The relationship between test anxiety and academic performance among undergraduate medical students

Background: Undergraduate medical education comprises strenuous study and training for five and half years. Mental health of medical students remains affected throughout this period. Objective: To assess the test anxiety in the undergraduate medical students and to find out the relationship between the test anxiety and academic performance in the students. Methods: This cross-sectional study was conducted in a Rural BPS Government Medical College for Women, Khanpur Kalan, Sonepat. The study population included all the undergraduate medical students enrolled from 2012 to 2016. Data pertaining to various socio-demographic characteristics were obtained by interview technique using a pre-designed, pre-tested questionnaire ensuring privacy and confidentiality and reviewing academic records. Nist and Diehl test anxiety questionnaire was used to determine the anxiety score of students. Statistical analyses were carried out with R v 3.5.1. Results: A total of 240 students participated in the study. More than one quarter (26.3%) of the students did not suffer from test anxiety, 62.9% students exhibited healthy test anxiety and 10.8% of the students experienced unhealthy test anxiety. In relation to academic performance of the respondents, 4 (12.5%), 47 (24.9%) and 12 (63.2%) of respondents who performed fair, good and excellent respectively had no anxiety level as against those who had healthy anxiety and unhealthy anxiety level and these differences were statistically significant. Conclusions: Text anxiety is significantly associated with academic performance. These findings suggest the need of healthcare provision to prevent unhealthy test anxiety among medical students, as it decreases the academic performance.

Prevalence of anemia and consumption of iron-rich food groups in Mexican children and adolescents: Ensanut MC 2016 / Prevalencia de anemia y consumo de grupos de alimentos en niños y adolescentes mexicanos: Ensanut MC 2016

Abstract: Objective: To describe the prevalence of anemia and consumption of iron rich groups among Mexican children and adolescents who participated in the Halfway National Health and Nutrition Survey, 2016. Materials and methods: Our study sample included children and adolescents who provided full capillary hemoglobin data. Anemia was defined according to WHO criteria. Logistic regression models were used to explore the association among consumption of iron-rich food groups, sociodemographic characteristics and anemia. Results: In 2016, the prevalence of anemia was 26.9% in children aged 1 to 4 years old, 12.5% in those aged 5 to 11, and 9.6% in adolescents aged 12 to 19 years. Rates were the highest among females who lived in the southern and central parts of Mexico, belonged to an indigenous ethnic group and fell within the first tercile of the Household Wealth Index. Consumption of beef by preschoolers and viscera by adolescents was associated with lower risk for anemia; higher risk was associated with consumption of Liconsa milk and non-heme iron by preschoolers. Conclusions: Anemia is highly prevalent in Mexican children and adolescents, affecting mainly the poorest and youngest populations. Sources of heme iron are the principal dietary factor associated with low risk for anemia.

Resumen: Objetivo: Describir la prevalencia de anemia y el consumo de alimentos fuente de hierro en niños y adolescentes mexicanos participantes en la Encuesta Nacional de Salud y Nutrición de Medio Camino 2016. Material y métodos: Se analizó la información de hemoglobina capilar de niños y adolescentes. La anemia se definió con base en el criterio de la OMS. Se usaron modelos de regresión logística para identificar los grupos de alimentos y características de los individuos asociados con anemia. Resultados: La prevalencia de anemia fue de 26.9% en niños de 1 a 4 años; 12.5% en el grupo de 5 a 11 y 9.6% para el de 12 a 19. La mayor prevalencia de anemia se dio entre las mujeres habitantes de la región Sur y Centro, indígenas y en el primer tercil de condición de bienestar. El consumo de carne de res en preescolares y de vísceras en adolescentes se asoció con menor riesgo de anemia. El consumo de leche Liconsa y el hierro no hemo en preescolares se asoció con mayor riesgo de anemia. Conclusiones: La anemia es altamente prevalente en niños y adolescentes mexicanos, afectando principalmente a la población pobre y a los más jóvenes. Las fuentes dietéticas de hierro hemo permanecen como los principales factores dietéticos asociados con menor riesgo de anemia.

