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Auditory processing in individuals with mild aphasia: a study of resource allocation.

This study examined the effects of lesion location (frontal vs. posterior) and nature of distraction (nonverbal vs. verbal secondary, competing task) on mildly aphasic individuals' performances of listening tasks that required semantic judgments and lexical decisions under isolation, focused attention, and divided attention conditions. Despite comparable accuracy among all groups during isolation conditions, the aphasic groups responded less accurately and more slowly than the normal control group during focused and divided attention conditions. Generally, the two aphasic groups performed similarly, quantitatively and qualitatively. Demographic characteristics such as time post stroke did not correlate with performance decrements. Independent of group, all individuals showed greater disruption of auditory processing skills when the secondary task was verbal rather than nonverbal. Within a limited-capacity model of attention, the results suggest that aphasic individuals display impairments of attention and resource allocation and that these impairments negatively interact with their auditory processing abilities.

Adult↗

Individual and neighbourhood determinants of health care utilization. Implications for health policy and resource allocation.

OBJECTIVES: To investigate the importance of both individual and neighbourhood socioeconomic characteristics for health care utilization. METHODS: Various linkage procedures generated a longitudinal dataset with information on 2,116 Nova Scotians, their residential neighbourhoods, 8 years of health care utilization and vital status. Unilevel and multilevel regression analyses were employed to examine the effects of both individual and neighbourhood characteristics on health care use. RESULTS: Individual income and education determined physician and hospital use. Also, neighbourhood characteristics, specifically average income and percentage of single mother families, were found to determine health care use. When considering individual and neighbourhood characteristics simultaneously, individual income and education determined physician and hospital use independently, while neighbourhood income determined physician use independently. CONCLUSIONS: Both individual and neighbourhood socioeconomic characteristics determine health care use. Acknowledging this allows better targeting of health policy and planning, and enables more accurate needs-based resource allocation.

Adolescent↗

[Health care resource allocation in Chile. Ethical considerations in decision making].

BACKGROUND: The inclusion of ethical aspects in the world health care reform is currently being discussed. AIM: To analyze the ethical component of health care decision making in Chile. MATERIAL AND METHODS: A qualitative analysis of interviews with 4 health service directors, 4 public hospital directors and 1 sub director. Inquiries to 16 public hospital ethics committees, about importance of ethical components in decision making, role of ethics committees in financial issues and the feasibility of incorporation explicit ethical considerations in decision making. RESULTS: There is an absence of explicit ethical criteria in decision making. There is little participation of directors in these issues and lack of information. Although ethical aspects are considered relevant, they are not taken into account. Ethics committees are mostly dedicated to evaluate research protocols. The community is not mentioned as a relevant actor in decision making about resource allocation. CONCLUSIONS: Health service directors and all health care personnel should be trained in bioethics. These aspects should be incorporated to their daily work.

Adult↗

Dealing with uncertainty: will science solve the problems of resource allocation in the U.K. NHS?

In spite of the huge efforts which internationally address the development and assessment of health technologies, the majority of health care interventions have not been formally evaluated for their effectiveness and their likely impact upon health status is largely unknown. This has led to a situation where it is unclear on what basis a health care system might be judged, or for that matter on what basis decisions on the specification of individual services might be made. It has frequently been argued that the only way to build an adequate understanding of the effectiveness of different interventions is through systematically locating and synthesising the available evidence from research, and such systematic overviews are increasingly available in many areas. However, such overviews produce few clear conclusions, and even when the results of systematic overviews show unequivocal benefits for patients, implementing the findings of such reviews remains problematic. Research evidence provides useful information on marginal benefits for patients, though areas where the absolute benefit is high appear to be very rare. The most common finding appears to be uncertainty. Interpreting research evidence is complex, and even very clear findings may prove hard to operationalise. Good quality research will help, but will not solve, the problems of resource allocation in the NHS or in other health systems.

Adrenal Cortex Hormones↗

Multimodal imaging of residual function and compensatory resource allocation in cortical atrophy: a case study of parietal lobe function in a patient with Huntington's disease.

In a case of Huntington's disease (HD) with dementia and pronounced parieto-frontal atrophy, the functional state of the affected regions was investigated using functional magnetic resonance imaging (fMRI) and fluorodeoxyglucose-positron emission tomography (FDG-PET). It was observed that although parietal areas showed extensive atrophy and reduced resting glucose metabolism, the patient performed with similar accuracy but with longer response time in a visuospatial task compared with healthy control subjects. At the same time, the blood oxygen level-dependent (BOLD) fMRI signal in these areas, which are involved in visuospatial processing, showed a similar task-dependent modulation as in control subjects. The signal amplitude (signal percent change) of the task-dependent activation was even higher for the HD patient than in the control group. This residual functionality of parietal areas involved in visuospatial processing could account for the patient's performance in the task concerned, which contrasted with his poor performance in other cognitive tasks. The increased percent-signal change suggests that a higher neuronal effort was necessary to reach a similar degree of accuracy as in control subjects, fitting well with the longer reaction time. We propose that fMRI should be considered as a tool for the assessment of functionality of morphologically abnormal cortex and for the investigation of compensatory resource allocation in neurodegenerative disorders.

