Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 30
Filtrar
1.
Health Aff (Millwood) ; 41(8): 1098-1106, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35914203

RESUMO

Billing and insurance-related costs are a significant source of wasteful health care spending in Organization for Economic Cooperation and Development nations, but these administrative burdens vary across national systems. We executed a microlevel accounting of these costs in different national settings at six provider locations in five nations (Australia, Canada, Germany, the Netherlands, and Singapore) that supplements our prior study measuring the costs in the US. We found that billing and insurance-related costs for inpatient bills range from a low of $6 in Canada to a high of $215 in the US for an inpatient surgical bill (purchasing power parity adjusted). We created a taxonomy of billing and insurance-related activities (eligibility, coding, submission, and rework) that was applied to data from the six sites and allows cross-national comparisons. Higher costs in the US and Australia are attributed to high coding costs. Much of the savings achieved in some nations is attributable to assigning tasks to people in lower-skill job categories, although most of the savings are due to more efficient billing and insurance-related processes. Some nations also reduce these costs by offering financial counseling to patients before treatment. Our microlevel approach can identify specific cost drivers and reveal national billing features that reduce coding costs. It illustrates a valuable pathway for future research in understanding and mitigating administrative costs in health care.


Assuntos
Contabilidade , Seguro Saúde , Atenção à Saúde , Alemanha , Custos de Cuidados de Saúde , Humanos , Organização para a Cooperação e Desenvolvimento Econômico
2.
Rheumatology (Oxford) ; 62(1): 467-472, 2022 12 23.
Artigo em Inglês | MEDLINE | ID: mdl-35640110

RESUMO

OBJECTIVES: Autoantibody seroconversion has been extensively studied in the context of COVID-19 infection but data regarding post-vaccination autoantibody production is lacking. Here we aimed to determine the incidence of common autoantibody formation following mRNA COVID-19 vaccines in patients with inflammatory arthritis (IA) and in healthy controls. METHODS: Autoantibody seroconversion was measured by serum ELISA in a longitudinal cohort of IA participants and healthy controls before and after COVID-19 mRNA-based immunization. RESULTS: Overall, there was a significantly lower incidence of ANA seroconversion in participants who did not contract COVID-19 prior to vaccination compared with those who been previously infected (7.4% vs 24.1%, P = 0.014). Incidence of de novo anti-CCP seroconversion in all participants was low at 4.9%. Autoantibody levels were typically of low titre, transient, and not associated with increase in IA flares. CONCLUSIONS: In both health and inflammatory arthritis, the risk of autoantibody seroconversion is lower following mRNA-based immunization than following natural SARS-CoV-2 infection. Importantly, seroconversion does not correlate with self-reported IA disease flare risk, further supporting the encouragement of mRNA-based COVID-19 immunization in the IA population.


Assuntos
Artrite , COVID-19 , Humanos , Autoanticorpos , Vacinas contra COVID-19 , Incidência , COVID-19/epidemiologia , COVID-19/prevenção & controle , SARS-CoV-2 , Vacinação , RNA Mensageiro
4.
Ann Rheum Dis ; 80(10): 1339-1344, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34035003

