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1.
Diabet Med ; 37(10): 1658-1668, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-30706535

RESUMO

AIMS: We examined the effectiveness of a service innovation, Three Dimensions for Diabetes (3DFD), that consisted of a referral to an integrated mental health, social care and diabetes treatment model, compared with usual care in improving biomedical and health economic outcomes. METHODS: Using a non-randomized control design, the 3DFD model was offered in two inner-city boroughs in London, UK, where diabetes health professionals could refer adult residents with diabetes, suboptimal glycaemic control [HbA1c ≥ 75 mmol/mol (≥ 9.0%)] and mental health and/or social problems. In the usual care group, there was no referral pathway and anonymized data on individuals with HbA1c ≥ 75 mmol/mol (≥ 9.0%) were collected from primary care records. Change in HbA1c from baseline to 12 months was the primary outcome, and change in healthcare costs and biomedical variables were secondary outcomes. RESULTS: 3DFD participants had worse glycaemic control and higher healthcare costs than control participants at baseline. 3DFD participants had greater improvement in glycaemic control compared with control participants [-14 mmol/mol (-1.3%) vs. -6 mmol/mol (-0.6%) respectively, P < 0.001], adjusted for confounding. Total follow-up healthcare costs remained higher in the 3DFD group compared with the control group (mean difference £1715, 95% confidence intervals 591 to 2811), adjusted for confounding. The incremental cost-effectiveness ratio was £398 per mmol/mol unit decrease in HbA1c , indicating the 3DFD intervention was more effective and costed more than usual care. CONCLUSIONS: A biomedical, psychological and social criteria-based referral system for identifying and managing high-cost and high-risk individuals with poor glycaemic control can lead to improved health in all three dimensions.


Assuntos
Atenção à Saúde/organização & administração , Diabetes Mellitus Tipo 1/terapia , Diabetes Mellitus Tipo 2/terapia , Transtornos Mentais/terapia , Serviços de Saúde Mental/organização & administração , Serviço Social/organização & administração , Adulto , Idoso , Atenção à Saúde/economia , Diabetes Mellitus Tipo 1/economia , Diabetes Mellitus Tipo 1/metabolismo , Diabetes Mellitus Tipo 1/psicologia , Diabetes Mellitus Tipo 2/economia , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Tipo 2/psicologia , Feminino , Hemoglobinas Glicadas/metabolismo , Custos de Cuidados de Saúde , Serviços de Saúde/economia , Administração de Serviços de Saúde , Humanos , Londres , Masculino , Transtornos Mentais/psicologia , Serviços de Saúde Mental/economia , Pessoa de Meia-Idade , Projetos Piloto , Serviço Social/economia , População Urbana
2.
Eur J Hum Genet ; 26(9): 1248-1256, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29891881

RESUMO

In Australia, the USA and many Asian countries the life insurance industry is self-regulated. Individuals must disclose genetic test results known to them in applications for new or updated policies including cover for critical care, income protection and death. There is limited information regarding how underwriting decisions are made for policies with such disclosures. The Australian Financial Services Council (FSC) provided de-identified data collected on applications with genetic test result disclosure from its life insurance member companies 2010-2013 to enable repetition of an independent examination undertaken of applications 1999-2003: age; gender; genetic condition; testing result; decision-maker; and insurance cover. Data was classified as to test result alone or additional other factors relevant to risk and decision. Where necessary, the FSC facilitated clarification by insurers. 345/548 applications related to adult-onset conditions. The genetic test result solely influenced the decision in 165/345 applications: positive (n = 23), negative (n = 139) and pending (n = 3). Detailed analyses of the decisions in each of these result categories are presented with specific details of 11 test cases. Policies with standard decisions were provided for all negative test results with evidence of reassessment of previous non-standard decisions and 20/23 positive results with recognition of risk reduction strategies. Disclosure of positive results for breast/ovarian cancer, Lynch syndrome and hereditary spastic paraplegia, and three pending results, generated non-standard decisions. The examination demonstrates some progress in addressing concerns in regard to utilisation of genetic test information but the self-regulatory system in Australia only goes some way in meeting internationally recommended best practice.


