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J Occup Health year 1997 volume 39 number 2 page 92 - 94
Classification Original
Title Epidemiological Study of Periodontal Disease and White Blood Cell Count among Employees in a Company
Author Yukie Yoshida1, Masahide Imaki1, Ken Nishida1 and Seiki Tanada2
Organization 1Osaka Prefectural College of Health Science and
2Faculty of Pharmaceutical Sciences, Kinki University
Keywords Periodontal disease, Coronary heart disease, White blood cell count, CPITN
Correspondence
Abstract Epidemiological Study of Periodontal Disease and White Blood Cell Count among Employees in a Company: Yukie Yoshida, et al. Osaka Prefectural College of Health Science-The purpose of this study was to investigate the relationship between the white blood cell (WBC) count and periodontal disease as classified by the Community Periodontal Index of Treatment Needs (CPITN) in 1,241 male Japanese factory workers by determining their WBC count and the extent of their periodontal disease. The results obtained were as follows: in both smoker and non-smoker, the results of a two-way ANOVA indicated that the CPITN score 3 and 4 groups had a significantly higher WBC count than the CPITN score 0, 1 and 2 groups. The results of multiple regression analysis indicated that the WBC counts were significantly associated with age, smoking and the CPITN score. It appeared that there was a significant relationship between the WBC count and the prevalence of periodontal disease among employees in a company.