Food Security in Acajete, Veracruz / Seguridad alimentaria en Acajete, Veracruz / Segurança alimentar em Acajete, Veracruz / Sécurité alimentaire à Acajete, Veracruz

Abstract Objective: To determine the dietary diversity, the level of food security and its relationship with living conditions in families in Acajete, Veracruz. Materials and methods: Proportional stratified sampling, with 95% confidence, 5% error, and 50% response distribution. Household selection was made randomly, resulting in 211 dwellings as a sample. Results: Marginal food security with 40.3% (n = 85), followed by 32.7% of families with food security (n = 69). Regarding the nutritional status of surveyed people, the mode and median was normal weight (57.7%), overweight and obese 25.5% and underweight 16.8%. 33.6% of the people consume three food groups throughout the day, 27.5% four groups, 15.2% two groups, and the same percentage five food groups. There were significant differences (p=0.039) between the education level of the respondents in relation to their food security status, where 84.2% of the illiterate population has some degree of food insecurity, and 15.8% are in Food security. Conclusions: The housing characteristics considered in this study are not a determinant risk factor for Food Insecurity; no significant differences were found with overcrowding (p=0.239), housing ownership (p=0.987); and an unsafe source of drinking water (p = 0.973). The average scores of the Mexican Food Security Survey (EMSA) were statistically significant, therefore it is observed that lower food diversity results in lower food security. The inhabitants of Acajete who are in low or very low food security, only feed on two food groups: cereals or tubers; and legumes, nuts or seeds. When there is marginal food security add meat or fish.

Resumen Objetivo: Determinar la diversidad alimentaria, el nivel de la seguridad alimentaria y su relación con las condiciones de vida en familias en la localidad de Acajete, Veracruz. Materiales y métodos: Muestreo estratificado proporcional, con una confianza del 95%, un error del 5%, y un 50% de distribución de respuesta. La selección de los hogares se realizó de manera aleatoria, resultando 211 viviendas como muestra. Resultados: Inseguridad alimentaria leve con un 40.3% (n=85), seguido del 32.7% de las familias con seguridad alimentaria (n=69). Respecto al estado nutricio de las personas encuestadas, la moda y mediana fue de normopeso (57.7%), en sobrepeso y obesidad 25.5% y en bajo peso 16.8%. El 33.6% de los encuestados consume tres grupos de alimentos durante todo el día, 27.5% cuatro grupos, 15.2% dos grupos, y con el mismo porcentaje cinco grupos de alimentos. Se encontraron diferencias significativas (p=0.039) entre el nivel de educación de los encuestados en relación con su estado de seguridad alimentaria, donde el 84.2% de la población analfabeta cursa con algún grado de inseguridad alimentaria, y el 15.8% se encuentra en seguridad alimentaria. Conclusiones: Las características de la vivienda que se consideraron en este estudio no son un factor de riesgo determinante para la Inseguridad Alimentaria, no se encontraron diferencias significativas con el hacinamiento (p=0.239), propiedad de la vivienda (p=0.987); y fuente insegura de agua para beber (p=0.973). Los puntajes promedio de la Encuesta Mexicana para la Seguridad Alimentaria resultaron estadísticamente significativos, por consiguiente se observa que una menor diversidad de alimentos resulta en mayor inseguridad alimentaria. Las familias en Inseguridad Alimentaria Moderada o Severa, se alimentan únicamente de dos grupos de alimentos: cereales o tubérculos; y de legumbres. Cuando hay inseguridad alimentaria leve agregan la carne o el pescado.

Resumo Objetivo: Determinar a diversidade alimentar, o nivel de segurança alimentar e sua relação com as condições de vida das familias na cidade de Acajete, Veracruz. Materiais e métodos: Amostragem estratificada proporcional, com uma confiaba de 95%, um erro de 5%, e distribuição de resposta de 50%. A selecção dos agregados foi realizada de forma aleatória, resultando invólucro 211, como mostrado. Resultados: Insegurança aliemtar leve, com 40,3% (n = 85), seguido por 32,7% das familias com seguraba alimentar (n = 69). Com relação ao estado nutricional dos entrevistados, moda e mediana foi de peso normal (57,7%) em sobrepeso e obesidade de 25,5% e 16,8% abaixo do peso. 33,6% dos encuestados consumem três grupos de alimentos ao longo do dia, quatro grupos de 27,5%, 15,2% dois grupos, e a mesma percentagem de cinco grupos de alimentos. Diferenças significativas (p = 0,039) entre o nivel de escolaridade dos entrevistados sobre sua situação de segurança alimentar, onde 84,2% da população analfabeta apresenta com algum grau de insegurançã alimentar foram encontrados, e 15,8% estão em segurança alimentar. Conclusões: As características da habitação que foram considerados neste estudo não são um factor determinante para o risco de segurança alimentar, não há diferenças significativas com a superlotação (p = 0,239), a posse (p = 0,987) que foram encontrados; e a fonte de água não potável (p = 0,973). Os escores médios do Inquérito de Segurança Alimentar mexicano foram estatisticamente significativos, portanto, mostra que menos diversidade de alimentos resulta em maior insegurança alimentar. Familias insegura alimentar moderada ou grave, são alimentados apenas dois grupos de alimentos: cereais ou de tubérculos; e leguminosas. Quando há ligeira insegurança alimentar, eles adicionam carne ou peixe.

