Field-based random sampling without a sampling frame: control selection for a case-control study in rural Africa

Crampin, A.C. , Mwinuka, V., Malema, S.S., Glynn, J.R. and Fine, P.E.M. (2001) Field-based random sampling without a sampling frame: control selection for a case-control study in rural Africa. Transactions of the Royal Society of Tropical Medicine and Hygiene, 95(5), pp. 481-483. (doi: 10.1016/s0035-9203(01)90009-4) (PMID:11706653)

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Abstract

Selection bias, particularly of controls, is common in case-control studies and may materially affect the results. Methods of control selection should be tailored both for the risk factors and disease under investigation and for the population being studied. We present here a control selection method devised for a case-control study of tuberculosis in rural Africa (Karonga, northern Malawi) that selects an age/ sex frequency-matched random sample of the population, with a geographical distribution in proportion to the population density. We also present an audit of the selection process, and discuss the potential of this method in other settings.

Item Type:Articles
Additional Information:Until 1996 the Karonga Prevention Study was funded primarily by LEPRA (The British Leprosy Relief Association) and ILEP (The International Federation of Anti-Leprosy Organizations) with contributions from the WHO/UNDP/World Bank Special Programme for Research and Training in Tropical Diseases. Since 1996 the Wellcome Trust has been the principal funder. J.R.G. is partially supported by the British Department for International Development.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Crampin, Professor Mia
Authors: Crampin, A.C., Mwinuka, V., Malema, S.S., Glynn, J.R., and Fine, P.E.M.
College/School:College of Medical Veterinary and Life Sciences > School of Health & Wellbeing > Public Health
Journal Name:Transactions of the Royal Society of Tropical Medicine and Hygiene
Publisher:Oxford University Press
ISSN:0035-9203
ISSN (Online):1878-3503

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