Smith, A.G. orcid.org/0000-0002-1111-966X, Roman, E. orcid.org/0000-0001-7603-3704, Fear, N.T. et al. (1 more author) (2004) Representativeness of samples from general practice lists in epidemiological studies: case-control study. BMJ. p. 932. ISSN 1756-1833
Abstract
Ethical constraints often prevent epidemiological studies from evaluating the impact of non-participation. Particular problems may arise when subjects fail to respond to an approach by researchers or when they cannot be contacted because of inaccurate contact details or a doctor's refusal to give permission for their patient to be approached. If these subjects differ from those subjects who agree or decline to participate then the validity and generalisability of the study may be compromised. We investigated these issues in a case-control study of acute leukaemia in England.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2004 BMJ Publishing Group. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Health Sciences (York) |
Depositing User: | Repository Officer |
Date Deposited: | 28 Nov 2008 11:31 |
Last Modified: | 16 Oct 2024 11:53 |
Published Version: | https://doi.org/10.1136/bmj.38029.672662.AE |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1136/bmj.38029.672662.AE |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:4907 |