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‣ Nutritional intervention programme among a Japanese-Brazilian community: procedures and results according to gender

DAMIAO, Renata; SARTORELLI, Daniela Saes; HIRAI, Amelia; MASSIMINO, Flavia; POLETTO, Juliana; BEVILACQUA, Marselle Rodrigues; CHAIM, Rita; SALVO, Vera Lucia Morais Antonio de; ASAKURA, Leiko; FERREIRA, Sandra Roberta Gouveia; ANDREONI, Solange; GIMENO, Su
Fonte: CAMBRIDGE UNIV PRESS Publicador: CAMBRIDGE UNIV PRESS
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
475.38805%
Objective: To describe the results of a nutritional intervention programme among Japanese-Brazilians according to gender. Design: A non-controlled experimental study. Setting: The research included three points of clinical, nutritional and physical activity evaluation: at baseline (in 2005), after the first year and at the end of the second year (in 2007). The paired Student t test and multiple linear regression analysis were used to evaluate changes in the subjects` profile (clinical, nutritional and physical activity variables). Subjects: Japanese-Brazilians (n 575) of both genders, aged over 30 years. Results: We verified statistically significant reductions in body weight (0.9 kg), waist circumference (2.9 cm), blood pressure, fasting blood glucose (>3 mg/dl) and total cholesterol (>20 mg/dl) and its fractions, in both genders. We also found reductions in intake of energy (among men), protein (among women) and fat (both genders) and increases in intake of total fibre (among women) and carbohydrate (among men). Conclusions: The intervention programme indicated meaningful benefits for the intervention subjects, with changes in their habits that led to a `healthier` lifestyle positively impacting their nutritional and metabolic profile.; Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)[2005/59178-7]; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)[505845/2004-0]

‣ Avaliação do estado nutricional e hábito alimentar de pacientes com síndrome coronariana aguda do projeto ERICO; Assessment of nutritional status and dietary habits of patients with acute coronary syndrome of ERICO study

Naud, Ludmila Macêdo
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 28/07/2014 Português
Relevância na Pesquisa
381.96367%
O presente estudo teve como objetivo descrever a dieta e o estado nutricional de uma população com síndrome coronariana aguda no Projeto Estratégia de Registro da Insuficiência Coronariana (Projeto ERICO) na unidade de emergência do Hospital Universitário da Universidade de São Paulo e estimar o número de óbitos em decorrência de doenças cardiovasculares em um ano de acompanhamento desses pacientes. Foram selecionados 290 pacientes de uma população de 841 indivíduos com diagnóstico de síndrome coronariana aguda. Foram avaliados dados demográficos, IMC e variáveis de nutrição a partir de um Questionário de Frequência Alimentar previamente validado e posterior análise do Índice de Qualidade da Dieta Revisado. As variáveis de nutrição utilizadas foram valor calórico total, carboidrato, proteína, lipídeo, ácidos graxos polinsaturados, ácidos graxos monoinsaturados, ácidos graxos saturados, ácidos graxos trans, ácidos graxos linolênico, ácidos graxos linoléico, colesterol e fibras. O cálculo do valor nutritivo dos alimentos consumidos e registrados foi realizado utilizando o programa Virtual Nutri com banco de dados de alimentos da tabela de composição química da United States Departement of Agriculture. Com exceção do colesterol e fibras...

‣ Triagem nutricional em adultos hospitalizados; Nutritional screening in inpatients

