Browsing by Author "Ratner, Rinat"

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    Impacto de una intervención en alimentación y actividad física sobre la prevalencia de obesidad en escolares
    (Grupo Arán, 2013) Ratner, Rinat; Duran, Samuel; Garrido, María; Balmaceda, Sebastián; Jadue, Liliana; Atalah, Eduardo
    In Chile childhood obesity is a growing public health problem. Intervention programs within schools have shown variable results, with better impacts when multiple aspects are involved and included the entire educational community. The objective of the study was to evaluate the effect on the nutritional status of children in intervention schools within 2 years of duration (Healthy Living Program). The sample included 2,527 students first through fourth grade of 3 counties of Santiago. The students were intervened and followed for a period of two years in their food and nutrition habits, physical activity and self-care practices, by a team of nutritionists and physical education teachers. Weight and height were measured at start of program, end of the first and second years of intervention, under standardized conditions and calculated the Z score of BMI and nutritional status according to the WHO reference 2007. At the end of the second year 1,453 children were reassessed. There was a significant decrease in BMI Z score in obese children (-0.3 SD) and obesity decreased from 21.8% to 18.4% at the end of the intervention. 75% of schoolchildren obese and 60.5% overweight decreased their BMI Z score, reduction that was greater in men and students in the upper grades. 51.9% of normal weight children increased their BMI Z-score age, although most less than 0.5 SD. The intervention in education, nutrition and physical activity among schoolchildren in three communes of Greater Santiago was effective in reducing the prevalence of obesity (-3.4 percentage points). The big challenge is to find mechanisms to give continuity to the program and evaluate long-term effects.
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    Propuesta de un nuevo índice de calidad global de la alimentación
    (Sociedad Chilena de Nutrición, Bromatología y Toxicología, 2017) Ratner, Rinat; Hernández, Paulina; Martel, Jorge; Atalah, Eduardo;
    Various methodologies have been proposed to assess the overall quality of diet, but there are no specific indicators in Latin America. The purpose of this work was to propose a Healthy Eating Index according to the recommendations of the Chilean Ministry of Health and to validate their application in a national sample of students. A food frequency survey with 12 variables was used: 5 healthy foods, 4 unhealthy foods and 3 main meals. Each variable was rated from 1 (less healthy) to 10 (recommended by the Ministry of Health). Total scores were used to classify diets as healthy (90-120), in need of changes (60-89) and unhealthy (<60). The questionnaire was administered to 9,452 university students and was evaluated according to sex, age and nutritional status. The median score was 65.5 (54.5 to 77.9: p25-75) and 9.2% had healthy diets, 55.3% needed changes and 35.5% had unhealthy diets, without differences by sex and modest differences by nutritional status (p< 0.05). Younger age related to an unhealthy diet (p< 0.005). The instrument is easily applied by health professionals and can be adapted to the recommendations of each country. There are serious deficiencies in diet quality among college students, regardless of their nutritional status and sex.
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    Revista Confluencia Volumen 5, número 2, 2022 (Edición completa)
    (2022) Facultad de Medicina, Clínica Alemana de Santiago - Universidad del Desarrollo; Ronco, Ricardo; Jadue, Liliana; Pérez, Claudia; López, María Angélica; Molina, Jorge; Castillo, Marcela; Ratner, Rinat; Mayol, Mimy; Ocaranza, Danilo; Parra, María Adriana; Villarroel, Vivian; Fuentes, Daniela; Lizana, Marcelo
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    Revista Confluencia Volumen 6, número 1, 2023 (Edición completa)
    (2023) Facultad de Medicina, Clínica Alemana de Santiago - Universidad del Desarrollo; Castillo, Marcela; Jadue, Liliana; Pérez, Claudia; López, María Angélica; Molina, Jorge; Jadue, Mariana; Ratner, Rinat; Mayol, Mimy; Ocaranza, Danilo; Parra, María Adriana; Villarroel, Vivian; Fuentes, Daniela; Lizana, Marcelo
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    Revista Confluencia Volumen 6, número 2, 2023 (Edición completa)
    (2023) Castillo, Marcela; Jadue, Liliana; Pérez, Claudia; López, María Angélica; Molina, Jorge; Jadue, Mariana; Ratner, Rinat; Mayol, Mimy; Ocaranza, Danilo; Parra, María Adriana; Villarroel, Vivian; Fuentes, Daniela; Ovalle, Marcelo; Facultad de Medicina, Clínica Alemana de Santiago - Universidad del Desarrollo

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