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Table 3 MRI findings in controls compared to JIA patients

From: Defining the normal appearance of the temporomandibular joints by magnetic resonance imaging with contrast: a comparative study of children with and without juvenile idiopathic arthritis

Feature Controls JIA patients p-value
Frequency of effusion 62 (51%) 10 (29%) 0.022
Size of effusion (mm; mean ± sd) 0.89 ± 0.23 1.5 ± 1.3 0.192
Frequency of enhancement 120 (98%) 34 (97%) 0.533
Size of enhancement (mm; mean ± sd) 1.1 ± 0.24 0.88 ± 0.27 < 0.001
Frequency of chronic changes 0 2 (5.7%) 0.049