• M Hofer, N Ruperto, R Saurenmann, M J Sauvain, H I Huppertz, J M Landgraf, A M Prieur, and Paediatric Rheumatology International Trials Organisation.
• Service de Pédiatrie, Centre Hospitalier Universitaire Vaudois (CHUV), CH-1011 Lausanne, Switzerland. michael.hofer@chuv.hospvd.ch
• Clin Exp Rheumatol. 2001 Jul 1; 19 (4 Suppl 23): S151-7.

AbstractWe report herein the results of the cross-cultural adaptation and validation into the Swiss German and Swiss French languages of the parent's version of two health related quality of life instruments. The Childhood Health Assessment Questionnaire (CHAQ) is a disease specific health instrument that measures functional ability in daily living activities in children with juvenile idiopathic arthritis (JIA). The Child Health Questionnaire (CHQ) is a generic health instrument designed to capture the physical and psychosocial well-being of children independently from the underlying disease. The Swiss German and Swiss French CHAQ-CHQ were adapted from the German and French versions of the CHAQ-CHQ, and revalidated in this study. A total of 147 subjects were enrolled: 85 patients with JIA (22% systemic onset, 31% polyarticular onset, 32% extended oligoarticular subtype, and 15% persistent oligoarticular subtype) and 62 healthy children. The CHAQ clinically discriminated between healthy subjects and JIA patients, with the systemic, polyarticular and extended oligoarticular subtypes having a higher degree of disability, pain, and a lower overall well-being when compared to their healthy peers. Also the CHQ clinically discriminated between healthy subjects and JIA patients, with the systemic onset, polyarticular onset and extended oligoarticular subtypes having a lower physical and psychosocial well-being when compared to their healthy peers. In conclusion the Swiss German and Swiss French versions of the CHAQ-CHQ are reliable, and valid tools for the functional, physical and psychosocial assessment of children with JIA.

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