Examinando por Autor "Castillo-Valenzuela, Oscar"

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    Ítem
    Comportamiento alimentario, suficiencia dietaria y estado nutricional en niños entre 6 a 18 meses
    (Sociedad Chilena de Pediatría, 2021) Bustos-Arriagada, Edson; Cádiz, Marcelo; Etchegaray, Karina; Castillo-Valenzuela, Oscar
    La alimentación infantil presenta características cualitativas y cuantitativas específicas. La influencia de los padres sobre la ingesta de alimentos es crucial en el desarrollo de hábitos y un adecuado estado nutricional. Objetivo: Evaluar el comportamiento alimentario, las características dietarias y estado nutricional en niños entre 6 a 18 meses. Sujetos y Método: Estudio descriptivo de corte transversal en 199 niños. En una muestra por conveniencia se consignaron datos demográficos y antropométricos para estado nutricional, y antecedentes dietarios, mediante recordatorio de 24 h para el compor- tamiento dietario y la suficiencia alimentaria. Se aplicó t-student y ANOVA de una vía para varia- bles continuas y test chi-cuadrado para categóricas. Resultados: 54,8% mujeres. Estado nutricional: 21,1% sobrepeso y 7,6% obesidad. Un 56,8% de los niños tenían números de comidas acorde su edad. La ingesta promedio de energía fue de 652,9 ± 224,2 calorías diarias. La ingesta de energía y macro- nutrientes fue significativamente mayor en los niños que no consumían leche materna y de 12 a 18 meses. La adecuación energética, lípidos y carbohidratos en las niñas fue significativamente mayor a la de niños. Un 83,1% del consumo de alimentos fueron habituales para este grupo etario. Conclu- sión: En el comportamiento alimentario se encontró que 4 de cada 10 niños presentan números de comidas mayor al sugerido a su edad. En cuanto a la suficiencia dietaría hay una mayor ingesta en los niños con estado nutricional normal, sin LM y entre 12 y 18 meses. A pesar de la alta prevalencia de obesidad, esta fue menor a la observada a nivel nacional.
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    Ítem
    Feeding behaviour and lifestyle of children and adolescents one year after lockdown by the COVID-19 pandemic in Chile
    (MDPI, 2021-11) Bustos Arriagada, Edson; Fuentealba Urra, Sergio; Etchegaray Armijo, Karina; Quintana Aguirre, Nicolás; Castillo-Valenzuela, Oscar
    Lockdown caused by the COVID-19 pandemic may have influenced feeding behaviour and lifestyle in children and adolescents. The purpose of this study was to analyse feeding behaviour and lifestyle in children and adolescents one year after lockdown by the COVID-19 pandemic in Chile. In this cross-sectional study an online survey was implemented in 1083 parents and care- givers regarding their children’s feeding behaviour and lifestyle and sociodemographic background. The results showed that “eat breakfast daily” (89.2%), “not overnight food intake” (69.9%) and “not fast-food intake” (66.0%) were the most frequent reported feeding behaviours, particularly in pre-school children. Respondents declaring healthy feeding behaviours and lifestyle were 23.4 and 23.7%, respectively, with no significant differences by sex. In pre-school children, families with three or fewer members and parents or caregivers with an undergraduate or postgraduate degree reported a significantly better feeding behaviour and lifestyle compared to families with more than three members and parents or caregivers without an undergraduate or postgraduate degree. In conclusion, the pandemic lockdown had a negative impact in lifestyle in children and particularly in adolescents. Healthier feeding behaviour was associated with fewer family members and parents or caregivers with at least an undergraduate degree.
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    Ítem
    Vitamin D status and obesity in children from Chile
    (Springer Nature, 2021) Pérez-Bravo, Francisco; Duarte, Lissette; Arredondo-Olguín, Miguel; Iñiguez, Germán; Castillo-Valenzuela, Oscar
    BACKGROUND: Vitamin D [25(OH)D] is essential for normal bone development and maintenance. Furthermore, its deficiency has been associated with obesity, cardiovascular diseases, insulin resistance, autoimmune diseases, and certain cancers. OBJECTIVE: To determine the incidence of serum 25(OH)D deficiency (<20 ng/ml) among apparently healthy Chilean children (4–14 years old) from three Chilean geographic areas during May–September 2018. MATERIALS AND METHODS: Serum 25(OH)D levels were measured by a competitive protein-binding ELISA assay in 1134 children, and correlations between serum 25(OH)D levels, BMI, and geographic area were calculated. Individuals were grouped according to their serum 25-hydroxyvitamin D levels (ng/ml): severe deficiency: <5; moderate deficiency: 5–10.9; mild deficiency: 11–20.9; insufficiency: 21–29.9 and sufficiency: 30–100. RESULTS: We found 80.4% of children had serum 25(OH)D deficiency, with 1.7% severe, 24.6% moderate, and 54.1% mild. In the three cities, the percentage of serum 25(OH)D deficit was increased when comparing overweight or obesity with a healthy weight. Additionally, an interaction effect was observed between geographic area, nutritional status, and serum 25(OH)D levels using the factorial ANOVA test (p = 0.038). In Antofagasta, there were more overweight children and also a higher percentage of children with VitD deficiency (<30 ng/ml) compared to Santiago or Concepción. CONCLUSION: This study revealed a high prevalence of serum 25(OH)D deficiency in children between 4 and 14 years old in Chile (80.4%) during May–September 2018. Obese and overweight children had the highest prevalence of serum 25(OH)D deficiency.