Résumé Objectif: Déterminer la diversité et le niveau de sécurité alimentaire, ainsi que leur relation avec les conditions de vie de familles résidant a Acajete, Veracruz. Matériaux et méthode: Échantillonnage stratifié proportionnel, avec un intervalle de confiance de 95%, une marge d'erreur de 5% et 50% de distribution des réponses. La sélection des ménages a été faite au hasard et a donné lieu a un échantillon de 211 logements. Résultats: 40.3% des familles (n=85) ont indiqué une insécurité alimentaire légére et 32.7% (n = 69) une sécurité alimentaire. En ce qui concerne l'état nutritionnel, 57% des personnes interrogées ont présenté un poids normal (valeur du mode et la médiane), 25,5% surpoids ou obésité 25,5% et 16,8% une insuffisance pondérale. 33,6% des personnes interrogées consomment trois groupes alimentaires dans la journée, 27,5% quatre groupes, 15,2% deux groupes, et 15,2% également cinq groupes. Des différences significatives (p = 0,039) de niveau d'éducation ont été trouvées en relation au statut de sécurité alimentaire: 84,2% des analphabétes expérimentent un certain degré d'insécurité alimentaire et 15,8% sont en sécurité alimentaire. Conclusions: Les caractéristiques du logement prises en compte dans cette étude ne sont pas un facteur de risque déterminant d'insécurité alimentaire. Aucune différence significative n'a été observée en fonction du surpeuplement (p = 0,239), de la propriété du logement (p = 0,987); et de l'existence d'une source non fiable d'eau pour boire (p = 0,973). Les valeurs moyennes de la Encuesta Mexicana para la Seguridad Alimentaria (EMSA) se sont révélés statistiquement significatifs ; on a ainsi observé qu'une moindre diversité alimentaire entrame une insécurité alimentaire majeure. Les familles en situation d'insécurité alimentaire modérée ou sévére ne se nourrissent que de deux groupes d'aliments: céréales et tubercules, et légumineuses. Dans les cas d'insécurité alimentaire légére, a cela s'ajoute de la viande ou du poisson.

Effects of lymphocyte DNA damage levels in Korean plant food groups and Korean diet regarding to glutathione S-transferase M1 and T1 polymorphisms / 한국영양학회지

PURPOSE: GST (glutathione S-transferase) M1 and T1 gene polymorphisms are known to affect antioxidant levels. This study was carried out to evaluate genetic susceptibility by measuring the effect of DNA damage reduction in the Korean diet by vegetable food according to GST gene polymorphisms using the ex vivo method with human lymphocytes. METHODS: Vegetable foods in the Korean diet based the results of the KNHANES V-2 (2011) were classified into 10 food groups. A total of 84 foods, which constituted more than 1% of the total intake in each food group, were finally designated as a vegetable food in the Korean diet. The Korean diet applied in this study is the standard one-week meals for Koreans (2,000 Kcal/day) suggested by the 2010 Dietary Reference Intakes for Koreans. Ex vivo DNA damage in human lymphocytes was assessed using comet assay. RESULTS: In the Korean food group, the DNA damage protective effect of GSTM1 and GSTT1 was found to be greater in mutant type and wild-type, respectively. and the DNA damage protective effect according to the combined genotype of GSTM1 and GSTT1 was different depending on the food group. On the other hand, in Korean Diet, the DNA damage protective effect appeared to be larger in GSTM1 wild-type than in mutant type and was found to not be affected by GSTT1 genotype. CONCLUSION: These results can be used as basic data to demonstrate the superiority of the antioxidant function of Korean dietary patterns and food groups. Furthermore, it may be a starting point to begin research on customized antioxidant nutrition according to individual genes.

