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‣ Avaliação longitudinal de pacientes portadores de esquizofrenia e transtorno esquizofreniforme utilizando ressonância magnética de crânio; Longitudinal magnetic resonance imaging study of schizophrenia and schizophreniform disorder

Spanghero, Maristela Schaufelberger
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 13/08/2008 Português
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Alterações morfométricas cerebrais em pacientes com esquizofrenia têm sido descritas em muitos estudos utilizando ressonância magnética estrutural, sendo as mais consistentes o aumento ventricular e a redução do volume de substância cinzenta em neocórtex pré-frontal e temporal, ínsula, tálamo e no hipocampo/giro parahipocampal. No entanto, a natureza e o curso dessas alterações ainda não foram esclarecidos. Embora a principal hipótese a respeito da etiopatogenia da esquizofrenia sugira a presença de alterações anatômicas de início precoce e estáveis ao longo da doença, estudos longitudinais de ressonância magnética estrutural a partir do primeiro episódio psicótico têm indicado que, apesar de observáveis já no início da doença, ou mesmo antes do surgimento da mesma, algumas alterações podem ser progressivas, principalmente nos primeiros anos. Neste trabalho, foi comparado, transversal e longitudinalmente, o volume de substância cinzenta entre pacientes com esquizofrenia e transtorno esquizofreniforme após o primeiro contato com serviços de saúde e controles não psicóticos. As imagens de ressonância magnética estrutural de 62 pacientes e 94 controles procedentes da mesma área de captação...

‣ Recrutamento de participantes no Estudo Longitudinal de Saúde do Adulto; Participants recruitment in ELSA-Brasil (Brazilian Longitudinal Study for Adult Health)

Aquino, Estela Maria Motta Lima Leão de; Araujo, Maria Jenny Silva; Almeida, Maria da Conceição Chagas de; Silva, Patrícia Conceição da; Andrade, Célia Regina de; Cade, Nagela Valadão; Carvalho, Marilia Sá; Figueiredo, Roberta Carvalho de; Fonsec
Fonte: Universidade Federal do Rio Grande do Sul Publicador: Universidade Federal do Rio Grande do Sul
Tipo: Artigo de Revista Científica Formato: application/pdf
Português
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OBJETIVO: Apresentar as estratégias de comunicação e recrutamento no Estudo Longitudinal de Saúde do Adulto (ELSA-Brasil) e discutir os resultados alcançados na constituição da coorte. MÉTODOS: As estratégias foram voltadas à divulgação, à institucionalização e ao recrutamento propriamente dito. As ações de comunicação pretenderam promover o fortalecimento de imagem institucional positiva para o estudo, a gestão de conhecimentos e o diálogo eficaz com seu público-alvo. Foi criado web site oficial visando dialogar com diferentes públicos, funcionar como difusor científico e contribuir para a consolidação da imagem do estudo perante a sociedade. RESULTADOS: Foram recrutados 16.435 mulheres e homens, servidores ativos e aposentados de seis instituições públicas de ensino e pesquisa para constituir a coorte de 15.105 participantes. As metas de recrutamento foram plenamente alcançadas nos seis centros, com leve predomínio de mulheres e daqueles mais jovens, e um pouco menos de servidores com menor escolarização. CONCLUSÕES: As estratégias utilizadas se mostraram adequadas e essenciais para o sucesso da captação e participação dos servidores.; OBJECTIVE: To present the recruitment and communication strategies of the ELSA-Brasil (Estudo Longitudinal de Saúde do Adulto – Brazilian Longitudinal Study for Adult Health) METHODS: The strategies were directed at dissemination...

‣ What Can We Learn From Longitudinal Studies of Adult Development?

