of individuals in good health.
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Affiliation(s)
- Marcelo Coca Perraillon
- Marcelo Coca Perraillon, Department of Public Health Sciences, University of Chicago, 5841 S. Maryland Avenue, MC 2007, Chicago IL 60637; telephone: (773) 702-2453; e-mail:
| | - Ya-Chen Tina Shih
- Department of Public Health Sciences, University of Chicago, Chicago, IL (MCP)
- Section of Cancer Economics and Policy, Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, TX (YCTS)
- Departments of Public Health Sciences and Statistics, University of Chicago, Chicago, IL (RAT)
| | - Ronald A. Thisted
- Department of Public Health Sciences, University of Chicago, Chicago, IL (MCP)
- Section of Cancer Economics and Policy, Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, TX (YCTS)
- Departments of Public Health Sciences and Statistics, University of Chicago, Chicago, IL (RAT)
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Chapman BP, Hampson S, Clarkin J. Personality-informed interventions for healthy aging: conclusions from a National Institute on Aging work group. Dev Psychol 2014; 50:1426-41. [PMID: 23978300 PMCID: PMC3940665 DOI: 10.1037/a0034135] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We describe 2 frameworks in which personality dimensions relevant to health, such as Conscientiousness, can be used to inform interventions designed to promote health aging. First, contemporary data and theory do not suggest that personality is "immutable," but instead focus on questions of who changes, in what way, why, when, and how. In fact, the notion that personality could be changed was part and parcel of many schools of psychotherapy, which suggested that long-term and meaningful change in symptoms could not be achieved without change in relevant aspects of personality. We review intervention research documenting change in personality. On the basis of an integrative view of personality as a complex system, we describe a bottom-up model of change in which interventions to change basic personality processes eventuate in changes at the trait level. A 2nd framework leverages the descriptive and predictive power of personality to tailor individual risk prediction and treatment, as well as refine public health programs, to the relevant dispositional characteristics of the target population. These methods dovetail with, and add a systematic and rigorous psychosocial dimension to, the personalized medicine and patient-centeredness movements in medicine. In addition to improving health through earlier intervention and increased fit between treatments and persons, cost-effectiveness improvements can be realized by more accurate resource allocation. Numerous examples from the personality, health, and aging literature on Conscientiousness and other traits are provided throughout, and we conclude with a series of recommendations for research in these emerging areas.
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Affiliation(s)
| | | | - John Clarkin
- Department of Psychiatry, Weill Cornell Medical College
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Pickard AS, Tawk R, Shaw JW. The effect of chronic conditions on stated preferences for health. THE EUROPEAN JOURNAL OF HEALTH ECONOMICS : HEPAC : HEALTH ECONOMICS IN PREVENTION AND CARE 2013; 14:697-702. [PMID: 22941035 DOI: 10.1007/s10198-012-0421-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Accepted: 08/16/2012] [Indexed: 05/26/2023]
Abstract
BACKGROUND While patients tend to value their own health state systematically higher than others would rate it, it is less clear whether stated preferences for hypothetical health states differ between persons with and without specific medical conditions. The aim of this study was to determine if specific conditions affect the valuation of health using a generic measure. METHODS Using data from the US Valuation of EQ-5D Health States (n = 3,773), we focused on six conditions of interest (COI), e.g., arthritis, diabetes, depression, heart failure, cancer, and hay fever, and time trade-off values for 12 of 243 EQ-5D health states. For each COI, regression models compared differences in pooled health state preferences among four groups: COI, COI plus one or more additional conditions, no COI but other conditions, or no chronic conditions. RESULTS No differences in health state preferences were found among the four groups for any of the COIs except for patients with cancer and additional conditions, whose mean scores were 0.07 lower compared to no chronic conditions (P < 0.01). The strongest predictors of health state preferences were race/ethnicity, age, and marital status. CONCLUSIONS Most self-reported chronic conditions had a trivial impact on preferences for hypothetical health states, which suggests that utility algorithms for generic preference-based measures will be similar when estimated from preferences of the general population or patients with chronic illness, conceivably because both types of respondents have not experienced many health states in the classifier system.
