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1.
Milbank Q ; 101(S1): 795-840, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-37096603

RESUMO

Policy Points Systems based on primary care have better population health, health equity, and health care quality, and lower health care expenditure. Primary care can be a boundary-spanning force to integrate and personalize the many factors from which population health emerges. Equitably advancing population health requires understanding and supporting the complexly interacting mechanisms by which primary care influences health, equity, and health costs.


Assuntos
Equidade em Saúde , Saúde da População , Humanos , Gastos em Saúde , Custos de Cuidados de Saúde , Atenção Primária à Saúde
2.
J Mix Methods Res ; 16(2): 183-206, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35603123

RESUMO

Multi-level perspectives across communities, medical systems and policy environments are needed, but few methods are available for health services researchers with limited resources. We developed a mixed method health policy approach, the focused Rapid Assessment Process (fRAP), that is designed to uncover multi-level modifiable barriers and facilitators contributing to public health issues. We illustrate with a study applying fRAP to the issue of cancer survivorship care. Through this multi-level investigation we identified two major modifiable areas impacting high-quality cancer survivorship care: 1) the importance of cancer survivorship guidelines/data, 2) the need for improved oncology-primary care relationships. This article contributes to the mixed methods literature by coupling geospatial mapping to qualitative rapid assessment to efficiently identify policy change targets.

3.
Fam Med ; 53(8): 697-700, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34587265

RESUMO

The sometimes-paradoxical emergent behavior of complex systems may be explained by the interaction of simple rules. The paradox of primary care-that systems based on primary care have healthier populations, fewer health inequities, lower health care expenditures, and better system-level evidence-based disease care, despite less evidence-based care for individual diseases-may be explained by the iterative interaction among three simple rules that describe the generalist approach: (1) Recognize a broad range of problems/opportunities; (2) Prioritize attention and action with the intent of promoting health, healing, and connection; and (3) Personalize care based on the particulars of the individual or family in their local context. These are complemented by three simple rules for specialist care that represent current approaches to quality and health care system improvement: (1) Identify and classify disease for management; (2) Interpret through specialized knowledge; (3) Generate and carry out a management plan. Health care systems that support the enactment of the simple rules of the generalist approach are likely to have more effective primary and specialty care, and greater population health, equity, quality, and sustainable cost.


Assuntos
Medicina , Atenção à Saúde , Humanos , Atenção Primária à Saúde
4.
Ecol Evol ; 10(9): 3977-3990, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32489625

RESUMO

Understanding the geographic extent and connectivity of wildlife populations can provide important insights into the management of disease outbreaks but defining patterns of population structure is difficult for widely distributed species. Landscape genetic analyses are powerful methods for identifying cryptic structure and movement patterns that may be associated with spatial epizootic patterns in such cases.We characterized patterns of population substructure and connectivity using microsatellite genotypes from 2,222 white-tailed deer (Odocoileus virginianus) in the Mid-Atlantic region of the United States, a region where chronic wasting disease was first detected in 2009. The goal of this study was to evaluate the juxtaposition between population structure, landscape features that influence gene flow, and current disease management units.Clustering analyses identified four to five subpopulations in this region, the edges of which corresponded to ecophysiographic provinces. Subpopulations were further partitioned into 11 clusters with subtle (F ST ≤ 0.041), but significant genetic differentiation. Genetic differentiation was lower and migration rates were higher among neighboring genetic clusters, indicating an underlying genetic cline. Genetic discontinuities were associated with topographic barriers, however.Resistance surface modeling indicated that gene flow was diffuse in homogenous landscapes, but the direction and extent of gene flow were influenced by forest cover, traffic volume, and elevational relief in subregions heterogeneous for these landscape features. Chronic wasting disease primarily occurred among genetic clusters within a single subpopulation and along corridors of high landscape connectivity.These results may suggest a possible correlation between population substructure, landscape connectivity, and the occurrence of diseases for widespread species. Considering these factors may be useful in delineating effective management units, although only the largest features produced appreciable differences in subpopulation structure. Disease mitigation strategies implemented at the scale of ecophysiographic provinces are likely to be more effective than those implemented at finer scales.