Schaie, K. Warner
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em //2005 Português
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This article distinguishes between normal and pathological aging, provides an interdisciplinary context, and then considers a sample case of cognitive aging. Developmental influences on cognition include the physiological infrastructure, genetic predispositions, and environmental influences. Different types of longitudinal studies are distinguished, and contrasting findings of cross-sectional and longitudinal are examined in the sample case of the Seattle Longitudinal Study. Also considered is the longitudinal context for intervention studies and the role of longitudinal family studies in assessing rate of aging and generational differences in rates of aging. Finally, attention is given to the role of longitudinal studies in the early detection of risk for dementia in advanced age.

‣ GENETIC MODEL FOR LONGITUDINAL STUDIES OF AGING, HEALTH, AND LONGEVITY AND ITS POTENTIAL APPLICATION TO INCOMPLETE DATA

Arbeev, Konstantin G.; Akushevich, Igor; Kulminski, Alexander M.; Arbeeva, Liubov S.; Akushevich, Lucy; Ukraintseva, Svetlana V.; Culminskaya, Irina V.; Yashin, Anatoli I.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Português
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Many longitudinal studies of aging collect genetic information only for a sub-sample of participants of the study. These data also do not include recent findings, new ideas and methodological concepts developed by distinct groups of researchers. The formal statistical analyses of genetic data ignore this additional information and therefore cannot utilize the entire research potential of the data. In this paper, we present a stochastic model for studying such longitudinal data in joint analyses of genetic and non-genetic sub-samples. The model incorporates several major concepts of aging known to date and usually studied independently. These include age-specific physiological norms, allostasis and allostatic load, stochasticity, and decline in stress resistance and adaptive capacity with age. The approach allows for studying all these concepts in their mutual connection, even if respective mechanisms are not directly measured in data (which is typical for longitudinal data available to date). The model takes into account dependence of longitudinal indices and hazard rates on genetic markers and permits evaluation of all these characteristics for carriers of different alleles (genotypes) to address questions concerning genetic influence on aging-related characteristics. The method is based on extracting genetic information from the entire sample of longitudinal data consisting of genetic and non-genetic sub-samples. Thus it results in a substantial increase in the accuracy of statistical estimates of genetic parameters compared to methods that use only information from a genetic sub-sample. Such an increase is achieved without collecting additional genetic data. Simulation studies illustrate the increase in the accuracy in different scenarios for datasets structurally similar to the Framingham Heart Study. Possible applications of the model and its further generalizations are discussed.

‣ Integrative Data Analysis through Coordination of Measurement and Analysis Protocol across Independent Longitudinal Studies

Hofer, Scott M.; Piccinin, Andrea M.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /06/2009 Português
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Replication of research findings across independent longitudinal studies is essential for a cumulative and innovative developmental science. Meta-analysis of longitudinal studies is often limited by the amount of published information on particular research questions, the complexity of longitudinal designs and sophistication of analyses, and practical limits on full reporting of results. In many cases, cross-study differences in sample composition and measurements impede or lessen the utility of pooled data analysis. A collaborative, coordinated analysis approach can provide a broad foundation for cumulating scientific knowledge by facilitating efficient analysis of multiple studies in ways that maximize comparability of results and permit evaluation of study differences. The goal of such an approach is to maximize opportunities for replication and extension of findings across longitudinal studies through open access to analysis scripts and output for published results, permitting modification, evaluation, and extension of alternative statistical models, and application to additional data sets. Drawing on the cognitive aging literature as an example, we articulate some of the challenges of meta-analytic and pooled-data approaches and introduce a coordinated analysis approach as an important avenue for maximizing the comparability...

‣ An Overview of the Design, Implementation, and Analyses of Longitudinal Studies on Aging

Newman, Anne B.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /10/2010 Português
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Longitudinal studies have contributed substantially to understanding of aging and geriatric syndromes. These efforts have provided a base of knowledge of the critical factors to consider in designing and implementing new longitudinal studies in older adults. This review highlights some of the major considerations in planning and implementing this type of study. Longitudinal studies can assess change over time and specific disease endpoints. Such projects require multidisciplinary teams with expertise in the many health and contextual factors that must be considered. Recent advances in study design include the use of imaging and biomarkers to assess mechanisms and approaches that raise the ceiling on measurement and integrate assessment of exposures over time. Study implementation requires careful planning and monitoring to maintain fidelity to the scientific goals. Analysis of longitudinal data requires approaches that account for inevitable missing data. New studies should take advantage of the experience obtained from longitudinal studies on aging already conducted.

