163 research outputs found

    Association between bisphenol A exposure and cardiometabolic outcomes: A longitudinal approach

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    Increased cardiometabolic risk is associated with abnormalities in blood biomarkers profile and adiposity measurements. Some substances found in the food matrix and the environment, called endocrine-disrupting chemicals, may impair cardiometabolic health in the early and later stages of life. Bisphenol A (BPA) is a food contaminant that migrates from food contact materials and may act as an endocrine disruptor, negatively affecting human health. The present work aims to longitudinally assess the association between BPA exposure and cardiometabolic outcomes, considering data from Portuguese population-based birth cohort Generation XXI. Blood insulin (0.06stdβ; 95 %CI:0.03,0.09) and insulin resistance (0.05stdβ; 95 %CI:0.02,0.08) presented a significant longitudinal association with BPA daily exposure after adjustment for important variables and energy. The same findings were observed for fat mass (0.03stdβ; 95 %CI 0.01,0.06) and waist circumference (0.06stdβ; 95 %CI:0.04,0.08). For z-BMI, a significant cross-sectional (0.03stdβ; 95 %CI:0.01,0.04) and longitudinal (0.02stdβ; 95 %CI:0.00,0.04) association was found. This was the first study assessing the association between BPA exposure and health outcomes from childhood to adolescence. We found an association between BPA exposure and increased blood insulin level, insulin resistance, fat mass percentage, waist circumference and z-BMI. Our results point to the need to reduce exposure to BPA in the early stages of life. © 2024 The AuthorsThe researchers acknowledge all the participants, institutions, research teams and staff involved in all phases of the GXXI. The cohort was funded by the Health Operational Programme – Saúde XXI, Community Support Framework III and the Regional Department of the Ministry of Health. It was supported by the Calouste Gulbenkian Foundation, by FEDER from the Operational Programme Factors of Competitiveness – COMPETE and through national funding from the FCT - Fundação para a Ciência e Tecnologia, I.P. (Portuguese Ministry of Education and Science). This particular study was supported through FEDER from the Operational Programme Factors of Competitiveness – COMPETE and through national funding from the FCT under the project “FOCAcCIa: Exposure to food additives and contaminants from food processing and packaging: Defining patterns and their effects on adiposity and cognitive function from childhood to adolescence” (POCI-01–0145-FEDER-031949); and the FCT doctoral grant (DOI 10.54499/UI/BD/150785/2020) (SAC). This work was supported by FCT - Fundação para a Ciência e Tecnologia, I.P. through the projects with references UIDB/04750/2020 and LA/P/0064/2020 and DOI identifiers https://doi.org/10.54499/UIDB/04750/2020 and https://doi.org/10.54499/LA/P/0064/2020. The funding institutions had no role in the design, analysis or writing of this article

    Application of a Latent Transition Model to Estimate the Usual Prevalence of Dietary Patterns

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    Background: This study aims to derive habitual dietary patterns of the Portuguese adult population by applying two methodological approaches: a latent class model and a latent transition model. The novel application of the latent transition model allows us to determine the day-to-day variability of diet and to calculate the usual prevalence of dietary patterns. Methods: Participants are from the National Food, Nutrition and Physical Activity Survey of the Portuguese population, 2015-2016 (2029 women; 1820 men, aged >= 18 years). Diet was collected by two 24 h dietary recalls (8-15 days apart). Dietary patterns were derived by: (1) a latent class model using the arithmetic mean of food weigh intake, with concomitant variables (age and sex); (2) a latent transition model allowing the transition from one pattern to another, with the same concomitant variables. Results: Six dietary patterns were identified by a latent class model. By using a latent transition model, three dietary patterns were identified: "In-transition to Western" (higher red meat and alcohol intake; followed by middle-aged men), "Western" (higher meats/eggs and energy-dense foods intake; followed by younger men), and "Traditional-Healthier" (higher intake of fruit, vegetables and fish, characteristic of older women). Most individuals followed the same pattern on both days, but around 26% transited between "In-transition to Western" and "Western". The prevalence of the dietary patterns using a single recall day (40%, 27%, 33%, respectively) is different from the usual prevalence obtained by the latent transition probabilities (48%, 36%, 16%). Conclusion: Three dietary patterns, largely dependent on age and sex, were identified for the Portuguese adult population: "In-transition to Western" (48%), "Western" (36%), and "Traditional-Healthier" (16%), but 26% were transient between patterns. Dietary patterns are, in general, deviating from traditional habits

