Estimation of Health-Related Quality of Life Losses Owing to a Technological Disaster in Brazil Using EQ-5D-3L: A Cross-Sectional Study.

OBJECTIVES: In 2015, a dam collapsed at Samarco iron ore mine in the municipality of Mariana, Brazil, and contaminated more than 600 km of watercourses and destroyed almost 1600 acres of vegetation. Nineteen people died and more than 600 families lost their homes. This study aimed to estimate health-related quality of life (HRQoL) losses owing to this disaster. METHODS: We collected data from a probabilistic sample of 459 individuals aged 15 years or older. Household face-to-face interviews were conducted in December 2018. Pre-event data were not available for this population, so respondents were asked to evaluate at present and in retrospect their health status using EQ-5D-3L. The Minas Gerais societal value sets for EQ-5D-3L health preferences, estimated in 2011, were used to calculate utility losses. The health loss estimation from EQ-5D will form the basis for the calculation of compensation payments for the victims. RESULTS: Approximately 74% of the study population suffered some HRQoL loss. On average, EQ-5D index values decreased from 0.95 to 0.76. The greatest effects were observed for the anxiety/depression dimension, followed by pain/discomfort. Before the tragedy, the proportion of individuals with severe anxiety/depression and pain/discomfort was equal to 1% rising to 23% and 11%, respectively. CONCLUSIONS: Catastrophic losses owing to the Samarco disaster were found. The EQ-5D-3L instrument showed feasibility and sensitiveness to measure HRQoL losses owing to a negative health shock in a low-income Brazilian population.

EQ-5D-5L population norms and health inequalities for Trinidad and Tobago.

The EQ-5D instrument is now used in many health systems as a health outcomes measure. Recently an EQ-5D valuation study was conducted for Trinidad and Tobago, but thus far there have been no population norms published for Trinidad and Tobago or for any Caribbean country. The objective of this study is to provide a set of population norms, and to investigate inequalities in health in Trinidad and Tobago. The EQ-5D-5L questionnaire was included in the 2012/2013 Adult Population Survey of the Global Entrepreneurship Monitor for Trinidad and Tobago. This survey covered a representative sample of 2,036 adults aged 18 and over. Demographic data and self-reported health using EQ-5D-5L were collected. The Trinidad and Tobago value set was used to obtain EQ-5D index values. The Kakwani index and logistic regression models were used to evaluate inequalities in health. Mean EQ-5D index values and EQ-VAS values were calculated by age group, ethnicity, gender, income, educational attainment, employment status and place of residence. The 10 most commonly observed EQ-5D-5L states accounted for 90% of the respondents. The mean VAS value for the sample was 83.6 and the mean EQ-5D-5L index value was 0.95. Pain/discomfort was found to be the EQ-5D dimension with the highest prevalence of reported problems with 22% of the population reporting pain at any level. Self-care was the dimension with the lowest prevalence of problems reported at any level (3%). Health declines with increasing age, and men reported fewer problems and higher levels of self-reported health than women. Age, gender and education level were found to be important drivers of health status as measured by the EQ-5D instrument. Being in a very low income group was also observed to affect EQ-VAS values among younger respondents. The population norms provided in this study can be used by clinicians, academics and policy makers in several ways. They can be used in comparing different demographic groups or patient groups, or as a basis for tracking the progress of patients through a treatment regimen. They can also provide a baseline for cost utility analysis of health interventions for Trinidad and Tobago.

Measuring the Benefits of Healthcare: DALYs and QALYs - Does the Choice of Measure Matter? A Case Study of Two Preventive Interventions.

