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Estudos para avaliação de custo-efetividade do tratamento do transtorno de déficit de atenção/hiperatividade com metilfenidato de liberação imediata no BrasilMaia, Carlos Renato Moreira January 2014 (has links)
Introdução O Transtorno de Déficit de Atenção/hiperatividade (TDAH) tem sido muito estudado, mas informações econômicas referentes ao seu tratamento com o metilfenidato de liberação imediata (MFD-LI) ainda necessitam ser exploradas. Grande parte da população mundial, principalmente aqueles que vivem em países em desenvolvimento, utiliza essa formulação como principal escolha para o tratamento do TDAH. Esses países, por sua condição financeira, necessitam informações de análises econômicas para administrar de forma eficiente os recursos públicos destinados aos setores da saúde. Objetivos Avaliar a eficácia do MFD-LI através de estudos com tempo superior a 12 semanas, e realizar uma análise econômica para o tratamento do TDAH com MFD-LI para crianças e adolescentes brasileiros. Método O estudo foi planejado em cinco etapas: 1) estimativa de custo do não tratamento do TDAH para o Brasil, e estimativa de economia com tratamento com MFD-LI; 2) revisão sistemática da literatura nas principais bases de dados internacionais onde se buscaram estudos abertos com tratamento do TDAH com MFD-LI por tempo igual ou superior a 12 semanas; também foram feitas metanálises e uma metaregressão 3) estudo naturalístico para obterem-se dados de uma amostra brasileira referentes a probabilidades de uso e sucesso com tratamento com MFD-LI por 12 semanas, e estimar os utilities desses indivíduos; 4) painel Delphi com especialistas em TDAH no Brasil; 5) estudo de custo-efetividade para o tratamento do TDAH com MFD-LI no Brasil, utilizando um Modelo de Markov. A perspectiva adotada será a do sistema público de saúde brasileiro como pagador. Resultados Os resultados principais encontrados para cada uma das etapas foram: 1) a estimativa de custos anuais com o TDAH não tratado no Brasil foi de R$ 1.594 bilhões/ano, e da quantia que poderia ser economizada se tratado, R$ 1 bilhão/ano. 2) na revisão sistemática da literatura, de 4.498 resumos, sete foram incluídos para compor a metanálise. O tempo de tratamento variou entre 13 e 104 semanas. O efeito agregado para desatenção e hiperatividade medida pelos pais, respectivamente, foi 0.96 (95%CI 0.60 - 1.32) e 1.12 (95%CI 0.85 - 1.39), e pelos professores 0.98 (95%CI 0.09 - 1.86) e 1.25 (95% CI 0.7 - 1.81). A metaregressão não mostrou associação entre as variáveis idade, qualidade do artigo e tempo de tratamento com heterogeneidade. 3) no estudo naturalístico, de 171 pacientes avaliados, 73 forneceram informações para o baseline, e 56 para a 12a semana de tratamento com MFD-LI. Os utilities para um paciente com TDAH não tratado (baseline) foram 0.69 (crianças) e 0.66 (adolescentes), e estimaram-se ganhos entre 0.09 a 0.10 utilities/mês, se tratados adequadamente. 4) no painel Delphi, de 26 especialistas, 14 responderam o questionário online, e foi estimado que a probabilidade dos pacientes não tratados se manterem sintomáticos na 12a semana seria de 91%, e 9% a probabilidade de melhora espontânea; 5) no estudo de custo-efetividade, para o caso base, estimou-se que o Incremental Cost Effectiveness Ratio (ICER) seja I$9,103/QALY (Quality Adjusted Life Years) para crianças e I$11,883/QALY para adolescentes em um horizonte temporal de 06 anos. Para os cenários mais desfavoráveis, os ICERS mais elevados foram I$95,164/QALY para 50% de sucesso com o tratamento, e I$15,000/QALY para 70% de adesão em um horizonte temporal de 06 anos. Conclusões O MFD-LI é um tratamento eficaz para crianças e adolescentes, por um período superior a 12 semanas. Entretanto, o Brasil pode estar aumentando os custos referentes à saúde por não estar fornecendo um