Beghetto, Mariur Gomes; Manna, Bibiana Borges; Candal, Andréia; Mello, Elza Daniel de; Polanczyk, Carisi Anne
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
Relevância na Pesquisa
480.52254%
Em hospitais, o objetivo de um procedimento de triagem nutricional é identificar indivíduos desnutridos ou em risco de desnutrição, possibilitando intervenção nutricional precoce e melhor alocação de recursos. Diferentes métodos são apresentados na literatura para esta finalidade: Malnutrition Screening Tool, Short Nutritional Assessment Questionnaire, Nutritional Risk Index, Nutrition Risk Score, Nutritional Risk Screening, Mini Nutritional Assessment, Malnutrition Universal Screening Tool, Nutritional Screening Tool, Nutritional Screening Equation. No entanto, o emprego de muitos destes instrumentos está limitado pela inadequada metodologia empregada na derivação e/ou validação, pela seleção de grupos específicos de pacientes, pela pouca praticidade ou por necessidade de um especialista para seu emprego. Na ausência de um padrão de referência para emitir o diagnóstico nutricional, desfechos clínicos relevantes devem balizar a derivação e a validação de novos instrumentos. Este trabalho descreve os instrumentos de triagem nutricional acima referidos e apresenta considerações quanto ao seu emprego para adultos hospitalizados não selecionados.; In hospitals, the aim of a nutritional screening procedure is to identify malnourished individuals or those at risk of malnutrition...

‣ Assessment of the usability of a nutritional epidemiology computerized system

Ruggeri,Bruna Furer Ferri; Voci,Silvia Maria; Borges,Camila Aparecida; Slater,Betzabeth
Fonte: Associação Brasileira de Saúde Coletiva Publicador: Associação Brasileira de Saúde Coletiva
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2013 Português
Relevância na Pesquisa
476.15176%
INTRODUCTION: Epidemiological research has been adhering to new technologies, such as computer systems, and using the Internet as a tool. Usability is a characteristic of a specific product concerning the facility to use it, its speed and the facility to learn how to use it. It should also not present errors, or these must be easy to solve, in case they occur, thus providing high satisfaction to users. OBJECTIVE: To evaluate the usability of the "System of health and nutrition monitoring - nutrition of school children" (NUTRISIM). METHODS: A sample of 17 Information Technology professionals evaluated the system and answered the "Questionnaire for System Usability", which determines the level of usability of systems by the Fuzzy Logic. The questionnaire contains 30 questions, which are divided into six metrics. The usability of the system determines six usability criteria in a large Fuzzy scale. RESULTS: With the exception of the metric "error control", all metrics were analyzed as "very good". The metrics "error control", "efficiency" and "satisfaction" presented medium amplitude, which is a better result in relation to the metrics "easy to learn", "easy to remember" and "effectiveness", which was assessed as "high". CONCLUSION: The study showed that the system is easy to be learned and used...

‣ Structured measurement error in nutritional epidemiology: applications in the Pregnancy, Infection, and Nutrition (PIN) Study

Johnson, Brent A.; Herring, Amy H.; Ibrahim, Joseph G.; Siega-Riz, Anna Maria
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em //2007 Português
Relevância na Pesquisa
481.42508%
Preterm birth, defined as delivery before 37 completed weeks’ gestation, is a leading cause of infant morbidity and mortality. Identifying factors related to preterm delivery is an important goal of public health professionals who wish to identify etiologic pathways to target for prevention. Validation studies are often conducted in nutritional epidemiology in order to study measurement error in instruments that are generally less invasive or less expensive than ”gold standard” instruments. Data from such studies are then used in adjusting estimates based on the full study sample. However, measurement error in nutritional epidemiology has recently been shown to be complicated by correlated error structures in the study-wide and validation instruments. Investigators of a study of preterm birth and dietary intake designed a validation study to assess measurement error in a food frequency questionnaire (FFQ) administered during pregnancy and with the secondary goal of assessing whether a single administration of the FFQ could be used to describe intake over the relatively short pregnancy period, in which energy intake typically increases. Here, we describe a likelihood-based method via Markov Chain Monte Carlo to estimate the regression coefficients in a generalized linear model relating preterm birth to covariates...

‣ Food label use and awareness of nutritional information and recommendations among persons with chronic disease123

Lewis, John E; Arheart, Kristopher L; LeBlanc, William G; Fleming, Lora E; Lee, David J; Davila, Evelyn P; Cabán-Martinez, Alberto J; Dietz, Noella A; McCollister, Kathryn E; Bandiera, Frank C; Clark, John D
Fonte: American Society for Nutrition Publicador: American Society for Nutrition
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
467.15652%
Background: Because of the relation between chronic disease and poor nutritional habits, the use of food labels and adherence to dietary recommendations are important for chronic disease populations. We explored whether persons with chronic disease read nutrient information on food labels and whether they were aware of dietary guidelines.