Assuntos
Testes Genéticos/economia , Seguro de Vida/economia , Austrália , Tomada de Decisões , Testes Genéticos/estatística & dados numéricos , Humanos , Seguro de Vida/estatística & dados numéricos
3.
Intern Med J ; 43(6): 668-77, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23461421

RESUMO

BACKGROUND: Micafungin demonstrated non-inferiority to caspofungin as definitive therapy for candidaemia and invasive candidiasis (IC) in a major randomised clinical trial. AIM: The aim of this study was to investigate if micafungin is a cost-saving option compared with caspofungin for treating candidaemia and IC. METHODS: A decision analytical model was constructed to capture downstream consequences of using either agent as initial therapy for candidaemia and IC. The main outcomes were treatment success and treatment failure (i.e. death, mycological persistence, emergent infection, clinical failure but microbiological success). Outcome probabilities and treatment pathways were derived from the literature. Cost inputs were from the latest Australian resources, and resource use was estimated by expert panel. The analysis was from the Australian hospital perspective. Sensitivity analyses using Monte Carlo simulation were conducted. RESULTS: Micafungin (AU$52 816) was associated with a lower total cost than caspofungin (AU$52 976), with a net cost-saving of $160 per patient. This was primarily due to the lower cost associated with alternative antifungal treatment in the micafungin arm. Hospitalisation was the main cost-driver for both arms. The model outcome was most sensitive to the proportion of treatment success in the micafungin arm. Uncertainty analysis demonstrated that micafungin had a 58% chance of being cost-saving compared with caspofungin. CONCLUSIONS: Micafungin was cost-equivalent to caspofungin in treating candidaemia and IC, with variation in drug acquisition cost the critical factor.


Assuntos
Antifúngicos/economia , Candidemia/tratamento farmacológico , Candidemia/economia , Equinocandinas/economia , Lipopeptídeos/economia , Modelos Econômicos , Antifúngicos/uso terapêutico , Candidíase Invasiva/tratamento farmacológico , Candidíase Invasiva/economia , Caspofungina , Análise Custo-Benefício/economia , Equinocandinas/uso terapêutico , Humanos , Lipopeptídeos/uso terapêutico , Micafungina , Resultado do Tratamento
4.
Australas Med J ; 4(5): 266-72, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-23393519

RESUMO

There is ample evidence in the international literature for pharmacist involvement in the prevention and management of cardiovascular disease (CVD) conditions in primary care. Systematic reviews and meta-analyses have confirmed the significant clinical benefits of pharmacist interventions for a range of CVD conditions and risk factors. Evidence generated in research studies of Australian community pharmacist involvement in CVD prevention and management is summarised in this article.Commonwealth funding through the Community Pharmacy Agreements has facilitated research to establish the feasibility and effectiveness of new models of primary care involving community pharmacists. Australian community pharmacists have been shown to effect positive clinical, humanistic and economic outcomes in patients with CVD conditions. Improvements in blood pressure, lipid levels, medication adherence and CVD risk have been demonstrated using different study designs. Satisfaction for GPs, pharmacists and consumers has also been reported. Perceived 'turf' encroachment, expertise of the pharmacist, space, time and remuneration are challenges to the implementation of disease management services involving community pharmacists.

