International Journal of Dentistry / 2009 / Article / Tab 2

Research Article

Determination of Cortisol and Dehydroepiandrosterone Levels in Saliva for Screening of Periodontitis in Older Japanese Adults

Table 2

Subject characteristics by smoking status based on CAL levels.

Number of teeth with PD    mm*
Never-smokersSmokers
CharacteristicsNoneLowHigh valueNoneLowHigh value

Number673214261814

Age in years
 Mean68.268.170.1 .28766.569.769.8 .034
  (SD)(4.5)(3.9)(3.8)(4.1)(4.7)(5.4)

Number of teeth
 Mean23.422.219.4 .10123.923.320.3 .222
  (SD)(6.5)(6.7)(5.2)(6.6)(5.1)(7.5)

Site with BOP
 Mean3.05.95.4.0143.83.64.0.972
  (SD)(4.2)(5.5)(6.3)(5.1)(3.4)(5.3)

Sex
 Male12 (18)9 (28) 8 (57).00925 (96)17 (94)14 (100).686

Social class
 Non-workers61 (91)26 (81)12 (86).61425 (96)16 (89)14 (100).601

Medication38 (56)15 (49) 7 (50).63613 (50)11 (61) 6 (64).623

Use of interdental brush
 Yes 34 (51)20 (63) 6 (43).39210 (39) 8 (44) 9 (64).289

Dental visit in past 12 months
 Yes33 (49)21 (66) 9 (64).24416 (62)10 (56)6 (43).526

Frequency of tooth brushing (per day)
1 time6 (9)3 (9) 3 (21).366 6 (23)10 (56)6 (43).289
 2 times40 (60)21 (66) 5 (36)13 (50) 5 (28)5 (36)
3 times21 (31)8 (25) 6 (43) 7 (27) 3 (17)3 (21)

Self-rated health status
 Very good22 (33)14 (44) 7 (50).70412 (46)8 (44) 4 (29).037
 Good39 (58)15 (47) 6 (43)14 (54)10 (56) 7 (50)
 Moderate6 (9) 3 (9)1 (7)0 (0)0 (0) 3 (21)

*Defined by the number of teeth (no teeth, less than three teeth, three or more teeth) with PD    mm. Categorical variables indicate the number of subjects (%). Differences between groups were tested using a chi-square test for categorical variables and ANOVA for continuous variables. CAL: clinical attachment level (mm). BOP: bleeding on probing.

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