The relationship between household income and dietary intakes of 1-10 year old urban Malaysian

BACKGROUND/OBJECTIVES: Diet plays an important role in growth and development of children. However, dietary intakes of children living in either rural or urban areas can be influenced by household income. This cross-sectional study examined energy, nutrient and food group intakes of 749 urban children (1-10 years old) by household income status. SUBJECTS/METHODS: Children's dietary intakes were obtained using food recall and record for two days. Diet adequacy was assessed based on recommended intakes of energy and nutrients and food group servings. RESULTS: For toddlers, all nutrients except dietary fiber (5.5 g) exceeded recommended intakes. Among older children (preschoolers and school children), calcium (548 mg, 435 mg) and dietary fiber (7.4 g, 9.4 g) did not meet recommendations while percentage of energy from total fat and saturated fats exceeded 30% and 10%, respectively. The mean sodium intakes of preschoolers (1,684 mg) and school children (2,000 mg) were relatively high. Toddlers in all income groups had similar energy and nutrient intakes and percentages meeting the recommended intakes. However, low income older children had lowest intakes of energy (P < 0.05) and most nutrients (P < 0.05) and highest proportions that did not meet recommended energy and nutrient intakes. For all food groups, except milk and dairy products, all age groups had mean intakes below the recommended servings. Compared to middle and high income groups, low income preschoolers had the lowest mean intake of fruits (0.07 serving), meat/poultry (0.78 serving) and milk/dairy products (1.14 serving) while low income toddlers and school children had the least mean intake of fruits (0.09 serving) and milk/dairy products (0.54 serving), respectively. CONCLUSION: Low socioeconomic status, as indicated by low household income, could limit access to adequate diets, particularly for older children. Parents and caregivers may need dietary guidance to ensure adequate quantity and quality of home food supply and foster healthy eating habits in children.

The food pyramid adapted to physically active adolescents as a nutrition education tool / A pirâmide alimentar adaptada para adolescentes fisicamente ativos como ferramenta de educação nutricional / La pirámide alimentar adaptada para adolescentes físicamente activos como herramienta de educación en nutrición

This study aimed to assess the understanding of the Food Pyramid Adapted to Physically Active Adolescents as an educational tool to improve nutrition knowledge. Adolescents engaged in sport training responded to a nutrition knowledge questionnaire before and after the intervention. The pyramid intervention group received the printed educational material, and the broad intervention group received the printed material followed by a lecture. As a result, mean initial nutrition knowledge was average (59.9 ± 18 points), increasing (p<0.001) after the intervention (69.1 ± 20 points) without significant difference between interventions. In conclusion, adolescents' nutrition knowledge improved, even with the use of the Food Pyramid alone, indicating its use to promote nutritional knowledge.

O estudo avaliou a compreensão da Pirâmide Alimentar Adaptada para Adolescentes Fisicamente Ativos como ferramenta educacional para melhorar o conhecimento em nutrição. Adolescentes que treinam um esporte responderam questionário de conhecimento em nutrição antes e depois da intervenção. O grupo de intervenção pirâmide recebeu o material educacional impresso e o grupo intervenção ampla recebeu o material impresso seguido de palestra. O conhecimento nutricional inicial foi mediano (59,9 ± 18 pontos), com aumento (p <0,001) após a intervenção (69,1 ± 20 pontos), sem diferença significativa por tipo de intervenção. O conhecimento de adolescentes em nutrição melhorou, mesmo com o uso da Pirâmide Alimentar sozinha, indicando seu uso para promover o conhecimento nutricional.