BACKGROUND: The measurement of health benefits is a key issue in health economic evaluations. There is very scarce empirical literature exploring the differences of using quality-adjusted life years (QALYs) or disability-adjusted life years (DALYs) as benefit metrics and their potential impact in decision-making. METHODS: Two previously published models delivering outputs in QALYs, were adapted to estimate DALYs: a Markov model for human papilloma virus (HPV) vaccination, and a pneumococcal vaccination deterministic model (PNEUMO). Argentina, Chile, and the United Kingdom studies were used, where local EQ-5D social value weights were available to provide local QALY weights. A primary study with descriptive vignettes was done (n = 73) to obtain EQ-5D data for all health states included in both models. Several scenario analyses were carried-out to evaluate the relative importance of using different metrics (DALYS or QALYs) to estimate health benefits on these economic evaluations. RESULTS: QALY gains were larger than DALYs avoided in all countries for HPV, leading to more favorable decisions using the former. With discounting and age-weighting - scenario with greatest differences in all countries - incremental DALYs avoided represented the 75%, 68%, and 43% of the QALYs gained in Argentina, Chile, and United Kingdom respectively. Differences using QALYs or DALYs were less consistent and sometimes in the opposite direction for PNEUMO. These differences, similar to other widely used assumptions, could directly influence decision-making using usual gross domestic products (GDPs) per capita per DALY or QALY thresholds. CONCLUSION: We did not find evidence that contradicts current practice of many researchers and decision-makers of using QALYs or DALYs interchangeably. Differences attributed to the choice of metric could influence final decisions, but similarly to other frequently used assumptions.

Calidad de vida relacionada con salud en la población Colombiana: ¿cómo valoran los colombianos su estado de salud? / Quality of life related to health in the Colombian population: how do Colombians perceive their health condition?

RESUMEN Objetivo Determinar la percepción sobre la calidad de vida relacionada con salud (CVrS) que tiene la población adulta en Colombia. Métodos Encuesta poblacional en una muestra representativa de la población rural y urbana, de 18 y más años. Se midió la CVrS con el instrumento EQ5D-3L y la escala visual análoga, como parte de la cuarta Encuesta Nacional de Salud Mental. Las estimaciones fueron ajustadas por el diseño de muestreo y se acompañan de intervalos de confianza al 95 %. Resultados 1 0867 personas completaron la medición; 69,7 % (IC95 % 66,9 a 68,9) de la población reporto estar en "salud completa"; la mayor proporción de personas valoraron su salud por encima de 80 puntos. La presencia de "moderado dolor o malestar", seguida de estar "moderadamente angustiado o deprimido" fueron las alteraciones más frecuentes. Los adultos jóvenes tienden a valorar mejor su salud que los adultos mayores. No hay diferencias en la percepción de la salud entre regiones del país. Conclusiones La calidad de vida relacionada con salud en la población colombiana es mayor de 80 puntos en una escala de 1 a 100. Las alteraciones como angustia y depresión y la percepción del dolor, fueron las más comúnmente reportadas por los colombianos. La situación de pobreza y el bajo nivel educacional son determinantes de la valoración que hacen los colombianos de su CVrS.(AU)

ABSTRACT Objective To determine the perception about quality of life related to health in the adult population of Colombia. Methods Population-based survey applied on a representative sample of the Colombian rural and urban population, aged 18 years or more. Quality of life related to health was measured using the generic EQ5D instrument and the analogue visual scale as part of the fourth National Mental Health Survey. Estimates were accompanied by 95 % confidence intervals and were adjusted by the sampling design. Results 10 867 people aged 18 years or older completed the measurement. 69.7 % (CI95 %; 66.9-68.9) of the population reported being "completely healthy". Most of the population rated their health condition above 80 points. The presence of "moderate pain or discomfort", followed by being "moderately distressed or depressed" were the most frequent alterations. Young adults tend to perceive their health better than older adults. There is no difference in the perception of health between regions of the country. Conclusions Quality of life related to health in the Colombian population is greater than 80 points on a scale of 1 to 100. Alterations such as angst and depression and the perception of pain were the most frequently reported by Colombians. Poverty and a low level of education are determinants of the perception of Colombians regarding their quality of life related to health.(AU)

[Quality of life related to health in the Colombian population: how do Colombians perceive their health condition?] / Calidad de vida relacionada con salud en la población Colombiana: ¿cómo valoran los colombianos su estado de salud?

