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Table 1 Characteristics of participants (n = 1901)

From: Associations among oral health-related quality of life, subjective symptoms, clinical status, and self-rated oral health in Japanese university students: a cross-sectional study

Variable

  

Male

 

1,095 (57.6)a

Self-rated oral health

Very good

218 (11.5)

 

Good

481 (25.3)

 

Fair

844 (44.4)

 

Poor

312 (16.4)

 

Very poor

46 (2.4)

Oral health behavior

  

 Regular check-up

Yes

318 (16.7)

 Use of floss

Yes

243 (12.8)

 Daily frequency of tooth-brushing

1 time

254 (13.4)

 

2 times

1,402 (73.8)

 

3 times or more

245 (12.9)

Subjective oral symptom

  

 Oral pain

Yes

53 (2.8)

 Recurrent aphthous stomatitis

Yes

404 (21.3)

 Temporomandibular disorders

  

  Pain in temporomandibular joint

Never

1,490 (78.4)

 

Rarely

251 (13.2)

 

Sometimes

132 (6.9)

 

Frequency

28 (1.5)

  Clicking

Never

1,072 (56.4)

 

Rarely

348 (18.3)

 

Sometimes

256 (13.5)

 

Frequency

225 (11.8)

Difficulty in mouth opening

Never

1,521 (80.0)

 

Rarely

190 (10.0)

 

Sometimes

132 (6.9)

 

Frequency

58 (3.1)

Clinical status

  

 Percentage of bleeding on probing

 

33.65±27.96b

 Community Periodontal Index

0

249 (13.1)

 

1

431 (22.7)

 

2

928 (48.8)

 

3

289 (15.2)

 

4

4 (0.2)

 Malocclusion

+

521 (27.4)

 Decayed, missing, and filled teeth score

 

2.01±2.88

Oral Health Impact Profile-14

  

 Total

 

1.92±5.47

 Functional limitation

 

0.23±0.84

 Physical pain

 

0.36±1.09

 Psychological discomfort

 

0.40±1.15

 Physical disability

 

0.19±0.82

 Psychological disability

 

0.33±1.03

 Social disability

 

0.22±0.84

 Handicap

 

0.20±0.81

  1. anumber (%)
  2. bmean ± SD