Worldwide trends in underweight and obesity from 1990 to 2022: a pooled analysis of 3663 population-representative studies with 222 million children, adolescents, and adults

Background Underweight and obesity are associated with adverse health outcomes throughout the life course. We estimated the individual and combined prevalence of underweight or thinness and obesity, and their changes, from 1990 to 2022 for adults and school-aged children and adolescents in 200 countries and territories. Methods We used data from 3663 population-based studies with 222 million participants that measured height and weight in representative samples of the general population. We used a Bayesian hierarchical model to estimate trends in the prevalence of different BMI categories, separately for adults (age ≥20 years) and school-aged children and adolescents (age 5–19 years), from 1990 to 2022 for 200 countries and territories. For adults, we report the individual and combined prevalence of underweight (BMI 2 SD above the median). Findings From 1990 to 2022, the combined prevalence of underweight and obesity in adults decreased in 11 countries (6%) for women and 17 (9%) for men with a posterior probability of at least 0·80 that the observed changes were true decreases. The combined prevalence increased in 162 countries (81%) for women and 140 countries (70%) for men with a posterior probability of at least 0·80. In 2022, the combined prevalence of underweight and obesity was highest in island nations in the Caribbean and Polynesia and Micronesia, and countries in the Middle East and north Africa. Obesity prevalence was higher than underweight with posterior probability of at least 0·80 in 177 countries (89%) for women and 145 (73%) for men in 2022, whereas the converse was true in 16 countries (8%) for women, and 39 (20%) for men. From 1990 to 2022, the combined prevalence of thinness and obesity decreased among girls in five countries (3%) and among boys in 15 countries (8%) with a posterior probability of at least 0·80, and increased among girls in 140 countries (70%) and boys in 137 countries (69%) with a posterior probability of at least 0·80. The countries with highest combined prevalence of thinness and obesity in school-aged children and adolescents in 2022 were in Polynesia and Micronesia and the Caribbean for both sexes, and Chile and Qatar for boys. Combined prevalence was also high in some countries in south Asia, such as India and Pakistan, where thinness remained prevalent despite having declined. In 2022, obesity in school-aged children and adolescents was more prevalent than thinness with a posterior probability of at least 0·80 among girls in 133 countries (67%) and boys in 125 countries (63%), whereas the converse was true in 35 countries (18%) and 42 countries (21%), respectively. In almost all countries for both adults and school-aged children and adolescents, the increases in double burden were driven by increases in obesity, and decreases in double burden by declining underweight or thinness. Interpretation The combined burden of underweight and obesity has increased in most countries, driven by an increase in obesity, while underweight and thinness remain prevalent in south Asia and parts of Africa. A healthy nutrition transition that enhances access to nutritious foods is needed to address the remaining burden of underweight while curbing and reversing the increase in obesity. Funding UK Medical Research Council, UK Research and Innovation (Research England), UK Research and Innovation (Innovate UK), and European Union

Diminishing benefits of urban living for children and adolescents’ growth and development

AbstractOptimal growth and development in childhood and adolescence is crucial for lifelong health and well-being1–6. Here we used data from 2,325 population-based studies, with measurements of height and weight from 71 million participants, to report the height and body-mass index (BMI) of children and adolescents aged 5–19 years on the basis of rural and urban place of residence in 200 countries and territories from 1990 to 2020. In 1990, children and adolescents residing in cities were taller than their rural counterparts in all but a few high-income countries. By 2020, the urban height advantage became smaller in most countries, and in many high-income western countries it reversed into a small urban-based disadvantage. The exception was for boys in most countries in sub-Saharan Africa and in some countries in Oceania, south Asia and the region of central Asia, Middle East and north Africa. In these countries, successive cohorts of boys from rural places either did not gain height or possibly became shorter, and hence fell further behind their urban peers. The difference between the age-standardized mean BMI of children in urban and rural areas was &lt;1.1 kg m–2 in the vast majority of countries. Within this small range, BMI increased slightly more in cities than in rural areas, except in south Asia, sub-Saharan Africa and some countries in central and eastern Europe. Our results show that in much of the world, the growth and developmental advantages of living in cities have diminished in the twenty-first century, whereas in much of sub-Saharan Africa they have amplified.</jats:p

