Diferencias en la evolución del sobrepeso y la obesidad infantil en España en el periodo 2011-2019 por sexo, edad y nivel socioeconómico: resultados del estudio ALADINO / Differences in the temporal trends of childhood overweight and obesity in Spain in the 2011-2019 period by sex, age and socioeconomic level: Results of the ALADINO study

Introducción: El exceso de peso infantil es un problema de salud pública creciente. El objetivo del trabajo es estudiar la evolución de la prevalencia de sobrepeso, de obesidad y de obesidad central en escolares de 6 a 9años en España entre 2011 y 2019 según características demográficas y socioeconómicas.MetodologíaSe incluyeron las rondas 2011, 2015 y 2019 del estudio observacional, descriptivo y transversal ALADINO en escolares de ambos sexos de 6 a 9años. Se realizó un análisis descriptivo de la evolución de la prevalencia de sobrepeso y de obesidad según los criterios de la Organización Mundial de la Salud (OMS) y la International Obesity Task Force (IOTF), así como obesidad central, y las variables demográficas y socioeconómicas asociadas.ResultadosEntre 2011 y 2019 se redujo la prevalencia de sobrepeso (criterios OMS) en niños de 6, 7 y 8años (−5,4, −5,7 y −5,3 puntos porcentuales, respectivamente) y niños cuyos progenitores tenían estudios superiores (−5,3 puntos porcentuales). Por renta, el sobrepeso en niños se redujo en todos los niveles de ingresos. Sin embargo, entre 2011 y 2019 se mantuvieron estables tanto la prevalencia de sobrepeso en niñas como la prevalencia de obesidad según las referencias OMS e IOTF y la de obesidad central en ambos sexos.ConclusionesLas prevalencias de sobrepeso y de obesidad en escolares de 6 a 9años en España siguen siendo altas. Entre 2011 y 2019 disminuyó la prevalencia de sobrepeso en niños de 6 a 8años y aquellos cuyos progenitores tienen estudios universitarios, mientras que la obesidad en niños, el sobrepeso y la obesidad en niñas, y la obesidad central en ambos sexos han permanecido estables. (AU)

Introduction: Childhood excess weight is a growing public health problem. The aim of this study was to assess temporal trends in the prevalence of overweight, obesity and central obesity in schoolchildren aged 6 to 9years in Spain between 2011 and 2019 based on demographic and socioeconomic characteristics.MethodologyThe analysis included data from the 2011, 2015 and 2019 rounds of the cross-sectional observational and descriptive ALADINO study in schoolchildren of both sexes aged 6 to 9years. We conducted a descriptive analysis of the trends in the prevalence of overweight and obesity (defined according to the criteria of the World Health Organization [WHO] and the International Obesity Task Force [IOTF]) and of central obesity, in addition to associated demographic and socioeconomic variables.ResultsBetween 2011 and 2019, the prevalence of overweight (WHO criteria) decreased in boys aged 6, 7 and 8years (by −5.4%, −5.7% and −5.3%, respectively) and boys whose parents had a higher educational attainment (by −5.3%). In relation to the socioeconomic level, overweight in boys declined at all income levels. However, between 2011 and 2019, both the prevalence of overweight in girls and the prevalence of obesity (applying the WHO and IOTF criteria) and the prevalence of central obesity in both sexes remained stable.ConclusionsThe prevalence of overweight and the prevalence of obesity in schoolchildren aged 6 to 9years in Spain remain high. Between 2011 and 2019, the prevalence of overweight in children aged 6 to 8years and in children whose parents had university degrees decreased, whereas obesity in boys, overweight and obesity in girls and central obesity in both sexes remained stable. (AU)

Differences in the temporal trends of childhood overweight and obesity in Spain in the 2011-2019 period by sex, age and socioeconomic level: results of the ALADINO study.

INTRODUCTION: Childhood excess weight is a growing public health problem. The aim of this study was to assess temporal trends in the prevalence of overweight, obesity and central obesity in schoolchildren aged 6-9 years in Spain between 2011 and 2019 based on demographic and socioeconomic characteristics. METHODOLOGY: The analysis included data from the 2011, 2015 and 2019 rounds of the cross-sectional observational and descriptive ALADINO study in schoolchildren of both sexes aged 6-9 years. We conducted a descriptive analysis of the trends in the prevalence of overweight and obesity (defined according to the criteria of the World Health Organization and the International Obesity Task Force) and of central obesity, in addition to associated demographic and socioeconomic variables. RESULTS: Between 2011 and 2019, the prevalence of overweight (WHO criteria) decreased in boys aged 6, 7 and 8 years (by -5.4%, -5.7% and -5.3%, respectively) and boys whose parents had a higher educational attainment (by -5.3%). In relation to the socioeconomic level, overweight in boys declined at all income levels. However, between 2011 and 2019, both the prevalence of overweight in girls and the prevalence of obesity (applying the WHO and IOTF criteria) and the prevalence of central obesity in both sexes remained stable. CONCLUSIONS: The prevalence of overweight and the prevalence of obesity in schoolchildren aged 6-9 years in Spain remain high. Between 2011 and 2019, the prevalence of overweight in children aged 6-8 years and in children whose parents had university degrees decreased, whereas obesity in boys, overweight and obesity in girls and central obesity in both sexes remained stable.

