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Main characteristics and participation rate of European adolescents included in the HELENA study
BACKGROUND: Participation rate and response rate are key issues in a cross sectional large-scale epidemiological study. The objective of this paper is to describe the study population and to evaluate participation and response rate as well as the key nutritional status variables in male and female a...
Autores principales: | , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3490738/ https://www.ncbi.nlm.nih.gov/pubmed/22958310 http://dx.doi.org/10.1186/0778-7367-70-14 |