The role of individual and contextual economic factors in obesity among adolescents: A cross-sectional study including 143 160 participants from 41 countries.

Background: To our knowledge, no previous study has examined the role of index of economic freedom (IEF) in the prevalence of excess weight and obesity in adolescents. The aim of this study was to determine the association between both individual and contextual economic factors and the prevalence of overweight and obesity (i.e. excess weight) or obesity in adolescents from different countries. Methods: A cross-sectional study was carried out using data from the 2017/2018 wave of the Health Behaviour School-Aged Children study. Body mass index z-score was determined following the International Obesity Task Force criteria and, subsequently, excess weight and obesity were computed. The Family Affluence Scale was used to assess socioeconomic status. The index of IEF was used to estimate the benefits of economic freedom, both for individuals and for society as a whole. Results: An inverse association was shown between socioeconomic status (SES) and excess weight or obesity, with adolescents with high SES and medium SES being less likely to have excess weight compared to adolescents with low SES (medium SES: odds ratio (OR) = 0.79; 95% confidence interval (CI) = 0.77-0.82, P < 0.001; high SES: OR = 0.65; 95% CI = 0.62-0.68, P < 0.001). For obesity, lower odds were also found for adolescents with medium SES (medium SES: OR = 0.74; 95% CI = 0.69-0.80, P < 0.001) or high SES (high SES: OR = 0.55; 95% CI 0.49-0.61, P < 0.001), in comparison with their counterparts with low SES. On the other hand, it was observed a greater likelihood of having excess weight and obesity in mostly unfree countries (excess weight: OR = 0.72; 95% CI = 0.51-1.00, P = 0.052; obesity: OR = 0.60; 95% CI = 0.39-0.92, P = 0.019) compared to free/mostly free countries. These results remained significant after adjusting for several sociodemographic and lifestyle covariates. Conclusions: Both individual and contextual factors seem to have a crucial role in the prevalence of excess weight and obesity in adolescents.

Inequalities in the association between adherence to the Mediterranean diet and physical fitness in the young population during the COVID-19 lockdown.

Introduction: Objective: this study analyzed the association between adherence to the Mediterranean diet and proxy-reported physical fitness among Spanish and Brazilian youths during the COVID-19 lockdown according to several inequality indicators. Methods: we conducted a cross-sectional study with parents and guardians of children and adolescents from Spain and Brazil. The evaluation process was through the use of online questionnaires. Adherence to the Mediterranean diet was assessed using the Mediterranean Diet Quality Index in Children and Adolescents. Proxy-reported physical fitness was determined using the International Fitness Scale. Inequality indicators (gender, nationality, socioeconomic status, and parents/guardians' education level) were evaluated with a survey completed by the participants' parents/guardians. Binary logistic regression models estimated the association between adherence to the Mediterranean diet and proxy-reported physical fitness, with stratification according to inequality variables. A total sample of 1,099 Spanish and Brazilian individuals (47.6% girls, aged 3 to 17 years) were included in the analysis. Results: compared to the "improvement needed to Mediterranean diet" category, the "optimal Mediterranean diet" group was significantly associated with "very good" physical fitness in boys (OR = 1.5; 95 % CI: 1.0-2.1) and in participants with parents/legal guardians' education level without university studies (OR = 1.5; 95 % CI: 1.0-2.4). Conclusions: gender and parents/guardians' education level plays a significant role in the association between the "optimal Mediterranean Diet" and "very good" physical fitness level in Spanish and Brazilian children and adolescents. Future prospective studies are needed to investigate the role of inequality indicators in this relationship.