‣ Translating Research to Promote Healthy Aging: The Complimentary Role of Longitudinal Studies and Clinical Trials

Guralnik, Jack M.; Kritchevsky, Stephen B.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /10/2010 Português
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An important challenge in epidemiology is the difficulty in inferring causality from observational studies. Even the best longitudinal studies have limitations in this regard, and when clinical trials are feasible they will provide more definite evidence of causality. However, even when clinical trials are feasible, we can learn a great deal about the disease process, assessment techniques, subject selection criteria, and the impact of potential interventions from longitudinal studies. This review covers the theoretical issues supporting the value and limitations of longitudinal studies, the practical utilization in clinical trials of different aspects of knowledge that can be gained from longitudinal studies, critical issues in the translation of longitudinal observational studies into clinical trials, and the value of observational studies in broadening the applicability of specific trials. Relevant issues are illustrated with examples of both unsuccessful and successful trials, with a major emphasis on clinical trials of physical activity in older persons.

‣ A Review of Selected Longitudinal Studies on Aging: Past Findings and Future Directions

Stanziano, Damian C.; Whitehurst, Michael; Graham, Patricia; Roos, Bernard A.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /10/2010 Português
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A review of the 51 longitudinal aging studies currently in the National Institute on Aging Database of Longitudinal Studies was conducted to identify major information gaps and areas for future research. Database information, which included posted study summaries, study details from principal investigators or directors of these projects, and more than 300 recent publications based on the studies, were reviewed to identify significant findings of each study. This review summarizes the main findings and identifies the need for future work within six broad study topics: cognitive function, socioeconomic status, health and physical performance, morbidity and mortality predictors, healthcare costs, and genetics. The percentages of these 51 studies addressing the four most common topics are as follows: cognitive function (44%), health and physical performance (51%), socioeconomic factors (55%), and predictors of morbidity/mortality (63%). Important areas not addressed to any major degree were healthcare costs and genetics. Only two studies reported findings on genetics or epigenetics of human aging, and only a single study reported on associations between aging and financial costs, especially healthcare costs, which have been postulated to be important determinants of care and life quality. The results of this review...

‣ Neuropsychological Performance in Older Patients With Schizophrenia: A Meta-Analysis of Cross-sectional and Longitudinal Studies

Irani, Farzin; Kalkstein, Solomon; Moberg, Emily A.; Moberg, Paul J.
Fonte: Oxford University Press Publicador: Oxford University Press
Tipo: Artigo de Revista Científica
Português
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Objective: Cognitive deficits are among the most reliable predictors of functional impairment in schizophrenia and a particular concern for older individuals with schizophrenia. Previous reviews have focused on the nature and course of cognitive impairments in younger cohorts, but a quantitative meta-analysis in older patients is pending. Method: A previously used search strategy identified studies assessing performance on tests of global cognition and specific neuropsychological domains in older patients with schizophrenia and age-matched comparison groups. Both cross-sectional and longitudinal studies were included. Potential methodological, demographic, and clinical moderators were analyzed. Results: Twenty-nine cross-sectional (2110 patients, 1738 comparison subjects) and 14 longitudinal (954 patients) studies met inclusion criteria. Patients were approximately 65 years old, with 11 years of education, 53% male and 79% Caucasian. Longitudinal analysis (range 1–6 years) revealed homogeneity with small effect sizes (d = −0.097) being observed. Cross-sectional analyses revealed large and heterogeneous deficits in global cognition (d = −1.19) and on specific neuropsychological tests (d = −0.7 to −1.14). Moderator analysis revealed a significant role for demographic (age...