Lo estudio evaluó la comprensión de la pirámide de alimentos adaptado a los adolescentes físicamente activos como una herramienta educativa para mejorar el conocimiento de la nutrición. Los adolescentes que participan en el entrenamiento deportivo respondió a un cuestionario de conocimientos sobre nutrición antes y después de la intervención. El grupo de intervención la pirámide recibió material educativo impreso, y la intervención amplia recibió el material impreso seguido por una conferencia. Como resultados, la media de conocimientos sobre nutrición inicial era (59,9 ± 18 puntos), con aumento (p <0,001) después de la intervención (69,1 ± 20 puntos), sin diferencia significativa entre las intervenciones. El conocimiento de Adolescentes sobre nutrición foie mejorada, incluso con el uso de la pirámide de alimentos solo, lo que indica su uso para promover el conocimiento nutricional.

Relación de la ingesta de grupos de alimentos con la proteína C-reactiva en adultos sanos en la ciudad de Mexicali, Baja California, México / Relationship of food groups intake and C-reactive protein in healthy adults from Mexicali, Baja California, México

La proteína C-reactiva ultrasensible (PCR-us) es un biomarcador importante en procesos inflamatorios. El objetivo del estudio fue examinar la relación entre la concentración de la PCR-us de adultos aparentemente sanos, con su patrón alimentario característico del norte de México. A una muestra de 72 profesores universitarios se les realizó una valoración clínica y antropométrica y se les cuantificó la PCR-us con un ensayo inmunoenzimométrico (EIA). Los profesores además contestaron un cuestionario de frecuencia de consumo de alimentos, del cual se estimaron las raciones de grupos de alimentos con el programa ESHA. La edad promedio de los participantes fue 49,75 ±10,05 años y la concentración de PCR-us tuvo un promedio de 1,66 (0,97 a 3,52) mg/L. La magnitud de la asociación entre el consumo de frutas y el nivel de PCR-us fue protectora de acuerdo con el análisis de regresión logística cuya Razón de Momios (RM) fue de 0,23 (95% IC: 0,05 a 1,03), mientras que para los vegetales la RM fue de 0,66 (95% IC: 0,12 a 3,68). Por otro lado, los alimentos proteicos, lácteos, aceites y grasas se asociaron con niveles elevados de la PCR-us. En conclusión, la menor concentración de la PCR-us se asoció con la mayor ingesta de los grupos de frutas y vegetales, y en menor grado con los cereales.

The high sensitivity C-reactive protein (hs-CRP) is an important biomarker in inflammatory processes. The objective was to analyze the relationship between the concentrations of hs-CRP in adults from a northern Mexico region with their typical food intake patterns. A sample of 72 university professors underwent clinical and anthropometric assessments and their hs-CRP levels were quantified with an immunoenzymometric assay. Additionally, they filled out a food intake frequency questionnaire, from which the servings of different food groups were obtained with the ESHA software. The average age of participants was 49.75 ± 10.05 years and the average hs-CRP concentration was 1.66 (0.97, 3.52) mg/L. The value of the association between fruit consumption and hs-CRP level was protective, according to the logistic regression analysis, being the Odds Ratio (OR) 0.23 (95% CI: 0.05, 1.03); while for vegetables the OR was 0.66 (95% CI: 0.12, 3.68). Furthermore, high protein content foods, dairy products, oils and fats were associated with elevated levels of hs-CRP. In conclusion, in our study, the intake of some food groups like fruits and vegetables, and to a lesser extent cereals, were associated with low values of hs-PCR.

Grupos de alimentos para investigação de risco para diabetes tipo 2 e doenças associadas / Food Groups for the investigation of risk of type 2 diabetes and associated diseases

INTRODUÇÃO: Os grupos de alimentos convencionalmente empregados em atividades de orientação nutricional foram estabelecidos de acordo com o seu teor de macronutrientes. Entretanto, não contemplam as evidências científicas recentes da associação entre consumo alimentar e risco de desenvolvimento de doenças crônicas não transmissíveis. OBJETIVO: Elaborar uma proposta de agrupamento de alimentos para a investigação da associação entre consumo alimentar e risco de desenvolvimento de diabetes tipo 2 e doenças associadas, em Nipo-Brasileiros. MÉTODOS: Análise transversal dos dados da linha de base de um estudo de intervenção no estilo de vida conduzido entre Nipo-Brasileiros de Bauru, SP, entre 2005 e 2007. A avaliação do consumo alimentar deu-se por meio da análise de três inquéritos recordatórios de 24 horas em 640 indivíduos, ambos os sexos, idade entre 30 e 88 anos. RESULTADOS: Foram propostos 18 novos grupos de alimentos considerando-se o teor e qualidade das gorduras e carboidratos, sódio e fibras CONCLUSÃO: Os novos grupos de alimentos incorporam evidências recentes da associação entre dieta e desenvolvimento de diabetes tipo 2.

