Chapter

Cohort studis

Alvaro Muñoz and F. Javier Nieto

in Oxford Textbook of Public Health

Fifth edition

Published on behalf of Oxford University Press

Published in print September 2009 | ISBN: 9780199218707
Published online March 2011 | e-ISBN: 9780199609673 | DOI: http://dx.doi.org/10.1093/med/9780199218707.003.0031

Series: Oxford Textbooks

Cohort studis

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Cohort studies constitute one of the basic types of designs in epidemiologic research. The key element of cohort studies is time. Specifically, a cohort (i.e. group of individuals) who at enrolment is free from the disease (i.e. outcome) whose natural history is of interest and who have heterogeneous profiles of putative risk factors (whose simplest form is as exposed or unexposed) is followed over time. The central aim of this type of study is to determine the occurrence of an event of interest (e.g. disease, death) and to characterize its heterogeneity according to constellations of risk factors.

Chapter.  16929 words.  Illustrated.

Subjects: Public Health and Epidemiology ; Medical Statistics and Methodology ; Public Health

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