‣ Change over Time: Conducting Longitudinal Studies of Children’s Cognitive Development

Grammer, Jennie K.; Coffman, Jennifer L.; Ornstein, Peter A.; Morrison, Frederick J.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Português
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Developmental scientists have argued that the implementation of longitudinal methods is necessary for obtaining an accurate picture of the nature and sources of developmental change (Magnusson & Cairns, 1996; Morrison & Ornstein, 1996; Magnusson & Stattin, 2006). Developmentalists studying cognition have been relatively slow to embrace longitudinal research, and thus few exemplar studies have tracked individual children’s cognitive performance over time and even fewer have examined contexts that are associated with this growth. In this article we first outline some of the benefits of implementing longitudinal designs. Using illustrations from existing studies of children’s basic cognitive development and of their school-based academic performance, we discuss when it may be appropriate to employ longitudinal (versus other) methods. We then outline methods for integrating longitudinal data into one’s research portfolio, contrasting the leveraging of existing longitudinal data sets with the launching of new longitudinal studies in order to address specific questions concerning cognitive development. Finally, for those who are interested in conducting longitudinal investigations of their own, we provide practical on-the-ground guidelines for designing and carrying out such studies of cognitive development.

‣ Cognition, Function, and Disability in Patients With Schizophrenia: A Review of Longitudinal Studies

Rajji, Tarek K; Miranda, Dielle; Mulsant, Benoit H
Fonte: The Canadian Psychiatric Association Publicador: The Canadian Psychiatric Association
Tipo: Artigo de Revista Científica
Publicado em /01/2014 Português
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This paper aims to review longitudinal studies assessing the impact of cognition on function in patients with schizophrenia. PubMed and Scholars Portal were searched using search terms related to schizophrenia, cognition, function, and longitudinal studies. Some functional abilities have been studied more than others. Some studies suggest that the impact of cognition on function depends on the severity of baseline cognitive deficits. Other studies suggest that the impact of cognition on function depend on what phase of the illness the patient is in or what stage in that particular function the patient is involved in. Finally, few studies assessed interactions between cognition and other aspects of schizophrenia in predicting function, such as functional capacity, insight, motivation, and negative symptoms. More longitudinal and comprehensive studies are needed. A focus on community living is of high public significance as patients with schizophrenia continue to grow old. Future studies should also focus on the longitudinal interactions between cognition and other dimensions of schizophrenia as well as on the biological factors that underlie these interactions.

‣ Longitudinal design considerations to optimize power to detect variances and covariances among rates of change: Simulation results based on actual longitudinal studies

Rast, Philippe; Hofer, Scott M.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Português
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We investigated the power to detect variances and covariances in rates of change in the context of existing longitudinal studies using linear bivariate growth curve models. Power was estimated by means of Monte Carlo simulations. Our findings show that typical longitudinal study designs have substantial power to detect both variances and covariances among rates of change in a variety of cognitive, physical functioning, and mental health outcomes. We performed simulations to investigate the interplay among number and spacing of occasions, total duration of the study, effect size, and error variance on power and required sample size. The relation between growth rate reliability (GRR) and effect size to the sample size required to detect power ≥ .80 was non-linear, with rapidly decreasing sample sizes needed as GRR increases. The results presented here stand in contrast to previous simulation results and recommendations (Hertzog, Lindenberger, Ghisletta, & von Oertzen, 2006; Hertzog, von Oertzen, Ghisletta, & Lindenberger, 2008; von Oertzen, Ghisletta, & Lindenberger, 2010), which are limited due to confounds between study length and number of waves, error variance with GCR, and parameter values which are largely out of bounds of actual study values. Power to detect change is generally low in the early phases (i.e. first years) of longitudinal studies but can substantially increase if the design is optimized. We recommend additional assessments...

