Epidemiologic inquiry: observational studies

Zweig, S.C.; Blake, R.L.

Family Medicine 20(4): 289-294

1988


ISSN/ISBN: 0742-3225
PMID: 3060390
Document Number: 317750
A major objective of epidemiologic investigation is to determine whether or not an association between an exposure and a condition exists in a human population. The presence of such an association cna be explored using three distinct strategies, the cohort, the case-control, and the cross-sectional approaches. This paper describes each of these research designs and discusses their advantages and disadvantages.

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