5.
Community Dent Health ; 27(2): 81-8, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20648884

RESUMO

INTRODUCTION: Dental caries prevalence in UK children remains high and obesity, closely linked to Type 2 diabetes, is rising. Literature suggests that dentists may not give dietary advice due to a lack of clear and consistent guidelines. OBJECTIVE: The aim of the study was to determine whether oral health education leaflets with a food and nutritional focus conform to existing UK national nutritional guidelines from the Department of Health (DoH), the Food Standards Agency (FSA) and the Committee on Medical Aspects of Food and Nutrition Policy (COMA). METHOD: A sample of 30 information leaflets, aimed at parents and children aged 3-16 years, was sourced during the winter of 2005-2006. A qualitative content analysis was carried out to identify key recommendations on type, frequency and quantity of food and drink and general diet-related health advice. RESULTS: Most leaflets (21) promoted milk and water in agreement with nutritional guidelines. Timing of sugary food and drink to mealtimes (25) and decreasing frequency of 'sugary' e.g. non-milk extrinsic (NME) sugar containing foods (22) and drinks (25) reflected guidelines. Inconsistencies were, however, recorded in the leaflets. Five leaflets advised that frequency of consumption rather than the amount of sugary food or drink was important for oral health. This conflicts with nutritional guidelines, aimed at tackling obesity, to decrease both amount and frequency. There was conflicting advice on healthy snacks. Crisps were presented as 'healthy' by two leaflets; another two advised against snacking on dried fruit, conflicting with FSA guidelines that dried fruit contributes to "5 a day". Sixteen leaflets promoted cheese as 'healthy' with no limits on portion size; this could conflict with nutritional guidelines associated with percentage energy contribution of saturated fat to the diet. CONCLUSION: While there was agreement between leaflet content and nutritional guidelines, there were inconsistencies. Dental professionals should acknowledge these when selecting leaflets for lay dissemination.


Assuntos
Ciências da Nutrição Infantil/educação , Ciências da Nutrição Infantil/normas , Educação em Saúde Bucal , Política Nutricional , Folhetos , Adolescente , Criança , Pré-Escolar , Fidelidade a Diretrizes , Guias como Assunto , Humanos , Pais/educação , Reino Unido
6.
Hum Reprod ; 25(6): 1481-9, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20382972

RESUMO

BACKGROUND: Women often enter preimplantation genetic diagnosis (PGD) treatment following traumatic reproductive and genetic histories, the detrimental psychological effects of which are known to be long lasting in some cases. In addition, attempting IVF with PGD requires an in-depth understanding of the aspects of the technology. The level of information that is required and retained by women entering treatment is important for clinicians to understand. To date, neither of these issues has been explored empirically. To address this, we assessed mood and information-seeking behavior in a sample of women entering PGD. METHODS: Fifty women entering PGD treatment completed self-administered questionnaires that assessed anxiety, depression, knowledge of technical aspects of PGD, expectancy of establishing a pregnancy and unmet information needs. RESULTS: Anxiety and depression rates were similar to normal population data. State anxiety was associated with degree of financial worry [beta = 0.36, t = 2.60, P = 0.01, 95% confidence interval (CI): 0.03-0.23], and living in an inner metropolitan area (beta = 0.30, P = 0.03, 95% CI: 0.32-10.81). Unmet information needs were positively associated with women's education (beta = 0.97, P = 0.01, 95% CI: 0.22-1.73). Lastly, expectancy of establishing a pregnancy was above that of what clinicians provide as realistic PGD pregnancy chances and, unexpectedly, was also associated with degree of financial worry (beta = 0.36, P = 0.01, 95% CI: 0.07-0.56). CONCLUSIONS: Women entering PGD are emotionally well adjusted although the financial costs associated with PGD are associated with increases in anxiety. The study is limited by its small sample size and the fact that partners were not assessed.


Assuntos
Adaptação Psicológica , Conhecimentos, Atitudes e Prática em Saúde , Comportamento de Busca de Informação , Diagnóstico Pré-Implantação/psicologia , Afeto , Ansiedade/psicologia , Depressão/psicologia , Feminino , Aconselhamento Genético , Necessidades e Demandas de Serviços de Saúde , Humanos , Infertilidade Feminina/psicologia , Modelos Lineares , Gravidez , Diagnóstico Pré-Natal/psicologia , Apoio Social , Fatores Socioeconômicos , Estresse Psicológico/psicologia , Inquéritos e Questionários
7.
Glob Public Health ; 5(2): 164-80, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20213566

