Gagnot G, Bansard J Y, Kerbaol M, Yardin M
J Biol Buccale. 1977 Mar;5(1):85-91.
A global analysis method (the factorial analysis of correspondances) was applied to a study of oral hygiene. This first trial showed that this method of analysis is valid in this field confirming the relationship "absence of hygiene"--"periodontal disease" and the antogonism between the presence of caries and periodontal diseases in young subjects on military duty.
一种全局分析方法（对应因子分析）被应用于口腔卫生研究。首次试验表明，这种分析方法在该领域是有效的，证实了“缺乏卫生”与“牙周疾病”之间的关系，以及年轻现役军人中龋齿与牙周疾病存在的拮抗关系。