RESUMO

OBJECTIVE: To investigate the humoral and cellular immune response to messenger RNA (mRNA) COVID-19 vaccines in patients with immune-mediated inflammatory diseases (IMIDs) on immunomodulatory treatment. METHODS: Established patients at New York University Langone Health with IMID (n=51) receiving the BNT162b2 mRNA vaccination were assessed at baseline and after second immunisation. Healthy subjects served as controls (n=26). IgG antibody responses to the spike protein were analysed for humoral response. Cellular immune response to SARS-CoV-2 was further analysed using high-parameter spectral flow cytometry. A second independent, validation cohort of controls (n=182) and patients with IMID (n=31) from Erlangen, Germany, were also analysed for humoral immune response. RESULTS: Although healthy subjects (n=208) and patients with IMID on biologic treatments (mostly on tumour necrosis factor blockers, n=37) demonstrate robust antibody responses (over 90%), those patients with IMID on background methotrexate (n=45) achieve an adequate response in only 62.2% of cases. Similarly, patients with IMID on methotrexate do not demonstrate an increase in CD8+ T-cell activation after vaccination. CONCLUSIONS: In two independent cohorts of patients with IMID, methotrexate, a widely used immunomodulator for the treatment of several IMIDs, adversely affected humoral and cellular immune response to COVID-19 mRNA vaccines. Although precise cut-offs for immunogenicity that correlate with vaccine efficacy are yet to be established, our findings suggest that different strategies may need to be explored in patients with IMID taking methotrexate to increase the chances of immunisation efficacy against SARS-CoV-2 as has been demonstrated for augmenting immunogenicity to other viral vaccines.

5.
medRxiv ; 2021 May 12.
Artigo em Inglês | MEDLINE | ID: mdl-34013285

RESUMO

OBJECTIVE: To investigate the humoral and cellular immune response to mRNA COVID-19 vaccines in patients with immune-mediated inflammatory diseases (IMIDs) on immunomodulatory treatment. METHODS: Established patients at NYU Langone Health with IMID (n=51) receiving the BNT162b2 mRNA vaccination were assessed at baseline and after second immunization. Healthy subjects served as controls (n=26). IgG antibody responses to the spike protein were analyzed for humoral response. Cellular immune response to SARS-CoV-2 was further analyzed using high-parameter spectral flow cytometry. A second independent, validation cohort of controls (n=182) and patients with IMID (n=31) from Erlangen, Germany were also analyzed for humoral immune response. RESULTS: Although healthy subjects (n=208) and IMID patients on biologic treatments (mostly on TNF blockers, n=37) demonstrate robust antibody responses (over 90%), those patients with IMID on background methotrexate (n=45) achieve an adequate response in only 62.2% of cases. Similarly, IMID patients do not demonstrate an increase in CD8+ T cell activation after vaccination. CONCLUSIONS: In two independent cohorts of IMID patients, methotrexate, a widely used immunomodulator for the treatment of several IMIDs, adversely affected humoral and cellular immune response to COVID-19 mRNA vaccines. Although precise cut offs for immunogenicity that correlate with vaccine efficacy are yet to be established, our findings suggest that different strategies may need to be explored in patients with IMID taking methotrexate to increase the chances of immunization efficacy against SARS-CoV-2 as has been demonstrated for augmenting immunogenicity to other viral vaccines. KEY MESSAGES: What is already known about this subject?: The impact of COVID-19 has been felt across the globe and new hope has arisen with the approval of mRNA vaccines against the SARS-CoV-2. Studies have shown immunogenicity and efficacy rates of over 90% in the immunocompetent adult population. However, there is a lack of knowledge surrounding the response of patients with immune-mediated inflammatory diseases (IMIDs) who may also be on immunomodulatory medications.Patients with IMID have been shown to have attenuated immune responses to seasonal influenza vaccination.What does this study add?: This study looks at the humoral and cellular immune response to two doses of BNT162b2 mRNA COVID-19 Vaccine in participants with IMID (on immunomodulators) compared with healthy controls.Individuals with IMID on methotrexate demonstrate up to a 62% reduced rate of adequate immunogenicity to the BNT162b2 mRNA vaccination. Those on anti-cytokine or non-methotrexate oral medications demonstrate similar levels of immunogenicity as healthy controls (greater than 90%).Similarly, vaccination did not induce an activated CD8+ T cell response in participants on background methotrexate, unlike healthy controls and patients with IMID not receiving methotrexate.How might this impact of clinical practice or future developments?: These results suggest that patients on methotrexate may need alternate vaccination strategies such as additional doses of vaccine, dose modification of methotrexate, or even a temporary discontinuation of this drug. Further studies will be required to explore the effect of these approaches on mRNA vaccine immunogenicity.