RESUMO

As major global governance entities begin to re-assess the structure and goals of health research in resource-poor settings, social science can make a vital contribution by expanding the traditional field of research ethics to include new concepts such as the social value of global health research. This essay recasts the definition of social value in health research by shifting away from the official spaces where research occurs and towards the meaning of research as it is produced in the everyday spaces inhabited by the local community. We present three cases that reveal the local view of the social value of health research for Ugandans: autonomy and consent; the concept of risk; and what appears to be a classic case of therapeutic misconception between researcher and informant. Ultimately what we see, we argue, is the fundamental collision of the logic of biomedical research with the logic of local social relationships, that is, researchers perform their role as a transaction, while participants anticipate their involvement in research to be transformative. When we expand the analysis of the impact of research from the research/participant dyad to shifting community networks, we conclude that didactic models, such as the therapeutic misconception, are of limited utility for understanding the social value of global health research in resource-poor settings.


Assuntos
Pesquisa Biomédica/ética , Compreensão , Infecções por HIV , Valores Sociais , Saúde Global , Humanos , Consentimento Livre e Esclarecido , Entrevistas como Assunto , Idioma , Medição de Risco , Uganda
8.
J Plast Reconstr Aesthet Surg ; 63(4): 666-72, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19345627

RESUMO

The hub-and-spoke model was introduced in the National Health Service (NHS) with the goal of providing equitable access to health care for all. This study uses bilateral breast reduction (BBR) surgery to assess the success of this model in delivering equity of access for plastic surgery within a publicly funded health-care system. This study also assessed the effect of socioeconomic deprivation on patients seeking BBR. The hospital records were used to identify all patients who underwent BBR at the St. John's Hospital between 1996 and 2005 (N=1081). Patients living outside the catchment area were excluded. Realistic travel distances and times to the hospital and clinics were calculated using patients' postcodes and geographic information systems (GIS) network analysis. Carstairs deprivation scores were obtained for the residential postcode of each patient. The main findings of this study are (1) accessibility to a plastic surgery clinic is an important factor in determining whether an eligible female patient undergoes BBR and (2) most deprived parts of the catchment area accounted for a significantly greater proportion of patients.


Assuntos
Alocação de Recursos para a Atenção à Saúde/métodos , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Mamoplastia/métodos , Mamoplastia/estatística & dados numéricos , Modelos Teóricos , Cirurgia Plástica/estatística & dados numéricos , Topografia Médica/métodos , Área Programática de Saúde , Feminino , Humanos , Reino Unido
9.
Health Technol Assess ; 13(47): iii-iv, ix-xi 1-130, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19833052