‣ Kriminologische Verlaufs- und Kohortenforschungen - Eine Bibliographie; Birth Cohort and other Longitudinal Studies of Criminal Careers and Desistance in Criminology: A Comprehensive Bibliography

Kerner, Hans-Jürgen; Weitekamp, Elmar G. M.
Fonte: Universität Tübingen Publicador: Universität Tübingen
Tipo: Buch (Monographie)
Português
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Diese Bibliographie ist aus einem Projekt über vergleichende kriminologische Verlaufuntersuchungen, insbesondere sog. Kohortenstudien entstanden. Sie ist der Orientierung nach genuin international ausgerichtet, versucht also Veröffentlichungen über empirische Studien sowie sonstige Texte zur Materie aus der ganzen Welt zu erfassen. Da ein Großteil des Forschungen in den USA, in England und in den Skandinavischen Staaten durchgeführt wurde und auf Englisch dokumentiert ist, aber auch aus Gründen unserer begrenzten linguistischen Ressourcen, dominieren freilich im Ergebnis englischsprachige Veröffentlichungen zur Materie; deutschsprachige Veröffentlichungen wurden möglichst vollständig zu erfassen versucht; sonstige fremdsprachige Publikationen unterliegen einer deutlich stärker selektiven Auswahl. Die jüngere kriminologische Diskussion über den Ausstieg aus einer kriminellen Karriere ist mit berücksichtigt, jedoch nicht mit dem Anspruch auf Vollständigkeit, da in dem jüngsten Werk von John Laub und Robert Sampson (2003) der Forschungsstand gut aufgearbeitet ist.; The nucleus of this bibliography was created as part of a comparative criminological research project on longitudinal studies of delinquency and crime, particularly on birth cohort studies. We updated and augmented the content considerably over the years until the end of the year 2003. The bibliography is basically international in its scope and orientation. Most of the studies on the subject matter...

‣ Large-scale genome-wide association studies and meta-analyses of longitudinal change in adult lung function

Tang, W.; Kowgier, M.; Loth, D.W.; Soler Artigas, M.; Joubert, B.R.; Hodge, E.; Gharib, S.A.; Smith, A.V.; Ruczinski, I.; Gudnason, V.; Mathias, R.A.; Harris, T.B.; Hansel, N.N.; Launer, L.J.; Barnes, K.C.; Hansen, J.G.; Albrecht, E.; Aldrich, M.C.; Aller
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em //2014 Português
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BACKGROUND: Genome-wide association studies (GWAS) have identified numerous loci influencing cross-sectional lung function, but less is known about genes influencing longitudinal change in lung function. METHODS: We performed GWAS of the rate of change in forced expiratory volume in the first second (FEV1) in 14 longitudinal, population-based cohort studies comprising 27,249 adults of European ancestry using linear mixed effects model and combined cohort-specific results using fixed effect meta-analysis to identify novel genetic loci associated with longitudinal change in lung function. Gene expression analyses were subsequently performed for identified genetic loci. As a secondary aim, we estimated the mean rate of decline in FEV1 by smoking pattern, irrespective of genotypes, across these 14 studies using meta-analysis. RESULTS: The overall meta-analysis produced suggestive evidence for association at the novel IL16/STARD5/TMC3 locus on chromosome 15 (P  =  5.71 × 10(-7)). In addition, meta-analysis using the five cohorts with ≥3 FEV1 measurements per participant identified the novel ME3 locus on chromosome 11 (P  =  2.18 × 10(-8)) at genome-wide significance. Neither locus was associated with FEV1 decline in two additional cohort studies. We confirmed gene expression of IL16...

‣ Combining longitudinal studies showed prevalence of disease differed throughout older adulthood.

