Citation

Kresnow M, Powell KE, Webb KB, Mercy JA, Potter LB, Simon TA, Ikeda RM, Frankowski R. Stat. Med. 2001; 20(9-10): 1479-1485.

Affiliation

Office of Statistics and Programming, National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, 4770 Buford Highway, MS K-59, Atlanta, Georgia 30341-3724, USA. mkresnow@cdc.gov

Copyright

(Copyright © 2001, John Wiley and Sons)

DOI

10.1002/sim.684

PMID

11343368

Abstract

In case-control studies, determination of alcohol consumption by cases immediately prior to the injury event is often conceptually straightforward. However, determination of consumption status by controls is difficult because they lack a reference point, especially when cases and controls are not individually matched. We describe a method of assigning alcohol consumption status to controls using a 24-hour drinking history, the distribution in time of case events, and the random assignment of a specific time period to each control subject. This methodology offers a practical approach for determining alcohol consumption status among control subjects immediately prior to a case event, when controls lack a reference point and have not been individually matched to cases.

Language: en