    Meat or meatless meals at lunch and dinner - exploring the associated factors and transition between meals

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    This study aimed to explore the factors associated with the consumption of meat vs. meatless meals and to assess the applicability of a multi-state model to describe transitions between lunch and dinner. Fifteen thousand four hundred and eight main meals (lunch and dinner) from a sample of adults (18-84 years, n = 3852) from the Portuguese Food, Nutrition and Physical Activity Survey (IAN-AF 2015-2016) were categorised as meat, fish, ovolactovegetarian or snack. Adjusted generalised-mixed-effects models were used to explore the associations and a time-homogeneous Markov-multi-state model was applied to study the transitions. Women, older and higher educated individuals presented higher odds of consuming meatless meals and lower hazard of transitioning to meat in the following main meal. Strategies for replacing meat with more sustainable foods should be specific towards different population groups. Studying transitions across main meals, using multi-state models, can support the development of feasible, realistic and group-specific strategies to replace meat and promote dietary variety

    Patterns of ultra-processed foods consumption throughout childhood and trajectories of growth and adiposity

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    Background & aims: Ultra-processed foods (UPF) consumption has been associated with unhealthy outcomes. However, the literature lacks robust longitudinal studies considering its cumulative effect, particularly in young populations. This study aimed to evaluate the relationship between UPF consumption patterns throughout childhood with growth and adiposity trajectories. Methods: Generation XXI population-based birth cohort (Porto, Portugal) participants were included. Food frequency questionnaire items at 4, 7 and 10 years were classified according to the processing degree using NOVA. UPF consumption patterns based on total quantity were identified using a probabilistic Gaussian mixture model using participants with complete data and predicting for the total sample (n = 8647). To assess whether the outcome trajectories from 4 to 13 years [body weight (kg), height (cm), body mass index (BMI) z-score, waist circumference (WC) (cm) and fat mass (FM) (%)] depend on UPF patterns, a mixed-effects model with linear and quadratic terms for age adjusted for confounders was used. Participants with at least 2 measurements at 4, 7, 10 or 13 years were included in this study (n range: 5885–6272). Results: Four UPF consumption patterns were identified: constantly lower consumption (15.4%), constantly intermediate consumption (56.4%), transition from low to high consumption (11.2%), and constantly higher consumption (17.1%). Compared to the constantly lower UPF consumption, the constantly higher consumption pattern was associated with greater acceleration in body weight (β: 0.119; 95%CI: 0.027; 0.212), BMI z-score (β: 0.014; 95%CI: 0.004; 0.023), WC (β: 0.232; 95%CI: 0.144; 0.319) and FM% (β: 0.200; 95%CI: 0.092; 0.308) and with lower acceleration in height (β: −0.063; 95%CI: −0.111;-0.015). The constantly intermediate UPF consumption pattern was associated with greater acceleration in body weight (β: 0.123; 95%CI: 0.043; 0.203), WC (β: 0.120; 95%CI: 0.045; 0.195) and FM% (β: 0.146; 95%CI: 0.054; 0.238). Conclusion: Constantly higher and constantly intermediate UPF consumption throughout childhood were associated with worse growth and adiposity trajectories until adolescence. © 2024 The Authors"G21 was funded by the Health Operational Programme – Saúde XXI, Community Support Framework III and the Regional Department of Ministry of Health. It was supported by the Portuguese Foundation for Science and Technology – FCT (Portuguese Ministry of Education and Science) within the scope of specific projects. This study was financed by national funds through FCT, I.P., under the Epidemiology Research Unit of the Institute of Public Health of the University of Porto (UIDB/04750/2020, UIDP/04750/2020), the Laboratory for Integrative and Translational Research in Population Health of the University of Porto (LA/P/0064/2020) and the FOCAcCIa project (POCI-01-0145-FEDER-031949). VM benefited from an FCT individual doctoral grant (SFRH/BD/143747/2019). SV is supported by national funds through FCT, under the programme of ‘Stimulus of Scientific Employment – Individual Support’ within the contract 10.54499/2021.01096.CEECIND/CP1686/CT0001 (http://doi.org/10.54499/2021.01096.CEECIND/CP1686/CT0001).

