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The impact of attrition on the representativeness of cohort studies of older people
<p>Abstract</p> <p>Background</p> <p>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 at...
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| Main Authors: | , , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
BMC
2010-08-01
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| Colecção: | BMC Medical Research Methodology |
| Acesso em linha: | http://www.biomedcentral.com/1471-2288/10/71 |
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