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Table 4 Stepwise regression model

From: Correlation of MRI and arthroscopic findings with clinical outcome in temporomandibular joint disorders: a retrospective cohort study

  Variable P-Value
MRI ST improvement in MC in the entire population Crumpled disc ≤3 0.0112
   Rounded disc ≤1 0.073
   Articular eminence deformation ≤1 0.0848
   Lateral pterygoid muscle anomaly ≤2 0.1763
   Joint effusion ≤2 0.2095
  ST improvement in MC if MC is pain Condylar Deformation ≤4 0.0029
   Lateral pterygoid muscle deformation ≤2 0.0049
   Articular eminence deformation ≤1 0.0052
   Rounded disc ≤1 0.0227
  MT improvement in MC in the entire population Crumpled disc ≤3 0.0054
   DJD 0.1861
   Inflammatory arthritis 0.1992
  MT improvement in MC if MC is pain Articular eminence deformation ≤1 0.0325
Arthroscopy ST improvement in MC in the entire population DJD 0.0178
   Haemorrhagic infiltration of the medial synovium ≤1 0.0845
   Other 0.068
  ST improvement in MC if MC is pain Reduction ≤2 0.0744
   Other 0.4226
  MT improvement in MC in the entire population Displacement of the disc ≤4 0.058
  MT improvement in MC if MC is pain Articular eminence deformation ≤4 0.2853
MRI + Arthroscopy ST improvement in MC in the entire population Reduction (arthroscopy) ≤ 2 0.0474
   Other (arthroscopy) 0.3772
  ST improvement in MC if MC is Pain DJD (arthroscopy) 0.0559
   Other (arthroscopy) 0.1823
   Joint effusion (MRI) ≤ 1 0.1418
  MT improvement in MC in the entire population Crumpled disc (MRI) ≤ 3 0.0078
   DJD (MRI) 0.0581
  MT improvement in MC if MC is Pain Articular eminence deformation (arthroscopy) ≤ 4 0.9984
  1. MRI: Magnetic resonance imaging, ST: short-term, MT: medium-term, MC: Main Complaint, DJD: Degenerative Joint Disease. P-values in bold are significant. 5-point Likert scale (1. absolutely not present; 2. probably not present; 3. uncertain; 4. probably present; 5. absolutely present)