OBJECTIVE: To determine the perception about quality of life related to health in the adult population of Colombia. METHODS: Population-based survey applied on a representative sample of the Colombian rural and urban population, aged 18 years or more. Quality of life related to health was measured using the generic EQ5D instrument and the analogue visual scale as part of the fourth National Mental Health Survey. Estimates were accompanied by 95 % confidence intervals and were adjusted by the sampling design. RESULTS: 10 867 people aged 18 years or older completed the measurement. 69.7 % (CI95 %; 66.9-68.9) of the population reported being "completely healthy". Most of the population rated their health condition above 80 points. The presence of "moderate pain or discomfort", followed by being "moderately distressed or depressed" were the most frequent alterations. Young adults tend to perceive their health better than older adults. There is no difference in the perception of health between regions of the country. CONCLUSIONS: Quality of life related to health in the Colombian population is greater than 80 points on a scale of 1 to 100. Alterations such as angst and depression and the perception of pain were the most frequently reported by Colombians. Poverty and a low level of education are determinants of the perception of Colombians regarding their quality of life related to health.

OBJETIVO: Determinar la percepción sobre la calidad de vida relacionada con salud (CVrS) que tiene la población adulta en Colombia. MÉTODOS: Encuesta poblacional en una muestra representativa de la población rural y urbana, de 18 y más años. Se midió la CVrS con el instrumento EQ5D-3L y la escala visual análoga, como parte de la cuarta Encuesta Nacional de Salud Mental. Las estimaciones fueron ajustadas por el diseño de muestreo y se acompañan de intervalos de confianza al 95 %. RESULTADOS: 1 0867 personas completaron la medición; 69,7 % (IC95 % 66,9 a 68,9) de la población reporto estar en "salud completa"; la mayor proporción de personas valoraron su salud por encima de 80 puntos. La presencia de "moderado dolor o malestar", seguida de estar "moderadamente angustiado o deprimido" fueron las alteraciones más frecuentes. Los adultos jóvenes tienden a valorar mejor su salud que los adultos mayores. No hay diferencias en la percepción de la salud entre regiones del país. CONCLUSIONES: La calidad de vida relacionada con salud en la población colombiana es mayor de 80 puntos en una escala de 1 a 100. Las alteraciones como angustia y depresión y la percepción del dolor, fueron las más comúnmente reportadas por los colombianos. La situación de pobreza y el bajo nivel educacional son determinantes de la valoración que hacen los colombianos de su CVrS.

Toward Explicit Prioritization for the Caribbean: An EQ-5D Value Set for Trinidad and Tobago.

BACKGROUND: Resource allocation decision making in the Caribbean can be greatly enhanced by the introduction of cost per quality-adjusted life-year (QALY) analysis on the basis of local preferences. In the valuation literature there have been recommendations for the elicitation methods of the EuroQol five-dimensional questionnaire (EQ-5D) that combine discrete-choice experiment (DCE) for bulk valuation with a time trade-off component for rescaling. OBJECTIVES: To create a three-level EQ-5D value set for Trinidad and Tobago using an elicitation method that takes into account the local constraints, and that can be easily deployed in other Caribbean islands. METHODS: A D-efficient DCE was completed by a representative sample of 307 adults. A time trade-off procedure was used to obtain values for rescaling the DCE model on a scale anchored at 0 (dead) and 1 (full health). RESULTS: A mixed logit analysis of the DCE data produced an internally valid model that is similar to the results obtained in earlier pilot studies. CONCLUSIONS: This EQ-5D value set allows cost per QALY analyses to be carried out on the basis of preferences from Trinidad and Tobago, and the approach to the DCE design can be taken for similar value sets to be created in the small, resource-constrained health systems of the Caribbean. Some guidelines for the initial application and introduction of cost per QALY analysis into the Trinidad and Tobago health system are also presented.

Logical Inconsistencies in 3 Preference Elicitation Methods for EQ-5D Health States: A Study in the Brazilian Population.