6.
Bull Hosp Jt Dis (2013) ; 77(4): 275-278, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31785142

RESUMO

Musculoskeletal involvement occurs in approximately 25% of patients diagnosed with non-Hodgkin lymphoma (NHL). Skeletal involvement is typically secondary, with primary lymphoma of the bone being much rarer. We describe a case in which a 52-year-old man initially presented features suggestive of Lyme arthritis in his left knee. A synovial biopsy performed as part of a synovectomy procedure revealed a proliferative synovium with dense lymphoplasmacytic B cell infiltrate, suggestive of NHL. An inguinal lymph node biopsy was also performed but did not produce results pathologically similar to those of the left knee synovial biopsy.


Assuntos
Articulação do Joelho , Linfoma não Hodgkin , Membrana Sinovial , Artroscopia , Diagnóstico Diferencial , Humanos , Articulação do Joelho/patologia , Articulação do Joelho/cirurgia , Doença de Lyme/diagnóstico , Doença de Lyme/microbiologia , Linfoma não Hodgkin/patologia , Linfoma não Hodgkin/cirurgia , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Sinovectomia , Membrana Sinovial/patologia , Resultado do Tratamento
7.
Soc Sci Med ; 206: 100-109, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29727779

RESUMO

The increasing demand for home care is occurring in tandem with the need for governments to contain health care costs, maximize appropriate resource utilization and respond to patient preferences for where they receive care. We describe the evaluation of the Integrated Client Care Project (ICCP), a government funded project designed to improve value for outcomes for patients referred to community wound care services in Ontario, Canada. We applied a realist evaluation methodology in order to unpack the influences of contextual and mechanistic choices on the intended outcomes of the ICCP implementation. We collected data through ethnographic methods including 36 months of field observation, 46 key informant interviews and contemporaneous document analysis. The findings presented here highlight how theoretical mechanisms were negatively impacted by strong contextual patterns and weak implementation which led to underwhelming outcomes. Autonomy of the participant organizations, lack of power within the implementation team to drive change, opacity of the goals of the program, and disregard for the impact of complex historical relations within the home care sector compounded to undermine the intended outcome.


Assuntos
Atenção à Saúde/economia , Serviços de Assistência Domiciliar/economia , Aquisição Baseada em Valor , Ferimentos e Lesões/terapia , Análise Custo-Benefício , Financiamento Governamental , Serviços de Assistência Domiciliar/organização & administração , Humanos , Ontário , Autonomia Profissional , Avaliação de Programas e Projetos de Saúde , Responsabilidade Social
8.
Dermatol Online J ; 22(12)2016 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-28329555

RESUMO

Dermatomyositis is a systemic, autoimmune diseasewith a variety of clinical features that often includemyositis and characteristic cutaneous findings. Asubset of patients with dermatomyositis developcutaneous ulcers, often in the setting of vasculitis orvasculopathy. We present a case of dermatomyositiswith cutaneous ulcers that show perforatingcollagenosis on histopathologic examination.Acquired reactive perforating collagenosistypically occurs in the setting of diabetes mellitus,chronic renal failure, and other pruritic conditions,and this case represents a rare association withdermatomyositis, which may ultimately be helpful inelucidating the pathophysiology of this perforatingdisorder.


Assuntos
Doenças do Colágeno/diagnóstico , Dermatomiosite/diagnóstico , Dermatoses Faciais/diagnóstico , Dermatoses da Mão/diagnóstico , Dermatoses do Couro Cabeludo/diagnóstico , Úlcera Cutânea/diagnóstico , Doenças do Colágeno/etiologia , Doenças do Colágeno/patologia , Dermatomiosite/complicações , Dermatomiosite/patologia , Extremidades , Dermatoses Faciais/etiologia , Dermatoses Faciais/patologia , Feminino , Dermatoses da Mão/etiologia , Dermatoses da Mão/patologia , Humanos , Pessoa de Meia-Idade , Dermatoses do Couro Cabeludo/etiologia , Dermatoses do Couro Cabeludo/patologia , Úlcera Cutânea/etiologia , Úlcera Cutânea/patologia , Tronco
9.
Ann Emerg Med ; 64(5): 427-38, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24999281

