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Table 4 Univariate and multivariate logistic regression models of risk factors for temporomandibular disorders

From: Temporomandibular disorders among medical students in China: prevalence, biological and psychological risk factors

 

Univariable

Multivariable

HR (95 %CI)

p value

HR (95 %CI)

p value

Biological factor

Gender

1.211 (0.891, 1.646)

0.222

  

Sleep bruxism

2.508 (1.668, 3.772)

< 0.001

1.943 (1.217, 3.104)

0.005

Awake bruxism

2.540 (1.272, 5.073)

0.008

1.284 (0.567, 2.908)

0.548

Empty chewing

3.229 (2.056, 5.071)

< 0.001

2.489 (1.484, 4.173)

0.001

Unilateral chewing

2.589 (1.890, 3.545)

< 0.001

1.679 (1.178, 2.393)

0.004

Chewing gum

1.443 (1.035, 2.001)

0.030

0.977 (0.668, 1.429)

0.906

Static occlusion

Angle’s malocclusion

1.276 (0.785, 3.461)

0.364

  

Anterior teeth overbite

1.234 (1.115, 1.367)

< 0.001

1.193 (1.014, 1.403)

0.033

Anterior teeth overjet

1.262 (1.073, 1.485)

0.005

1.017 (0.786, 1.317)

0.895

Posterior teeth crossbite

0.426 (0.093, 1.960)

0.273

  

Posterior scissor bite

1.718 (0.840, 3.515)

0.138

  

Psychological factor

Depression

2.829 (2.042, 3.921)

< 0.001

1.656 (1.143, 2.400)

0.008

Anxiety

4.911 (3.523, 6.844)

< 0.001

3.351 (2.325, 4.829)

< 0.001

Sleep disturbance

2.021 (1.505, 2.714)

< 0.001

1.324 (0.946, 1.852)

0.101

  1.  h hazard ratio, CI confidence interval