INTRODUCTION: The food groups conventionally applied in activities of nutritional counseling were established according to their macronutrient content. However, it does not consider recent scientific evidences of the association between food consumption and risk of developing non-communicable chronic diseases. OBJECTIVE: To propose food groups for the investigation of the association between food consumption and risk of developing type 2 diabetes and associated diseases among Japanese-Brazilians. METHODS: Cross-sectional analysis of baseline data of a lifestyle intervention study conducted among Japanese-Brazilians of Bauru, SP, Brazil, from 2005 to 2007. Food intake was assessed by three 24-hour recalls of 640 participants, both genders, aged 30 to 88 years old. RESULTS: Eighteen new food groups were proposed according to their quantity and quality of fat, carbohydrates, sodium, and fiber. CONCLUSION: The new food groups incorporate recent evidences of the association between diet and the risk of developing type 2 diabetes.

Patrones y hábitos alimentarios: reflejo de lo que comen los jóvenes ucevistas / Patterns and eating habits: reflection of what young people eat ucevistas

Esta investigación se realizó para determinar los patrones y hábitos alimentarios, de 152 estudiantes de la Universidad Central de Venezuela, 99 mujeres y 53 hombres, con una edad promedio de 20,28 ± 3,09 años. Se aplicó un cuestionario de frecuencia del consumo de alimentos para determinar las preferencias alimentarias, con registro de información de dos días, incluyendo un día de fin de semana. Los resultados indican que estos jóvenes, sin distingo de género, incluyen en su alimentación productos de cada grupo de alimentos. Reportaron: preferencia por el consumo de comida rápida (hamburguesas, cachitos, pastelitos y pizza); consumo de agua superior a dos vasos diarios; baja ingesta de café en los hombres; mayor consumo de bebidas alcohólicas entre los hombres; el consumo de frutas en general es a través de jugos y mayoritariamente en las mujeres. Los alimentos integrales tienen aceptación en estos jóvenes, especialmente en las mujeres. Se evidenció preferencia por preparaciones de alimentos fritos, más frecuente en las mujeres

This investigation was made to determine the nourished patterns and habits of 152 students of the Universidad Central de Venezuela, 99 women and 53 men, with an average age of 20.28 ± 3.09 years old. A questionnaire of food consumption frequency was applied to determine food preferences, with registry information of two days, including a of weekend day. Results indicated that these young people, without distinction of gender, included in their feeding products of each food group. Results reported: preference in consumption of snack food (hamburgers, small pieces, cupcakes and pizzas); water consumption superior to two daily glasses; low ingestion of coffee in men; greater consumption of alcoholic drinks among men. The consumption of fruits in general is through juice and mainly in women. Whole foods have acceptance in these young people, especially in women. It was demonstrated preference by fried food preparations, more frequently in women

Evaluation of Dietary Intake of Korean School-aged Children from Low-income Families by Comparing with the Korean Food Guide: Analysis of the Data from the 2001 National Health and Nutrition Survey

This study was conducted to evaluate the dietary quality of school-aged children from low-income families in comparison with those from higher income families. The socio-demographic and anthropometric data and one day 24-hour recall dietary intake data of 1,782 school-aged children were used for analysis from the data of 2001 National Health and Nutrition Survey. The children whose family had monthly household income 120% or lower than the 2001 Minimum Cost of Living were classified into Low Income Group (LIG), and the others were classified into Higher Income Group (HIG). The consumption levels of the food groups of the Korean Food Guide as well as the general nutritional status based on their weight and height, energy and nutrient intake were compared between LIG and HIG in elementary (n = 989), middle (n = 432), and high (n = 361) school-aged children, respectively. LIG tended to have lower weight, height, and BMI than HIG, but the difference was significant only in the weight and the BMI of the middle school-aged children. The energy intake of LIG didn't differ from that of HIG, but LIG consumed a higher percentage of energy from carbohydrate and a lower percentage of energy from fat than HIG. Some micronutrient intake was lower in LIG than HIG in case of the elementary and the middle school-aged children. The average numbers of servings of milk . dairy products and fruits consumed by LIG were significantly lower than those consumed by HIG in the elementary and the middle school-aged children, and they were less than the respective recommended serving. The average number of servings of meat . fish . egg . beans consumed by LIG was lower than that consumed by HIG in the middle and the high school-aged children, and it was also less than the recommended serving. The results suggested that the diet of children from low-income families should be intervened by strategies different from the other children in order to improve the consumption level of milk.dairy products, fruits, and meat.fish.egg.beans.