RESUMO

STUDY OBJECTIVE: In recent years, lean principles have been applied to improve wait times in the emergency department (ED). In 2009, an ED process improvement program based on lean methods was introduced in Ontario as part of a broad strategy to reduce ED length of stay and improve patient flow. This study seeks to determine the effect of this program on ED wait times and quality of care. METHODS: We conducted a retrospective cohort study of all ED visits at program and control sites during 3 program waves from April 1, 2007, to June 30, 2011, in Ontario, Canada. Time series analyses of outcomes before and after the program and difference-in-differences analyses comparing changes in program sites with control sites were conducted. RESULTS: In before-after models among program sites alone, 90th percentile ED length of stay did not change in wave 1 (-14 minutes [95% confidence interval {CI} -47 to 20]) but decreased after wave 2 (-87 [95% CI -108 to -66]) and wave 3 (-33 [95% CI -50 to -17]); median ED length of stay decreased after wave 1 (-18 [95% CI -24 to -12]), wave 2 (-23 [95% CI -27 to -19]), and wave 3 (-15 [95% CI -18 to -12]). In all waves, decreases were observed in time to physician assessment, left-without-being-seen rates, and 72-hour ED revisit rates. In the difference-in-difference models, in which changes in program sites were compared with controls, the program was associated with no change in 90th percentile ED length of stay in wave 2 (17 [95% CI -0.2 to 33]) and increases in wave 1 (23 [95% CI 0.9 to 45]) and wave 3 (31 [95% CI 10 to 51]), modest reductions in median ED length of stay in waves 2 and 3 alone, and a decrease in time to physician assessment in wave 3 alone. CONCLUSION: Although the program reduced ED waiting times, it appeared that its benefits were diminished or disappeared when compared with that of control sites, which were exposed to system-wide initiatives such as public reporting and pay for performance. This study suggests that further evaluation of the effectiveness of lean methods in the ED is warranted before widespread implementation.


Assuntos
Serviço Hospitalar de Emergência/organização & administração , Tempo de Internação , Melhoria de Qualidade , Serviço Hospitalar de Emergência/normas , Serviço Hospitalar de Emergência/estatística & dados numéricos , Humanos , Tempo de Internação/estatística & dados numéricos , Ontário , Avaliação de Programas e Projetos de Saúde , Melhoria de Qualidade/organização & administração , Estudos Retrospectivos
10.
Med Care Res Rev ; 71(1): 21-42, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24132582

RESUMO

Improving hospital efficiency is a critical goal for managers and policy makers. We draw on participant observation of the perioperative coaching program in seven Ontario hospitals to develop knowledge of the process by which the content of change initiatives to increase hospital efficiency is defined. The coaching program was a change initiative involving the use of external facilitators with the goal of increasing perioperative efficiency. Focusing on the role of subjective understandings in shaping initiatives to improve efficiency, we show that physicians, nurses, administrators, and external facilitators all have differing frames of the problems that limit efficiency, and propose different changes that could enhance efficiency. Dynamics of strategic and contested framing ultimately shaped hospital change commitments. We build on work identifying factors that enhance the success of change efforts to improve hospital efficiency, highlighting the importance of subjective understandings and the politics of meaning-making in defining what hospitals change.


