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Table 3 Distribution of subjects according to the CDC/AAP case definition (Eke et al.2012) in total and according to age

From: Current status of periodontal disease in adults in Takahagi, Japan: a cross-sectional study

Degree of periodontitis

Age Groups (years)

P Vallue*

Total

20–34

35–44

45–54

55–64

65–74

75+

  

No periodontitis

47 (50.0)

14 (19.4)

13 (21.3)

22 (16.7)

25 (14.1)

10 (22.7)

< 0.001

131 (22.5)

Mild periodontitis

27 (28.1)

31 (43.1)

25 (41.0)

30 (22.7)

31 (17.5)

3 (6.8)

 

147 (25.3)

Moderate periodontitis

21 (21.9)

18 (25.0)

13 (21.3)

38 (28.8)

36 (20.3)

6 (13.6)

 

132 (22.7)

Severe periodotitis

1 (1.0)

9 (12.5)

10 (16.4)

42 (31.8)

85 (48.0)

25 (56.8)

 

172 (29.6)

  1. Data are presenterd as numbers (percentages)
  2. *P value for differences between groups using the X2 test