RESUMO

OBJECTIVE: To determine whether oral prednisolone or aciclovir, used separately or in combination, early in the course of Bell's palsy, improves the chances of recovery at 3 and 9 months. DESIGN: A 2 x 2 factorial randomised double-blind trial. Patients were randomly assigned to treatment by an automated telephone service using a permuted block randomisation technique with block sizes of four or eight, and no stratification. SETTING: Mainland Scotland, with referrals mainly from general practice to 17 hospital trial sites. PARTICIPANTS: Adults (aged 16 years or older) with unilateral facial nerve weakness of no identifiable cause presenting to primary care, the emergency department or NHS24 within 72 hours of symptom onset. INTERVENTIONS: Patients were randomised to receive active preparations or placebo for 10 days: (1) prednisolone (50 mg per day, 2 x 25-mg capsules) and aciclovir (2000 mg per day, 5 x 400-mg capsules); (2) prednisolone and placebo (lactose, indistinguishable); (3) aciclovir and placebo; and (4) placebo and placebo. OUTCOME MEASURES: The primary outcome was recovery of facial function assessed by the House-Brackmann scale. Secondary outcomes included health status, pain, self-perceived appearance and cost-effectiveness. RESULTS: Final outcomes were available for 496 patients, balanced for gender; mean age 44 years; initial facial paralysis moderate to severe. One half of patients initiated treatment within 24 hours of onset of symptoms, one-third within 24-48 hours and the remainder within 48-72 hours. Of the completed patients, 357 had recovered by 3 months and 80 at 9 months, leaving 59 with a residual deficit. There were significant differences in complete recovery at 3 months between the prednisolone comparison groups (83.0% for prednisolone, 63.6% for no prednisolone, a difference of + 19.4%; 95% confidence interval (CI): + 11.7% to + 27.1%, p < 0.001). The number needed to treat (NNT) in order to achieve one additional complete recovery was 6 (95% CI: 4 to 9). There was no significant difference between the aciclovir comparison groups (71.2% for aciclovir and 75.7% for no aciclovir). Nine-month assessments of patients recovered were 94.4% for prednisolone compared with 81.6% for no prednisolone, a difference of + 12.8% (95% CI: + 7.2% to + 18.4%, p < 0.001); the NNT was 8 (95% CI: 6 to 14). Proportions recovered at 9 months were 85.4% for aciclovir and 90.8% for no aciclovir, a difference of -5.3%. There was no significant prednisolone-aciclovir interaction at 3 months or at 9 months. Outcome differences by individual treatment (the four-arm model) showed significant differences. At 3 months the recovery rate was 86.3% in the prednisolone treatment group, 79.7% in the aciclovir-prednisolone group, 64.7% in the placebo group and 62.5% in the aciclovir group. At 9 months the recovery rates were respectively 96.1%, 92.7%, 85.3% and 78.1%. The increase in recovery rate conferred by the addition of prednisolone (both for prednisolone over placebo and for aciclovir-prednisolone over aciclovir) is highly statistically significant (p < 0.001). There were no significant differences in secondary measures apart from Health Utilities Index Mark 3 (HUI3) at 9 months in those treated with prednisolone. CONCLUSIONS: This study provided robust evidence to support the early use of oral prednisolone in Bell's palsy as an effective treatment which may be considered cost-effective. Treatment with aciclovir, either alone or with steroids, had no effect on outcome.


Assuntos
Aciclovir/uso terapêutico , Paralisia de Bell/tratamento farmacológico , Prednisolona/uso terapêutico , Administração Oral , Adulto , Análise Custo-Benefício , Quimioterapia Combinada , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise de Regressão
10.
Clin Genet ; 74(1): 20-30, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18492091

RESUMO

We report first results from the Australian Genetic Discrimination Project of clinical genetics services clients' perceptions and experiences regarding alleged differential treatment associated with having genetic information. Adults (n = 2667) who had presented from 1998 to 2003 regarding predictive or presymptomatic testing for designated mature-onset conditions were surveyed; 951/1185 respondents met inclusion criteria for current asymptomatic status. Neurological conditions and familial cancers were primary relevant conditions for 87% of asymptomatic respondents. Specific incidents of alleged negative treatment, reported by 10% (n = 93) of respondents, occurred in life insurance (42%), employment (5%), family (22%), social (11%) and health (20%) domains. Respondents where neuro-degenerative conditions were relevant were more likely overall to report incidents and significantly more likely to report incidents in the social domain. Most incidents in the post-test period occurred in the first year after testing. Only 15% of respondents knew where to complain officially if treated negatively because of genetics issues. Recommendations include the need for increased community and clinical education regarding genetic discrimination, for extended clinical genetics sector engagement and for co-ordinated monitoring, research and policy development at national levels in order for the full benefits of genetic testing technology to be realised.