‣ Risk Assessment to Underpin Food Regulatory Decisions: An Example of Public Health Nutritional Epidemiology

Baines, Janis; Cunningham, Judy; Leemhuis, Christel; Hambridge, Tracy; Mackerras, Dorothy
Fonte: MDPI Publicador: MDPI
Tipo: Artigo de Revista Científica
Publicado em 20/01/2011 Português
Relevância na Pesquisa
476.52027%
The approach used by food regulation agencies to examine the literature and forecast the impact of possible food regulations has many similar features to the approach used in nutritional epidemiological research. We outline the Risk Analysis Framework described by FAO/WHO, in which there is formal progression from identification of the nutrient or food chemical of interest, through to describing its effect on health and then assessing whether there is a risk to the population based on dietary exposure estimates. We then discuss some important considerations for the dietary modeling component of the Framework, including several methodological issues that also exist in research nutritional epidemiology. Finally, we give several case studies that illustrate how the different methodological components are used together to inform decisions about how to manage the regulatory problem.

‣ Measurement error modeling and nutritional epidemiology association analyses

PRENTICE, Ross L.; HUANG, Ying
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Português
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This paper summarizes the results of a Nutrient Biomarker Study in the Women’s Health Initiative, and its application to studies of the association between energy and protein consumption and the risk of major cancers and cardiovascular diseases. The presentation emphasizes measurement error modeling and related data analysis methods, since addressing measurement issues appears to be central to these topics and to progress in nutritional epidemiology more generally. The manner in which body mass index is modeled in disease association analysis is particularly challenging, since it could serve as a mediator or as a confounder of the association, and at the same time contributes valuably to energy and protein consumption assessment. A hazard ratio parameter estimation procedure that acknowledges body mass index as a possible mediating variable is described and applied. Some aspects of the future nutritional epidemiology research agenda are briefly discussed, including an ongoing human feeding study to develop biomarkers for additional dietary components.

‣ Mendelian randomization in nutritional epidemiology

Qi, Lu
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /08/2009 Português
Relevância na Pesquisa
487.68855%
Nutritional epidemiology aims to identify dietary and lifestyle causes for human diseases. Causality inference in nutritional epidemiology is largely based on evidence from studies of observational design, and may be distorted by unmeasured or residual confounding and reverse causation. Mendelian randomization is a recently developed methodology that combines genetic and classical epidemiological analysis to infer causality for environmental exposures, based on the principle of Mendel’s law of independent assortment. Mendelian randomization uses genetic variants as proxiesforenvironmentalexposuresofinterest.AssociationsderivedfromMendelian randomization analysis are less likely to be affected by confounding and reverse causation. During the past 5 years, a body of studies examined the causal effects of diet/lifestyle factors and biomarkers on a variety of diseases. The Mendelian randomization approach also holds considerable promise in the study of intrauterine influences on offspring health outcomes. However, the application of Mendelian randomization in nutritional epidemiology has some limitations.

‣ Using surrogate biomarkers to improve measurement error models in nutritional epidemiology

Keogh, Ruth H; White, Ian R; Rodwell, Sheila A
Fonte: Blackwell Publishing Ltd Publicador: Blackwell Publishing Ltd
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
471.24695%
Nutritional epidemiology relies largely on self-reported measures of dietary intake, errors in which give biased estimated diet–disease associations. Self-reported measurements come from questionnaires and food records. Unbiased biomarkers are scarce; however, surrogate biomarkers, which are correlated with intake but not unbiased, can also be useful. It is important to quantify and correct for the effects of measurement error on diet–disease associations. Challenges arise because there is no gold standard, and errors in self-reported measurements are correlated with true intake and each other. We describe an extended model for error in questionnaire, food record, and surrogate biomarker measurements. The focus is on estimating the degree of bias in estimated diet–disease associations due to measurement error. In particular, we propose using sensitivity analyses to assess the impact of changes in values of model parameters which are usually assumed fixed. The methods are motivated by and applied to measures of fruit and vegetable intake from questionnaires, 7-day diet diaries, and surrogate biomarker (plasma vitamin C) from over 25000 participants in the Norfolk cohort of the European Prospective Investigation into Cancer and Nutrition. Our results show that the estimated effects of error in self-reported measurements are highly sensitive to model assumptions...

