A Feasible Estimation of a "Corrected" EQ-5D Social Tariff.

OBJECTIVES: To demonstrate the feasibility of estimating a social tariff free of utility curvature and probability weighting biases and to test transferability between riskless and risky contexts. METHODS: Valuations for a selection of EQ-5D-3L health states were collected from a large and representative sample (N = 1676) of the Spanish general population through computer-assisted personal interviewing. Two elicitation methods were used: the traditional time trade-off (TTO) and a novel risky-TTO procedure. Both methods are equivalent for better than death states, which allowed us to test transferability of utilities across riskless and risky contexts. Corrective procedures applied are based on rank-dependent utility theory, identifying parameter estimates at the individual level. All corrections are health-state specific, which is a unique feature of our corrective approach. RESULTS: Two corrected value sets for the EQ-5D-3L system are estimated, highlighting the feasibility of developing national tariffs under nonexpected utility theories, such as rank-dependent utility. Furthermore, transferability was not supported for at least half of the health states valued by our sample. CONCLUSIONS: It is feasible to estimate a social tariff by using interviewing techniques, sample sizes, and sample representativeness equivalent to prior studies designed to generate national value sets for the EQ-5D. Utilities obtained in distinct contexts may not be interchangeable. Our findings caution against routinely taking transferability of utility for granted.

Design of a multiple criteria decision analysis framework for prioritizing high-impact health technologies in a regional health service.

OBJECTIVES: This study aims to develop a framework for establishing priorities in the regional health service of Murcia, Spain, to facilitate the creation of a comprehensive multiple criteria decision analysis (MCDA) framework. This framework will aid in decision-making processes related to the assessment, reimbursement, and utilization of high-impact health technologies. METHOD: Based on the results of a review of existing frameworks for MCDA of health technologies, a set of criteria was proposed to be used in the context of evaluating high-impact health technologies. Key stakeholders within regional healthcare services, including clinical leaders and management personnel, participated in a focus group (n = 11) to discuss the proposed criteria and select the final fifteen. To elicit the weights of the criteria, two surveys were administered, one to a small sample of healthcare professionals (n = 35) and another to a larger representative sample of the general population (n = 494). RESULTS: The responses obtained from health professionals in the weighting procedure exhibited greater consistency compared to those provided by the general public. The criteria more highly weighted were "Need for intervention" and "Intervention outcomes." The weights finally assigned to each item in the multicriteria framework were derived as the equal-weighted sum of the mean weights from the two samples. CONCLUSIONS: A multi-attribute function capable of generating a composite measure (multicriteria) to assess the value of high-impact health interventions has been developed. Furthermore, it is recommended to pilot this procedure in a specific decision context to evaluate the efficacy, feasibility, usefulness, and reliability of the proposed tool.

A Spanish value set for the SF-6D based on the SF-12 v1.

AIM: This paper reports the first estimation of an SF-6D value set based on the SF-12 for Spain. METHODS: A representative sample (n = 1020) of the Spanish general population valued a selection of 56 hypothetical SF-6D health states by means of a probability lottery equivalent (PLE) method. The value set was derived using both random effects and mean models estimated by ordinary least squares (OLS). The best model was chosen on the basis of its predictive ability assessed in terms of mean absolute error (MAE). RESULTS: The model yielding the lowest MAE (0.075) was that based on main effects using OLS. Pain was the most significant dimension in predicting health state severity. Comparison with the previous SF-6D (SF-36) model estimated for Spain revealed no significant differences, with a similar MAE (0.081). Nevertheless, the new SF-6D (SF-12) model predicted higher utilities than those generated by the SF-6D (SF-36) scoring algorithm (minimum value - 0.071 vs - 0.357). CONCLUSION: A value set for the SF-6D (SF-12) based on Spanish general population preferences elicited by means of a PLE technique is successfully estimated. The new estimated SF-6D (SF-12) preference-based measure provides a valuable tool for researchers and policymakers to assess the cost-effectiveness of new health technologies in Spain.

Testing Nonmonotonicity in Health Preferences.