Assuntos
Predisposição Genética para Doença , Testes Genéticos , Preconceito , Adulto , Austrália , Coleta de Dados , Emprego , Relações Familiares , Feminino , Humanos , Seguro Saúde , Masculino , Pessoa de Meia-Idade , Condições Sociais
12.
Diabet Med ; 24(6): 677-83, 2007 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17523968

RESUMO

AIM: To assess the impact of a community pharmacy diabetes service model on patient outcomes in Type 2 diabetes. METHODS: The study utilized a multisite, control vs. intervention, repeated-measures design within four states in Australia. Fifty-six community pharmacies, 28 intervention and 28 control, were randomly selected from a representative sample of urban and rural areas. Intervention pharmacies delivered a diabetes service to patients with Type 2 diabetes, which comprised an ongoing cycle of assessment, management and review, provided at regular intervals over 6 months in the pharmacy. These services included support for self monitoring of blood glucose, education, adherence support, and reminders of checks for diabetes complications. Control pharmacists assessed patients at 0 and 6 months and delivered no intervention. RESULTS: A total of 289 subjects (149 intervention and 140 control) completed the study. For the intervention subjects, the mean blood glucose level decreased over the 6-month study from 9.4 to 8.5 mmol/l (P < 0.01). Furthermore, significantly greater improvements in glycaemic control were seen in the intervention group compared with the control: the mean reduction in HbA(1c) in the intervention group was -0.97% (95% CI: -0.8, -1.14) compared with -0.27% (95% CI: -0.15, -0.39) in the control group. Improvements were also seen in blood pressure control and quality of life in the intervention group. CONCLUSION: A pharmacy diabetes service model resulted in significant improvements in clinical and humanistic outcomes. Thus, community pharmacists can contribute significantly to improving care and health outcomes for patients with Type 2 diabetes. Future research should focus on clarifying the most effective elements of the service model.


Assuntos
Serviços Comunitários de Farmácia/normas , Atenção à Saúde/normas , Diabetes Mellitus Tipo 2/terapia , Austrália , Atenção à Saúde/métodos , Humanos , Pessoa de Meia-Idade , Avaliação de Programas e Projetos de Saúde , Serviços de Saúde Rural/normas , Serviços Urbanos de Saúde/normas
14.
AIDS Care ; 17(3): 350-8, 2005 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-15832883

RESUMO

Self-report health status measures are consistently associated with medical outcomes and are cost-effective. Studies using such measures find that those who live in rural areas or have limited access to support experience poorer health status and poorer outcomes. A survey addressing these issues was administered to 401 HIV-positive persons throughout Alabama. Hierarchical regression models examined the relation of housing stability, stress, substance use and other variables to physical (PCS) and mental (MCS) health status. The sample was 34% female and 66% African-American. Most were receiving antiretroviral medications, and nearly 20% were in unstable housing. Age showed a significant negative relationship to health status. CD4 cell count (p < 0.01) was positively associated with PCS; perceived general stress (p < 0.02) and housing stability (p < 0.04) were negatively associated. The model accounted for 14% of the variance in PCS (p < 0.001). For MCS, general stress (p < 0.001) was negatively associated and substance use tended towards a negative association (p < 0.075). Social support (p < 0.02) was positively associated with MCS. The model accounted for nearly 31% of the MCS variance (p < 0.001). Health status among HIV-positive persons may be improved by assessing and addressing social issues such as social isolation, life stressors and housing.


Assuntos
Infecções por HIV/psicologia , Nível de Saúde , Habitação/normas , Apoio Social , Estresse Psicológico/epidemiologia , Adulto , Alabama/epidemiologia , Feminino , Infecções por HIV/epidemiologia , Indicadores Básicos de Saúde , Habitação/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Qualidade de Vida , Saúde da População Rural , Fatores Socioeconômicos
15.
J Ethnopharmacol ; 89(1): 3-13, 2003 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-14522426

