Chapter

14. Cohort studies

Michael L. Burr

in Design Concepts in Nutritional Epidemiology

Second edition

Published in print April 1997 | ISBN: 9780192627391
Published online September 2009 | e-ISBN: 9780191723704 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780192627391.003.0014
14. Cohort studies

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Cohort studies follow a group of individuals over time to identify changes in status (such as disease or mortality) and relate these to observations made at baseline. They can also be carried out where observations on a group of individuals have been collected in the past and can be related to their current status. This chapter summarizes the strengths and weaknesses of cohort studies, and looks in detail at some of the practical issues in their implementation. Their implementation is illustrated using studies in both infancy and childhood and in middle-aged adults and the elderly. The issue of confounding is discussed. Details of study design are summarized in a checklist for planning a cohort study, and their statistical analysis considered in detail.

Keywords: cohort study; hypothesis testing; cases; controls; confounding; statistical techniques

Chapter.  7033 words. 

Subjects: Public Health and Epidemiology

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