Introducción: Objetivo: este estudio analizó la asociación entre la adherencia a la dieta mediterránea y la aptitud física autoinformada entre jóvenes españoles y brasileños durante el confinamiento de COVID-19 según varios indicadores de desigualdad. Métodos: se realizó un estudio transversal con padres y tutores de niños y adolescentes de España y Brasil. El proceso de evaluación fue a través del uso de cuestionarios online. La adherencia a la dieta mediterránea se evaluó mediante el Índice de Calidad de la Dieta Mediterránea en Niños y Adolescentes. La aptitud física declarada por los padres se determinó mediante la Escala Internacional de Aptitud Física. Los indicadores de desigualdad (género, nacionalidad, estatus socioeconómico y nivel educativo de los padres/tutores) se evaluaron con una encuesta completada por los padres/tutores de los participantes. Los modelos de regresión logística binaria estimaron la asociación entre la adherencia a la dieta mediterránea y la aptitud física informada por los progenitores, estratificando según las variables de desigualdad. Se incluyó en el análisis una muestra total de 1099 individuos españoles y brasileños (47,6 % niñas, de 3 a 17 años). Resultados: en comparación con la categoría de "necesidad de mejorar la dieta mediterránea", la de "dieta mediterránea óptima" se asoció significativamente con una aptitud física "muy buena" en los chicos (OR = 1,5; IC del 95 %: 1,0-2,1) y en los participantes con nivel educativo de los padres/tutores sin estudios universitarios (OR = 1,5; IC del 95 %: 1,0-2,4). Conclusiones: el género y el nivel educativo de los padres/tutores legales desempeñan un papel significativo en la asociación entre la "dieta mediterránea óptima" y el nivel de condición física "muy bueno" en niños y adolescentes españoles y brasileños. Se necesitan futuros estudios prospectivos para investigar el papel de los indicadores de desigualdad en esta relación.

Factors associated with meeting the WHO physical activity recommendations in pregnant Colombian women.

In the absence of medical contraindications, physical activity (PA) can offer health maternal and fetal health outcomes during pregnancy. However, most pregnant women may not consider PA to be feasible, suitable and safe. Hence, it is essential to determine the prevalence of pregnant women who meet the PA recommendations and the possible factors associated with that meeting, since it might be important from the perspective of pregnant women's health. The aim of the present study was to establish the prevalence of meeting the World Health Organization PA recommendations for Colombian pregnant women, as well as possible factors that may be associated with meeting that recommendations. A cross-sectional study including representative data from the National Nutritional Situation Survey (2015) in Colombia was performed. Data were collected in 2015-2016. From an initial sample of 1140 Colombian pregnant women, 702 participants with complete data were included in the final analysis. PA was assessed by self-reported information through the long version of the International Physical Activity Questionnaire. Several potential factors were analysed according to four levels of the socioecological model: the individual, interpersonal, organizational and community levels. The prevalence of Colombian pregnant women who met with the PA recommendations was 7.5%. Indigenous and Mestizo pregnant women showed lower probabilities of meeting the PA recommendations [Indigenous: OR 0.05, 95% CI (0.01-0.18); Mestizo: OR 0.12, 95% CI (0.06-0.22)] than Afro-Colombian participants. Additionally, participants who lived near green and safe spaces for PA were more likely to meet the PA recommendations [OR 2.30, 95% CI (1.06-4.79)] than those who did not live near green areas. In conclusion, a low percentage of Colombian pregnant women met the new PA recommendations. The associations found according to race/ethnicity and living near green and safe areas underline the presence of fundamental disparities associated with meeting PA recommendations.

[Assessment of adherence to the Mediterranean diet in university Health Sciences students and its relationship with level of physical activity]. / Valoración de la adherencia a la dieta mediterránea en estudiantes universitarios de Ciencias de la Salud y su relación con el nivel de actividad física.

