The choice of computational unit in the statistical analysis of unbalanced clinical trials.
作者信息
Osborn J
机构信息
London School of Hygiene and Tropical Medicine, UK.
出版信息
J Clin Periodontol. 1987 Oct;14(9):519-23. doi: 10.1111/j.1600-051x.1987.tb00993.x.
Abstract
Clinical periodontal research often involves the treatment of patients who have disease at several sites in the mouth. Should the units of analysis be the patients, the sites, or a combination of both? These strategies are explored and a worked example given.
摘要
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