Evaluación de una intervención educativa para mejorar el consumo de frutas, vegetales y la actividad física de docentes en tres centros educativos públicos en Costa Rica / Evaluation of an educational intervention to improve teachers' fruit and vegetable intake and physical activity practice in three public schools in Costa Rica

Resumen: Introducción: El modelo Póngale Vida ® para la prevención de la obesidad infantil reconoce a docentes de las escuelas como actores clave para esta labor, pero para ello se requiere fortalecer los conocimientos y las prácticas para la promoción de la alimentación saludable y la actividad física de los escolares. Objetivo: Evaluar los resultados de la intervención educativa para mejorar la autoeficacia en consumo de frutas y vegetales y en actividad física en docentes de tres centros educativos públicos urbanos de Costa Rica. Metodología: Se aplicó y evaluó la propuesta educativa de Jara y Rivera (2011) con 70 docentes. Hubo evaluaciones antes y después de la aplicación de la intervención. Las variables evaluadas fueron demográficas, de estilo de vida y medición de la autoeficacia para actividad física y consumo de frutas y vegetales, valoraciones bioquímicas y antropométricas. A través de grupos focales, se identificó tanto facilitadores como barreras a nivel personal, familiar y laboral. Resultados: Posterior a la intervención, casi 25 % de docentes incrementó la práctica de actividad física y la autoeficacia para las prácticas de actividad física y consumo de frutas y vegetales. Las barreras identificadas fueron la doble carga de trabajo asociada al rol de género femenino, creencias limitantes y la falta de urgencia para la prevención de enfermedades. Conclusiones: La propuesta educativa favoreció el aumento de la autoeficacia en el consumo de frutas y vegetales, así como la práctica de actividad física de la población docente.

Abstract: Introduction: The Póngale Vida ® model for the prevention of childhood obesity recognizes schoolteachers as key actors in this work, but this requires strengthening their knowledge and practices to promote healthy eating and physical activity for school children. Objective: To evaluate an educational intervention to increase teacher's self-efficacy for fruit and vegetable consumption and physical activity, within three public schools in Costa Rica. Methods: Jara and Rivera's educational proposal for intervention (2011) was implemented and evaluated with 70 teachers. There were evaluations before and after the intervention, it had demographic characteristics, lifestyle variables, self-efficacy measurements for physical activity and fruit and vegetables consumption; also, biochemical and anthropometric measures. Focus groups were used to identify facilitators and barriers at personal, family and work levels. Results: After the intervention, almost 25% of teachers increased their physical activity practices, as well as self efficacy for physical activity practice and fruits and vegetables consumption. The main barriers were a double work burden linked with feminine gender roles, limiting beliefs, and, lack of urgency in preventing diseases. Conclusions: The educational intervention contributed in increasing self-efficacy regarding eating fruit and vegetables and the practice of physical activity of participating teachers.

Condición nutricional y momentos de consumo de alimentos de escolares en centros educativos públicos intervenidos por el Modelo Póngale Vida® en Santo Domingo de Heredia, Costa Rica / Nutritional condition and moments of food consumption of schoolchildren in public schools intervened by the Póngale Vida® Model in Santo Domingo de Heredia, Costa Rica

Resumen: El objetivo del estudio fue describir cambios en condición nutricional y momentos de consumo de escolares en el contexto de la intervención escolar-comunitaria del Modelo Póngale Vida®. Se analizan los datos antropométricos y de prácticas alimentarias de 348 niños y niñas escolares matriculados en dos centros educativos públicos del cantón de Santo Domingo de Heredia. Fueron evaluados en los tres años de intervención (2015-2017) y sus datos fueron recolectados al inicio y final del ciclo lectivo. La prevalencia del exceso de peso en los escolares fue en el 2015 de 39.1 %, para el 2016 de 40 % y para 2017 el porcentaje de exceso de peso disminuye hasta un 38.8 %. Los valores del puntaje de Z para IMC de los escolares muestran una diferencia de 0.2 en niñas y 0.1 en niños, entre el 2015 y 2017. Estos cambios están asociados a la disminución del porcentaje de estudiantes que realizan doble desayuno, es decir, que hacen esa comida en casa y en el centro educativo. No obstante, la reducción del segundo almuerzo en casa fue la única variable significativa (p=0.005). El Modelo Póngale Vida logró una reducción en los momentos de consumo de alimentos de los escolares, que se manifestó en una reducción del porcentaje de exceso de peso. El proceso de cambio de conducta de los escolares es lento y se podría requerir una de intervención más larga y sostenida en el tiempo para incidir en las practicas alimentarias asociadas con el exceso de peso en el escenario escolar de forma permanente.

