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Table 2 Analysis of MRI deformity vs. MOC, corresponding SDS-values and centiles

From: Is early TMJ involvement in children with juvenile idiopathic arthritis clinically detectable? Clinical examination of the TMJ in comparison with contrast enhanced MRI in patients with juvenile idiopathic arthritis

   MRI deformity
Factor Examination method ANOVA Bonferroni group comparison
p-value Severity subgroups p-value Mean difference (S1 - S2) CI95 (lower, upper)
S1 S2
Maximal mouth opening capacity Orthodontic (n = 76)   0 1 0.467 3.0 −2.1, 8.1
0.001* 0 2 0.001* 6.9 2.5, 11.1
  1 2 0.378 3.8 −2.2, 9.8
Rheumatologic (n = 74)   0 1 0.076 4.7 −0.3, 9.7
0.002* 0 2 0.004* 6.0 1.6, 10.4
  1 2 1.000 1.3 −4.7, 7.4
SDS values Orthodontic (n = 72)   0 1 0.312 0.6 −0.3, 1.5
<0.001* 0 2 <0.001* 1.6 0.8, 2.4
  1 2 0.760 1.0 −0.1, 2.0
Rheumatologic (n = 70)   0 1 0.071 0.9 −0.1, 1.9
<0.001* 0 2 <0.001* 1.5 0.6, 2.3
  1 2 0.769 0.5 −0.6, 1.7
Centiles Orthodontic (n = 72)   0 1 0.142 19.5 −4.2, 43.3
<0.001* 0 2 <0.001* 42.3 22.0, 62.5
  1 2 0.147 22.7 −5.1, 50.5
Rheumatologic (n = 70)   0 1 0.023* 26.9 2.8, 50.9
<0.001* 0 2 <0.001* 42.5 21.4, 63.5
  1 2 0.552 15.6 −12.9, 44.2
  1. One way Anova with post-hoc Bonferroni test to compare the MRI to the MOC’s and the corresponding SDS-values and centiles. All continuous variables were normally distributed. Mean difference between groups with upper and lower 95 % confidence interval (CI95) is provided
  2. MRI deformity subgroups: 0 = normal, 1 = mild, 2 = severe
  3. *p-value < 0.05