Worldwide trends in underweight and obesity from 1990 to 2022: a pooled analysis of 3663 population-representative studies with 222 million children, adolescents, and adults

Background Underweight and obesity are associated with adverse health outcomes throughout the life course. We estimated the individual and combined prevalence of underweight or thinness and obesity, and their changes, from 1990 to 2022 for adults and school-aged children and adolescents in 200 countries and territories. Methods We used data from 3663 population-based studies with 222 million participants that measured height and weight in representative samples of the general population. We used a Bayesian hierarchical model to estimate trends in the prevalence of different BMI categories, separately for adults (age ≥20 years) and school-aged children and adolescents (age 5–19 years), from 1990 to 2022 for 200 countries and territories. For adults, we report the individual and combined prevalence of underweight (BMI 2 SD above the median). Findings From 1990 to 2022, the combined prevalence of underweight and obesity in adults decreased in 11 countries (6%) for women and 17 (9%) for men with a posterior probability of at least 0·80 that the observed changes were true decreases. The combined prevalence increased in 162 countries (81%) for women and 140 countries (70%) for men with a posterior probability of at least 0·80. In 2022, the combined prevalence of underweight and obesity was highest in island nations in the Caribbean and Polynesia and Micronesia, and countries in the Middle East and north Africa. Obesity prevalence was higher than underweight with posterior probability of at least 0·80 in 177 countries (89%) for women and 145 (73%) for men in 2022, whereas the converse was true in 16 countries (8%) for women, and 39 (20%) for men. From 1990 to 2022, the combined prevalence of thinness and obesity decreased among girls in five countries (3%) and among boys in 15 countries (8%) with a posterior probability of at least 0·80, and increased among girls in 140 countries (70%) and boys in 137 countries (69%) with a posterior probability of at least 0·80. The countries with highest combined prevalence of thinness and obesity in school-aged children and adolescents in 2022 were in Polynesia and Micronesia and the Caribbean for both sexes, and Chile and Qatar for boys. Combined prevalence was also high in some countries in south Asia, such as India and Pakistan, where thinness remained prevalent despite having declined. In 2022, obesity in school-aged children and adolescents was more prevalent than thinness with a posterior probability of at least 0·80 among girls in 133 countries (67%) and boys in 125 countries (63%), whereas the converse was true in 35 countries (18%) and 42 countries (21%), respectively. In almost all countries for both adults and school-aged children and adolescents, the increases in double burden were driven by increases in obesity, and decreases in double burden by declining https://researchonline.ljmu.ac.uk/images/research_banner_face_lab_290.jpgunderweight or thinness. Interpretation The combined burden of underweight and obesity has increased in most countries, driven by an increase in obesity, while underweight and thinness remain prevalent in south Asia and parts of Africa. A healthy nutrition transition that enhances access to nutritious foods is needed to address the remaining burden of underweight while curbing and reversing the increase in obesity

Média dos valores da frase em diferentes gravidades do desvio fonológico evolutivo Average values of phrase in different severities of phonological disorder