Adult↗

Multimodal imaging of residual function and compensatory resource allocation in cortical atrophy: a case study of parietal lobe function in a patient with Huntington's disease.

In a case of Huntington's disease (HD) with dementia and pronounced parieto-frontal atrophy, the functional state of the affected regions was investigated using functional magnetic resonance imaging (fMRI) and fluorodeoxyglucose-positron emission tomography (FDG-PET). It was observed that although parietal areas showed extensive atrophy and reduced resting glucose metabolism, the patient performed with similar accuracy but with longer response time in a visuospatial task compared with healthy control subjects. At the same time, the blood oxygen level-dependent (BOLD) fMRI signal in these areas, which are involved in visuospatial processing, showed a similar task-dependent modulation as in control subjects. The signal amplitude (signal percent change) of the task-dependent activation was even higher for the HD patient than in the control group. This residual functionality of parietal areas involved in visuospatial processing could account for the patient's performance in the task concerned, which contrasted with his poor performance in other cognitive tasks. The increased percent-signal change suggests that a higher neuronal effort was necessary to reach a similar degree of accuracy as in control subjects, fitting well with the longer reaction time. We propose that fMRI should be considered as a tool for the assessment of functionality of morphologically abnormal cortex and for the investigation of compensatory resource allocation in neurodegenerative disorders.

Atrophy↗

Can economic evaluation guidelines improve efficiency in resource allocation? The cases of Portugal, The Netherlands, Finland, and the United Kingdom.

The use of economic evaluation in decision making appears to have increased over the past few years and economic evaluation is looked upon as another measure to help contain costs and improve efficiency in an evidence-based decision-making environment. Following the examples of Australia and the Canadian Province of Ontario, four European Union (EU) countries (Finland, the Netherlands, Portugal, and the United Kingdom) have recently introduced economic evaluation guidelines. In addition to the Australian and Canadian guidelines, which constitute a hurdle to reimbursement, the paradigm that seems to be evolving in the four EU countries follows a similar route. Finland and the Netherlands seem to be moving toward the notion of a fourth hurdle to reimbursement, whereas the National Institute for Clinical Excellence in England and Wales was in principle meant to influence practice, although in reality this essentially acts as a hurdle to reimbursement, requiring a different data set to that used by regulatory authorities. Whereas the Portuguese guidelines were developed to assist in preparing economic submissions to support reimbursement decisions, they are unclear about when such evidence will be required and also discuss the dissemination of economic evidence to broader audiences. The introduction of these guidelines poses a number of challenges to policy makers, the implications of which are analyzed in the paper: a) to ensure that economic evaluations are carried out scientifically without industrial or political bias; b) to define an acceptable methodology that would increase their credibility; and c) to address certain practical issues ranging from deciding how to use economic evaluations in policy making to setting up new institutions or improving the coordination and dissemination of evidence. The variation in the use of economic evaluation guidelines in the four EU countries highlights the differences in national pharmaceutical policies and is in line with policy makers' continuous attempts to contain costs. While the paper critically discusses the guidelines, it also points out that a series of methodologic issues need to be addressed if economic criteria are to be introduced in policy making with the aim to improve resource allocation. The paper concludes that economic evaluation as a discipline is beginning to impact on policy, whereas the consistent use of economic evaluation results is, in principle, being adopted by policy makers but needs to go a step further to reach practitioners.

Drug Therapy↗

Larval food limitation in butterflies: effects on adult resource allocation and fitness.

Allocation of larval food resources affects adult morphology and fitness in holometabolous insects. Here we explore the effects on adult morphology and female fitness of larval semi-starvation in the butterfly Speyeria mormonia. Using a split-brood design, food intake was reduced by approximately half during the last half of the last larval instar. Body mass and forewing length of resulting adults were smaller than those of control animals. Feeding treatment significantly altered the allometric relationship between mass and wing length for females but not males, such that body mass increased more steeply with wing length in stressed insects as compared to control insects. This may result in changes in female flight performance and cost. With regard to adult life history traits, male feeding treatment or mating number had no effect on female fecundity or survival, in agreement with expectations for this species. Potential fecundity decreased with decreasing body mass and relative fat content, but there was no independent effect of larval feeding treatment. Realized fecundity decreased with decreasing adult survival, and was not affected by body mass or larval feeding treatment. Adult survival was lower in insects subjected to larval semi-starvation, with no effect of body mass. In contrast, previous laboratory studies on adult nectar restriction showed that adult survival was not affected by such stress, whereas fecundity was reduced in direct 11 proportion to the reduction of adult food. We thus see a direct impact of larval dietary restriction on survival, whereas fecundity is affected by adult dietary restriction, a pattern reminiscent of a survival/reproduction trade-off, but across a developmental boundary. The data, in combination with previous work, thus provide a picture of the intra-specific response of a suite of traits to ecological stress.

Animal Nutritional Physiological Phenomena↗

Resource allocation. Some problems in applying the national formula to area and district revenue allocations.