    Propriedades psicométricas do Eating Disorders Inventory em adolescentes portugueses

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    Introdução: Vários estudos sobre as perturbações do comportamento alimentar em adolescentes utilizam o Eating Disorders Inventory (EDI) apesar de este instrumento ter sido desenvolvido em adultos. No sentido de aumentar a sua utilidade clínica e em investigação, é importante analisar as qualidades psicométricas do EDI quando usado em indivíduos mais jovens do que aqueles em que foi desenvolvido. Neste estudo examinam-se as características psicométricas do EDI em adolescentes portugueses de 13 anos. Métodos: A amostra inclui 1184 adolescentes (641 raparigas e 543 rapazes), nascidos em 1990 e inscritos nas escolas públicas e privadas da cidade do Porto, que integram a coorte EPITeen. A auto-aplicação das escalas (EDI e Escala de Silhuetas de Stunkard) e as avaliações antropométricas foram realizadas nas escolas. Para análise das características psicométricas, foi avaliada a consistência interna e utilizada a análise de componentes principais seguida de rotação varimax. Na análise da validade de construto, as variáveis quantitativas foram comparadas com recurso aos testes de Mann-Whitney e Kruskal-Wallis. Resultados: Dos 64 itens que compõem o EDI, 17 mostraram-se inconsistentes. Após a sua exclusão, foi extraída uma solução com sete componentes principais, que explicaram 49,8% da variância total. Nesta solução foram definidas oito subescalas que apresentaram valores de alfa de Cronbach a variar de 0,53 a 0,87. As três subescalas que avaliam aspectos centrais nas perturbações do comportamento alimentar (Impulso para Emagrecer, Bulimia e Insatisfação Corporal) apresentaram boas características psicométricas e à excepção do item 1 (correlação item-total= 0,00), os itens mostraramse consistentes (correlação item-total a variar de 0,41 a 0,73; alfa de Cronbach a variar entre 0,77 a 0,87). Em consonância com os pressupostos teóricos previamente definidos, as raparigas em comparação com os rapazes (4,0 vs 1,7; p <0,001) e os adolescentes em risco de excesso de peso ou com excesso de peso em comparação com os normoponderais, apresentaram valores médios significativamente superiores na subescala Impulso para Emagrecer. Os adolescentes classificados como insatisfeitos ou muito insatisfeitos na escala de silhuetas apresentaram valores médios significativamente superiores na subescala Insatisfação Corporal. Conclusão: A versão portuguesa do EDI apresentou boas características psicométricas na avaliação de sintomatologia associada a perturbações do comportamento alimentar em adolescentes, em particular através das subescalas Impulso para Emagrecer, Bulimia, e Insatisfação Corporal, que se mantiveram consistentes com as subescalas originais. O instrumento é capaz de distinguir grupos de acordo com os construtos teóricos.Introduction: Although Eating Disorders Inventory (EDI) was developed with adults, a large amount of research about eating disorders in adolescents is usually conducted with EDI. The clinical and research utility of this instrument would be improved by analysing its psychometric properties when used with younger people than those in the original standardization samples. The main objective of our study is to analyse the psychometric properties of the Eating Disorders Inventory (EDI) among 13 year old Portuguese adolescents. Methods: A sample of 1184 adolescents (641 girls and 543 boys) born in 1990 and attending public and private schools in Porto completed EDI and was evaluated with Stunkard Figure Scale at school. Anthropometric measurements were also performed. Internal consistency was analysed trough item-total correlations and Cronbach's alpha coefficients. Mann-Whitney and Kruskal-Wallis tests were used to evaluate construct validity. Results: After the exclusion of 17 of the 64 items that showed low consistency, a correlation matrix of seven principal components, that explained 49.8% of the total variance, was obtained. In this matrix, 8 subscales with alpha ranging from 0.53 to 0.87 were defined. The three core EDI subscales (Drive for Thinness, Bulimia and Body Dissatisfaction) presented good psychometric properties and, except item 1 (itemtotal correlation= 0.00), items showed good internal consistency (item-total correlations ranging from 0.41 and 0.73, Cronbach's alpha ranging from 0.77 and 0.87). In accordance with theoretical constructs previously defined, girls presented higher mean scores than boys on Drive for Thinness subscale (4.0 vs. 1.7, p < 0.001). Also, adolescents with a healthy weight presented significantly lower scores than overweight adolescents in the same subscale. Boys and girls classified as dissatisfied or very dissatisfied with body image according to Stunkard Figure Rating Scale presented significantly higher scores on Body Dissatisfaction EDI subscale. Conclusion: The Portuguese version of EDI, with the proposed changes, showed good psychometric characteristics to evaluate symptoms associated with eating disorders among 13 year old adolescents. The subscales Drive for Thinness, Bulimia and Body Dissatisfaction, besides presenting good psychometric properties, remained similar to the same subscales in the original EDI. The instrument is able to distinguish groups according to theoretical constructs

