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Table 2 Comparisons of oral health status between the K6 high group and the K6 low group

From: Association between high psychological distress and poor oral health-related quality of life (OHQoL) in Japanese community-dwelling people: the Nagasaki Islands Study

 

Participants

Psychological distress status

 

Total

High K6 (≥ 5)

Low K6 (< 5)

p value

(n = 1183)

(n = 125)

(n = 1058)

Total no. of teeth, mean (SD)

23.3 (5.1)

23.0 (0.5)

23.4 (0.2)

0.46

No. of untreated dental caries, mean (SD)

0.7 (1.7)

0.7 (0.2)

0.6 (0.1)

0.60

mPPD (mm), mean (SD)

2.0 (0.6)

2.1 (0.7)

2.0 (0.6)

0.16

mCAL (mm), mean (SD)

2.4 (0.9)

2.6 (1.1)

2.4 (0.8)

0.053

Periodontal stages, n (%)

 Early stage (PPD = 4–5 mm)

348 (29)

37 (30)

311 (29)

0.96

 Advanced stage (PPD ≥ 6 mm)

246 (21)

26 (21)

220 (21)

0.998

Visit a dental within 6 months, n (%)

509 (43)

47 (38)

462 (44)

0.195

GOHAI, mean (SD)

55.9 (5.0)

52.3 (7.6)

56.4 (4.4)

< 0.0001†

  1. Chi-squared tests were used to compare the ratio of categorical variables, and t tests were used to compare the averages of continuous variables between the groups
  2. mPPD mean probing pocket depth, mCAL mean clinical attachment loss, GOHAI the General Oral Health Assessment Index
  3. *p < 0.05
  4. †p < 0.001