The Serbian version of the Childhood Health Assessment Questionnaire (CHAQ) and the Child Health Questionnaire (CHQ)

We report herein the results of the cross-cultural adaptation and validation into the Serbian language of the parentis 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 Serbian CHAQ-CHQ were fully validated with 3 forward and 1 backward translations. A total of 139 subjects were enrolled: 79 patients with JIA (30% systemic onset, 28% polyarticular onset, 6% extended oligoarticular subtype, and 36% persistent oligoarticular subtype) and 60 healthy, children. The CHAQ clinically, discriminated between healthy, subjects and JIA patients, with the systemic, polyarticular and extended oligoarti...