‣ Calibration Of Self-Reported Dietary Measures Using Biomarkers: An Approach To Enhancing Nutritional Epidemiology Reliability

Prentice, Ross L.; Tinker, Lesley F.; Huang, Ying; Neuhouser, Marian L.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /09/2013 Português
Relevância na Pesquisa
484.6702%
Reports from nutritional epidemiology studies lack reliability if based solely on self-reported dietary consumption estimates. Consumption biomarkers are available for some components of diet. These can be collected in subsets of study cohorts, along with corresponding self-report assessments. Linear regression of (log-transformed) biomarker values on corresponding self-report values and other pertinent study subject characteristics yields calibration equations for dietary consumption, from which calibrated consumption estimates can be calculated throughout study cohorts. Nutritional epidemiology disease association studies of enhanced reliability can be expected from analyses that relate disease risk to calibrated consumption estimates. Applications to the study of energy and protein consumption in relation to cardiovascular diseases, type 2 diabetes, and cancer in the Women’s Health Initiative will be briefly summarized. Also, challenges related to variables that may either mediate or confound associations of interest will be described, along with the need for longitudinal biomarker and self-report data, and the need for additional nutritional biomarkers development.

‣ Nutritional status survey of children with autism and typically developing children aged 4–6 years in Heilongjiang Province, China

Sun, Caihong; Xia, Wei; Zhao, Yan; Li, Nannan; Zhao, Dong; Wu, Lijie
Fonte: Cambridge University Press Publicador: Cambridge University Press
Tipo: Artigo de Revista Científica
Publicado em 29/04/2013 Português
Relevância na Pesquisa
475.38805%
Autism is a neurodevelopmental disability that may affect nutritional management of children with autism. This study aimed to compare the nutritional status of children with autism with that of typically developing children (aged 4–6 years) in China. Nutritional status was assessed by means of nutritional data, anthropometric data, biochemical assessment, physical examination for nutrient deficiencies and providing a questionnaire to parents. A total of fifty-three children with autism and fifty-three typically developing children were enrolled in this study. The parents were asked to complete the questionnaire regarding the eating behaviour and gastrointestinal symptoms of their children. They were also asked to provide a 3 d food diary. Children with autism exhibited several abnormalities in terms of eating behaviour and gastrointestinal symptoms. The levels of vitamins A and B6, Zn and Ca intakes were <80 % of the dietary reference intakes in both groups. In addition, the proportions of vitamin C and Ca intake deficiencies in the autism group were significantly higher than those in the control group. Serum Zn level was less than the normal reference range in both the groups. Serum Ca, vitamin A and folate levels in children with autism were significantly lower when compared with children without autism. According to the anthropometric data...

‣ A toolkit for measurement error correction, with a focus on nutritional epidemiology

Keogh, Ruth H; White, Ian R
Fonte: BlackWell Publishing Ltd Publicador: BlackWell Publishing Ltd
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
471.24695%
Exposure measurement error is a problem in many epidemiological studies, including those using biomarkers and measures of dietary intake. Measurement error typically results in biased estimates of exposure-disease associations, the severity and nature of the bias depending on the form of the error. To correct for the effects of measurement error, information additional to the main study data is required. Ideally, this is a validation sample in which the true exposure is observed. However, in many situations, it is not feasible to observe the true exposure, but there may be available one or more repeated exposure measurements, for example, blood pressure or dietary intake recorded at two time points. The aim of this paper is to provide a toolkit for measurement error correction using repeated measurements. We bring together methods covering classical measurement error and several departures from classical error: systematic, heteroscedastic and differential error. The correction methods considered are regression calibration, which is already widely used in the classical error setting, and moment reconstruction and multiple imputation, which are newer approaches with the ability to handle differential error. We emphasize practical application of the methods in nutritional epidemiology and other fields. We primarily consider continuous exposures in the exposure-outcome model...