5.
Milbank Q ; 98(2): 399-445, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32401386

RESUMO

Policy Points An onslaught of policies from the federal government, states, the insurance industry, and professional organizations continually requires primary care practices to make substantial changes; however, ineffective leadership at the practice level can impede the dissemination and scale-up of these policies. The inability of primary care practice leadership to respond to ongoing policy demands has resulted in moral distress and clinician burnout. Investments are needed to develop interventions and educational opportunities that target a broad array of leadership attributes. CONTEXT: Over the past several decades, health care in the United States has undergone substantial and rapid change. At the heart of this change is an assumption that a more robust primary care infrastructure helps achieve the quadruple aim of improved care, better patient experience, reduced cost, and improved work life of health care providers. Practice-level leadership is essential to succeed in this rapidly changing environment. Complex adaptive systems theory offers a lens for understanding important leadership attributes. METHODS: A review of the literature on leadership from a complex adaptive system perspective identified nine leadership attributes hypothesized to support practice change: motivating others to engage in change, managing abuse of power and social influence, assuring psychological safety, enhancing communication and information sharing, generating a learning organization, instilling a collective mind, cultivating teamwork, fostering emergent leaders, and encouraging boundary spanning. Through a secondary qualitative analysis, we applied these attributes to nine practices ranking high on both a practice learning and leadership scale from the Learning from Effective Ambulatory Practice (LEAP) project to see if and how these attributes manifest in high-performing innovative practices. FINDINGS: We found all nine attributes identified from the literature were evident and seemed important during a time of change and innovation. We identified two additional attributes-anticipating the future and developing formal processes-that we found to be important. Complexity science suggests a hypothesized developmental model in which some attributes are foundational and necessary for the emergence of others. CONCLUSIONS: Successful primary care practices exhibit a diversity of strong local leadership attributes. To meet the realities of a rapidly changing health care environment, training of current and future primary care leaders needs to be more comprehensive and move beyond motivating others and developing effective teams.


Assuntos
Política de Saúde , Liderança , Atenção Primária à Saúde/tendências , Esgotamento Profissional/prevenção & controle , Humanos , Pesquisa Qualitativa , Estresse Psicológico/prevenção & controle , Estados Unidos
6.
Ann Fam Med ; 17(3): 250-256, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-31085529

RESUMO

Observers of the past 10 to 15 years have witnessed the simultaneous growth of dramatic changes in the practice of primary care and the emergence of a new field of dissemination and implementation science (D&I). Most current implementation science research in primary care assumes practices are not meeting externally derived standards and need external support to meet these demands. After a decade of initiatives, many stakeholders now question the return on their investments. Overall improvements in quality metrics, utilization cost savings, and patient experience have been less than anticipated. While recently conducting a research project in primary care practices, we unexpectedly discovered 3 practices that profoundly shifted our thinking about the sources and directionality of practice change and the underlying assumptions of D&I. Inspired by these practices-along with systems thinking, complexity theory, action research, and the collaborative approaches of community-based participatory research-we propose a reimagining of D&I theory to empower practices. We shift the emphasis regarding the source and direction of change from outside-in to inside-out Such a shift has the potential to open a new frontier in the science of dissemination and implementation and inform better health policy.