Assuntos
Eficiência Organizacional/normas , Hospitais/normas , Modelos Organizacionais , Inovação Organizacional , Melhoria de Qualidade/organização & administração , Administração Hospitalar/métodos , Humanos , Recursos Humanos em Hospital/normas
11.
Clin Transl Med ; 2(1): 16, 2013 Dec 18.
Artigo em Inglês | MEDLINE | ID: mdl-24351097

RESUMO

Personalized Medicine has the potential to improve health outcomes and reduce the cost of care; however its adoption has been slow in Canada. Bridgepoint Health is a complex continuous care provider striving to reduce the burden of polypharmacy in chronic patients. The main goal of the study was to explore the feasibility of utilizing personalized medicine in the treatment of chronic complex patients as a preliminary institutional health technology assessment. We analyzed stroke treatment optimization as a clinical indication that could serve as a "proof of concept" for the widespread implementation of pharmacogenetics. The objectives of the study were three-fold:1. Review current practice in medication administration for stroke treatment at Bridgepoint Health2. Critically analyze evidence that pharmacogenetic testing could (or could not) enhance drug selection and treatment efficacy for stroke patients;3. Assess the cost-benefit potential of a pharmacogenetic intervention for stroke.Review current practice in medication administration for stroke treatment at Bridgepoint HealthCritically analyze evidence that pharmacogenetic testing could (or could not) enhance drug selection and treatment efficacy for stroke patients;Assess the cost-benefit potential of a pharmacogenetic intervention for stroke.We conducted a review of stroke treatment practices at Bridgepoint Health, scanned the literature for drug-gene and drug-outcome interactions, and evaluated the potential consequences of pharmacogenetic testing using the ACCE model.There is a substantial body of evidence suggesting that pharmacogenetic stratification of stroke treatment can improve patient outcomes in the long-term, and provide substantial efficiencies for the healthcare system in the short-term. Specifically, pharmacogenetic stratification of antiplatelet and anticoagulant therapies for stroke patients may have a major impact on the risk of disease recurrence, and thus should be explored further for clinical application. Bridgepoint Health, and other healthcare institutions taking this path, should consider launching pilot projects to assess the practical impact of pharmacogenetics to optimize treatment for chronic continuous care.

12.
Health Care Manag Sci ; 16(1): 62-74, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22907662

RESUMO

Originally developed in the context of publicly traded for-profit companies, theory of constraints (TOC) improves system performance through leveraging the constraint(s). While the theory seems to be a natural fit for resource-constrained publicly funded health systems, there is a lack of literature addressing the modifications required to adopt TOC and define the goal and performance measures. This paper develops a system dynamics representation of the classical TOC's system-wide goal and performance measures for publicly traded for-profit companies, which forms the basis for developing a similar model for publicly funded health systems. The model is then expanded to include some of the factors that affect system performance, providing a framework to apply TOC's process of ongoing improvement in publicly funded health systems. Future research is required to more accurately define the factors affecting system performance and populate the model with evidence-based estimates for various parameters in order to use the model to guide TOC's process of ongoing improvement.


Assuntos
Administração da Prática Médica/organização & administração , Avaliação de Processos em Cuidados de Saúde , Setor Público , Gestão da Qualidade Total , Pesquisa sobre Serviços de Saúde , Humanos , Objetivos Organizacionais , Indicadores de Qualidade em Assistência à Saúde , Anos de Vida Ajustados por Qualidade de Vida
13.
Endocr Pract ; 18(6): e138-43, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22784838

RESUMO

OBJECTIVE: To present a case of pulmonary metastases from adrenocortical carcinomas (ACC) that were secreting fully-functional cortisol resulting in clinical Cushing's syndrome and to compare the steroidogenic enzyme expression in the primary tumor and lung. METHODS: We analyzed and summarized the patient's medical history, physical examination results, laboratory data, imaging studies, and histopathologic results. The original tumor and the pulmonary metastases were then immunohistochemically evaluated for steroidogenic enzymes. RESULTS: Initial endocrinological workup revealed hyperandrogenism and adrenocorticotropic hormone (ACTH) independent Cushing's due to a 4 cm left adrenal mass. The patient was initially diagnosed with an adrenal adenoma. Four years later, the patient developed recurrent Cushing's syndrome. Repeat magnetic resonance imaging (MRI) showed no adrenal masses; however, chest computed tomography (CT) showed multiple bilateral lung nodules and biopsy revealed metastases of adrenal origin. Upon immunohistochemical analysis, side chain cleavage, 17α hydroxylase, 3ß hydroxysteroid dehydrogenase, and 21 hydroxylase immunoreactivity were detected in both the original and pulmonary metastatic lesions with patterns of disorganized steroidogenesis. Dehydroepiandrosterone-sulfotransferase (DHEA-ST) immunoreactivity was detected in the original tumor but not in the lung metastases. CONCLUSION: This case demonstrates some interesting features of ACC that pose challenges to its management, including the difficulties in establishing the pathologic diagnosis, the potential for fully functional steroidogenesis even in late metastases, and the plasticity of steroidogenic potential in tumor cells.