BACKGROUND: . Logical inconsistency for health states preferences occurs when one logically worse health state, in terms of quality of life, is ranked higher than a logically better health state. OBJECTIVE: . This study explores the presence of inconsistent responses for the EQ-5D health states valuations in a Brazilian population survey. It compares the level of inconsistency in 3 preference-based methods: ranking, visual analog scale (VAS), and time tradeoff (TTO). The influence of EQ-5D health state descriptions is explored by examining the distance between states using a city-block metric as an indicator of proximity. Moreover, it examines the association between formal education and the presence of inconsistencies, as well as the effect of removing inconsistent respondents on the estimation of social value sets from TTO and VAS. METHODS: . Data came from a valuation study with 3362 literate individuals aged between 18 and 64 years living in urban areas of Minas Gerais state, Brazil. Logical inconsistency was assessed using the percentage of inconsistent respondents and inconsistency rate. A logistic model was estimated to assess the association between formal education and the logical inconsistency. Societal preferences were estimated excluding inconsistent respondents considering city-block metric. RESULTS: . The percentage of inconsistent respondents and inconsistency rate are similar for TTO and ranking and lower for VAS. The probability of being inconsistent is higher among less educated groups in ranking and TTO. Inconsistency decreases with distance for all 3 methods. The removal of inconsistent individuals by considering city-block distance improves TTO estimation of social value sets. CONCLUSION: . Findings suggest that removal of inconsistencies in TTO should consider city-block distance. For VAS, inconsistencies are not associated with formal education and do not affect social value set estimation.

Brazilian Valuation of EQ-5D-3L Health States: Results from a Saturation Study.

BACKGROUND: Most EQ-5D-3L valuation studies include the same sample of health states that was used in the protocol of the original UK Measurement and Valuation of Health (MVH) study. Thus far, no studies using a time tradeoff utility elicitation method have been carried out using all 243 EQ-5D health states. Because the values and preferences regarding health outcomes differ among countries, it is essential to have country-specific data to enable local high-level decisions regarding resource allocation. This study developed a country-specific set of values for EQ-5D-3L health states. METHODS: A multicentric study was conducted in 4 Brazilian areas. A probabilistic sample of the general population, aged 18 to 64 y, stratified by age and gender, was surveyed. The interview followed a revised version of the MVH protocol, in which all 243 health states were valued. Each respondent ranked and valued 7 health states using the TTO in a home interview. RESULTS: Data were collected from 9148 subjects. The best-fitting regression model was an individual-level mixed-effects model without any interaction terms. The dimensions "Mobility" and "Usual Activities" were associated with higher losses in health state utility value. The "Anxiety/Depression" dimension was the domain that contributed to lower losses in health state utility value. CONCLUSIONS: This study generated significant insight into the Brazilian population's health preferences that can be applied to health technology assessment and economic analyses in Brazil. This information represents an important new tool that can be used in Brazilian health policy creation and evaluation.

EQ-5D-3L as a health measure of Brazilian adult population.

PURPOSE: This study explores the use of EQ-5D-3L as a measure of population health status in a Brazilian region with significant socioeconomic, demographic, and epidemiological heterogeneity. METHODS: Data came from a study of 3363 literate individuals aged between 18 and 64 years living in urban areas of the state of Minas Gerais. Descriptive analysis and logistic and OLS regression models were performed to analyze the relationship between EQ-5D-3L (descriptive system and EQ VAS) and other health (self-assessed health status and 8 self-reported diagnosed chronic diseases), socioeconomic (educational level and economic class), and demographic (gender and age) measures. Additionally, a grade of membership (GoM) analysis was performed to identify multidimensional health profiles. RESULTS: A total of 76 health statuses were identified in the Brazilian population. The most prevalent one is full health (44 % of the sample). Elderly people, women, and individuals with poor health and lower socioeconomic conditions generally report more health problems in the EQ-5D-3L dimensions. The GoM analysis demonstrated that health status of older individuals is associated with the socioeconomic condition. Arthritis exhibited the strongest association with the EQ-5D-3L instrument. CONCLUSIONS: The results indicate that EQ-5D-3L is a good measure of health status for the Brazilian population. The instrument has a good discriminatory capacity in terms of demographic, socioeconomic, and health measures. The high prevalence of individuals with full health may indicate the presence of ceiling effect. However, this prevalence is smaller than that in other countries.