‣ Ultra-processed foods and the nutritional dietary profile in Brazil

Louzada,Maria Laura da Costa; Martins,Ana Paula Bortoletto; Canella,Daniela Silva; Baraldi,Larissa Galastri; Levy,Renata Bertazzi; Claro,Rafael Moreira; Moubarac,Jean-Claude; Cannon,Geoffrey; Monteiro,Carlos Augusto
Fonte: Faculdade de Saúde Pública da Universidade de São Paulo Publicador: Faculdade de Saúde Pública da Universidade de São Paulo
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2015 Português
Relevância na Pesquisa
474.18758%
OBJECTIVE To assess the impact of consuming ultra-processed foods on the nutritional dietary profile in Brazil.METHODS Cross-sectional study conducted with data from the module on individual food consumption from the 2008-2009 Pesquisa de Orçamentos Familiares (POF – Brazilian Family Budgets Survey). The sample, which represented the section of the Brazilian population aged 10 years or over, involved 32,898 individuals. Food consumption was evaluated by two 24-hour food records. The consumed food items were classified into three groups: natural or minimally processed, including culinary preparations with these foods used as a base; processed; and ultra-processed.RESULTS The average daily energy consumption per capita was 1,866 kcal, with 69.5% being provided by natural or minimally processed foods, 9.0% by processed foods and 21.5% by ultra-processed food. The nutritional profile of the fraction of ultra-processed food consumption showed higher energy density, higher overall fat content, higher saturated and trans fat, higher levels of free sugar and less fiber, protein, sodium and potassium, when compared to the fraction of consumption related to natural or minimally processed foods. Ultra-processed foods presented generally unfavorable characteristics when compared to processed foods. Greater inclusion of ultra-processed foods in the diet resulted in a general deterioration in the dietary nutritional profile. The indicators of the nutritional dietary profile of Brazilians who consumed less ultra-processed foods...

‣ Survey of state health agencies' staff who practice the epidemiology of noninfectious diseases and conditions.

Boss, L P; Foster, L R
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em //1994 Português
Relevância na Pesquisa
386.8532%
The primary causes of mortality in the United States are noninfectious diseases and conditions. Epidemiologic and intervention activities related to most of these diseases and conditions have increased in most State health agencies over the past decade. Because little was known of the practice of noninfectious disease epidemiology in State health agencies, a mail survey was undertaken in 1991. Persons working in State health agencies who responded to the survey had a graduate degree in epidemiology, biostatistics, or related fields and actively participated in the epidemiology of noninfectious diseases or conditions. Respondents were from 48 States, predominantly male (56 percent) and white (92 percent). On an average, respondents spent roughly half of their time actually doing epidemiology. The focus of noninfectious disease epidemiology has been categorized by risk factors (environment, occupation, nutrition, tobacco, and substance abuse), diseases (diabetes, cancer, and cardiovascular disease), and health conditions (injury, birth defects, and other reproductive conditions). The percentage of respondents who reported epidemiologic activity in any risk factor, disease, or condition varied from 55 percent for environmental epidemiology to 9 percent in nutritional epidemiology. Respondents from 41 States reported activity in environmental epidemiology...