Assuntos
3-Hidroxiesteroide Desidrogenases/metabolismo , Neoplasias do Córtex Suprarrenal/patologia , Adenoma Adrenocortical/enzimologia , Síndrome de Cushing/etiologia , Neoplasias Pulmonares/complicações , Neoplasias Pulmonares/secundário , Esteroide 17-alfa-Hidroxilase/metabolismo , Esteroide 21-Hidroxilase/metabolismo , Neoplasias do Córtex Suprarrenal/enzimologia , Neoplasias do Córtex Suprarrenal/cirurgia , Adrenalectomia , Adenoma Adrenocortical/cirurgia , Síndrome de Cushing/sangue , Tratamento Farmacológico , Feminino , Humanos , Hidrocortisona/sangue , Neoplasias Pulmonares/enzimologia , Pessoa de Meia-Idade , Sulfotransferases/metabolismo
15.
Healthc Q ; 14(3): 32-41, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21841375

RESUMO

Toronto's Princess Margaret Hospital (PMH) received a major financial gift to redesign its chemotherapy daycare and transfusion facilities, which were over capacity and in need of improvement, both functionally and aesthetically. PMH's vision was to create a new space and experience that was truly patient centric and world class. Meanwhile, a research team at the University of Toronto's Rotman School of Management had also received a gift from a corporate donor with a patient-focused mandate to examine ways in which healthcare in Canada could be made more patient centric. The Rotman research team was invited to work with the hospital's staff, physicians, patients and families to explore a more patient-centered approach to care.


Assuntos
Institutos de Câncer/organização & administração , Satisfação do Paciente , Canadá , Humanos , Ontário , Estudos de Casos Organizacionais , Assistência Centrada no Paciente
17.
Implement Sci ; 4: 32, 2009 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-19505308

RESUMO

BACKGROUND: Rigorous evaluation of an intervention requires that its allocation be unbiased with respect to confounders; this is especially difficult in complex, system-wide healthcare interventions. We developed a short survey instrument to identify factors for a minimization algorithm for the allocation of a hospital-level intervention to reduce emergency department (ED) waiting times in Ontario, Canada. METHODS: Potential confounders influencing the intervention's success were identified by literature review, and grouped by healthcare setting specific change stages. An international multi-disciplinary (clinical, administrative, decision maker, management) panel evaluated these factors in a two-stage modified-delphi and nominal group process based on four domains: change readiness, evidence base, face validity, and clarity of definition. RESULTS: An original set of 33 factors were identified from the literature. The panel reduced the list to 12 in the first round survey. In the second survey, experts scored each factor according to the four domains; summary scores and consensus discussion resulted in the final selection and measurement of four hospital-level factors to be used in the minimization algorithm: improved patient flow as a hospital's leadership priority; physicians' receptiveness to organizational change; efficiency of bed management; and physician incentives supporting the change goal. CONCLUSION: We developed a simple tool designed to gather data from senior hospital administrators on factors likely to affect the success of a hospital patient flow improvement intervention. A minimization algorithm will ensure balanced allocation of the intervention with respect to these factors in study hospitals.