What matters most?: evidence-based findings of health dimensions affecting the societal preferences for EQ-5D health states / O que importa mais?: evidências empíricas das dimensões que afetam as preferências sociais para estados de saúde do EQ-5D / ¿Qué es lo que más importa?: evidencias empíricas sobre las dimensiones que afectan a las preferencias sociales por los estados de salud en EQ-5D

This study analyzes how different health dimensions defined by the EQ-5D-3L instrument affect average individual preferences for health states. This analysis is an important benchmark for the incorporation of health technologies as it takes into consideration Brazilian population preferences in health resource allocation decisions. The EQ-5D instrument defines health in terms of five dimensions (mobility, daily activities, self-care activities, pain/discomfort, and anxiety/depression) each divided into three levels of severity. Data came from a valuation study with 3,362 literate individuals aged between 18 and 64 living in urban areas of Minas Gerais State, Brazil. The main results reveal that health utility decreases as the level of severity increases. With regard to health issues, mobility stands out as the most important EQ-5D dimension. Independently of severity levels of the other EQ-5D-3L dimensions, the highest decrements in utilities are associated with severe mobility problems.

Este estudo analisa como as diferentes dimensões dos estados de saúde definidas pelo instrumento EQ-5D-3L afetam, em média, as preferências dos indivíduos por estados de saúde. Essa análise é importante para balizar a incorporação de tecnologias em saúde uma vez que viabiliza considerar as preferências da população brasileira na decisão de alocação de recursos em saúde. O EQ-5D-3L define a saúde em cinco dimensões (mobilidade, atividades habituais, auto-cuidado, dor/desconforto e ansiedade/depressão) contendo três níveis de severidade. Os dados são provenientes de uma pesquisa inédita no Brasil que entrevistou 3.362 pessoas com idade entre 18 e 64 anos vivendo em áreas urbanas de Minas Gerais. Os principais resultados mostram que o decremento na utilidade dos indivíduos é crescente com o nível de severidade. No que se refere às dimensões de saúde, a mobilidade se destaca como a mais importante. Independentemente dos níveis de severidade das demais dimensões do EQ-5D, os maiores decrementos nas utilidades estão associados ao problema de mobilidade severa.

Este estudio analiza cómo las diferentes dimensiones de la salud, definidas por el instrumento EQ-5D-3L, afectan, en promedio, las preferencias individuales por los estados de salud. Este análisis es un punto de referencia para la incorporación de tecnologías en salud, ya que hace posible considerar las preferencias de la población brasileña en las decisiones sobre la asignación de recursos de salud. El EQ-5D define la salud en cinco dimensiones (movilidad, actividades habituales, cuidado personal, dolor/malestar y ansiedad/depresión) con tres niveles de severidad. Los datos provienen de una investigación inédita en Brasil, que entrevistó a 3.362 personas entre 18 y 64 años y que viven en zonas urbanas de Minas Gerais. Los principales resultados muestran que la disminución en la utilidad de los individuos aumenta con el nivel de severidad. Con respecto a las dimensiones de salud, la movilidad se destaca como la más importante. Independientemente de los niveles de severidad de las otras dimensiones, los mayores decrementos en la utilidad están asociados con graves problemas de movilidad.

Societal Preferences for EQ-5D Health States from a Brazilian Population Survey.