The inadequacy of the current national formula in dealing with flows of patients across administrative boundaries is illustrated. In particular, the problems of dealing with varying admission rates for inpatients and in allocating revenues for outpatient services are discussed. We draw attention to an oversight in the recommendations concerning psychiatric services and criticise the general approach to the allocation of revenue under this heading. It is concluded that the national formula should not be applied for revenue allocation at district level in an unmodified form.

Catchment Area, Health↗

A population needs-based approach to health-care resource allocation and planning in Ontario: a link between policy goals and practice?

This paper presents a way of planning and allocating health-care resources in Ontario, based on population health needs. It is argued that this approach is consistent not only with the principles of the Canada Health Act but also with the vision of health for Ontario. The paper reviews various direct and indirect indicators of need for health care, concluding that our present state of knowledge allows use of the SMR (indicating premature mortality) and for the application of a population needs-based approach which is itself uncontaminated by existing service availabilities and distributions and hence avoids perpetuating any inequalities.

Data Collection↗

The determinants of hospital utilisation: implications for resource allocation in England.

Since 1976 various attempts have been made to ensure that NHS resources available for hospital and related services in England are allocated in proportion to the health care needs of different areas. The current method is based on analyses of the links between observed patterns of in-patient utilization and the characteristics of the populations of small areas. There are a number of practical difficulties with this approach, however, and so the search continues for new analytical techniques. The purpose of this paper is to explore how household survey data about 12,729 English adults could be used to inform resource allocation decisions. Health care need indicators can be developed based on Census information and odds ratios derived from logistic regression analyses of the relationships between hospital utilization, health status, socio-demographic characteristics and area indicators of supply. The results suggest that health status is the most important determinant of hospital utilization, although demographic and socio-economic factors also have some influence. In addition to the personal characteristics of individual respondents, area correlates of health care supply are also positively associated with reported utilization. The final part of the paper illustrates how weighted population estimates might be calculated on the basis of empirically-derived indicators of health care need.

Adult↗

Is subjective well-being a useful parameter for allocating resources among public interventions?

Scarce public resources require trade-offs between competing programs in different sectors, and the careful allocation of fixed resources within a single sector. This paper argues that a general quality of life instrument encompassing health-related and non-health-related components is suitable for determining the best trade-offs between sectors. Further, this paper suggests that subjective well-being shows the properties crucial to a general quality of life measure and has additional advantages that makes it particularly useful for the allocation of public and health care resources. The paper argues that Western societies are in an unusually prosperous situation today which allows to concentrate efforts not only on reducing harm but also on improving positive states of health. Further, subjective well-being can be evaluated from the patient's perspective and incorporates a valuation of life expectancy. Criteria required for an appropriate questionnaire that measures subjective well-being are presented.

Cost-Benefit Analysis↗

Minnesota public opinion on health care resource allocation.

Creating workable policies for allocating or rationing finite health care resources to meet the needs of individuals as well as the broader society vexes policymakers, providers, and consumers. This paper presents results of a March 1994 Lou Harris survey of 1,006 Minnesotans about health care allocation. Minnesotans believe that allocative or rationing decisions are inevitable and can be discussed. Individualized bedside allocative decisions are preferable to categorical or universal exclusions of some health care benefits. People want comprehensive health care and are willing to let sound clinical judgment, perhaps informed by practice guidelines, selectively withhold some services. The integrity of plan-based allocation or rationing may be best secured and safeguarded by standards that ensure that the decisions are based on patients' best interests, involve trusted clinical decision makers, and include lay participation in the decision making.

Adolescent↗

Comparison of two scores for allocating resources to doctors in deprived areas.

Current proposals in the general practitioner contract include additional payments to doctors working among deprived populations. The underprivileged area score will be used to identify local authority wards with the greatest levels of deprivation, thus acting as the basis for distributing considerable resources. Two methods of identifying deprived populations--the underprivileged area score and the material deprivation score--were compared to determine whether they result in similar allocation of resources to regions. Financial allocations to regions based on figures derived from the contract differed considerably if the material deprivation score was used instead of the underprivileged area score: Northern and Mersey regions gained over 50% of their allocation whereas East Anglia, Oxford, and South West Thames regions lost more than 30% of theirs. Such differences have considerable implications for doctors working among deprived populations as up to 60m pounds each year might be distributed by these payments.

England↗

Waiting for care. Queuing and resource allocation.

Queues arise in medical care and serve as allocators in the absence of an effective market and when resources become perceptibly constrained. This is essentially the case in all countries where money is not the means for gaining access to medical services. A study estimated that the total wait in England was 96 days for nonemergency care leading to hospitalization, including primary and specialty ambulatory care, for that one quarter of patients who had been placed on a waiting list. Of the remaining hospitalized population one half were admitted immediately and another one fourth were either booked or transferred from other hospitals. The widely accepted notion that a large majority of hospitalized patients wait a long time for care in Britain is mistaken. The emphasis on primary ambulatory care means that essentially no one has to wait for general practitioner care. The wait for elective ambulatory specialty care averaged approximately 8 weeks for all patients. Although mortality is rarely an issue for those who wait, an argument can be made that convenience and quality of life are importantly affected.

Ambulatory Care↗