OBJECTIVE: The main aim of this article is to test monotonicity in life duration. Previous findings suggest that, for poor health states, longer durations are preferred to shorter durations up to some threshold or maximum endurable time (MET), and shorter durations are preferred to longer ones after that threshold. METHODS: Monotonicity in duration is tested through 2 ordinal tasks: choices and rankings. A convenience sample (n = 90) was recruited in a series of experimental sessions in which participants had to rank-order health episodes and to choose between them, presented in pairs. Health episodes result from the combination of 7 EQ-5D-3L health states and 5 durations. Monotonicity is tested comparing the percentage rate of participants whose preferences were monotonic with the percentage of participants with nonmonotonic preferences for each health state. In addition, to test the existence of preference reversals, we analyze the fraction of people who switch their preference from rankings to choices. RESULTS: Monotonicity is frequently violated across the 7 EQ-5D health states. Preference patterns for individuals describe violations ranging from almost 49% with choices to about 71% with rankings. Analysis performed by separate states shows that the mean rates of violations with choices and ranking are about 22% and 34%, respectively. We also find new evidence of preference reversals and some evidence-though scarce-of transitivity violations in choices. CONCLUSIONS: Our results show that there is a medium range of health states for which preferences are nonmonotonic. These findings support previous evidence on MET preferences and introduce a new "choice-ranking" preference reversal. It seems that the use of 2 tasks with a similar response scale may make preference reversals less substantial, although it remains important and systematic. HIGHLIGHTS: Two procedures based on ordinal comparisons are used to elicit preferences: direct choices and rankings. Our study reports significant rates of nonmonotonic preferences (or maximum endurable time [MET]-type preferences) for different combinations of durations and EQ-5D health states.Analysis for separate health states shows that the mean rates of nonmonotonicity range from 22% (choices) to 34% (rankings), but within-subject analysis shows that nonmonotonicity is even higher, ranging from 49% (choices) to 71% (rankings). These violations challenge the validity of multiplicative QALY models.We find that the MET phenomenon may affect particularly those EQ-5D health states that are in the middle of the severity scale and not so much the extreme health states (i.e., very mild and very severe states).We find new evidence of preference reversals even using 2 procedures of a similar (ordinal) nature. Percentage rates of preference reversals range from 1.5% to 33%. We also find some (although scarce) evidence on violations of transitivity.

Economic burden of Cardiac Arrest in Spain: analyzing healthcare costs drivers and treatment strategies cost-effectiveness.

BACKGROUND: Cardiac arrest is a major public health issue in Europe. Cardiac arrest seems to be associated with a large socioeconomic burden in terms of resource utilization and health care costs. The aim of this study is the analysis of the economic burden of cardiac arrest in Spain and a cost-effectiveness analysis of the key intervention identified, especially in relation to neurological outcome at discharge. METHODS: The data comes from the information provided by 115 intensive care and cardiology units from Spain, including information on the care of patients with out-of-hospital cardiac arrest who had a return of spontaneous circulation. The information reported by theses 115 units was collected by a nationwide survey conducted between March and September 2020. Along with number of patients (2631), we also collect information about the structure of the units, temperature management, and prognostication assessments. In this study we analyze the potential association of several factors with neurological outcome at discharge, and the cost associated with the different factors. The cost-effectiveness of using servo-control for temperature management is analyzed by means of a decision model, based on the results of the survey and data collected in the literature, for a one-year and a lifetime time horizon. RESULTS: A total of 109 cardiology units provided results on neurological outcome at discharge as evaluated with the cerebral performance category (CPC). The most relevant factor associated with neurological outcome at discharge was 'servo-control use', showing a 12.8% decrease in patients with unfavorable neurological outcomes (i.e., CPC3-4 vs. CPC1-2). The total cost per patient (2020 Euros) was €73,502. Only "servo-control use" was associated with an increased mean total cost per hospital. Patients treated with servo-control for temperature management gained in the short term (1 year) an average of 0.039 QALYs over those who were treated with other methods at an increased cost of €70.8, leading to an incremental cost-effectiveness ratio of 1,808 euros. For a lifetime time horizon, the use of servo-control is both more effective and less costly than the alternative. CONCLUSIONS: Our results suggest the implementation of servo-control techniques in all the units that are involved in managing the cardiac arrest patient from admission until discharge from hospital to minimize the neurological damage to patients and to reduce costs to the health and social security system.