OBJECTIVE: To elicit preference weights for a subset of EuroQol five-dimensional (EQ-5D) questionnaire health states from a representative sample for the state of Minas Gerais, Brazil, using a time trade-off (TTO) method and to analyze these data so as to estimate social preference weights for the complete set of 243 states. METHODS: Data came from a valuation study with 3362 literate individuals aged between 18 and 64 years living in urban areas. The present study was based on quota sampling by age and sex. Face-to-face interviews were conducted in participants' own homes. A total of 99 EQ-5D questionnaire health states were selected, presorted into 26 blocks of six unique health states. Each participant valued one block together with the full health, worst health, and dead states. Each health state was evaluated by more than 100 individuals. TTO data were modeled at both individual and aggregate levels by using ordinary least squares and random effects methods. RESULTS: Values estimated by different models yielded very similar results with satisfactory goodness-of-fit statistics: the mean absolute error was around 0.03 and fewer than 25% of the states had a mean absolute error greater than 0.05. Dummies coefficients for each level within the EQ-5D questionnaire dimensions of health displayed an internally consistent ordering, with the mobility dimension demonstrating the largest value decrement. The values of mean observed transformed TTO values range from 0.869 to-0.235. CONCLUSIONS: The study demonstrates the feasibility of conducting face-to-face interviews using TTO in a Brazilian population setting. The estimated values for EQ-5D questionnaire health states based on this Minas Gerais survey represent an important first step in establishing national Brazilian social preference weights for the EQ-5D questionnaire.

What matters most? Evidence-based findings of health dimensions affecting the societal preferences for EQ-5D health states.

This study analyzes how different health dimensions defined by the EQ-5D-3L instrument affect average individual preferences for health states. This analysis is an important benchmark for the incorporation of health technologies as it takes into consideration Brazilian population preferences in health resource allocation decisions. The EQ-5D instrument defines health in terms of five dimensions (mobility, daily activities, self-care activities, pain/discomfort, and anxiety/depression) each divided into three levels of severity. Data came from a valuation study with 3,362 literate individuals aged between 18 and 64 living in urban areas of Minas Gerais State, Brazil. The main results reveal that health utility decreases as the level of severity increases. With regard to health issues, mobility stands out as the most important EQ-5D dimension. Independently of severity levels of the other EQ-5D-3L dimensions, the highest decrements in utilities are associated with severe mobility problems.

Social valuation of EQ-5D health states: the Chilean case.

BACKGROUND: Cost-effectiveness analysis has been recommended by many national agencies around the world as a valid methodology to improve resource allocation within the health-care system. If the preferences of the society are taken into account in such a decision-making process, it is generally recommended that these values should be elicited by using a generic health-related quality-of-life instrument, such as the EuroQol five-dimensional (EQ-5D) questionnaire. OBJECTIVES: To estimate a set of social values for EQ-5D questionnaire based on the time trade-off valuation technique for use in Chile. METHODS: A valuation questionnaire was applied to a probabilistic sample of 2000 individuals, aged 20 years or older, living in the Metropolitan region. The fieldwork took place during October to November 2008. Utility weights for 42 health states were calculated directly by the application of time trade-off. Several random effect and ordinary least-squares regression models were fitted to these valuations to predict the full set of 243 health states generated by the EQ-5D system. The best model was chosen by applying criteria of parsimony, goodness of fit, and prediction capacity. RESULTS: The selected regression model was robust and showed better predictive characteristics than others reported in similar studies conducted elsewhere. The chosen regression model showed a R(2) of 0.34, mean absolute error of 0.017, and high predictive capacity. CONCLUSIONS: This study provides an EQ-5D social value set for domestic use in Chile. Our results differ from those reported in other countries, justifying the need to perform local studies that adequately reflect societal health preferences.

Estimation and comparison of EQ-5D health states' utility weights for pneumococcal and human papillomavirus diseases in Argentina, Chile, and the United Kingdom.