Assuntos
Ciência da Implementação , Padrões de Prática Médica , Atenção Primária à Saúde/normas , Pesquisa Participativa Baseada na Comunidade , Humanos , Atenção Primária à Saúde/economia , Atenção Primária à Saúde/tendências , Pesquisa Qualitativa
7.
Appl Clin Inform ; 7(4): 1168-1181, 2016 12 14.
Artigo em Inglês | MEDLINE | ID: mdl-27966005

RESUMO

INTRODUCTION: Spending on pharmaceuticals in the US reached $373.9 billion in 2014. Therapeutic interchange offers potential medication cost savings by replacing a prescribed drug for an equally efficacious therapeutic alternative. METHODS: Hard-stop therapeutic interchange recommendation alerts were developed for four medication classes (HMG-CoA reductase inhibitors, serotonin receptor agonists, intranasal steroid sprays, and proton-pump inhibitors) in an electronic prescription-writing tool for outpatient prescriptions. Using prescription data from January 2012 to June 2015, the Compliance Ratio (CR) was calculated by dividing the number of prescriptions with recommended therapeutic interchange medications by the number of prescriptions with non-recommended medications to measure effectiveness. To explore potential cost savings, prescription data and medication costs were analyzed for the 45,000 Vanderbilt Employee Health Plan members. RESULTS: For all medication classes, significant improvements were demonstrated - the CR improved (proton-pump inhibitors 2.8 to 5.32, nasal steroids 2.44 to 8.16, statins 2.06 to 5.51, and serotonin receptor agonists 0.8 to 1.52). Quarterly savings through the four therapeutic interchange interventions combined exceeded $200,000 with an estimated annual savings for the health plan of $800,000, or more than $17 per member. CONCLUSION: A therapeutic interchange clinical decision support tool at the point of prescribing resulted in increased compliance with recommendations for outpatient prescriptions while producing substantial cost savings to the Vanderbilt Employee Health Plan - $17.77 per member per year. Therapeutic interchange rules require rational targeting, appropriate governance, and vigilant content updates.


Assuntos
Custos e Análise de Custo , Substituição de Medicamentos/economia , Prescrição Eletrônica/economia , Registros Eletrônicos de Saúde
8.
J Am Board Fam Med ; 29 Suppl 1: S19-23, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27387159

RESUMO

Family physicians hunger in a time of excess. This article reviews the importance of healing relationships in the craft of family medicine and several of the forces that have undermined the ability to achieve effective healing relationships. Several directions forward are recommended and a promise shared.


Assuntos
Atitude do Pessoal de Saúde , Medicina de Família e Comunidade/métodos , Relações Médico-Paciente , Médicos de Família/psicologia , Atenção Primária à Saúde/métodos , Humanos , Fatores de Tempo
9.
J Am Board Fam Med ; 29(2): 248-53, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26957382

RESUMO

BACKGROUND: Culture is transmitted through language and reflects a group's values, yet much of the current language used to describe the new patient-centered medical home (PCMH) is a carryover from the traditional, physician-centric model of care. This language creates a subtle yet powerful force that can perpetuate the status quo, despite transformation efforts. This article describes new terminology that some innovative primary care practices are using to support the transformational culture of the PCMH. METHODS: Data come from the Agency for Healthcare Research and Quality-funded Working Conference for PCMH Innovation 2013, which convened 10 innovative practices and interdisciplinary content experts to discuss innovative practice redesign. Session and interview transcripts were analyzed using a grounded theory approach to identify patterns and explore their significance. RESULTS: Language innovations are used by 5 practices. Carefully selected terms facilitate creative reimagining of traditional roles and spaces through connotations that highlight practice goals. Participants felt that the language used was important for reinforcing substantive changes. CONCLUSIONS: Reworking well-established vernacular requires openness to change. True transformation does not, however, occur through a simple relabeling of old concepts. New terminology must represent values to which practices genuinely aspire, although caution is advised when using language to support cultural and clinical change.