Validação do Questionário de Freqüência Alimentar para Adolescentes (QFAA) por grupos de alimentos em uma população de escolares / Validation of a Food Frequency Questionnaire by food groups for the adolescent population

OBJETIVO: Verificar a validade do Questionário de Freqüência Alimentar para Adolescentes para avaliar o consumo de grupos de alimentos entre escolares de Piracicaba, São Paulo. MÉTODOS: Participaram do estudo 94 adolescentes, com idade entre 11 e 15 anos, matriculados em uma escola da rede pública. O consumo alimentar foi avaliado pelo Questionário de Freqüência Alimentar para Adolescentes (QFAA) e a média de dois Recordatórios de 24 horas (R24h) foi utilizada como método de referência. Os itens alimentares foram classificados em 18 grupos. Foram realizadas análises descritivas, teste t-Student pareado e de Wilcoxon, coeficientes de correlação de Pearson e de Spearman. Foram também utilizadas análise de quartis e estatística Kappa ponderado. Os coeficientes de correlação foram corrigidos pela variância intrapessoal dos R24h, estimada a partir de ANOVA com um fator de classificação. RESULTADOS: Não foram verificadas diferenças significativas entre os instrumentos para o arroz, massas, carnes, refrigerantes e sucos artificiais. Os coeficientes de correlação corrigidos pela variabilidade intrapessoal variaram de -0,26 a 0,78. A concordância de classificação dos indivíduos no mesmo quartil de consumo para ambos os métodos variou de 22 por cento (massas) a 50 por cento (feijão). Para quartis opostos, os grupos que tiveram mais de 10 por cento dos indivíduos classificados incorretamente foram massas (19 por cento), carnes (13 por cento) e gorduras (11 por cento). Os valores de Kappa ponderado variaram de - 0,15 (massas) a 0,56 (feijão). O QFAA superestimou o consumo de quase a totalidade dos grupos alimentares e subestimou os grupos dos óleos, feijão, carnes e refrigerantes. CONCLUSÃO: O instrumento apresentou boa validade para feijão, verduras e legumes, leite e derivados, biscoitos recheados e para o arroz.

OBJECTIVE: To verify the validity of the Food Frequency Questionnaire for Adolescents in order to evaluate food group consumption among adolescents from Piracicaba, São Paulo. METHODS: The study was carried out with 94 adolescents, ranging from 11 to 15 years of age, from the public education system. Food consumption was assessed by the Food Frequency Questionnaire for Adolescents (QFAA) and the average of two 24-hour recalls (R24h) was used as a reference method. The food items were classified into 18 groups. Descriptive analyses, paired t-test and Wilcoxon test, Pearson and Spearman coefficients were performed. Analysis of quartiles and Kappa test were used. Correlation coefficients were adjusted by the within-subject variance of the 24-hour recalls, from one-way ANOVA. RESULTS: No significant differences were found between the tools for rice, pasta, meat, soft drinks, and artificial juices. The correlation coefficients adjusted by within-subject variability ranged from -0.26 to 0.78. Agreement of individuals' classification in quartiles of food consumption for both methods ranged from 22 percent (pasta) to 50 percent (beans). For discordant quartiles, the groups that presented more than 10 percent of misclassified subjects were pasta (19 percent), meat (13 percent) and fats (11 percent). The values of the Kappa test ranged from -0.15 (pastas) to 0.56 (beans). The food frequency questionnaire over-estimated the consumption of almost all the food groups and under-estimated the groups of oils, beans, meats, and soft drinks CONCLUSION: The food frequency questionnaire revealed good validity for beans, vegetables, milk and dairy, cookies with filling, and rice.