    Amiodarone-Induced Electrical Storm: A Nightmare in the Emergency Room

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    Drug-induced long QT syndrome (LQTS) is defined as prolonged corrected QT interval (QTc ≥460 ms) plus polymorphic ventricular arrhythmia fitting the description of torsades de pointes temporally associated with the administration of a drug or combination of drugs. Amiodarone therapy is a known uncommon cause of acquired QT interval prolongation that should not be underestimated. We present a case of an iatrogenic electrical storm with atrial fibrillation (AF) in which amiodarone was administered to attempt chemical cardioversion, resulting in an unnoticed prolongation of the QT interval, with subsequent repeated polymorphic ventricular tachycardia, managed with isoproterenol. Concomitant drugs and slight electrolyte disturbances potentiated this phenomenon. Given the widespread use of this drug in the emergency department, our case highlights a pertinent matter for all medical emergency practitioners. Additionally, it stresses the significance of potential precipitating factors, such as electrolyte imbalances, which are clinical conditions very frequent in the emergency context, along with the importance of recognizing drug interactions. Finally, this case also emphasizes the vital importance of closely monitoring the patient's receiving amiodarone.info:eu-repo/semantics/publishedVersio

    Exploring dietary patterns and their association with environmental sustainability and body mass index in children and adolescents: Insights from the National Food, Nutrition and Physical Activity Survey 20152016

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    Objective: To adapt four dietary patterns for children and adolescents, and study their associations with sustainability (greenhouse-gas emissions-GHGE and land use-LU), and health (body mass index-BMI) indicators. Research methods & procedures: Dietary intake of children (3-9y) and adolescents (10-17y) from the National Food, Nutrition and Physical Activity Survey 20152016, Portugal (n = 1153) was assessed through two non-consecutive interviews: one-day food diaries (children), and 24-h recalls (adolescents), using an automated multiple-pass method, including a picture book for portion sizes estimation. Adherence to the Eat-Lancet and World Health Organization (WHO) recommendations, Mediterranean and Atlantic diets were evaluated using adapted versions for pediatrics of the World Index for Sustainability and Health (WISH), Diet Quality Index (DQI), Mediterranean Diet Score (MDS) and Southern-European Atlantic Diet (SEAD), respectively. Diet-related GHGE and LU were estimated using the SHARP-Indicators database. BMI (measured) z-scores were classified according to WHO criteria. A standardized weighted health-sustainability composite index was created (BMI + 0.5*GHGE+0.5*LU). Adjusted linear regression models were computed. Results: WISH, DQI, MDS, and SEAD had weighted mean scores (range) of 50 (0130), 24 (936), 20 (832), and 17 (832), respectively. All dietary patterns were associated with lower environmental impact, particularly in children, but not with BMI. Only MDS explained both health and sustainability indicators in childhood (composite index: sd.ß = 0·223,95%CI:-0·347,-0·072,R2 = 25.1 %), and adolescence (composite index: sd.ß = 0·159,95%CI:-0·315,-0·003,R2 = 31.3 %). Conclusion: The Mediterranean diet was the most related to (higher) environmental sustainability and (lower) BMI. However, in children (not adolescents), the WISH, DQI, and SEAD showed then same associations. (c) 2024 The Author
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