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Affiliation(s)
- A Simon Pickard
- Center for Pharmacoeconomic Research, College of Pharmacy, University of Illinois at Chicago, IL 60612, USA.
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14
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The effect of personality dimensions on functional outcomes in mood disorders. Adv Ther 2013; 30:671-83. [PMID: 23839119 DOI: 10.1007/s12325-013-0042-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Functional impairment associated with mood disorders may be related to a characteristic "profile" of normative personality dimensions. METHODS Individuals (age ≥ 18 years) with MDD (n = 400) or BD (n = 317), as defined by the Diagnostic and Statistical Manual of Mental Disorders, fourth edition, text revision (DSM-IV-TR), were enrolled in the IMDCP. Personality was evaluated with the Neuroticism-Extraversion-Openness Five-Factor Inventory (NEO-FFI), and functionality with the Sheehan Disability Scale and Endicott Work Productivity Scale. Path analysis using linear multiple regressions was performed to identify direct and indirect effects of personality on functional impairment. RESULTS Lower conscientiousness exerted a significant direct effect on global (p = 0.017) and family life dysfunction in individuals with MDD (p = 0.002), as well as lower work productivity in both MDD (p = 0.020) and BD (p = 0.018). Lower extraversion exerted a significant direct effect on social impairment in individuals with BD (p = 0.017). Higher neuroticism and agreeableness as well as lower extraversion exerted indirect effects on global and social dysfunction in individuals with MDD via their effects on depression severity. In BD, higher neuroticism and openness indirectly affected global dysfunction. Family dysfunction was indirectly affected by higher neuroticism and openness as well as lower extraversion in MDD and BD. CONCLUSION The results suggest that discrete personality dimensions may exert direct and indirect effects on functional outcomes in individuals with mood disorders. Personalizing disease management approaches in mood disorders with emphasis on vocational rehabilitation may benefit from measurement and intervention targeting personality.
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Whynes DK, McCahon RA, Ravenscroft A, Hodgkinson V, Evley R, Hardman JG. Responsiveness of the EQ-5D health-related quality-of-life instrument in assessing low back pain. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2013; 16:124-32. [PMID: 23337223 DOI: 10.1016/j.jval.2012.09.003] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 08/16/2012] [Accepted: 09/04/2012] [Indexed: 05/17/2023]
Abstract
OBJECTIVE To compare the responsiveness of the EuroQol five-dimensional questionnaire (EQ-5D) generic quality-of-life instrument with that of specific instruments-the Brief Pain Inventory (BPI) and the Oswestry Disability Index (ODI)-in assessing low back pain. METHODS Data were obtained from a group of patients receiving epidural steroid injections. We assessed responsiveness by using correlation, by estimating standardized response means, by receiver operating characteristic curve analysis, and by comparing the minimum clinically important differences peculiar to each of the instruments. RESULTS ODI, BPI, and EQ-5D index scores, and changes in scores, were found to be correlated. Estimated standardized response means and receiver operating characteristic curve analysis suggested lower responsiveness for the EQ-5D index score. Clinically significant categories of mild, moderate, and severe BPI pain intensity translated into progressively and significantly lower mean EQ-5D index scores. An increase or a decrease in severity level reported on any of the five EQ-5D dimensions was associated with significant changes (with appropriate signs) in the condition-specific scores. No change in severity in any EQ-5D dimension was associated with no change in the specific scores. Significant changes in the EQ-5D index scores were associated with clinically important changes in the ODI and BPI scores. Correlation between index scores and responses on EQ-5D's visual analogue scale was only moderate. CONCLUSIONS The EQ-5D index is less responsive than instruments specific to pain measurement, although it is capable of indicating clinically important changes. The lower responsiveness arises from EQ-5D's more limited gradation of severity and its multidimensionality.