Assuntos
Assistência à Saúde Culturalmente Competente , Assistência Centrada no Paciente/métodos , Atenção Primária à Saúde/métodos , Terminologia como Assunto , Atitude do Pessoal de Saúde , Humanos , Inovação Organizacional , Médicos , Qualidade da Assistência à Saúde , Estados Unidos
10.
Implement Sci ; 10: 31, 2015 Mar 10.
Artigo em Inglês | MEDLINE | ID: mdl-25889831

RESUMO

BACKGROUND: In healthcare change interventions, on-the-ground learning about the implementation process is often lost because of a primary focus on outcome improvements. This paper describes the Learning Evaluation, a methodological approach that blends quality improvement and implementation research methods to study healthcare innovations. METHODS: Learning Evaluation is an approach to multi-organization assessment. Qualitative and quantitative data are collected to conduct real-time assessment of implementation processes while also assessing changes in context, facilitating quality improvement using run charts and audit and feedback, and generating transportable lessons. Five principles are the foundation of this approach: (1) gather data to describe changes made by healthcare organizations and how changes are implemented; (2) collect process and outcome data relevant to healthcare organizations and to the research team; (3) assess multi-level contextual factors that affect implementation, process, outcome, and transportability; (4) assist healthcare organizations in using data for continuous quality improvement; and (5) operationalize common measurement strategies to generate transportable results. RESULTS: Learning Evaluation principles are applied across organizations by the following: (1) establishing a detailed understanding of the baseline implementation plan; (2) identifying target populations and tracking relevant process measures; (3) collecting and analyzing real-time quantitative and qualitative data on important contextual factors; (4) synthesizing data and emerging findings and sharing with stakeholders on an ongoing basis; and (5) harmonizing and fostering learning from process and outcome data. Application to a multi-site program focused on primary care and behavioral health integration shows the feasibility and utility of Learning Evaluation for generating real-time insights into evolving implementation processes. CONCLUSIONS: Learning Evaluation generates systematic and rigorous cross-organizational findings about implementing healthcare innovations while also enhancing organizational capacity and accelerating translation of findings by facilitating continuous learning within individual sites. Researchers evaluating change initiatives and healthcare organizations implementing improvement initiatives may benefit from a Learning Evaluation approach.


Assuntos
Difusão de Inovações , Pesquisa sobre Serviços de Saúde/métodos , Desenvolvimento de Programas , Melhoria de Qualidade , Serviços de Saúde/normas , Humanos , Inovação Organizacional , Avaliação de Processos e Resultados em Cuidados de Saúde/métodos , Desenvolvimento de Programas/métodos , Melhoria de Qualidade/organização & administração
11.
Annu Rev Public Health ; 35: 423-42, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24641561

RESUMO

Metrics focus attention on what is important. Balanced metrics of primary health care inform purpose and aspiration as well as performance. Purpose in primary health care is about improving the health of people and populations in their community contexts. It is informed by metrics that include long-term, meaning- and relationship-focused perspectives. Aspirational uses of metrics inspire evolving insights and iterative improvement, using a collaborative, developmental perspective. Performance metrics assess the complex interactions among primary care tenets of accessibility, a whole-person focus, integration and coordination of care, and ongoing relationships with individuals, families, and communities; primary health care principles of inclusion and equity, a focus on people's needs, multilevel integration of health, collaborative policy dialogue, and stakeholder participation; basic and goal-directed health care, prioritization, development, and multilevel health outcomes. Environments that support reflection, development, and collaborative action are necessary for metrics to advance health and minimize unintended consequences.


Assuntos
Avaliação de Processos e Resultados em Cuidados de Saúde/métodos , Atenção Primária à Saúde/organização & administração , Qualidade da Assistência à Saúde/organização & administração , Serviços de Saúde Comunitária/organização & administração , Meio Ambiente , Objetivos , Acessibilidade aos Serviços de Saúde/organização & administração , Humanos , Atenção Primária à Saúde/normas , Indicadores de Qualidade em Assistência à Saúde , Qualidade da Assistência à Saúde/normas
12.
Med Care ; 52(2): 101-11, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24374421

