Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by VALL-MAYANS, M
Right arrow Articles by HALL, A J
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by VALL-MAYANS, M
Right arrow Articles by HALL, A J
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© 1991 Oxford University Press

research-article

Accuracy of Answers Obtained Using a One-Year Recall Period Compared to a Series of Fortnightly Recalls

M VALL-MAYANS, H M INSKIP and A J HALL

International Agency for Research on Cancer, c/o MRC Laboratories, Fajara PO Box 273, Banjul, The Gambia.

In a study to examine factors influencing transmission of hepatitis B virus, a comparison has been made between answers obtained about events occurring over a one-year period and the summation of the results from fortnightlky questionnaires administered over the same period. Complete data were available for 532 children and the results showed that for an estimate of rates within the population, the results from both methods were similer. At the individual level, however, the differences between the one-year recall and fortnightly questions were large. Thus it appears that for population estimates longer recall periods may be satisfactory, but in any study requiring accurate data at the individual level shorter recall periods are required.

Revised 1 March 1991


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.