Desigualdades socioeconómicas y de género en la obesidad infantil en España / Socioeconomic and gender inequalities in childhood obesity in Spain

Introducción: La obesidad infantil se asocia inversamente con el nivel socioeconómico familiar en países desarrollados. El objetivo es evaluar la asociación entre la situación ponderal infantil y el nivel socioeconómico familiar, según características familiares, percepciones, hábitos de vida y entorno escolar. Metodología: Análisis descriptivo de la situación ponderal infantil según factores socioeconómicos familiares y variables mediadoras en el estudio ALADINO 2019, en una muestra de 16.665 escolares representativa de la población escolar de seis a nueve años en España. Resultados: La prevalencia de obesidad infantil en hogares de bajo nivel socioeconómico (26,8% niños; 20,4% niñas) era, en ambos sexos, el doble de la de los de mayor nivel (12,1% niños; 8,7% niñas). En escolares de familias de baja renta eran más frecuentes hábitos alimentarios poco saludables, el sedentarismo (principalmente en niñas) y la presencia de pantallas en la habitación (más en niños). Por el contrario, en hogares más desfavorecidos eran menos frecuentes el antecedente de lactancia materna y la práctica de actividad física (especialmente en niñas). La disponibilidad de cocina propia, actividades deportivas y gimnasio cubierto en los centros era también menos habitual para los escolares de familias de menor renta. Conclusiones: Un menor nivel socioeconómico del hogar se asocia con peores hábitos alimentarios y de actividad física y ciertas características del entorno familiar y el escolar, que a su vez median la asociación inversa que existe entre el nivel socioeconómico y la prevalencia de obesidad infantil. Las niñas realizan menos actividad física y presentan más sedentarismo, mientras que los niños tienen más acceso a pantallas. Las intervenciones para combatir la obesidad infantil deben contemplar las desigualdades identificadas. (AU)

Introduction: Childhood obesity is inversely associated with household socioeconomic status in high-income countries. Our aim was to explore the association between childhood weight status and household socioeconomic status in Spain in relation to family characteristics, perceptions and lifestyle habits and the school environment. Methods: We performed a descriptive analysis of child weight status according to family socioeconomic factors and mediating variables based on data from the ALADINO 2019 study in a sample of 16 665 schoolchildren representative of the population aged 6–9 years in Spain. Results: The prevalence of childhood obesity in households with low socioeconomic status (26.8% boys; 20.4% girls) was, in both sexes, twice as high as in those with higher socioeconomic status (12.1% boys; 8.7% girls). Unhealthy eating habits, sedentary lifestyles (mainly in girls) and the presence of screens in the bedroom (more prevalent in boys) were more frequent in school-aged children from low-income households. On the other hand, in the most disadvantaged households, a history of breastfeeding and physical activity (especially in girls) were less frequent. Similarly, schools attended by children from low-income households were less likely to have their own kitchens and indoor gymnasiums or offer sports activities. Conclusions: A lower household socioeconomic status was associated with poorer dietary and physical activity habits and certain characteristics of the family and school environments that mediate the inverse association between household socioeconomic status and the prevalence of childhood obesity. Girls were less physically active and reported more sedentary lifestyles, while boys had greater access to screens. Interventions to combat childhood obesity should address the identified inequalities. (AU)

Socioeconomic and gender inequalities in childhood obesity in Spain.

INTRODUCTION: Childhood obesity is inversely associated with household socioeconomic status in high-income countries. Our aim was to explore the association between childhood weight status and household socioeconomic status in Spain in relation to family characteristics, perceptions and lifestyle habits and the school environment. METHODS: We performed a descriptive analysis of child weight status according to family socioeconomic factors and mediating variables based on data from the ALADINO 2019 study in a sample of 16,665 schoolchildren representative of the population aged 6-9 years in Spain. RESULTS: The prevalence of childhood obesity in households with low socioeconomic status (26.8% boys; 20.4% girls) was, in both sexes, twice as high as in those with higher socioeconomic status (12.1% boys; 8.7% girls). Unhealthy eating habits, sedentary lifestyles (mainly in girls) and the presence of screens in the bedroom (more prevalent in boys) were more frequent in school-aged children from low-income households. On the other hand, in the most disadvantaged households, a history of breastfeeding and physical activity (especially in girls) were less frequent. Similarly, schools attended by children from low-income households were less likely to have their own kitchens and indoor gymnasiums or offer sports activities. CONCLUSION: A lower household socioeconomic status was associated with poorer dietary and physical activity habits and certain characteristics of the family and school environments that mediate the inverse association between household socioeconomic status and the prevalence of childhood obesity. Girls were less physically active and reported more sedentary lifestyles, while boys had greater access to screens. Interventions to combat childhood obesity should address the identified inequalities.