tratamento eficaz e economicamente acessível para o TDAH. O tratamento mostrou ser uma opção custo-efetiva para crianças e adolescentes brasileiros, mesmo em cenários desfavoráveis para o tratamento. / Introduction Attention-Deficit/Hyperactivity Disorder (ADHD) is a well-known psychiatric disorder, but some economical aspects of the treatment with Methylphenidate Immediate-release (MPH -IR) still need to be explored. A large number of people around the world, most living in Low-Middle Income Countries (LMIC), use this formulation as the first choice for ADHD treatment. These countries, due to their financial condition, need information from health economic analyzes to efficiently manage the public resources allocated to the health sector. Objective To study the efficacy of MPH-IR reviewing studies conducted for more than 12 weeks long, and to perform an economic analysis for the treatment of ADHD with MPH-IR for Brazilian children. Method The study was planned in a five stages process: 1) to estimate the cost of untreated ADHD for Brazil, and to estimate the savings if MPH-IR were adequately provided; 2) systematic review of the literature to identify papers published where young patients with ADHD were treated with MPH-IR for more than 12 weeks, and to perform a meta-analysis and a meta-regression; 3) to conduct a naturalistic study with a Brazilian sample to collect the probabilities of use and success with the MPH-IR treatment for 12 weeks, and to estimate the utilities; 4) to perform a Delphi panel with ADHD Brazilian experts; 5) to conduct a cost-effectiveness analysis for the treatment of ADHD with MPH-IR in Brazil, using a Markov model. The perspective is the one of the Brazilian public health system as the payer. Results The main findings for each step were: 1) the estimated annual expenditures with untreated ADHD in Brazil were R$1.594billon/year, and the estimated amount that could be saved was R$1billion/year; 2) in the systematic review, from 4,498 abstracts, 7 studies were selected. The length of treatment ranged from 13 to 104 weeks. The aggregate effects for inattention and hyperactivity, according to parents evaluations were respectively 0.96 (95%CI 0.60 - 1.32) and 1.12 (95%CI 0.85 - 1.39), and for teachers 0.98 (95%CI 0.09 - 1.86) e 1.25 (95% CI 0.7 - 1.81). There was no evidence of association between heterogeneity and the variables, age, paper quality and length of treatment; 3) in the naturalistic study, from 171 patients assessed, 73 provided information in the baseline, and 56 in the 12th week of MPH-IR treatment. Utilities for an untreated ADHD patient (baseline) were 0.69 (children) and 0.66 (adolescents), and it was estimated a gain ranging from 0.09 to 0.10 utilities/month if subjects were properly treated; 4) in the Delphi Panel, 26 experts were addressed and 14 filled in the online questionnaire. It was estimated the probability of untreated patients to remain symptomatic on the 12th week to be 91%, and the probability of spontaneous improvement, 9%; 5) in the cost-effectiveness analysis, for the base case, it was estimated an Incremental Cost Effectiveness Ratio (ICER) of I$9,103/QALY (Quality Adjusted Life Years) for children and I$11,883/QALY for adolescents, in a time horizon of 6 years. The worst case scenarios were also tested, and the highest ICER were I$95,164/QALY when patient reached 50 % of success with the treatment, and I$15,000/QALY if only 70% of use was observed in a time horizon of 6 years. Conclusions MPH-IR is an efficacious treatment for ADHD children and adolescents for periods longer than 12 weeks. However, Brazil may be probably wasting money due to not provide an efficient and affordable treatment for ADHD such as the MPH-IR. The treatment proved to be cost-effective for children and adolescents living in Brazil, even when the worst case scenarios were tested.