[Approximation to the budgetary cost of universalizing oral health in Spain]. / Una aproximación al coste presupuestario de universalizar la salud bucodental en España.

OBJECTIVE: To make an approximation to an estimate of the impact that an increase in the portfolio of oral health benefits would have on public health spending, which would at least cover most of the therapeutic treatments that households currently pay for privately. METHOD: This estimate is based on the level of expenditure on dental services of the Health Accounts System for the year 2020. The data of increased demand is extracted from a RAND's study on universalization of services. Then we carry out various linear projections of increased spending by introducing several linear co-payment assumptions to explore the impact of different mixed financing mechanisms. RESULTS: The increase in the demand for treatment would be 47.54% with respect to the current level of spending and that, under the starting assumptions, the increase in public spending would reach some 5345 million euros. Various co-pay scenarios could reduce budget impact. CONCLUSIONS: Despite the improvement in the oral health of the Spanish population, there are still problems derived from the existence of a socioeconomic gradient that promotes the concentration of the presence and prevalence of diseases in the lowest socioeconomic levels. Extending the services of the oral-dental portfolio to attend to the entire population would increase public health spending by 0.48 points over GDP and, even so, Spanish public health spending would continue to be below the EU-27 average.

[Impact of the Dependency Act on regional spending on social services]. / Impacto de la Ley de Dependencia sobre el gasto autonómico en servicios sociales.

OBJECTIVE: In this paper we address whether the System for Personal Autonomy and Care of Dependent Persons contributes to increasing the volume of resources of the public social services system (displacement effect) or, on the contrary, whether this development has taken place at the expense of other social services (substitution effect). METHOD: Panel data analysis is used to explain how per capita expenditure on social services evolves in the Spanish Regions under the common regime in the period 2002-2016. RESULTS: The implementation of the Dependency Act is associated with a 14% increase in the level of per capita expenditure on social services. This effect raises 25% when the variable explained is expenditure on current transfers of a social nature. On the other hand, law changes introduced in 2012 and 2013 were associated with a reduction in per capita expenditure on current transfers of around 10%. CONCLUSIONS: This evidence would refute the hypothesis that the System for Personal Autonomy and Care of Dependent Persons had merely a "substitution" effect on autonomous spending on social services.

Spain: Health System Review.

This analysis of the Spanish health system reviews recent developments in organization and governance, health financing, health care provision, health reforms and health system performance. Overall health status continues to improve in Spain, and life expectancy is the highest in the European Union. Inequalities in self-reported health have also declined in the last decade, although long-standing disability and chronic conditions are increasing due to an ageing population. The macroeconomic context in the last decade in the country has been characterized by the global economic recession, which resulted in the implementation of health system-specific measures addressed to maintain the sustainability of the system. New legislation was issued to regulate coverage conditions, the benefits package and the participation of patients in the National Health System funding. Despite the budget constraints linked to the economic downturn, the health system remains almost universal, covering 99.1% of the population. Public expenditure in health prevails, with public sources accounting for over 71.1% of total health financing. General taxes are the main source of public funds, with regions (known as Autonomous Communities) managing most of those public health resources. Private spending, mainly related to out-of-pocket payments, has increased over time, and it is now above the EU average. Health care provision continues to be characterized by the strength of primary care, which is the core element of the health system; however, the increasing financing gap as compared with secondary care may challenge primary care in the long-term. Public health efforts over the last decade have focused on increasing health system coordination and providing guidance on addressing chronic conditions and lifestyle factors such as obesity. The underlying principles and goals of the national health system continue to focus on universality, free access, equity and fairness of financing. The evolution of performance measures over the last decade shows the resilience of the health system in the aftermath of the economic crisis, although some structural reforms may be required to improve chronic care management and the reallocation of resources to high-value interventions.

Converting Parkinson-Specific Scores into Health State Utilities to Assess Cost-Utility Analysis.

