Attrition and bias in the MRC cognitive function and ageing study: an epidemiological investigation

BACKGROUND: Any hypothesis in longitudinal studies may be affected by attrition and poor response rates. The MRC Cognitive Function and Ageing study (MRC CFAS) is a population based longitudinal study in five centres with identical methodology in England and Wales each recruiting approximately 2,500...

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Bibliografski detalji
Glavni autori: Matthews, Fiona E, Chatfield, Mark, Freeman, Carol, McCracken, Cherie, Brayne, Carol, CFAS, MRC
Format: Artigo
Jezik:Inglês
Izdano: BioMed Central 2004
Teme:
Research Article
Online pristup:https://ncbi.nlm.nih.gov/pmc/articles/PMC419705/
https://ncbi.nlm.nih.gov/pubmed/15113437
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/1471-2458-4-12
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