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Comparison of sample characteristics in two pregnancy cohorts: community-based versus population-based recruitment methods
BACKGROUND: One of the biggest challenges for population health studies is the recruitment of participants. Questions that investigators have asked are “who volunteers for studies?” and “does recruitment method influence characteristics of the samples?” The purpose of this paper was to compare sampl...
| Autores principales: | , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
BioMed Central
2013
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4029181/ https://www.ncbi.nlm.nih.gov/pubmed/24314150 http://dx.doi.org/10.1186/1471-2288-13-149 |