RESUMO

PURPOSE: Innovative workforce models are being developed and implemented to meet the changing demands of primary care. A literature review was conducted to construct a typology of workforce models used by primary care practices. METHODS: Ovid Medline, CINAHL, and PsycInfo were used to identify published descriptions of the primary care workforce that deviated from what would be expected in the typical practice in the year 2000. Expert consultants identified additional articles that would not show up in a regular computerized search. Full texts of relevant articles were read and matrices for sorting articles were developed. Each article was reviewed and assigned to one of 18 cells in the matrices. Articles within each cell were then read again to identify patterns and develop an understanding of the full spectrum of workforce innovation within each category. RESULTS: This synthesis led to the development of a typology of workforce innovations represented in the literature. Many workforce innovations added personnel to existing practices, whereas others sought to retrain existing personnel or even develop roles outside the traditional practice. Most of these sought to minimize the impact on the existing practice roles and functions, particularly that of physicians. The synthesis also identified recent innovations which attempted to fundamentally transform the existing practice, with transformation being defined as a change in practice members' governing variables or values in regard to their workforce role. CONCLUSIONS: Most conceptualizations of the primary care workforce described in the literature do not reflect the level of innovation needed to meet the needs of the burgeoning numbers of patients with complex health issues, the necessity for roles and identities of physicians to change, and the call for fundamentally redesigned practices. However, we identified 5 key workforce innovation concepts that emerged from the literature: team care, population focus, additional resource support, creating workforce connections, and role change.


Assuntos
Inovação Organizacional , Atenção Primária à Saúde , Humanos , Modelos Organizacionais , Atenção Primária à Saúde/organização & administração , Atenção Primária à Saúde/tendências , Estados Unidos , Recursos Humanos
13.
Health Aff (Millwood) ; 30(3): 439-45, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21383361

RESUMO

Many commentators view the conversion of small, independent primary care practices into patient-centered medical homes as a vital step in creating a better-performing health care system. The country's first national medical home demonstration, which ran from June 1, 2006, to May 31, 2008, and involved thirty-six practices, showed that this transformation can be lengthy and complex. Among other features, the transformation process requires an internal capability for organizational learning and development; changes in the way primary care clinicians think about themselves and their relationships with patients as well as other clinicians on the care team; and awareness on the part of primary care clinicians that they will need to make long-term commitments to change that may require three to five years of external assistance. Additionally, transforming primary care requires synchronizing practice redesign with development of the health care "neighborhood," which is made up of a broad range of health and health care resources available to patients. It also requires payment reform that supports practice development and a policy environment that sets reasonable expectations and time frames for the adoption of appropriate innovations.


Assuntos
Assistência Centrada no Paciente/organização & administração , Gerenciamento da Prática Profissional , Redução de Custos , Reforma dos Serviços de Saúde , Humanos , Inovação Organizacional , Projetos Piloto , Garantia da Qualidade dos Cuidados de Saúde , Estados Unidos
14.
Ann Fam Med ; 8 Suppl 1: S9-20; S92, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20530398

RESUMO

PURPOSE: Understanding the transformation of primary care practices to patient-centered medical homes (PCMHs) requires making sense of the change process, multilevel outcomes, and context. We describe the methods used to evaluate the country's first national demonstration project of the PCMH concept, with an emphasis on the quantitative measures and lessons for multimethod evaluation approaches. METHODS: The National Demonstration Project (NDP) was a group-randomized clinical trial of facilitated and self-directed implementation strategies for the PCMH. An independent evaluation team developed an integrated package of quantitative and qualitative methods to evaluate the process and outcomes of the NDP for practices and patients. Data were collected by an ethnographic analyst and a research nurse who visited each practice, and from multiple data sources including a medical record audit, patient and staff surveys, direct observation, interviews, and text review. Analyses aimed to provide real-time feedback to the NDP implementation team and lessons that would be transferable to the larger practice, policy, education, and research communities. RESULTS: Real-time analyses and feedback appeared to be helpful to the facilitators. Medical record audits provided data on process-of-care outcomes. Patient surveys contributed important information about patient-rated primary care attributes and patient-centered outcomes. Clinician and staff surveys provided important practice experience and organizational data. Ethnographic observations supplied insights about the process of practice development. Most practices were not able to provide detailed financial information. CONCLUSIONS: A multimethod approach is challenging, but feasible and vital to understanding the process and outcome of a practice development process. Additional longitudinal follow-up of NDP practices and their patients is needed.