18.
Healthc Q ; 12(3): 32-41, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19553764

RESUMO

Canadian healthcare organizations are increasingly asked to do more with less, and too often this has resulted in demands on staff to simply work harder and longer. Lean methodologies, originating from Japanese industrial organizations and most notably Toyota, offer an alternative - tried and tested approaches to working smarter. Lean, with its systematic approaches to reducing waste, has found its way to Canadian healthcare organizations with promising results. This article reports on a study of five Canadian healthcare providers that have recently implemented Lean. We offer stories of success but also identify potential obstacles and ways by which they may be surmounted to provide better value for our healthcare investments.


Assuntos
Eficiência Organizacional , Administração Hospitalar/métodos , Liderança , Transferência de Tecnologia , Canadá , Pesquisa sobre Serviços de Saúde
19.
J Clin Endocrinol Metab ; 94(4): 1458-66, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19141582

RESUMO

CONTEXT: Epidemiological data support a shared genetic susceptibility to autoimmune thyroid disease (AITD) and type 1 diabetes (T1D). Both diseases frequently occur within the same family and in the same individual. Patients developing both T1D and AITD are considered to have an autoimmune polyglandular syndrome type 3 variant (APS3v). OBJECTIVE: The goals of this study were to identify the joint susceptibility loci/genes for T1D and AITD. SETTINGS: The study was conducted at an academic medical center. PARTICIPANTS AND MAIN OUTCOME MEASURES: We used whole genome and candidate gene approaches in a data set of 88 families multiplex for T1D and AITD (448 individuals). RESULTS: We identified three loci, on chromosomes 2p, 6p, and Xp, showing linkage when individuals with either T1D or AITD were classified as affected. The 6p locus contained the human leukocyte antigen class II genes, and the Xp locus contained the FOXP3 gene. Three loci, on 2q, 6p (human leukocyte antigen class II), and Xp, showed evidence for linkage when only APS3v individuals (T1D+AITD) were classified as affected. Analysis of positional candidate genes strongly supported CTLA-4 as the gene on 2q associated with APS3v and FOXP3 as the gene on Xp associated with T1D or AITD and APS3v. In addition, the PTPN22 and insulin variable number tandem repeat genes showed significant associations with T1D or AITD in our families. CONCLUSIONS: Our results demonstrate a strong shared genetic susceptibility to T1D and AITD, with most shared genes involved in immune regulation, suggesting that immune dysregulation plays an important role in the joint susceptibility to T1D and AITD.


Assuntos
Cromossomos Humanos Par 2 , Cromossomos Humanos Par 6 , Cromossomos Humanos X , Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 1/genética , Tireoidite Autoimune/complicações , Tireoidite Autoimune/genética , Mapeamento Cromossômico , Estudos de Coortes , Família , Feminino , Fatores de Transcrição Forkhead/genética , Predisposição Genética para Doença , Variação Genética , Antígenos HLA-D/genética , Humanos , Escore Lod , Masculino
20.
Healthc Policy ; 5(1): 35-53, 2009 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20676250

RESUMO

OBJECTIVE: To develop a measure of cancer services integration (CSI) that can inform clinical and administrative decision-makers in their efforts to monitor and improve cancer system performance. METHODS: We employed a systematic approach to measurement development, including review of existing cancer/health services integration measures, key-informant interviews and focus groups with cancer system leaders. The research team constructed a Web-based survey that was field- and pilot-tested, refined and then formally conducted on a sample of cancer care providers and administrators in Ontario, Canada. We then conducted exploratory factor analysis to identify key dimensions of CSI. RESULTS: A total of 1,769 physicians, other clinicians and administrators participated in the survey, responding to a 67-item questionnaire. The exploratory factor analysis identified 12 factors that were linked to three broader dimensions: clinical, functional and vertical system integration. CONCLUSIONS: The CSI Survey provides important insights on a range of typically unmeasured aspects of the coordination and integration of cancer services, representing a new tool to inform performance improvement efforts.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...