Food consumption by young adults living in Ribeirão Preto, SP, 2002/2004

There is evidence showing a close relationship between diet and the occurrence of non-communicable chronic diseases. The present study assessed food consumption in a 2002/2004 cohort of young adults born in 1978/79 in Ribeirão Preto, SP, Brazil. The composition of the habitual diet consumed by a sample of 2063 individuals aged 23-25 years was analyzed using a validated semi-quantitative food frequency questionnaire based on studies of prevention of non-communicable chronic diseases. The Dietsys software was used for dietary calculations. In terms of WHO/2003 recommendations, there was a high mean daily consumption of energy from fat (consumption: 35.4 percent; recommendation: 15-30 percent), a low mean intake of energy from carbohydrates (47.5 percent; 55-75 percent) and a low mean consumption of total fibers (15.2 g; >25 g). Mean intake of energy from fatty acids (10 percent; <10 percent) and protein (15.6 percent; 10-15 percent) was within recommended limits. When compared to the recommendations of the food pyramid adapted to the Brazilian population, adequate intake was observed only regarding the meat group (consumption: 1.9 portions; recommended: 1-2). There was a low consumption of vegetables (2.9; 4-5), fruits (1.2; 3-5), breads (3.6; 6-9), and dairy products (1.7; 3), with excessive fat and sugar intake (5.7; 1-2). We conclude that the inadequate food consumption observed in this young population may be associated with the development of excess weight and may contribute to the triggering of non-communicable chronic diseases.

Composition of Food Groups Appropriate for Evaluation of Diet Quality of Korean Adolescents: Based on Kant's Minimum Amount

The purpose of this study was to determine composition of food groups appropriate for the evaluation of the quality of total diet or food guide, using the data from the 1998 National Health and Nutrition Survey. Twenty-fourhour-dietary recalls of total 1,110 Korean adolescents aged 13 - 19 years (male 543, female 567) were analyzed for food group consumed (Dietary Diversity Score, DDS), intake patterns of food group, mean index of nutritional quality (mINQ) and nutrient adequacy ratio (NAR). Considering Korean food pattern different from the Americans, this study is to check if Korean 5 food groups with both of oil & sugar group and vegetable &fruit group, and a minimum amount of 30 g in grain group and 15 g in meat group modified from Kant's minimum amount, 15 g in grain and 30 g in meat, could also be appropriate for the diet evaluation of Korean adolescents. Combination of food group and minimum food intake per each food group used in the first trial were categorized into 6 kinds of types: 1) American 5 food groups with Kant's minimum amount as control or 2) American 5 food groups with modified Kant's minimum amount 3) Korean 5 food groups excluded by sugar with the modified amount 4) Korean 5 food groups with modified amount 5) American food groups added oil group with the modified amount 6) American food groups added oil & sugar group with the modified amount. In case of oil group or oil and sugar group, 5 g was quoted for the minimum amount. Correlation between DDS and indices of other diet quality in each type of food group composition were analyzed and the best food group composition was traced by comparing the correlation coefficients of DDS and mINQ or MARs at alpha < 0.01. There was no meaningful difference in weight length index of the subjects of eating or not-eating oil or oil & sugar, while the values of mINQ showed higher in the subjects eating oil but no difference in the subjects eating oil & sugar, compared to the group not-eating, respectively. In comparison of type 1 and type 2, correlation between DDS and indices of other diet quality showed higher in type 1 using Kant's amount. And comparing the type of a combined group of fruit & vegetable (type 3 and 4) and the type of separated group of fruit and vegetable (type 5 and 6). six groups of separated vegetable and fruit showed the higher correlation of DDSs and indices of diet quality. In case of being classified into six groups with oil, DDS showed correlation of r = 0.293 with INQ. While, being classified into six groups with oil & sugar instead of oil only, DDS showed correlation of r = 0.249 with INQ. Accordingly the type 5 with oil is regarded as the better food group type than the type 6 with oil & sugar. Since better result was shown in the composition of six groups with Kant's minimum amount, the comparative analysis on both of type 1 with oil and oil & sugar was finally performed. Then oil added type 1 showed higher correlation of DDS and indices of diet quality. These result indicated that it would be more appropriate to use six food groups with separate vegetable and fruit including oil group (oil-added type 1) rather than oil &sugar group for evaluat ion of dietary quality of Korean adolescents using DDS.