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Objectives. To determine the proportion of primary school students who fulfill the World Health Organization (WHO) recommendations on physical activity and the factors associated with less time of moderate-intense physical activity in urban areas of three cities in Peru. Materials and methods. Cross-sectional study with a random selection of schoolchildren aged 6 to 13 from public educational institutions in urban areas of Chiclayo, Huaraz and Tarapoto. In order to measure the time and intensity of physical activity, schoolchildren were given an accelerometer for a week. Furthermore, nutritional conditions were evaluated through the calculation of their body mass index. Results. A total of 1241 schoolchildren of both sexes aged between 6 and 13 years participated. 40% of schoolchildren in Chiclayo, 56% in Tarapoto and 66% in Huaraz fulfilled the WHO recommendations to perform at least 60 minutes of moderate-intense physical activity per day. The intensity of physical activity was significantly higher in younger schoolchildren and males. It was also found that the factors associated with fewer minutes of moderate-intense physical activity per day were schoolchildren of older age, females, with an obesity condition, whose mothers had higher educational level, and lived in Chiclayo or Tarapoto (p 0.05). Conclusions. Nearly 50% of schoolchildren meet the WHO recommendation on daily physical activity, the less active groups were older schoolchildren, obese and female; therefore, actions should be focused on them to promote adequate physical activity habits.

Objetivos. Evaluar la relación entre el porcentaje de grasa corporal, el índice de masa corporal y el perímetro del abdomen en una población de escolares que viven a moderada altitud. Materiales y métodos. Se realizó un estudio transversal para el cual fueron seleccionados de forma probabilística 394 niños y 405 niñas entre 6 y 11 años de edad. Todos los escolares seleccionados son de condición socioeconómica media y pertenecen al área urbana de Arequipa, Perú, localizada a moderada altitud (2320 m de altitud). Se evaluó el porcentaje de grasa, el índice de masa corporal y el perímetro del abdomen. La correlación fue evaluada con el coeficiente de correlación de Spearman. Resultados. Se observó correlación moderada entre el porcentaje de grasa y el perímetro del abdomen en niños (0,59) y en niñas (0,68). Se obtuvieron valores inferiores entre el porcentaje de grasa y el índice de masa corporal en niños (0,56) y en niñas (0,66). Se observó asociación entre las categorías del porcentaje de grasa (%G) y el perímetro del abdomen (p0,05). Conclusiones. El perímetro del abdomen tiene una correlación moderada con el porcentaje de grasa corporal y puede ser utilizado como un indicador de adiposidad de la región central del cuerpo en niños que viven en Arequipa (Perú) a moderada altitud.Objectives. To assess the relation between the percentage of body fat, the Body Mass Index and the abdominal perimeter in a population of school students who live at a moderate altitude. Materials and methods. A cross-sectional study was conducted, for which 394 boys and 405 girls between 6 and 11 years of age were selected using a probabilistic method. All the school students chosen were middle class children who lived in the urban area of Arequipa, Peru, located at a moderate altitude (2320m above sea level). The percentage of fat, the Body Mass Index and the abdominal perimeter were assessed. Results. There was a moderate correlation between the percentage of fat and the abdominal perimeter in boys (0.59) and girls (0.68). Lower figures were obtained between the percentage of fat and the Body Mass Index in boys (0.56) and girls (0.66). A connection among the categories of fat percentage (%F) and the abdominal perimeter (p0.05). Conclusions. The abdominal perimeter has a moderate correlation with the percentage of body fat and can be used as an indicator of adiposity in the mid-section of the body of children who live in Arequipa (Peru) at a moderate altitude.

Objetivo: Determinar el nivel de conocimientos sobre el VIH/SIDA y las prácticas sexuales de los escolares de 14 a 17 años de la ciudad de Tacna, Perú. Materiales y métodos: Estudio transversal realizado entre septiembre y noviembre del 2004, se realizó un muestreo probabilística bietápico por conglomerados en instituciones educativas nacionales y privadas. Se incluyeron 399 escolares que respondieron a una encuesta autoaplicada, el nivel de conocimientos fue clasificado en inadecuado, regular y adecuado según el puntaje obtenido. Se establecieron las diferencias usando chi2 y U de Mann-Withney según correspondía. Resultados: El nivel de conocimiento fue regular para la mayoría de adolescentes (46,4%), los varones tuvieron mayor puntaje que las mujeres (p