Abstract: The aim of the study was to describe changes in nutritional condition and food consumption times in schoolchildren in the context of the school-community intervention of the Póngale Vida® Model. Anthropometric data and food practices were analyzed from 348 school children enrolled in two public schools at Santo Domingo County ,Heredia, who were evaluated during a three years of intervention ( 2015-2017), and the data were collected at the beginning and the end of the school year. The prevalence of excess of weight was 39.1% in 2015, 40% in 2016, and 38.4% in 2017. The values of the Z score for BMI of school children showed a difference of 0.2 in girls and 0.1 in boys, between 2015 and 2017. These changes are associated with the decrease in the percentage of students who eat double breakfast, at home and at the school, with the non-repetition of lunch, in addition to reducing the number of schoolchildren who bring money to buy at the school canteen. However, having lunch at home again was the only one statistically significant (p =0.005).The Póngale Vida Model achieved a reduction in the moments of food consumption of schoolchildren that manifested itself in a reduction in the percentage of excess weight. The process of behavior change in schoolchildren is slow, and a longer intervention may be required to sustained over time behavior changes and to influence the eating practices associated with excess weight on the school setting.

Análisis de la canasta básica alimentaria de Costa Rica: oportunidades desde la alimentación y nutrición / Analysis of the Costa Rican Basic Food Basket: Opportunities for improving Feeding and Nutrition

Resumen: Introducción: La canasta básica alimentaria (CBA) es un conjunto de alimentos y bebidas, que se elabora a partir del consumo reportado por los costarricenses y considera tres criterios fundamentales: universalidad, aporte energético y porcentaje del gasto. Objetivo: Identificar la congruencia de la estructura de la CBA actual, con el derecho humano a la alimentación de la población costarricense. Metodología: A partir de la estructura de la CBA urbana actual, se compararon las cantidades de alimentos allí sugeridas con las recomendaciones de las Guías Alimentarias para Costa Rica. Se comparó el perfil de energía y nutrientes contra las recomendaciones dietéticas diarias. Se realizó una recreación de las cantidades de alimentos de la CBA para un día. Se realizaron modificaciones para una CBA sugerida con un mejor perfil nutricional y se costeó para comparar el costo de la CBA sugerida con la CBA actual. Resultados y discusión: Se incorporan en la CBA sugerida 21 alimentos, se eliminan seis, se aumenta la cantidad sugerida de dos y se disminuye la cantidad sugerida de uno. Se logra con ello aumentar el aporte de fibra dietética, calcio, magnesio, potasio, zinc, vitaminas C, E y K y reducir la cantidad de azúcar total, azúcar agregada, sodio y colesterol. Con estos cambios, el costo de la CBA sugerida se reduce ligeramente Conclusiones: Se necesita contemplar en la CBA otros aspectos nutricionales, además del aporte energético de los alimentos, como el aporte de los micronutrientes, los cuales son esenciales para la prevención y el tratamiento de enfermedades crónico-degenerativas, que son uno de los principales problemas de salud que aqueja la población en la actualidad. Por lo tanto, la CBA debe ser replanteada para ofrecer un mínimo alimentario congruente, de manera que se estimule y favorezca una alimentación balanceada, variada y adecuada para las necesidades nutricionales de la población en Costa Rica

Abstract: Introduction: The Basic Food Basket (CBA) consists of a list of foods and beverages that represent current food habits in Costa Rica. Criteria for including an item in the CBA are universality, energy and protein contribution and percentage of total expenditure on food. The objective of this study is to demonstrate that the inclusion of nutritional criteria can improve the structure of the current CBA, without increasing cost and contribute to a greater congruence with the human right to food. Methodology: The quantities of foods included in the current urban CBA were compared with the Food Guideline recommendations and the nutritional content of foods in the CBA was compared with the daily nutrient recommendations. Suggested modifications were made so that the CBA has a better nutritional profile and its cost calculated to see the impact at the economic level. A recreation of the amounts of CBA food for one day was performed. Results and discussion: 21 additional foods were incorporated into the suggested CBA, six were eliminated, two foods were increased in quantity and in one quantity was decreased. It is possible to increase the contribution of dietary fiber, calcium, magnesium, potassium, zinc, vitamins C, E and K and reduce the contribution of total sugar, added sugar, sodium and cholesterol without increasing cost; in fact the cost of the modified CBA is slightly reduced. Conclusions: It is possible to include additional nutritional criteria such as micronutrient content in the formulation of the CBA without increasing cost. The structure of the CBA should be reviewed to offer a more adequate, balanced, and varied diet that responds to the current nutritional needs of the population in Costa Rica.

