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Analysis of Site-specific Data in Dental Studies

Department of Epidemiology and Biostatistics, Faculty of Dentistry, The University of Western Ontario, London, Ontario, Canada N6A 5C1

D. Banting

Faculty of Dentistry, The University of Western Ontario, London, Ontario, Canada N6A 5C1

Much attention has been given recently to issues in the statistical analysis of site data arising from clinical trials in periodontics. As pointed out by Imrey (1986) and Fleiss et al. (1987), it is unreasonable to expect sites within the same patient to respond independently, and thus conventional statistical methods are not directly applicable. In this paper we develop a procedure for comparing the percentage of sites showing a given characteristic across two or more groups of patients that accounts for this lack of independence. The procedure is a straightforward extension of the standard Pearson chi-square test. Two examples are given.

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Journal of Dental Research, Vol. 67, No. 11, 1392-1395 (1988)
DOI: 10.1177/00220345880670110601


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This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Donner, A. Articles by Banting, D. Search for Related Content PubMed PubMed Citation Articles by Donner, A. Articles by Banting, D. Social Bookmarking                         What's this?