Assuntos
Inovação Organizacional , Assistência Centrada no Paciente/normas , Análise de Variância , Atitude do Pessoal de Saúde , Análise Fatorial , Pesquisa sobre Serviços de Saúde/economia , Pesquisa sobre Serviços de Saúde/métodos , Humanos , Modelos Organizacionais , Avaliação de Processos e Resultados em Cuidados de Saúde/economia , Avaliação de Processos e Resultados em Cuidados de Saúde/métodos , Assistência Centrada no Paciente/métodos , Assistência Centrada no Paciente/tendências , Desenvolvimento de Programas/economia , Desenvolvimento de Programas/métodos , Garantia da Qualidade dos Cuidados de Saúde/métodos , Ensaios Clínicos Controlados Aleatórios como Assunto
15.
J Gen Intern Med ; 25(6): 601-12, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20467909

RESUMO

The patient-centered medical home (PCMH) is four things: 1) the fundamental tenets of primary care: first contact access, comprehensiveness, integration/coordination, and relationships involving sustained partnership; 2) new ways of organizing practice; 3) development of practices' internal capabilities, and 4) related health care system and reimbursement changes. All of these are focused on improving the health of whole people, families, communities and populations, and on increasing the value of healthcare. The value of the fundamental tenets of primary care is well established. This value includes higher health care quality, better whole-person and population health, lower cost and reduced inequalities compared to healthcare systems not based on primary care. The needed practice organizational and health care system change aspects of the PCMH are still evolving in highly related ways. The PCMH will continue to evolve as evidence comes in from hundreds of demonstrations and experiments ongoing around the country, and as the local and larger healthcare systems change. Measuring the PCMH involves the following: Giving primacy to the core tenets of primary care. Assessing practice and system changes that are hypothesized to provide added value Assessing development of practices' core processes and adaptive reserve. Assessing integration with more functional healthcare system and community resources. Evaluating the potential for unintended negative consequences from valuing the more easily measured instrumental features of the PCMH over the fundamental relationship and whole system aspects. Recognizing that since a fundamental benefit of primary care is its adaptability to diverse people, populations and systems, functional PCMHs will look different in different settings. Efforts to transform practice to patient-centered medical homes must recognize, assess and value the fundamental features of primary care that provide personalized, equitable health care and foster individual and population health.


Assuntos
Assistência Centrada no Paciente/organização & administração , Atenção Primária à Saúde , Atenção à Saúde , Reforma dos Serviços de Saúde , Humanos , Qualidade da Assistência à Saúde
16.
Jt Comm J Qual Patient Saf ; 35(9): 457-66, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19769206

RESUMO

BACKGROUND: Understanding the role of relationships health care organizations (HCOs) offers opportunities for shaping health care delivery. When quality is treated as a property arising from the relationships within HCOs, then different contributors of quality can be investigated and more effective strategies for improvement can be developed. METHODS: Data were drawn from four large National Institutes of Health (NIH)-funded studies, and an iterative analytic strategy and a grounded theory approach were used to understand the characteristics of relationships within primary care practices. This multimethod approach amassed rich and comparable data sets in all four studies, which were all aimed at primary care practice improvement. The broad range of data included direct observation of practices during work activities and of patient-clinician interactions, in-depth interviews with physicians and other key staff members, surveys, structured checklists of office environments, and chart reviews. Analyses focused on characteristics of relationships in practices that exhibited a range of success in achieving practice improvement. Complex adaptive systems theory informed these analyses. FINDINGS: Trust, mindfulness, heedfulness, respectful interaction, diversity, social/task relatedness, and rich/lean communication were identified as important in practice improvement. A model of practice relationships was developed to describe how these characteristics work together and interact with reflection, sensemaking, and learning to influence practice-level quality outcomes. DISCUSSION: Although this model of practice relationships was developed from data collected in primary care practices, which differ from other HCOs in some important ways, the ideas that quality is emergent and that relationships influence quality of care are universally important for all HCOs and all medical specialties.