OBJECTIVES: The aim of this study was to compare the Parkinson's Disease Questionnaire-8 (PDQ-8) with three multi-attribute utility (MAU) instruments (EQ-5D-3L, EQ-5D-5L, and 15D) and to develop mapping algorithms that could be used to transform PDQ-8 scores into MAU scores. METHODS: A cross-sectional study was conducted. A final sample of 228 evaluable patients was included in the analyses. Sociodemographic and clinical data were also collected. Two EQ-5D questionnaires were scored using Spanish tariffs. Two models and three statistical techniques were used to estimate each model in the direct mapping framework for all three MAU instruments, including the most widely used ordinary least squares (OLS), the robust MM-estimator, and the generalized linear model (GLM). For both EQ-5D-3L and EQ-5D-5L, indirect response mapping based on an ordered logit model was also conducted. Three goodness-of-fit tests were employed to compare the models: the mean absolute error (MAE), the root-mean-square error (RMSE), and the intra-class correlation coefficient (ICC) between the predicted and observed utilities. RESULTS: Health state utility scores ranged from 0.61 (EQ-5D-3L) to 0.74 (15D). The mean PDQ-8 score was 27.51. The correlation between overall PDQ-8 score and each MAU instrument ranged from - 0.729 (EQ-5D-5L) to - 0.752 (EQ-5D-3L). A mapping algorithm based on PDQ-8 items had better performance than using the overall score. For the two EQ-5D questionnaires, in general, the indirect mapping approach had comparable or even better performance than direct mapping based on MAE. CONCLUSIONS: Mapping algorithms developed in this study enable the estimation of utility values from the PDQ-8. The indirect mapping equations reported for two EQ-5D questionnaires will further facilitate the calculation of EQ-5D utility scores using other country-specific tariffs.

Reducing preference reversals: The role of preference imprecision and nontransparent methods.

Preferences elicited with matching and choice usually diverge (as characterised by preference reversals), violating a basic rationality requirement, namely, procedure invariance. We report the results of an experiment that shows that preference reversals between matching (Standard Gamble in our case) and choice are reduced when the matching task is conducted using nontransparent methods. Our results suggest that techniques based on nontransparent methods are less influenced by biases (i.e., compatibility effects) than transparent methods. We also observe that imprecision of preferences influences the degree of preference reversals. The preference reversal phenomenon is less strong in subjects with more precise preferences.

Improving scope sensitivity in contingent valuation: Joint and separate evaluation of health states.

We present data of a contingent valuation survey, testing the effect of evaluation mode on the monetary valuation of preventing road accidents. Half of the interviewees was asked to state their willingness to pay (WTP) to reduce the risk of having only 1 type of injury (separate evaluation, SE), and the other half of the sample was asked to state their WTP for 4 types of injuries evaluated simultaneously (joint evaluation, JE). In the SE group, we observed lack of sensitivity to scope while in the JE group WTP increased with the severity of the injury prevented. However, WTP values in this group were subject to context effects. Our results suggest that the traditional explanation of the disparity between SE and JE, namely, the so-called "evaluability," does not apply here. The paper presents new explanations based on the role of preference imprecision.

[Monetary value of the human costs of road traffic injuries in Spain]. / La valoración monetaria de los costes humanos de la siniestralidad vial en España.

Cost-benefit analyses in the field of road safety compute human costs as a key component of total costs. The present article presents two studies promoted by the Directorate-General for Traffic aimed at obtaining official values for the costs associated with fatal and non-fatal traffic injuries in Spain. We combined the contingent valuation approach and the (modified) standard gamble technique in two surveys administered to large representative samples (n1=2,020, n2=2,000) of the Spanish population. The monetary value of preventing a fatality was estimated to be 1.4 million euros. Values of 219,000 and 6,100 euros were obtained for minor and severe non-fatal injuries, respectively. These figures are comparable to those observed in neighboring countries.

Monetary Valuation of Informal Care Based on Carers' and Noncarers' Preferences.

