نتایج جستجو برای: primary schoolchildren
تعداد نتایج: 648203 فیلتر نتایج به سال:
BACKGROUND Relationships between indoor air quality (IAQ) found in schools and the allergic and respiratory health of schoolchildren have been insufficiently explored. A survey was conducted in a large sample of classrooms of primary schools in France to provide objective assessments of IAQ to which young schoolchildren are exposed in classrooms, and to relate exposure to major air pollutants f...
Trachoma is the leading infectious cause of blindness in the world and is associated with precarious living conditions in developing countries. The aim of the present study was to evaluate the prevalence of trachoma in three municipalities of the Marajó Archipelago, located in the state of Pará, Brazil. In 2008, 2,054 schoolchildren from the public primary school system of the urban area of the...
To estimate the mumps vaccine effectiveness (VE) during a large genotype D mumps outbreak, we conducted a cross-sectional study in eight primary schools and associated households in the Netherlands. Questionnaires were used to collect information on the occurrence of mumps. Multivariate analyses were used to estimate VE. Among schoolchildren we estimated the VE against mumps. Among household co...
Intestinal parasitic infections are among the most widespread of human infections in developing countries, and children are the most vulnerable. The aim of this study was to determine the prevalence of protozoa and intestinal helminthes, as well as the risk factors of intestinal parasites in schoolchildren in Salé city, Morocco. This is a study of incidence and prevalence conducted prospectivel...
Exposure to green space has been associated with better physical and mental health. Although this exposure could also influence cognitive development in children, available epidemiological evidence on such an impact is scarce. This study aimed to assess the association between exposure to green space and measures of cognitive development in primary schoolchildren. This study was based on 2,593 ...
BACKGROUND AND OBJECTIVE Dental caries in young children is commonly untreated and represents a public health problem. Dental caries in children is reported to affect their anthropometric outcomes, but the evidence is conflicting. Some studies found no association, whereas others found that caries was associated with underweight or overweight. The objective was to assess the relationship betwee...
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This study entailed an in-depth exploration of the meanings identified by a group 105 fourth year primary schoolchildren when solving task involving partitioning. The research was based on semantic triangle consisting conceptual structure, representation systems, and sense. content children’s answers analysed qualitatively. One most prominent findings that purposes or usages were recognised mul...
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