Reliability and validity of a Chinese version of the Pediatric Evaluation of Disability Inventory in children with cerebral palsy.

Abstract

To examine the reliability and validity of a Chinese version of the Pediatric Evaluation of Disability Inventory in children with cerebral palsy. A prospective study. Two samples: 58 children with cerebral palsy (mean age 65.4 (standard deviation 29.9) months) and 89 normally developing children (mean age 43.5 (standard deviation 20.6) months). The Pediatric Evaluation of Disability Inventory was translated and cross-culturally adapted into a Chinese version. The test-retest reliability, concurrent validity and discriminative validity were examined. Internal consistency was high (Cronbach's alpha: 0.90-0.99). Test-retest reliability was excellent (intraclass correlation coefficient: 0.982-0.998). The concurrent validity was good, as evidenced by the high correlation between the Pediatric Evaluation of Disability Inventory and the Functional Independence Measure for Children (Spearman's rho: 0.92-0.99). Logistic regression analysis demonstrated that the Pediatric Evaluation of Disability Inventory factor scores estimated by confirmatory factor analysis differentiated the children with cerebral palsy from normally developing children. This study demonstrated that the Chinese version of the Pediatric Evaluation of Disability Inventory has good reliability and validity and provides support for its use in Chinese-speaking children with cerebral palsy.