analysis of site specific periodontal bacteria sampling schemes. | a great deal of controversy has existed in the periodontal literature as to whether the site or the subject should be the unit of analysis. using the site as the unit of analysis assumes that observations of sites within the same subject are independent and ignores between subject variation. the purpose of this report is to evaluate the influence that the unit of analysis has on estimating the number of necessary site specific bacterial samples from each subject. the number of bacterial samples ... | 1992 | 1625150 |