OBJETIVO: verificar se há influência da gravidade do desvio fonológico evolutivo quanto à semântica e morfossintaxe. MÉTODO: participaram do estudo 14 crianças com desvio fonológico, de idades entre quatro e sete anos. Foi realizada a Avaliação Fonológica da Criança e o desvio foi classificado a partir do Percentual de Consoantes Corretas- Revisado, baseado no Percentual de Consoantes Corretas, o qual divide a gravidade do desvio fonológico em leve, leve-moderado, moderado-grave e grave. Verificou-se, quanto à gravidade, que quatro sujeitos apresentavam desvio leve, quatro leve-moderado, três moderado-grave e três grave. Em seguida, as crianças foram submetidas à avaliação da semântica e da morfossintaxe, por meio da pesquisa da Média dos Valores da Frase, em que foram coletadas frases de três diferentes modalidades de linguagem: descrever uma figura, contar uma história e responder a perguntas. As cinco primeiras frases faladas pelas crianças foram pontuadas de acordo com a sua complexidade. Posteriormente, foi realizada análise estatística por meio da técnica não paramétrica de Kruskal-Wallis, sendo considerado significante valor de p<0,05. RESULTADOS: não houve diferença estatisticamente significante entre os diferentes graus de gravidade do DF nas três modalidades de linguagem avaliadas, no que se refere à morfossintaxe, à semântica, ao total da construção e ao total da extensão. CONCLUSÃO: a gravidade do desvio fonológico não influencia o desempenho das crianças no que se refere ao desenvolvimento da semântica e da morfossintaxe, visto que não houve significância estatística entre os resultados. Desse modo, pode-se sugerir que outros estudos sejam realizados a fim de confirmarem ou não tais resultados.<br>PURPOSE: to check the influence of severity arising from the phonological disorder related to semantics and morphosyntax. METHOD: the sample consisted of 14 children aged between 4:0 and 7:0 years, with phonological disorder. We carried out the child's phonological assessment, and the phonological disorder was classified according to the Percentage of Correct Consonants Revised, based on the Percentage of Correct Consonants, which classifies the severity of the phonological disorder in mild, mild-moderate, moderate-severe, and severe. We found that four subjects showed mild disorder, four showed mild-moderate disorder, three showed moderate-severe disorder, and three showed severe disorder. After this procedure, the children were exposed to morphosyntax and semantic evaluation, through the research on the average values of phrase, in which they collected phrases from three different language modalities: describing a picture, telling a story, and answering questions. The five phrases the children first spoke were punctuated according to their complexity. Next, we accomplished the statistical analysis through the Kruskal-Wallis non-parametric test. The significant p value is considered p<0.05. RESULTS: there was no statistical significant difference among the different degrees of severity of the phonological disorder in the three evaluated language modalities, as related to the morphosyntax, semantics, total of construction, and total of length. CONCLUSION: we can conclude that the severity of the phonological disorder does not affect the children's performance regarding morphosyntax and semantic development, because there was no statistical significance among the results. Therefore, we may suggest that other studies should be carried out in order to confirm or not such results

Aspectos históricos, culturais e sociais do trabalho Aspectos historicos, culturales y sociales del trabajo Historical, cultural and social aspects of labor

Trata-se de um estudo histórico-social que teve como objetivo contribuir para a compreensão da contínua evolução do processo de trabalho e sua íntima relação com o trabalhador. Foram utilizadas para a elaboração deste ensaio fontes bibliográficas diversas, com fundamento em dados históricos, conceituais, filosóficos e científicos. Os achados nos levaram à conclusão que, embora profundas transformações tenham ocorrido no mundo do trabalho, em sua essência, a atividade laboriosa marcou a vida dos indivíduos e das coletividades em diferentes épocas e lugares.<br>Es un estudio histórico-social, cuyo objetivo fue contribuir para la comprensión de la continua evolución del proceso de trabajo, desde la Antigüedad Clásica hasta la industrialización en el mundo moderno, y su íntima relación con el trabajador. Fueron utilizadas para la elaboración de este ensayo fuentes bibliográficas diversas, fundamentadas en datos históricos, conceptuales, filosóficos y científicos. Lo observado nos permite concluir que, aunque profundas transformaciones hayan ocurrido en el mundo del trabajo, en su esencia, la actividad laboriosa marcó la vida de los individuos y de las colectividades en distintas épocas y locales.<br>It is a historical-social study that aimed at contributing for the comprehension of the continuous evolution of the working process since the Classic Antiquity until the industrialization in the modern world and the intimate relation with the worker. A variety of bibliographic sources were used for this essay, based on historical, conceptual, filosophical and scientific data. The findings drove to the conclusion that although deep transformations have occurred on the world of labor, the working activity, in its essence, has marked the lives of individuals and collectivities in different times and places