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Table 1 Demographic and clinical features of the control population

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 Number
n 122
Sex  
 Male 67 (55%)
 Female 55 (45%)
Race  
 Hispanic 2 (1.6%)
 Caucasian 101 (83%)
 African-American 18 (15%)
 Asian 1 (0.8%)
Age (years; mean ± SD) 7.5 ± 4.5
Indication for head MRI  
 Evaluation for intracranial malignancy 51 (42%)
 Known intracranial malignancy 41 (34%)
 Evaluation for pituitary disease 21 (17%)
 Evaluation for white matter disease 7 (5.7%)
 Trauma 1 (0.8%)
 Suspected cerebral vascular accident 1 (0.8%)
Prior chemotherapy 5 (4.1%)
Prior radiation therapy 9 (7.4%)