‣ Dietary energy density and its association with the nutritional quality of the diet of children and teenagers

O'Connor, Laura; Walton, Janette; Flynn, Albert
Fonte: Cambridge University Press Publicador: Cambridge University Press
Tipo: Artigo de Revista Científica
Publicado em 15/04/2013 Português
Relevância na Pesquisa
472.59992%
To examine the relationship between dietary energy density (DED) and the nutritional quality of the diet, using data from the Irish National Children's Food Survey (NCFS) and the National Teens' Food Survey (NTFS), two cross-sectional studies of food consumption were carried out between 2003 and 2006. Data from the NCFS and NTFS were used to examine the intakes of nutrients and foods among those with low- (NCFS <7·56, NTFS <7·65 kJ/g), medium- (NCFS 7·56–8·75, NTFS 7·66–8·85 kJ/g) and high-energy-dense diets (NCFS >8·75, NTFS >8·85 kJ/g). A 7-d food diary was used to collect food intake data from children (n 594) and teenagers (n 441). DED (kJ/g) was calculated including food alone and excluding beverages. Participants with lower DED consumed more food (weight) but not more energy. They also consumed less fat and added sugars and more protein, carbohydrates, starch and dietary fibre and had higher intakes of micronutrients. Participants with lower DED had food intake patterns that adhered more closely to food-based dietary guidelines. Low DED was associated with multiple individual indicators of a better nutritional quality of the diet, including higher intakes of dietary fibre and micronutrients and a generally better balance of macronutrients...

‣ Regression Calibration in Nutritional Epidemiology: Example of Fat Density and Total Energy in Relationship to Postmenopausal Breast Cancer

Prentice, Ross L.; Pettinger, Mary; Tinker, Lesley F.; Huang, Ying; Thomson, Cynthia A.; Johnson, Karen C.; Beasley, Jeannette; Anderson, Garnet; Shikany, James M.; Chlebowski, Rowan T.; Neuhouser, Marian L.
Fonte: Oxford University Press Publicador: Oxford University Press
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
576.15176%
Regression calibration using biomarkers provides an attractive approach to strengthening nutritional epidemiology. We consider this approach to assessing the relationship of fat and total energy consumption with postmenopausal breast cancer. In analyses that included fat density data, biomarker-calibrated total energy was positively associated with postmenopausal breast cancer incidence in cohorts of the US Women's Health Initiative from 1994–2010. The estimated hazard ratio for a 20% increment in calibrated food frequency questionnaire (FFQ) energy was 1.22 (95% confidence interval (CI): 1.15, 1.30). This association was not evident without biomarker calibration, and it ceased to be apparent following control for body mass index (weight (kg)/height (m)2), suggesting that the association is mediated by body fat deposition over time. The hazard ratio for a corresponding 40% increment in FFQ fat density was 1.05 (95% CI: 1.00, 1.09). A stronger fat density association, with a hazard ratio of 1.19 (95% CI: 1.00, 1.41), emerged from analyses that used 4-day food records for dietary assessment. FFQ-based analyses were also carried out by using a second dietary assessment in place of the biomarker for calibration. This type of calibration did not correct for systematic bias in energy assessment...

‣ Methodological Challenges in the Application of the Glycemic Index in Epidemiological Studies Using Data from the European Prospective Investigation into Cancer and Nutrition1–3

van Bakel, Marit M. E.; Slimani, Nadia; Feskens, Edith J. M.; Du, Huaidong; Beulens, Joline W. J.; van der Schouw, Yvonne T.; Brighenti, Furio; Halkjaer, Jytte; Cust, Anne E.; Ferrari, Pietro; Brand-Miller, Jennie; Bueno-de-Mesquita, H. Bas; Peeters, Petr
Fonte: American Society for Nutrition Publicador: American Society for Nutrition
Tipo: Artigo de Revista Científica
Publicado em /03/2009 Português
Relevância na Pesquisa
471.24695%
Associations between the glycemic index (GI) or glycemic load (GL) and diseases are heterogeneous in epidemiological studies. Differences in assigning GI values to food items may contribute to this inconsistency. Our objective was to address methodological issues related to the use of current GI and GL values in epidemiological studies. We performed ecological comparison and correlation studies by calculating dietary GI and GL from country-specific dietary questionnaires (DQ) from 422,837 participants from 9 countries participating in the European Prospective Investigation into Cancer and Nutrition study and single standardized 24-h dietary recalls (24-HDR) obtained from a representative sample (n = 33,404) using mainly Foster Powell's international table as a reference source. Further, 2 inter-rater and 1 inter-method comparison were conducted, comparing DQ GI values assigned by independent groups with values linked by us. The ecological correlation between DQ and 24-HDR was good for GL (overall r = 0.76; P < 0.005) and moderate for GI (r = 0.57; P < 0.05). Mean GI/GL differences between DQ and 24-HDR were significant for most centers. GL but not GI from DQ was highly correlated with total carbohydrate (r = 0.98 and 0.15, respectively; P < 0.0001) and this was higher for starch (r = 0.72; P < 0.0001) than for sugars (r = 0.36; P < 0.0001). The inter-rater and inter-method variations were considerable for GI (weighted κ coefficients of 0.49 and 0.65 for inter-rater and 0.25 for inter-method variation...