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The health related quality of life of refugees with disabilities in ZambiaDavie, Mulenga January 2010 (has links)
<p>This study attests to the fact that disability is an issue in conflict-affected populations, in particular refugees. Refugees with disabilities living in Mayukwayukwa refugee camp also have poor HRQOL similar to other studies. Education was the only variable significantly correlated to the psychological and social domains of the HRQOL. The study highlighted that environmental and personal variables played a role in the determination of health related quality of life among refugees with disabilities.</p>
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The Struggle for Preventative and Early Detection Networking: The ‘Asabiyya-Driven Structuration of Women’s Breast Cancer in the Arab RegionLuqman, Arwa 22 February 2012 (has links)
By 2020, cancer mortality rates are estimated to increase by 180% in Arab countries, where breast cancer is the most common type of cancer. This thesis explores and evaluates the ‘asabiyya-driven structuration (the cohesive force of the group that gives it strength in facing its struggles for progressive reproduction) of cancer agents, government agents, and the World Health Organization agents for breast cancer prevention and early detection in the Arab region. The layers of the philosophical standing from Ibn Khaldûn’s concept of ‘asabiyya and the theoretical foundation of social systems theory, structuration theory, social network analysis, and social capital theory are peeled in order to explore and evaluate the context, constraints, social networks, autopoiesis, and social capital. Utilizing a qualitative research design, this thesis employs content analysis and in-depth interviews, as well as NVivo as a tool for analysis. Data is collected from 122 publications and knowledgeable informants employed by cancer agencies, ministries of health, and World Health Organization offices in Egypt, Jordan, Morocco, and Oman. The findings are divided into the contextual scope of responsibility and resources, the progressive and hierarchal constraining structure, the optimal and weak social networks, the strong and vulnerable shields of autopoiesis, and the presence and absence of social capital momentum, followed by a discussion on the the struggle for structuration against breast cancer. The findings demonstrate that countries with a national cancer control program witness local strengthening ‘asabiyya and ‘asabiyya-driven structuration, while those without a national cancer control program witness weakening local ‘asabiyya. Ultimately, this thesis proposes strategic recommendations to accelerate the regional ‘asabiyya-driven structuration of breast cancer.
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The Struggle for Preventative and Early Detection Networking: The ‘Asabiyya-Driven Structuration of Women’s Breast Cancer in the Arab RegionLuqman, Arwa 22 February 2012 (has links)
By 2020, cancer mortality rates are estimated to increase by 180% in Arab countries, where breast cancer is the most common type of cancer. This thesis explores and evaluates the ‘asabiyya-driven structuration (the cohesive force of the group that gives it strength in facing its struggles for progressive reproduction) of cancer agents, government agents, and the World Health Organization agents for breast cancer prevention and early detection in the Arab region. The layers of the philosophical standing from Ibn Khaldûn’s concept of ‘asabiyya and the theoretical foundation of social systems theory, structuration theory, social network analysis, and social capital theory are peeled in order to explore and evaluate the context, constraints, social networks, autopoiesis, and social capital. Utilizing a qualitative research design, this thesis employs content analysis and in-depth interviews, as well as NVivo as a tool for analysis. Data is collected from 122 publications and knowledgeable informants employed by cancer agencies, ministries of health, and World Health Organization offices in Egypt, Jordan, Morocco, and Oman. The findings are divided into the contextual scope of responsibility and resources, the progressive and hierarchal constraining structure, the optimal and weak social networks, the strong and vulnerable shields of autopoiesis, and the presence and absence of social capital momentum, followed by a discussion on the the struggle for structuration against breast cancer. The findings demonstrate that countries with a national cancer control program witness local strengthening ‘asabiyya and ‘asabiyya-driven structuration, while those without a national cancer control program witness weakening local ‘asabiyya. Ultimately, this thesis proposes strategic recommendations to accelerate the regional ‘asabiyya-driven structuration of breast cancer.
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The History of International Food Safety Standards and the Codex alimentarius (1955-1995)Ramsingh, Brigit Lee Naida 19 November 2013 (has links)
Following the Second World War, the Food and Agriculture Organization (FAO) and the World Health Organization (WHO) teamed up to construct an international Codex Alimentarius (or “food code”) in 1962. Inspired by the work of its European predecessor, the Codex Europaeus, these two UN agencies assembled teams of health professionals, government civil servants, medical and scientific experts to draft food standards. Once ratified, the standards were distributed to governments for voluntary adoption and implementation. By the mid-1990s, the World Trade Organization (WTO) identified the Codex as a key reference point for scientific food standards.