Bielak, Allison A. M.; Byles, Julie E.; Luszcz, Mary A.; Anstey, Kaarin J.
Fonte: Elsevier Publicador: Elsevier
Tipo: Artigo de Revista Científica Formato: 8 pages
Português
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OBJECTIVES: Disease prevalence rates are often generalized across the older adult age range. By pooling self-reported health data from five Australian longitudinal studies of aging, we were able to present disease prevalence rates by 5-year age bands and sex. We also investigated the influence of education on prevalence at each age range and compared our observed prevalence rates with those from the 2001 National Health Survey (NHS) to see if existing data could be used to augment national estimates. STUDY DESIGN AND SETTING: We used data on 12,718 adults between 60 and 105 years of age from the Dynamic Analyses to Optimise Ageing (DYNOPTA) project. RESULTS: Hypertension and arthritis were the most prevalent diseases, with approximately 30% of males and 45% of females having either condition. Nearly all diseases were most prevalent amongst older adults in their 70s and lower for individuals in their 60s, and 80s and older. The effect of education varied by disease and older age group. Prevalence rates from DYNOPTA were generally similar to those reported by the NHS. CONCLUSION: Disease prevalence is not consistent across older adulthood. Combining longitudinal studies provided a sufficient sample to estimate precise age divisions and can be used to supplement national estimates for specific populations.; NHMRC (National Health and Medical Research Council of Australia)

‣ Associação entre comportamentos externalizantes e baixo desempenho escolar: uma revisão de estudos prospectivos e longitudinais; Association between externalizing behavior and underachievement: a review of prospective and longitudinal studies

D'ABREU, Lylla Cysne Frota; MARTURANO, Edna Maria
Fonte: PPgPsi-UFRN Publicador: PPgPsi-UFRN
Tipo: Artigo de Revista Científica
Português
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Foi feito um levantamento na literatura de estudos prospectivos e longitudinais investigando a associação entre problemas de comportamento externalizantes e baixo desempenho escolar no ensino fundamental, no período de 1990 a 2006. Por meio dos sistemas PsycInfo, Medline, Lilacs, Scielo e Web of Science, foram selecionados e adquiridos 18 artigos, classificados em quatro categorias: estudos com amostras clínicas; estudos comparando grupos com ou sem comorbidade; estudos que buscam testar modelos de trajetória de desenvolvimento; estudos sobre precursores da associação entre problemas de comportamento e baixo desempenho escolar. A análise dos artigos evidencia que a co-ocorrência de baixo desempenho escolar e problemas externalizantes sugere a influência de variáveis antecedentes, como condições adversas na família e baixo nível socioeconômico. Indica, ainda, que a associação traz mau prognóstico às crianças, como comorbidades com transtornos psiquiátricos, posteriores problemas acadêmicos e de comportamento anti-social, evidenciando a situação de risco psicossocial em que se encontram.; A survey in the literature of prospective and longitudinal studies was made investigating the association between externalizing behavior and underachievement in the period of 1990-2006. It was used PsycInfo...

‣ Longitudinal designs, methods and analysis in psychiatric research

Anstey, Kaarin; Hofer, Scott
Fonte: SAGE Publications Publicador: SAGE Publications
Tipo: Artigo de Revista Científica
Português
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Objective: To outline the strengths and limitations of longitudinal research designs in psychiatry, and to describe different types of longitudinal designs and methods for analyzing longitudinal data. Method: Key references on longitudinal methods were reviewed and examples drawn from literature in psychiatry and psychology. Results: Longitudinal studies provide important information regarding the incidence and developmental trajectories of mental disorders. They allow for identification of risk factors and developmental concomitants. Recent developments in statistical methods for analyzing longitudinal data provide efficient estimates of change and predictors of change over time, identification and characteristics of distinct subgroups defined by change pattern, and improved methods for obtaining unbiased population estimates when data are incomplete. Conclusion: Longitudinal designs, methods and analysis can contribute to psychiatric studies on risk factors for common mental disorders, studies of early intervention and prevention and treatment outcomes.

‣ Estudos longitudinais sobre o crescimento somático e desempenho motor: delineamentos, desafios, necessidades; Longitudinal studies on somatic growth and motor performance: designs, challenges, needs.

