Table 6 Univariate analysis for the influence of candidate contributing factors.

From: Changes in disc status in the reducing and nonreducing anterior disc displacement of temporomandibular joint: a longitudinal retrospective study

 

∆L

∆D

Mean ± SD (mm)

P

Mean ± SD (mm)

P

Gender

 Male

−1.60 ± 1.61

0.005 *

1.80 ± 1.47

<0.001 *

 Female

−0.95 ± 1.24

 

0.93 ± 1.42

 

Age (y)

 <15

−1.64 ± 1.30

<0.001 *

1.81 ± 1.47

<0.001 *

 15 ≤ age<22

−1.02 ± 1.17

 

0.90 ± 1.19

 

≥ 22

−0.63 ± 1.42

 

0.67 ± 1.55

 

Follow-up period (m)

 3 ≤ F ≤ 6

−1.19 ± 1.38

0.645

1.14 ± 1.19

0.272

 6 < F ≤ 12

−1.01 ± 1.27

 

1.09 ± 1.62

 

 >12

−1.11 ± 1.61

 

1.13 ± 1.42

 

Disc morphology

 Type I

−0.98 ± 1.37

0.006 *

.97 ± 1.36

<0.001 *

 Type II

−1.36 ± 1.52

 

1.48 ± 1.63

 

 Type III

−1.27 ± 1.10

 

1.39 ± 1.40

 

 Type IV

−0.47 ± 0.73

 

0.16 ± 0.71

 

 Type V

0.03 ± 0.49

 

−0.40 ± 0.94

 

Wilkes stages

 Stage I

−0.62 ± 0.86

<0.001 *

0.83 ± 1.27

0.046 *

 Stage II

−0.79 ± 1.32

 

0.80 ± 1.31

 

 Stage III

−1.58 ± 1.47

 

1.42 ± 1.52

 

 Stage IV

−0.74 ± 1.33

 

1.01 ± 1.62

 

 Stage V

0.22 ± 0.77

 

−0.18 ± 0.16

 

Joint effusion

 Absent

−0.93 ± 1.25

<0.001 *

0.98 ± 1.43

0.001 *

 Present

−2.04 ± 1.52

 

1.90 ± 1.51

 
  1. *Significant difference by univariate analysis.
Back to article page