Impact evaluation of a healthy lifestyle intervention to reduce cardiovascular disease risk in health centers in San José, Costa Rica and Chiapas, Mexico.

BACKGROUND: Previous healthy lifestyle interventions based on the Salud para Su Corazón curriculum for Latinos in the United States, and a pilot study in Guatemala, demonstrated improvements in patient knowledge, behavior, and clinical outcomes for adults with hypertension. This article describes the implementation of a healthy lifestyle group education intervention at the primary care health center level in the capital cities of Costa Rica and Chiapas, Mexico for patients with hypertension and/or type 2 diabetes and presents impact evaluation results. METHODS: Six group education sessions were offered to participants at intervention health centers from November 2011 to December 2012 and participants were followed up for 8 months. The study used a prospective, longitudinal, nonequivalent pretest-posttest comparison group design, and was conducted in parallel in the two countries. Cognitive and behavioral outcome measures were knowledge, self-efficacy, stage-of-change, dietary behavior and physical activity. Clinical outcomes were: body mass index, systolic and diastolic blood pressure, and fasting blood glucose. Group by time differences were assessed using generalized estimating equation models, and a dose-response analysis was conducted for the intervention group. RESULTS: The average number of group education sessions attended in Chiapas was 4 (SD: 2.2) and in Costa Rica, 1.8 (SD: 2.0). In both settings, participation in the study declined by 8-month follow-up. In Costa Rica, intervention group participants showed significant improvements in systolic and diastolic blood pressure and borderline significant improvement for fasting glucose, and significant improvement in the stages-of-change measure vs. the comparison group. In Chiapas, the intervention group showed significant improvement in the stages-of-change measure in relation to the comparison group. Significant improvements were not observed for knowledge, self-efficacy, dietary behavior or physical activity. In Chiapas only, a significant dose-response relationship was observed for systolic and diastolic blood pressure. CONCLUSION: Group education interventions at health centers have the potential to improve stage-of-change activation, and may also improve clinical outcomes. In the future, it will be essential to dedicate resources to understand ways to reach a representative group of the patient population, tailor the intervention so that patients are engaged to participate, and consider the broader family and community context that influences patients' capacity to manage their condition.

Barriers and facilitating factors for disease self-management: a qualitative analysis of perceptions of patients receiving care for type 2 diabetes and/or hypertension in San José, Costa Rica and Tuxtla Gutiérrez, Mexico.

BACKGROUND: The burden of cardiovascular disease is growing in the Mesoamerican region. Patients' disease self-management is an important contributor to control of cardiovascular disease. Few studies have explored factors that facilitate and inhibit disease self-management in patients with type 2 diabetes and hypertension in urban settings in the region. This article presents patients' perceptions of barriers and facilitating factors to disease self-management, and offers considerations for health care professionals in how to support them. METHODS: In 2011, 12 focus groups were conducted with a total of 70 adults with type 2 diabetes and/or hypertension who attended urban public health centers in San José, Costa Rica and Tuxtla Gutiérrez, Chiapas, Mexico. Focus group discussions were transcribed and coded using a content analysis approach to identify themes. Themes were organized using the trans-theoretical model, and other themes that transcend the individual level were also considered. RESULTS: Patients were at different stages in their readiness-to-change, and barriers and facilitating factors are presented for each stage. Barriers to disease self-management included: not accepting the disease, lack of information about symptoms, vertical communication between providers and patients, difficulty negotiating work and health care commitments, perception of healthy food as expensive or not filling, difficulty adhering to treatment and weight loss plans, additional health complications, and health care becoming monotonous. Factors facilitating disease self-management included: a family member's positive experience, sense of urgency, accessible health care services and guidance from providers, inclusive communication, and family and community support.Financial difficulty, gender roles, differences by disease type, faith, and implications for families and their support were identified as cross-cutting themes that may add an additional layer of complexity to disease management at any stage. These factors also relate to the broader family and societal context in which patients live. CONCLUSIONS: People living with type 2 diabetes and hypertension present different barriers and facilitating factors for disease self-management, in part based on their readiness-to-change and also due to the broader context in which they live. Primary care providers can work with individuals to support self-management taking into consideration these different factors and the unique situation of each patient.