OBJECTIVES: To estimate and compare EuroQol instrument (EQ-5D) health states' values for pneumococcal and human papillomavirus (HPV) diseases in Argentina, Chile, and the United Kingdom. METHODS: Twelve vignettes were designed, pilot-tested, and administered to a convenience sample in a cross-sectional design to elicit descriptive EQ-5D state data. Country-specific EQ-5D time-trade-off-based weights were used to map these descriptive health states into local country preference weights. Descriptive analysis is reported and intercountry differences for each condition were compared using repeated measures analysis of variance. RESULTS: Seventy-three subjects completed the survey. Pneumococcal disease-related health states mean values ranged from -0.331 (sepsis, Chile) to 0.727 (auditive sequelae, Argentina). HPV-related conditions ranged from 0.152 (cervical cancer, United Kingdom) to 0.848 (cervical intraepithelial neoplasia 1, Argentina). Chile had consistently the lowest mean values in pneumococcal states and in one HPV state, whereas those of the United Kingdom were the lowest in most HPV states. Argentina had the highest mean values in both diseases. Differences in country-specific values for each health state were statistically (P < 0.001) significant except for six health states in which differences between Chilean and United Kingdom weights were nonsignificant. CONCLUSIONS: Utility values for most conditions differed statistically relevantly among analyzed countries, even though the same health states' descriptive set was valued for each. These results reflect the difference in social weights among different countries, which could be attributed to either different population values or valuation study methodologies. They stress the importance of using local preference weights for context-specific decision making.

Preliminary findings of an investigation into the relationship between national culture and EQ-5D value sets.

BACKGROUND: Despite the growing importance of the EQ-5D descriptive system as a basis for the valuation of QALYs in cost-utility analysis, for most countries, there are no EQ-5D value sets. Researchers and policy makers wishing to use the EQ-5D descriptive system in a country for which there is no value set are advised to use one from a nearby or 'similar' population. Factors other than geographic proximity can affect the relative values of EQ-5D states. OBJECTIVE: This study explores the links between national culture and EQ-5D value sets. METHOD: Rank correlation analysis is used to explore relationships between the relative values of a set of EQ-5D states and dimensions of national culture. The latter are taken from Hofstede's framework which operationalizes national culture in five dimensions. RESULTS: For the data currently available (countries for which EQ-5D value sets and scores on dimensions of culture both exist), moderate and strong correlations were found between the culture dimension of power distance and individualism and the EQ-5D dimensions of pain/discomfort and anxiety/depression. Moderate correlations were also observed between the cultural dimension of masculinity and the EQ-5D dimensions of self care, usual activities and pain/discomfort. Uncertainty avoidance correlates with the EQ-5D dimension of anxiety/depression. DISCUSSION: The correlation patterns observed are generally consistent with a priori expectations based on the nature of the dimensions of culture and the EQ-5D model. This analysis demonstrates the potential of national culture in providing insight into the drivers of the relative values of EQ-5D dimensions for different countries and in informing decisions about which EQ-5D value sets to use in situations where one does not exist.

Hispanic valuation of the EQ-5D health states: a social value set for Latin Americans.

OBJECTIVES: Cost-effectiveness analysis has been recommended by national health agencies worldwide. In the United Kingdom, the National Institute of Health and Clinical Excellence supports the use of generic health-related quality of life instruments such as EuroQol EQ-5D when quality-adjusted life-years are used to measure health benefits. Despite the urgent need for appropriate methodologies to improve the use of scarce resources in Latin American countries, little is known about how health is valued. METHODS: A national population survey was conducted in the United States in 2002, based on a sample of 1603 non-Hispanic nonblacks and 1115 Hispanics. Participants provided time trade-off utilities for a subset of 42 EQ-5D health states. Hispanic respondents were grouped according to their language preferences (Spanish or English). Mean utilities were compared for each health state. A random-effects model was used to determine whether real population differences exist after adjusting for sociodemographic characteristics. A population value set for all 243 EQ-5D health states was developed using only the data from Spanish-speaking Hispanics. RESULTS: Mean valuations differed slightly between non-Hispanic nonblacks and English-speaking Hispanics. Spanish-speaking Hispanics, however, tended to give higher valuations than non-Hispanic nonblacks (P < 0.05) corresponding to an average of 0.034 point. A regression model was developed for Spanish-speaking Hispanics with a mean absolute error of 0.031. Values estimated using this model show marked differences when compared with corresponding values estimated using the UK (N3) and US (D1) models. CONCLUSION: The availability of a Hispanic model for EQ-5D valuations represents a significant new option for decision-makers, providing a set of social preference weights for use in Latin American countries that presently lack their own domestic value set.