INTRODUCTION: Objective: to assess the degree of adherence to the Mediterranean diet and the practice of physical activity in university Health Sciences students in Castile-La Mancha. Methods: this was a cross-sectional, observational study by means of a dietary and physical activity survey. The sample consisted of 575 university students (77.7 % women). An initial data collection survey was developed using the Google Forms platform (https://www.google.com/forms/about/). Adherence to the Mediterranean diet was assessed with the Mediterranean Diet Adherence Screener (MEDAS) questionnaire and the modified Prevention with Mediterranean Diet (PREDIMED) questionnaire. The Rapid Assessment of Physical Activity Scale (RAPA) questionnaire was used to measure physical activity. Results: we found a 58.3 % adherence to Mediterranean diet among Health Sciences students, with 38.6 % of average adherence, and 5.0 % of poor adherence, with a low consumption of fruits with no gender differences, and a high consumption of red or processed meat and butter or cream with significant differences between women and men. There is also a high consumption of carbonated beverages (more frequent in women). Likewise, a high percentage of students (22.5 %) do practically no physical activity. As for physical exercise, it is always higher in men, with significant differences (p > 0.05). Conclusion: this study suggests that the sample of university Health Sciences students in Castile-La Mancha shows an acceptable adherence to the Mediterranean diet and insufficient levels of physical activity.

INTRODUCCIÓN: Objetivo: valorar el grado de adherencia a la dieta mediterránea y la práctica de actividad física en estudiantes universitarios de Ciencias de la Salud de Castilla-La Mancha. Método: estudio observacional transversal mediante encuesta alimentaria y de actividad física. La muestra contó con 575 estudiantes universitarios (77,7 % de mujeres). Se desarrolló una encuesta de recogida de datos inicial mediante la plataforma Google Forms (https://www.google.com/forms/about/). La adherencia a la dieta mediterránea se valoró con el cuestionario Mediterranean Diet Adherence Screener (MEDAS) y el cuestionario PREvención con DIeta MEDiterránea (PREDIMED), modificado. Para medir la actividad física se utilizó el cuestionario Rapid Assessment of Physical Activity Scale (RAPA), que valora la actividad física desempeñada. Resultados: se encontró en los estudiantes de Ciencias de la Salud una adherencia a la dieta mediterránea del 58,3 %, siendo la adherencia media del 38,6 % y la mala adherencia del 5,0 %, observándose un bajo consumo de frutas sin diferencias de sexo, un alto consumo de carne roja o procesada y de mantequillas o natas, con diferencias significativas entre mujeres y hombres. También hay un consumo alto de bebidas carbonatadas (más frecuente en mujeres). Asimismo, un porcentaje alto de estudiantes (22,5 % del total) no hace prácticamente ninguna actividad física. En cuanto al ejercicio físico, siempre es mayor entre los hombres, con diferencias significativas (p > 0,05). Conclusión: este estudio sugiere que la muestra de estudiantes universitarios de Ciencias de la Salud de Castilla-La Mancha presenta una aceptable adherencia a la dieta mediterránea y unos niveles de actividad física insuficientes.

Sociodemographic Correlates of Obesity among Spanish Schoolchildren: A Cross-Sectional Study.

Some studies have been conducted in order to assess the association between weight status (assessed by body mass index) and socio-demographic factors. Nevertheless, only a few of them have indicated these associations by other anthropometric parameters (e.g., skinfolds). The aim of this study was to determine, compare, and examine the influence of age, sex, type of the schooling, per capita income, area of residence, and immigrant status on obesity parameters in schoolchildren aged 6-13 from the Region of Murcia. A cross-sectional study was carried out in six different Primary schools of the Region of Murcia (Spain). A total sample of 370 children (166 girls) aged 6-13 (8.7 ± 1.8) were selected. In order to determine participants' body composition, body mass index, waist circumference, waist-to-height ratio, and skinfold measurements were calculated. Higher associations of excess of weight (OR = 1.96; 95%CI = 1.19-3.20) and abdominal obesity (OR = 3.12; 95CI% = 1.49-6.94) were shown in the case of children from public schools. A greater association of high trunk fat mass was found in children from municipalities with high per capita income (OR = 3.20; 95%CI = 1.05-9.77). Therefore, lower association of having an inadequate %BF was found in the participants aged 6-9 (OR = 0.38; 95%CI = 0.24-0.54), and immigrant students (OR = 2.63; 95%CI = 1.69-4.10). Our study suggested that overweight/obesity among schoolchildren in the Region of Murcia is higher than the overall prevalence of Spain. The results of the adjusted analyses showed that age, type of schooling, per capita income, and immigrant status were associated with obesity parameters.