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The impact of attrition on the representativeness of cohort studies of older people
BACKGROUND: There are well-established risk factors, such as lower education, for attrition of study participants. Consequently, the representativeness of the cohort in a longitudinal study may deteriorate over time. Death is a common form of attrition in cohort studies of older people. The aim of t...
| Autores principales: | , , |
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
BioMed Central
2010
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2927605/ https://www.ncbi.nlm.nih.gov/pubmed/20687909 http://dx.doi.org/10.1186/1471-2288-10-71 |