OBJECTIVES: To elicit willingness-to-accept (WTA) values for informal care based on the preferences of informal carers and noncarers. METHODS: Two surveys were conducted with a sample of carers (n = 202) and a sample of noncarers (n = 200). Individuals in both groups were asked three questions in which they had to state the minimum monetary compensation they would require (WTA) if they had to look after a person described in a hypothetical scenario for one extra hour per day. Furthermore, carers were asked for the compensation they would demand if they had to be in charge of their actual care recipient for one extra hour per day. RESULTS: No significant differences were found between the distributions of carers' and noncarers' WTA values. Overall, respondents' valuations were sensitive to and consistent with their preferences over the tasks to be carried out in the extra hour of informal care. On average, carers required a lower monetary compensation for one extra hour taking care of their loved one (mean/median WTA values €5.2/€4.5) than if they had to devote that time to look after the hypothetical care recipient (mean/median WTA values €6.4/€5.5). More than half of the carers stated the same value under the two caring situations, which suggests that carers' WTA values were influenced by their own experience providing informal care. CONCLUSIONS: Our results show that it is feasible to derive a monetary valuation for informal care from the preferences of noncarers.

[Variability in antibiotic consumption within a regional health service, according to health area and model of healthcare coverage: national health system vs. civil servants' mutual insurance society]. / Variabilidad del consumo de antibióticos en una región sanitaria según áreas de salud y modelo de cobertura: sistema nacional de salud vs. mutualidad de funcionarios.

INTRODUCTION: The aim of this study is to describe antibiotic consumption in the Region of Murcia in 2011, within the Spanish and European context, as well as to analyze the differences within the Region, both between health areas, and between users of the regional health service and those protected by the civil servants' mutual insurance society (MUFACE). METHODS: Retrospective observational study of prescriptions dispensed by the pharmacies in the Region of Murcia during 2011. Consumption rates were expressed as defined daily doses (DDD) per 1,000 inhabitants/day and standardized consumption ratios (SCR). RESULTS: Overall antibiotics consumption rate in the Region of Murcia in 2011 was 30.05 DDD/1000/ day (DID), which is much above the average rate for Spain (20.9 DID) and for the European Union (21.57 DID). Health areas within the Region with the highest and lowest consumption rate are, respectively, Vega Alta (SCR: 124.44; CI95% 124.26 to 124.61) and Cartagena (SCR:84.16; CI95% 84.10 to 84.22). Civil servants covered by the mutual society have higher consumption rates than users of the regional health service (SCR: 105.01; CI95% 104.86 to 105.17). CONCLUSIONS: There is a high level of antibiotic prescription in the Region of Murcia Region in relative terms. A great variability in antibiotics consumption was observed between the different health areas, which might be related to the higher rate of the frequency of visits. The highest amount of variability in antibiotics prescription was found in cephalosporins and macrolides.

[Privatization in healthcare management: an adverse effect of the economic crisis and a symptom of bad governance. SESPAS report 2014]. / La privatización de la gestión sanitaria: efecto secundario de la crisis y síntoma de mal gobierno. Informe SESPAS 2014.

It is often asserted that public management of healthcare facilities is inefficient. On the basis of that unproven claim, it is argued that privatization schemes are needed. In this article we review the available evidence, in Spain and other countries, on the application of private management mechanisms to publicly funded systems similar to the Spanish national health system. The evidence suggests that private management of healthcare services is not necessarily better than public management, nor vice versa. Ownership-whether public or private-of health care centers does not determine their performance which, on the contrary, depends on other factors, such as the workplace culture or the practice of suitable monitoring by the public payer. Promoting competition among centers (irrespective of the specific legal form of the management arrangements), however, could indeed lead to improvements under some circumstances. Therefore, it is advisable to cease the narrow-minded debate on the superiority of one or other model in order to focus on improving healthcare services management per se. Understanding that good governance affects health policies, the management of health care organizations, and clinical practice is, undoubtedly, an essential requirement but may not necessarily lead to policies that stimulate the solvency of the system.

Valuing QALYs at the end of life.

