Show Summary Details

p. 737. Investigating people’s past experienceslocked

  • Rodolfo Saracci

Abstract

The selection of cases is the starting point of case-control studies and obeys the fundamental and rather obvious principle that they should come from the same study population as the cases. Ascertaining exposure very often involves interviewing cases and controls about a variety of factors to which they may have been exposed, ranging from smoking habits through diet to medical history, depending on the purpose of the study. ‘Investigating other people's past experiences’ points out that whereas the prospective study observes events in their natural course from causes to possible effects, a case-control study observes the events in a reverse sequence, from effects to possible causes.

Access to the complete content on Very Short Introductions online requires a subscription or purchase. Public users are able to search the site and view the abstracts and keywords for each book and chapter without a subscription.

Please subscribe or login to access full text content.

If you have purchased a print title that contains an access token, please see the token for information about how to register your code.

For questions on access or troubleshooting, please check our FAQs, and if you can't find the answer there, please contact us.