‣ Assessment of the usability of a nutritional epidemiology computerized system

Ruggeri,Bruna Furer Ferri; Voci,Silvia Maria; Borges,Camila Aparecida; Slater,Betzabeth
Fonte: Associação Brasileira de Pós -Graduação em Saúde Coletiva Publicador: Associação Brasileira de Pós -Graduação em Saúde Coletiva
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2013 Português
Relevância na Pesquisa
476.15176%
INTRODUCTION: Epidemiological research has been adhering to new technologies, such as computer systems, and using the Internet as a tool. Usability is a characteristic of a specific product concerning the facility to use it, its speed and the facility to learn how to use it. It should also not present errors, or these must be easy to solve, in case they occur, thus providing high satisfaction to users. OBJECTIVE: To evaluate the usability of the "System of health and nutrition monitoring - nutrition of school children" (NUTRISIM). METHODS: A sample of 17 Information Technology professionals evaluated the system and answered the "Questionnaire for System Usability", which determines the level of usability of systems by the Fuzzy Logic. The questionnaire contains 30 questions, which are divided into six metrics. The usability of the system determines six usability criteria in a large Fuzzy scale. RESULTS: With the exception of the metric "error control", all metrics were analyzed as "very good". The metrics "error control", "efficiency" and "satisfaction" presented medium amplitude, which is a better result in relation to the metrics "easy to learn", "easy to remember" and "effectiveness", which was assessed as "high". CONCLUSION: The study showed that the system is easy to be learned and used...

‣ Ultra-processed foods and the nutritional dietary profile in Brazil

Louzada,Maria Laura da Costa; Martins,Ana Paula Bortoletto; Canella,Daniela Silva; Baraldi,Larissa Galastri; Levy,Renata Bertazzi; Claro,Rafael Moreira; Moubarac,Jean-Claude; Cannon,Geoffrey; Monteiro,Carlos Augusto
Fonte: Faculdade de Saúde Pública da Universidade de São Paulo Publicador: Faculdade de Saúde Pública da Universidade de São Paulo
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2015 Português
Relevância na Pesquisa
474.18758%
OBJECTIVE To assess the impact of consuming ultra-processed foods on the nutritional dietary profile in Brazil.METHODS Cross-sectional study conducted with data from the module on individual food consumption from the 2008-2009 Pesquisa de Orçamentos Familiares (POF – Brazilian Family Budgets Survey). The sample, which represented the section of the Brazilian population aged 10 years or over, involved 32,898 individuals. Food consumption was evaluated by two 24-hour food records. The consumed food items were classified into three groups: natural or minimally processed, including culinary preparations with these foods used as a base; processed; and ultra-processed.RESULTS The average daily energy consumption per capita was 1,866 kcal, with 69.5% being provided by natural or minimally processed foods, 9.0% by processed foods and 21.5% by ultra-processed food. The nutritional profile of the fraction of ultra-processed food consumption showed higher energy density, higher overall fat content, higher saturated and trans fat, higher levels of free sugar and less fiber, protein, sodium and potassium, when compared to the fraction of consumption related to natural or minimally processed foods. Ultra-processed foods presented generally unfavorable characteristics when compared to processed foods. Greater inclusion of ultra-processed foods in the diet resulted in a general deterioration in the dietary nutritional profile. The indicators of the nutritional dietary profile of Brazilians who consumed less ultra-processed foods...