The possibility of weighting QALYs differently for different groups of patients has been a source of debate. Most recently, this debate has been extended to the relative value of QALYs at the end of life (EoL). The objective of this study is to provide evidence of societal preferences in relation to this topic. Three cross-sectional surveys were conducted amongst Spanish general population (n = 813). Survey 1 compared increases in life expectancy for EoL patients with health gains from temporary health problems. Survey 2 compared health gains for temporary health problems with quality of life gains at the EoL (palliative care). Survey 3 compared increases in life expectancy with quality of life gains, both for EoL patients. Preferences were elicited using Person Trade-Off (PTO) and Willingness to pay (WTP) techniques presenting two different durations of health benefit (6 and 18 months). Health benefits, measured in QALYs, were held constant in all comparisons. In survey 1 mean WTP was higher for life extending treatments than for temporary health problems and the majority of respondents prioritised life extension over temporary health problems in response to the PTO questions. In survey 2 mean WTP was higher for palliative care than for temporary health problems and 83% prioritized palliative care (for both durations) in the PTO questions. In survey 3 WTP values were higher for palliative care than for life extending treatments and more than 60% prioritized palliative care in the PTO questions. Our results suggest that QALYs gained from EoL treatments have a higher social value than QALYs gained from treatments for temporary health problems. Further, we found that people attach greater weight to improvements in quality of life than to life extension at the end of life.

Validation and comparison of 15-D and EQ-5D-5L instruments in a Spanish Parkinson's disease population sample.

PURPOSE: To contribute to the ongoing discussion on the choice of a preference-based health-related quality of life (HRQoL) instrument to be used in cost-effectiveness analysis by studying and comparing the validity, sensitivity and relative efficiency of 15-D and EuroQol 5D 5L (EQ-5D-5L) in a Spanish Parkinson's disease (PD) population sample. METHODS: One hundred and thirty-three volunteers were asked to complete an interview using 15-D and EQ-5D-5L. Spearman's rank correlation coefficient (r) was used to test the convergent validity of these instruments with specific PD measures. Sensitivity and efficiency were compared using receiver operating characteristic (ROC) curves and relative efficiency statistic, respectively. RESULTS: A strong correlation (r > 0.65; p < 0.001) was found between both 15-D and EQ-5D-5L utilities with the summary score of the PDQ-8, and a strong correlation (r > 0.50; p < 0.001) was found between 15-D and EQ-5D-5L utilities with the EQ-VAS. The areas under the ROC of both instruments all exceeded 0.5 (p < 0.001). The 15-D instrument was 4.1-29.8 % less efficient at detecting differences between patients with optimal HRQoL, while this instrument was 11 % more efficient at detecting differences between patients at mild and moderate to strong severity of the PD symptoms. CONCLUSIONS: 15-D and EQ-5D-5L are showed to be valid and sensitivity generic HRQoL measures in Spanish PD patients with both instruments showing similar HRQoL dimension coverage and ceiling/floor effects. The 15-D has better efficiency and greater sensitivity to detect clinical changes in PD severity of the symptoms meanwhile the EQ-5D-5L is better to detect clinical HRQoL changes. Additionally, the EQ-5D-5L questionnaire requires less time than 15-D to be administered, and it might be more appropriate for studies conducted in Spain, since a country-specific "value set" is available for this instrument and not for the 15-D.

Lowering the 'floor' of the SF-6D scoring algorithm using a lottery equivalent method.

This paper presents a new scoring algorithm for the SF-6D, one of the most popular preference-based health status measures. Previous SF-6D value sets have a minimum (a floor), which is substantially higher than the lowest value generated by the EQ-5D model. Our algorithm expands the range of SF-6D utility scores in such a way that the floor is significantly lowered. We obtain the wider range because of the use of a lottery equivalent method through which preferences from a representative sample of Spanish general population are elicited.

Inverse probability weighted estimation of social tariffs: an illustration using the SF-6D value sets.

This paper presents a novel approach to model health state valuations using inverse probability weighting techniques. Our approach makes no assumption on the distribution of health state values, accommodates covariates in a flexible way, eschews parametric assumptions on the relationship between the outcome and the covariates, allows for an undetermined amount of heterogeneity in the estimates and it formally tests and corrects for sample selection biases. The proposed model is semi-parametrically estimated and it is illustrated with health state valuation data collected for Spain using the SF-6D descriptive system. Estimation results indicate that the standard regression model underestimates the utility loss that the Spanish general population assigns to departures from full health, particularly so for severe departures.