RESUMO

For the last 35 years, the African cherry (Prunus africana (Hook. f.) Kalm.) has been used in the treatment of benign prostatic hyperplasia and other disorders. The bark, from which the treatment is derived, is entirely wild-collected. The major exporters of bark include Cameroon, Madagascar, Equatorial Guinea, and Kenya. Groupe Fournier of France and Indena of Italy produce 86% of the world's bark extract, both for their own products and for the free market. Worldwide exports of dried bark in 2000 have been estimated at 1350-1525 metric tons per year, down from its peak of 3225 tons in 1997. Bark extracts (6370-7225 kg per year) are worth an estimated $4.36 million US dollars per year. In 2000, Plantecam, the largest bark exporter in Africa, closed its extraction factory in Cameroon, due to complex ecological, social, and economic factors. Wild-collection is no longer sustainable (and probably never was) where harvest seriously affects morbidity and mortality rates of harvested populations. Since 1995, it has been included in CITES Appendix II as an endangered species. In this paper, alternatives to wild-collection to meet future market demand are investigated, including conservation practices, enrichment plantings, small- and large-scale production, and protection of genetic resources. The species is at the beginning of a transition from an exclusively wild-collected species to that of a cultivated medicinal tree.


Assuntos
Fitoterapia , Prunus africana , África , Comércio/economia , Conservação dos Recursos Naturais/economia , Humanos , Masculino , Medicinas Tradicionais Africanas , Casca de Planta , Extratos Vegetais/economia , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico , Hiperplasia Prostática/tratamento farmacológico
16.
Phys Med Biol ; 47(10): 1721-31, 2002 May 21.
Artigo em Inglês | MEDLINE | ID: mdl-12069089

RESUMO

Air-filled ionization chambers are used widely for radiation dosimetry. For some applications it is important to know the effect on the chamber response of photon attenuation and scattering in the chamber walls. Traditionally, the wall effect is determined by measuring the chamber response as a function of wall thickness and extrapolating linearly to zero thickness. We have constructed a spherical graphite chamber with variable wall thickness. The change in the chamber response with wall thickness has been measured in a 137Cs gamma-ray beam. Our data show that the change in response is not linear with wall thickness, in agreement with the theoretical prediction of Bielajew (1990 Med. Phys. 17 583-7). A linear versus non-linear extrapolation of the measured data to zero wall thickness leads to a difference of almost 1% in the estimate of the wall correction factor, Kw. The value of Kw obtained using the non-linear extrapolation is in good agreement with the result obtained using Monte Carlo techniques.


Assuntos
Radioisótopos de Césio/uso terapêutico , Radiometria/métodos , Radioterapia/métodos , Algoritmos , Humanos , Método de Monte Carlo , Espalhamento de Radiação
17.
J Ultrasound Med ; 20(9): 973-8, 2001 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-11549158

RESUMO

OBJECTIVE: To evaluate time allocation during initial and repeated ultrasonography and to formulate recommendations to improve unit efficiency. METHODS: Over a 2-year period, 51 comprehensive ultrasonographic examinations between 14 and 38 weeks' gestational age were observed by a single reviewer. Each patient-sonographer interaction was divided into timed segments, including setup, examination time, review, and turnover. Statistical analysis using descriptive statistics, Student ttest, and analysis of variance was performed to determine the effect of the number of ultrasonographic examinations, sonographer experience, estimated gestational age, and patient body mass index on examination time. RESULTS: The average time spent with each patient was 15 minutes 22 seconds: 2 minutes 10 seconds for setup, 9 minutes 38 seconds for examination, 1 minute 50 seconds for review, and 1 minute 44 seconds for turnover. Examination length was not significantly affected by estimated gestational age, body mass index, ultrasonography experience, or the number of ultrasonographic examinations (P > .05). No statistical significance in the duration of scanning was found between initial (15 minutes 3 seconds) and repeated (16 minutes 1 second) examinations (P = .609). Nonexamination activities, such as data entry and room cleanup, consumed 37% of the sonographer's time. CONCLUSIONS: Resource use within the ultrasonography department may be improved by reassigning clerical and custodial duties from sonographers to other personnel. Although differential reimbursement exists, no statistically significant difference in resource use between initial and repeated examinations was found.


