Characteristics and disease parameters in 54 patients with juvenile dermatomyositis and in 54 controls.

<p>Values are number (%), median (range) or mean (SD). JDM: juvenile dermatomyositis; NA: not applicable; CRP: C-reactive protein; ESR: erythrocyte sedimentation rate; SF-36 PCS: Short Form 36 physical component Summary; CHAQ: Childhood Health Assessment Questionnaire; DMARDs: disease modifying anti-rheumatic drugs; MDI: Myositis Damage Index; DAS: Disease Activity Score.</p><p>*p<0.05.</p>‡<p>n<i> = </i>46 pairs, only assessed in those >13 years;</p>†<p>n = 50 pairs.