The role of science within this highly political and economic organization poses interesting questions about the process of knowledge production and the scientific expertise underpinning the food standards. Standards were constructed and contested according to the Codex twin goals of: (1) protecting public health, and (2) facilitating trade. One recent criticism of Codex is that these two aims are opposed, or that one is given primacy over the other, which results in protectionism. Bearing these themes in mind, in this dissertation I examine the relationship between the scientific and the ‘social’ elements embodied by the Codex food standards since its inception after the Second World War. I argue that these attempts to reach scientific standards represent an example of coproduction– one in which the natural and social orders are produced alongside each other.
What follows from this central claim is an attempt to characterize the pre-WTO years of the Codex through a case study approach. The narrative begins with a description of the predecessor regional group the Codex europaeus, and then proceeds to key areas affecting human health: 1) food additives, 2) food hygiene, and 3) pesticides residues.
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The health related quality of life of refugees with disabilities in ZambiaDavie, Mulenga January 2010 (has links)
<p>This study attests to the fact that disability is an issue in conflict-affected populations, in particular refugees. Refugees with disabilities living in Mayukwayukwa refugee camp also have poor HRQOL similar to other studies. Education was the only variable significantly correlated to the psychological and social domains of the HRQOL. The study highlighted that environmental and personal variables played a role in the determination of health related quality of life among refugees with disabilities.</p>
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Examining the Use of the 2006 and 2007 World Health Organization Growth Charts by Family Physicians in British ColumbiaRand, Emily Marie Nicholson 28 April 2014 (has links)
Introduction: The epidemic of overweight and obesity both worldwide and in Canada is indicative of the need for proper growth monitoring beginning at birth. This study evaluated Family Physician’s (FP) Level of Use (LoU) of the recommended 2006 and 2007 World Health Organization (WHO) Growth Charts for monitoring their paediatric patients’ growth. It explored factors influencing LoU, utilizing the Diffusion of Innovations (DOI) theory and Ecological Framework for Effective Implementation (EFEI) as guiding models. FPs’ awareness of resources to support paediatric weight management was also assessed. Methods: A survey was distributed to FP in British Columbia (BC), Canada (N = 2853). The survey addressed provider and innovation characteristics, prevention delivery and support system factors, and barriers and facilitators to chart use. Correlations and multiple linear regression were used to determine correlates and predictors of LoU.
Results: Sixty-two surveys were returned (2.2%). WHO Growth Chart LoU was 80.4%. Six variables significantly predicted LoU, including age (β = -.28, t = -3.15, p < .05), practicing in Fraser Health Authority region (β = -.24, t = -2.67, p < .05), assessing head circumference of birth to two year olds (β = .23, t = 2.45, p < .05), perceived growth chart accessibility (β = .39, t = 4.22, p < .05) and compatibility (β = .47, t = 5.27, p < .05), and innovativeness (β = -.37, t = -4.11, p < .05). These variables accounted for 69% of the variance in LoU. The most commonly identified barrier and facilitator to chart use was related to the Electronic Medical Record (EMR) system. FPs’ awareness of resources to support overweight paediatric patients was low.
Conclusion: The majority of FP in BC in this sample had adopted the WHO Growth Charts. The results showed partial support for DOI theory and EFEI derived factors. Despite a small sample size, the findings highlighted the importance of installing the charts in the EMR systems, and can provide a foundation for future public health dissemination efforts and research on medical guideline implementation. / Graduate / 0573 / 0769 / erand@uvic.ca
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Examining the Use of the 2006 and 2007 World Health Organization Growth Charts by Family Physicians in British ColumbiaRand, Emily Marie Nicholson 28 April 2014 (has links)
Introduction: The epidemic of overweight and obesity both worldwide and in Canada is indicative of the need for proper growth monitoring beginning at birth. This study evaluated Family Physician’s (FP) Level of Use (LoU) of the recommended 2006 and 2007 World Health Organization (WHO) Growth Charts for monitoring their paediatric patients’ growth. It explored factors influencing LoU, utilizing the Diffusion of Innovations (DOI) theory and Ecological Framework for Effective Implementation (EFEI) as guiding models. FPs’ awareness of resources to support paediatric weight management was also assessed. Methods: A survey was distributed to FP in British Columbia (BC), Canada (N = 2853). The survey addressed provider and innovation characteristics, prevention delivery and support system factors, and barriers and facilitators to chart use. Correlations and multiple linear regression were used to determine correlates and predictors of LoU.