Assuntos
Eficiência Organizacional , Gerenciamento do Tempo/métodos , Ultrassonografia Pré-Natal , Índice de Massa Corporal , Eficiência Organizacional/economia , Feminino , Feto/anatomia & histologia , Idade Gestacional , Humanos , Reembolso de Seguro de Saúde , Projetos Piloto , Gravidez , Ultrassonografia Pré-Natal/economia
18.
Int J Geriatr Psychiatry ; 16(3): 266-72, 2001 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-11288160

RESUMO

OBJECTIVE: To examine the relationship between care management arrangements and the Care Programme Approach (CPA) in the context of old age mental health services and, particularly, dementia services. METHOD: The information reported is from a national study of care management arrangements, funded by the Department of Health. A response rate of 77% was obtained from local authority social services departments. RESULTS: In old age mental health services over half of the respondents reported joint screening arrangements for health and social care, almost four-fifths reported both joint criteria for the allocation of key workers and a clear definition of monitoring responsibilities. Of the latter over two-fifths were reported as being the same in care management and the CPA. Forty-six per cent of respondents provided a specialist service for people with dementia. Three-fifths of respondents reported that they did not apply CPA to people with dementia who were in receipt of care management or did so in less than 20% of cases. Where the CPA was applied it was more likely that a priority would be accorded to care management. A quarter of respondents reported the shared use of assessment documentation for people with dementia. DISCUSSION: The findings are set in the context of service developments to date and the implementation of the two systems of community based coordinated care for older people with mental health problems. Inter-authority variations are noted and the potential for greater service integration within the current legislative framework assessed.


Assuntos
Administração de Caso/organização & administração , Serviços de Saúde para Idosos/organização & administração , Serviços de Saúde Mental/organização & administração , Serviço Social em Psiquiatria/organização & administração , Medicina Estatal/organização & administração , Idoso , Demência/terapia , Inglaterra , Implementação de Plano de Saúde , Humanos , Relações Interinstitucionais
20.
Brain Inj ; 14(7): 649-57, 2000 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-10914646

RESUMO

OBJECTIVE: The objective of this study was to compare penetrating and tangential gunshot wounds to the head with regards to demographic, neurobehavioural and clinical outcome measures. METHODS: Twenty-nine patients with penetrating gunshot wounds (P-GSW) and 11 patients with tangential gunshot wound (T-GSW) to the head admitted to an acute neurotrauma service were compared using standardized neurobehavioural and clinical outcome measures. RESULTS: The mean GCS was 10.5 +/- 0.79 for the P-GSW group and 13.4 +/- 0.72 for the T-GSW group. The mean AIS-CNS for the P-GSW group was 5.00 +/- 0 and for the T-GSW group was 3.7 +/- 0.27. Significance was found on Digit Span (p < 0.05) and Block Design (p < 0.009) subtests. Outcomes between the two groups were similar, except for significant differences were found for acute length of stay (LOS) (P-GSW was 47.72 +/- 13.2 and T-GSW group was 13.0 +/- 1.3, p = 0.005) and for acute care charges (P-GSW group was $150,533 +/- 23,834 and T-GSW group was $70,712 +/- 16,587, p = 0.05). CONCLUSIONS: Initially, a penetrating gunshot wound is a more severe and costly injury than a tangential gunshot wound to the head, however T-GSW possess significant deficits and, if the patient survives past the acute phase of recovery, the two groups have similar functional outcomes. Future standard classification, neuropsychological, and clinical outcome measures.


Assuntos
Traumatismos Cranianos Penetrantes/psicologia , Transtornos Psicomotores/etiologia , Ferimentos por Arma de Fogo/psicologia , Adulto , Feminino , Traumatismos Cranianos Penetrantes/complicações , Traumatismos Cranianos Penetrantes/patologia , Custos de Cuidados de Saúde , Humanos , Tempo de Internação , Masculino , Testes Neuropsicológicos , Estudos Retrospectivos , Ferimentos por Arma de Fogo/complicações , Ferimentos por Arma de Fogo/patologia
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