Objectives. To assess the relation between the percentage of body fat, the Body Mass Index and the abdominal perimeter in a population of school students who live at a moderate altitude. Materials and methods. A cross-sectional study was conducted, for which 394 boys and 405 girls between 6 and 11 years of age were selected using a probabilistic method. All the school students chosen were middle class children who lived in the urban area of Arequipa, Peru, located at a moderate altitude (2320m above sea level). The percentage of fat, the Body Mass Index and the abdominal perimeter were assessed. Results. There was a moderate correlation between the percentage of fat and the abdominal perimeter in boys (0.59) and girls (0.68). Lower figures were obtained between the percentage of fat and the Body Mass Index in boys (0.56) and girls (0.66). A connection among the categories of fat percentage (%F) and the abdominal perimeter (p<0.05) was observed; yet, there was no connection between the %F and the Body Mass Index (p>0.05). Conclusions. The abdominal perimeter has a moderate correlation with the percentage of body fat and can be used as an indicator of adiposity in the mid-section of the body of children who live in Arequipa (Peru) at a moderate altitude. [ABSTRACT FROM AUTHOR]

Objectives: To determine fasciolasis seroprevalence in high school children and cattle in Huancavelica Province and to describe children's perception of the disease. Materials and methods: The study was performed in different ecological niches and in places whose altitude was between 2000 and 5000 meters above sea level. A seroepidemiological survey in 842 high school children from randomly chosen public schools, an this instrument was also performed in 532 cattle randomly chosen belonging to high school children's families. In both cases FAS2-ELISA test was performed. Data analysis was performed according to specific areas (urban or rural) using SPSS V. 11 software, considering p<0.05 as statistically significant. Results: The tests were positive in 33 highschool children (2,6% in the urban areas and 4,9% in rural areas, p>0.05), and in 123 cattle (23,1%). Izcuchaca and Palca districts had >10% seropositive high school children. There was no association between infection in high school children and animals. 45% of high school children reported having knowledge of the disease (28% in urban areas and 56,5% in rural areas, p<0.01); highschool children from the rural areas had more correct answers in the survey compared to those of children from urban areas. Knowledge about liver damage by fasciolasis was more frequent compared to knowledge about its transmission and prevention. Conclusions: Izcuchaca and Palca districts are hyperendemic for human fasciolasis in Huancavelica province. Because of the clinical importance of the aforementioned disease, strong educational intervention is necessary with emphasis in prevention, particularly in urban areas. [ABSTRACT FROM AUTHOR]

Determinar la prevalencia y factores asociados al sobrepeso y obesidad en escolares peruanos. Métodos: Estudio transversal durante el 2013-2014. El muestreo probabilístico, estratificado multietápico. La muestra incluyó 1191 conglomerados con 7914 viviendas (área urbana: 4842 y rural: 3072) distribuidas en el Perú. Se evalúo 2801 escolares entre 5 a 13 años. Se empleó el Z score del índice de masa corporal (ZIMC) según OMS. Se consideró sobrepeso (ZIMC>1 y =2) y obesidad (ZIMC>2). El procesamiento se realizó mediante muestras complejas y se ajustó por factor de ponderación. Se calcularon porcentajes y regresión logística. Resultados: El 18,1% presentaron sobrepeso y 14,1% obesidad. El sobrepeso predominó en los varones (18,7%), edad de 8 a 10 años (19,6%), no pobres (21,2%), zona urbana (21,6%), Lima Metropolitana (22,8%) y Costa (22,7%). El sobrepeso se asocia a la no pobreza (OR=1,9), área urbana (OR=1,7), Lima Metropolitana (OR=1,9) y Costa (OR=1,6). La obesidad predominó en varones (19,1%), edad de 8 a 10 años (17,9%), no pobres (18,5%), área urbana (20,2%), Lima Metropolitana (28,0%) y Costa (18,2%). La obesidad se asocia al sexo masculino (OR=3,1), nivel educativo secundario (OR=1,8) o superior (OR=2,5) del jefe del hogar, no pobre (OR=9,2), área urbana (OR=3,4), Lima Metropolitana (OR=4,8) y Costa (OR=2,9). El sobrepeso fue más prevalente en Tacna (34,7%), Moquegua (31,0%), La Libertad (27,0%), Callao (26,6%) y Lambayeque (23,6%). La mayor prevalencia de obesidad se presentó en Lima (27,5%), Madre de Dios (26,8%), Callao (26,4%), La Libertad (22,4%) y Tacna (20,8%). Conclusiones: La prevalencia de obesidad y sobrepeso es moderada. Residir en el área urbana, Lima Metropolitana, costa y no pobre se asocian al sobrepeso. El sexo masculino, no pobre, mayor nivel educativo del jefe del hogar, residir en área urbana, Lima Metropolitana y costa se asocian a la obesidad en escolares. [ABSTRACT FROM AUTHOR]