Table 1 Demographic characteristics of TMD patients.

From: Comparison of sleep quality deterioration by subgroup of painful temporomandibular disorder based on diagnostic criteria for temporomandibular disorders

Parameter

Myalgia (n=120)

Arthralgia (n=62)

Mixed TMD pain (n=155)

  

n (%) or Mean ± SD

n (%) or Mean ± SD

n (%) or Mean ± SD

Post-hoc

p-value

Demographics

Age (years)

33.80 ± 13.36

31.93 ± 13.57

32.81 ± 12.55

 

0.636

Sex (female %)

72 (60.0)

19 (30.6)

124 (80.0)

1>2, 2<3

<0.001***

Clinical characteristics

VAS

4.49 ± 2.77

4.97 ± 2.54

5.71 ± 1.93

1<3, 2<3

<0.001***

Mouth opening limitation

8 (6.7)

10 (16.1)

20 (12.9)

 

0.115

Symptom duration (days)

524.35 ± 2010.22

272.94 ± 469.26

620.59 ± 1171.99

1>2, 2<3

0.044*

Contributing factors

Bruxism

35 (29.2)

21 (33.9)

54 (34.8)

 

0.594

Clenching

49 (40.8)

23 (37.1)

74 (47.7)

 

0.284

Macrotrauma history

6 (5.0)

4 (6.5)

12 (7.7)

 

0.659

Tinnitus

34 (28.3)

9 (14.5)

48 (31.0)

2<1, 2<3

0.044*

Headache

45 (37.5)

17 (27.4)

99 (63.9)

1<3, 2<3

<0.001***

Psychological distress

66 (55.0)

30 (48.4)

91 (58.7)

 

0.381

Self-reported sleep problem

42 (35.0)

19 (30.6)

57 (36.8)

 

0.694

  1. The results were obtained from χ2 test with Bonferroni adjusted post hoc analysis and the mean difference between groups was obtained by ANOVA) with Tukey’s post-hoc test. p-Value significance was set at <0.05. *: p-value <0.05, **: p-value <0.01, ***: p-value <0.001. TMD: temporomandibular disorder, VAS: visual analogue scale, SD: standard deviation, 1 in Post-hoc test: the mean value of myalgia group, 2 in Post-hoc test: the mean value of arthralgia group, 3 in Post-hoc test: the mean value of mixed TMD pain group.
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