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Affiliation(s)
- D K Whynes
- School of Economics, University of Nottingham, Nottingham, UK.
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Rajan M, Lai KC, Tseng CL, Qian S, Selim A, Kazis L, Pogach L, Sinha A. Estimating utilities for chronic kidney disease, using SF-36 and SF-12-based measures: challenges in a population of veterans with diabetes. Qual Life Res 2012; 22:53-64. [PMID: 22392523 DOI: 10.1007/s11136-012-0139-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2012] [Indexed: 01/15/2023]
Abstract
PURPOSE Using transformations of existing quality-of-life data to estimate utilities has the potential to efficiently provide investigators with utility information. We used within-method and across-method comparisons and estimated disutilities associated with increasing chronic kidney disease (CKD) severity. METHODS In an observational cohort of veterans with diabetes (DM) and pre-existing SF-36/SF-12 responses, we used six transformation methods (SF-12 to EQ-5D, SF-36 to HUI2, SF-12 to SF-6D, SF-36 to SF-6D, SF-36 to SF-6D (Bayesian method), and SF-12 to VR-6D) to estimate unadjusted utilities. CKD severity was staged using glomerular filtration rate estimated from serum creatinines, with the modification of diet in renal disease formula. We then used multivariate regression to estimate disutilities specifically associated with CKD severity stage. RESULTS Of 67,963 patients, 22,273 patients had recent-onset DM and 45,690 patients had prevalent DM. For the recent-onset group, the adjusted disutility associated with CKD derived from the six transformation methods ranged from 0.0029 to 0.0045 for stage 2; -0.004 to -0.0009 for early stage 3; -0.017 to -0.010 for late stage 3; -0.023 to -0.012 for stage 4; -0.078 to -0.033 for stage 5; and -0.012 to -0.001 for ESRD/dialysis. CONCLUSION Disutility did not increase monotonically as CKD severity increased. Differences in disutilities estimated using the six different methods were found. Both findings have implications for using such estimates in economic analyses.
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Affiliation(s)
- Mangala Rajan
- Center for Healthcare Knowledge Management, Veterans Health Administration New Jersey, East Orange, NJ, USA
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Chapman BP, Roberts B, Duberstein P. Personality and longevity: knowns, unknowns, and implications for public health and personalized medicine. J Aging Res 2011; 2011:759170. [PMID: 21766032 PMCID: PMC3134197 DOI: 10.4061/2011/759170] [Citation(s) in RCA: 134] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Accepted: 05/19/2011] [Indexed: 11/23/2022] Open
Abstract
We review evidence for links between personality traits and longevity. We provide an overview of personality for health scientists, using the primary organizing framework used in the study of personality and longevity. We then review data on various aspects of personality linked to longevity. In general, there is good evidence that higher level of conscientiousness and lower levels of hostility and Type D or "distressed" personality are associated with greater longevity. Limited evidence suggests that extraversion, openness, perceived control, and low levels of emotional suppression may be associated with longer lifespan. Findings regarding neuroticism are mixed, supporting the notion that many component(s) of neuroticism detract from life expectancy, but some components at some levels may be healthy or protective. Overall, evidence suggests various personality traits are significant predictors of longevity and points to several promising directions for further study. We conclude by discussing the implications of these links for epidemiologic research and personalized medicine and lay out a translational research agenda for integrating the psychology of individual differences into public health and medicine.
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Affiliation(s)
- Benjamin P. Chapman
- Laboratory of Personality and Development and Rochester Health Decision Making Group, Department of Psychiatry, University of Rochester Medical Center, 300 Crittenden, Rochester, NY 14607, USA
| | - Brent Roberts
- Personality Interest Group, Department of Psychology, University of Illinoi, Rochester, NY 14607, USA
| | - Paul Duberstein
- Laboratory of Personality and Development and Rochester Health Decision Making Group, Department of Psychiatry, University of Rochester Medical Center, 300 Crittenden, Rochester, NY 14607, USA
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