Results: Sixty-two surveys were returned (2.2%). WHO Growth Chart LoU was 80.4%. Six variables significantly predicted LoU, including age (β = -.28, t = -3.15, p < .05), practicing in Fraser Health Authority region (β = -.24, t = -2.67, p < .05), assessing head circumference of birth to two year olds (β = .23, t = 2.45, p < .05), perceived growth chart accessibility (β = .39, t = 4.22, p < .05) and compatibility (β = .47, t = 5.27, p < .05), and innovativeness (β = -.37, t = -4.11, p < .05). These variables accounted for 69% of the variance in LoU. The most commonly identified barrier and facilitator to chart use was related to the Electronic Medical Record (EMR) system. FPs’ awareness of resources to support overweight paediatric patients was low.
Conclusion: The majority of FP in BC in this sample had adopted the WHO Growth Charts. The results showed partial support for DOI theory and EFEI derived factors. Despite a small sample size, the findings highlighted the importance of installing the charts in the EMR systems, and can provide a foundation for future public health dissemination efforts and research on medical guideline implementation. / Graduate / 0573 / 0769 / erand@uvic.ca
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The Struggle for Preventative and Early Detection Networking: The ‘Asabiyya-Driven Structuration of Women’s Breast Cancer in the Arab RegionLuqman, Arwa 22 February 2012 (has links)
By 2020, cancer mortality rates are estimated to increase by 180% in Arab countries, where breast cancer is the most common type of cancer. This thesis explores and evaluates the ‘asabiyya-driven structuration (the cohesive force of the group that gives it strength in facing its struggles for progressive reproduction) of cancer agents, government agents, and the World Health Organization agents for breast cancer prevention and early detection in the Arab region. The layers of the philosophical standing from Ibn Khaldûn’s concept of ‘asabiyya and the theoretical foundation of social systems theory, structuration theory, social network analysis, and social capital theory are peeled in order to explore and evaluate the context, constraints, social networks, autopoiesis, and social capital. Utilizing a qualitative research design, this thesis employs content analysis and in-depth interviews, as well as NVivo as a tool for analysis. Data is collected from 122 publications and knowledgeable informants employed by cancer agencies, ministries of health, and World Health Organization offices in Egypt, Jordan, Morocco, and Oman. The findings are divided into the contextual scope of responsibility and resources, the progressive and hierarchal constraining structure, the optimal and weak social networks, the strong and vulnerable shields of autopoiesis, and the presence and absence of social capital momentum, followed by a discussion on the the struggle for structuration against breast cancer. The findings demonstrate that countries with a national cancer control program witness local strengthening ‘asabiyya and ‘asabiyya-driven structuration, while those without a national cancer control program witness weakening local ‘asabiyya. Ultimately, this thesis proposes strategic recommendations to accelerate the regional ‘asabiyya-driven structuration of breast cancer.
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Trachoma in Australia : an evaluation of the SAFE strategy and the barriers to its implementation /Wright, Heathcote R. January 2007 (has links)
Thesis (Ph.D.)--University of Melbourne, Dept. of Opthalmology, 2007. / Typescript. SAFE Strategy refers to Surgery for trichiasis, Antibiotics for active infection, Facial cleanliness and Environmental improvements. Includes bibliographical references (leaves 233-253). Also available electronically: http://eprints.unimelb.edu.au/archive/00003844.
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