Assuntos
Atenção à Saúde/métodos , Relações Interprofissionais , Inovação Organizacional , Atenção Primária à Saúde/normas , Qualidade da Assistência à Saúde , Humanos , Modelos Organizacionais , Cultura Organizacional , Atenção Primária à Saúde/organização & administração , Estados Unidos
17.
Ann Fam Med ; 7(3): 254-60, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19433844

RESUMO

The patient-centered medical home (PCMH) is emerging as a potential catalyst for multiple health care reform efforts. Demonstration projects are beginning in nearly every state, with a broad base of support from employers, insurers, state and federal agencies, and professional organizations. A sense of urgency to show the feasibility of the PCMH, along with a 3-tiered recognition process of the National Committee on Quality Assurance, are influencing the design and implementation of many demonstrations. In June 2006, the American Academy of Family Physicians launched the first National Demonstration Project (NDP) to test a model of the PCMH in a diverse national sample of 36 family practices. The authors make up an independent evaluation team for the NDP that used a multimethod evaluation strategy, including direct observation, in-depth interviews, chart audit, and patient and practice surveys. Early lessons from the real-time qualitative analysis of the NDP raise some serious concerns about the current direction of many of the proposed PCMH demonstration projects and point to some positive opportunities. We describe 6 early lessons from the NDP that address these concerns and then offer 4 recommendations for those assisting the transformation of primary care practices and 4 recommendations for individual practices attempting transformation.


Assuntos
Reforma dos Serviços de Saúde/métodos , Assistência Centrada no Paciente/métodos , Política de Saúde , Humanos , Inovação Organizacional , Relações Médico-Paciente , Médicos de Família , Atenção Primária à Saúde/métodos , Sociedades Médicas , Estados Unidos
19.
Environ Sci Technol ; 39(24): 9471-7, 2005 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-16475324

RESUMO

The interaction of sunlight and dissolved chromophoric matter produces reactive chemical species that are significant in the removal of dimethyl sulfide (DMS) in the surface ocean. Using artificial solar radiation, we examined the role of several inorganic components of seawater on the kinetics of NO3- -photolysis-induced DMS removal in aqueous solution. This study strongly suggests that NO3- photolysis products react significantly with DMS in aqueous solution possibly via an electrophilic attack on the electron-rich sulfur atom. This supports previous field observations that indicate that NO3- photolysis has a substantial control on DMS photochemistry in nutrient-rich waters. A key finding of this research is that the oxidation rate of DMS induced by NO3- photolysis is dramatically enhanced in the presence of bromide ion. Moreover, our results suggest that bicarbonate/carbonate ions are involved in free radical production/scavenging processes important for DMS photochemistry. These reactions are pH dependent. We propose that DMS removal by some selective free radicals derived from bromide and bicarbonate/carbonate ion oxidation is a potentially important and previously unrecognized pathway for DMS photodegradation in marine waters.


Assuntos
Nitratos/metabolismo , Fotólise , Sulfetos/metabolismo , Luz Solar , Poluentes Químicos da Água/metabolismo , Biodegradação Ambiental , Brometos/análise , Brometos/metabolismo , Sequestradores de Radicais Livres/química , Concentração de Íons de Hidrogênio , Cinética , Modelos Químicos , Oxirredução , Fotoquímica , Água do Mar , Poluentes Químicos da Água/análise
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