Comparing different revisions of the Childhood Health Assessment Questionnaire to reduce the ceiling effect and improve score distribution: Data from a multi-center European cohort study of children with JIA

• Những tác giả chính: Stavrakidou M (Tác giả), Sandstedt E (Tác giả), Scott J (Tác giả), Berggren K (Tác giả), Maillard S (Tác giả), Nørgaard M (Tác giả), Ünal E (Tác giả), Groen W (Tác giả), van der Net J (Tác giả)
• Định dạng: Sách
• Được phát hành: BMC, 2010-05-01T00:00:00Z.
• Những chủ đề: article
• Truy cập trực tuyến: Connect to this object online.

<p>Abstract</p> <p>Background</p> <p>The original version of the Childhood Health Assessment Questionnaire (CHAQ30orig) suffers from a ceiling effect and hence has reduced clinical validity. The purpose of this study was to evaluate the effect of adding eight more deman...