Table 2 Univariate and Multivariate Analyses for Deterioration of ADD Patients.

From: Yang’s Classification of Juvenile TMJ Anterior Disc Displacement Contributing to Treatment protocols

variables

Univariate Analysis

Multivariate Analysis

Hazard ratio (95%CI)

P

Hazard ratio (95%CI)

P

gender - M vs F

0.66 (0.41–1.05)

0.0809

  

Age

1.22 (1.11–1.34)

<0.0001

  

Disease course

1.02 (0.75–1.37)

0.9226

0.98 (0.97–0.99)

0.0019

Wilkes staging

    1 vs 3

3.44 (1.61–7.34)

0.0703

  

    2 vs 3

1.59 (0.83–3.04)

0.0014

  

    4 vs 3

2.56 (1.61–4.07)

0.4139

  

    5 vs 3

4.11 (2.44–6.94)

0.6359

  

Our staging

    1 vs 0

1.22 (0.67–2.25)

0.5121

1.65 (0.54–5.05)

0.3791

    2 vs 0

2.39 (1.32–4.33)

0.0042

3.81 (1.32–4.33)

0.0167

    3 vs 0

3.97 (2.34–6.73)

<0.0001

9.62 (3.69–25.08)

<0.0001

    4 vs 0

5.55 (3.11–9.92)

<0.0001

12.14 (4.09–36.01)

<0.0001

Treatment

   (no vs yes)

13.25 (9.39–18.70)

<0.0001

42.94 (15.38–119.92)

<0.0001

Our stage 1 * treatment(yes)

  

0.86(0.23–3.30)

0.83

Our stage 2 * treatment(yes)

  

0.3(0.08–1.11)

0.0713

Our stage 3 * treatment(yes)

  

0.19(0.06–0.61)

0.0053

Our stage 4 * treatment(yes)

  

0.14(0.04–0.49)

0.0024