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Impact on mortality and cancer incidence rates of using random invitation from population registers for recruitment to trials
BACKGROUND: Participants in trials evaluating preventive interventions such as screening are on average healthier than the general population. To decrease this 'healthy volunteer effect' (HVE) women were randomly invited from population registers to participate in the United Kingdom Collab...
Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3058013/ https://www.ncbi.nlm.nih.gov/pubmed/21362184 http://dx.doi.org/10.1186/1745-6215-12-61 |