Silva, Simonete Pereira da; Universidade Regional do Cariri. Departamento de Educação Física. Crato, CE. Brasil; Beunen, Gaston Prudence; Katholieke Universiteit Leuven. Leuven. Bélgica; Freitas, Duarte Luiz de; Universidade da Madeira. Departamento d
Fonte: Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil Publicador: Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; "Avaliado por Pares","Artigo Solicitado"; Literature review; "Avaliado por Pares", "Artigo Solicitado"; Revisão de literatura Formato: application/pdf
Publicado em 02/01/2013 Português
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DOI: http://dx.doi.org/10.5007/1980-0037.2013v15n1p130 O objetivo principal desta revisão é fornecer uma visão geral dos principais estudos longitudinais e longitudinais-mistos que se centraram sobre o crescimento somático, maturação biológica e, mais recentemente, também no desempenho físico. Somente foram considerados os estudos realizados na América do Norte, Europa e países de língua portuguesa. Em primeiro lugar, são apresentadas as principais considerações teóricas, características gerais, o delineamento do estudo e análise estatística multivariada dos dados. Na segunda parte, é edificado o panorama geral sobre os estudos emblemáticos de natureza longitudinal e longitudinal-mista. Finalmente, foram considerados alguns dos principais desafios que se colocam à pesquisa longitudinal.; DOI: http://dx.doi.org/10.5007/1980-0037.2013v15n1p130 The principle purpose of this review is to provide an overview of the major longitudinal and mixed longitudinal studies that focused on somatic growth, biological maturation and more recently also on physical performance. Only selected studies that were conducted in USA, Europe and Portuguese speaking countries will be considered. First, the main theoretical considerations...

‣ Estudos longitudinais e pesquisa na educação básica; Longitudinal studies and research in basic education

Bonamino, Ana Maria Catalano de; Pontifícia Universidade Católica do Rio de Janeiro; Oliveira, Lúcia Helena Gazólis de; Pontifícia Universidade Católica do Rio de Janeiro
Fonte: Linhas Críticas; Critical Lines Publicador: Linhas Críticas; Critical Lines
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; Formato: application/pdf
Publicado em 02/05/2013 Português
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Este artigo discute a adequação e o potencial dos dados longitudinais para o desenvolvimento de pesquisas educacionais. Apresenta as principais características tanto da avaliação nacional em larga escala como de um estudo longitudinal, e analisa as duas metodologias de coleta de dados envolvidas nestas iniciativas. Partindo da constatação de que começam a se formar, no Brasil, bancos de dados coletados longitudinalmente, o artigo apresenta e comenta duas pesquisas que utilizam dados desta natureza, com a finalidade de elucidar sua importância, especialmente na geração de evidências para as políticas de melhoria da qualidade na educação básica.; This article discusses the suitability and potential of longitudinal data for the development of educational research. It presents the main characteristics of large- scale national evaluations and of longitudinal studies, and examines two data collection methodologies involved in these initiatives. Starting from the observation that, in Brazil, databases collected longitudinally are starting to be formed, the article introduces and comments on two surveys that use such data for the purpose of elucidating their importance, especially as empirical data for the development of policies to improve the quality of basic education.   

‣ Comprehensive longitudinal studies of child health, development and behaviour in Jamaica: findings and policy impact

Samms-Vaughan,M
Fonte: West Indian Medical Journal Publicador: West Indian Medical Journal
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2008 Português
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BACKGROUND: Birth cohort and other longitudinal studies of children's health, development and behaviour have provided important information on child and adult outcomes. This has allowed evidence based policy and programme development targeted at issues specific to countries. Few studies have been conducted in developing countries. This paper reports on the findings and policy implications of two comprehensive longitudinal studies in Jamaica METHOD: The findings of the Jamaican Birth Cohort Studies, conducted between 1986 and 2003, and the Profiles Project, a longitudinal study commencing in 1999 when children were six years, were reviewed. Recommendations from the studies and their impact on policy and programme development for Jamaican children were identified RESULTS: Policy and programme impact were identified in areas of child poverty intervention, parenting, social activities, violence and aggression, health and nutrition, screening and early intervention, setting of standards for early childhood institutions, gender, early childhood indicators and education and training. Policy and programme impact were national, regional and international. CONCLUSION: Comprehensive longitudinal studies of children in developing countries, though costly...