Reliability and validity of the Japanese version of the Paediatric Pain Profile for children with severe motor and intellectual disabilities

Abstract

Children with severe motor and intellectual disabilities experience chronic pain but cannot communicate verbally. However, no Japanese tool currently exists for assessing pain in this population. This study aimed to develop and evaluate the reliability and validity of a Japanese version of the Paediatric Pain Profile, which is a behavioral rating scale to assess pain in children with severe neurological disabilities. The sample comprised 30 children with severe motor and intellectual disabilities at three hospitals in Japan. Three specialist nurses rated low and high pain video scenes of the children (twice at 1-week intervals) using the Face, Legs, Activity, Cry, Consolability behavioral scale and a translated Japanese version of the Paediatric Pain Profile. On the basis of their ratings, we calculated the internal consistency, test–retest reliability, and intra- and inter-observer reliabilities of the Paediatric Pain Profile. Additionally, we assessed concurrent validity using the Face, Legs, Activity, Cry, Consolability behavioral scale and construct validity using low versus high pain scenes. Both internal consistency (low pain: alpha = 0.735; high pain: alpha = 0.928) and test–retest reliability (r = 0.846) of the Japanese version of the Paediatric Pain Profile were good. Intra-observer reliability was substantial (r = 0.748), whereas inter-observer reliability was only moderate (r = 0.529). However, the concurrent validity with Face, Legs, Activity, Cry, Consolability scores was good (r = 0.629) and construct validity was confirmed (p < 0.001). We confirmed the validity of the Japanese version of the Paediatric Pain Profile, but reliable pain assessment may require repeated ratings by the same person. To accurately assess pain in children with severe motor and intellectual disabilities, healthcare staff must be properly trained and become more skilled in using the Japanese version of the Paediatric Pain Profile.

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