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The older the better: are elderly study participants more non-representative? A cross-sectional analysis of clinical trial and observational study samples
OBJECTIVE: Study participants can differ from the target population they are taken to represent. We sought to investigate whether older age magnifies such differences, examining age-trends, among study participants, in self-rated level of activity compared to others of the same age. DESIGN: Cross-se...
| Autores principales: | , , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
BMJ Publishing Group
2012
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3533104/ https://www.ncbi.nlm.nih.gov/pubmed/23242479 http://dx.doi.org/10.1136/bmjopen-2012-000833 |