• Kathryn A Birnie, Patricia A Richardson, Adithi V Rajagopalan, and Rashmi P Bhandari.
• Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, ON, Canada.
• Clin J Pain. 2020 Mar 1; 36 (3): 203-212.

ObjectivesValid and efficient assessment of patient-reported outcomes remains a priority to guide pain treatment and research. PROMIS pediatric self-report and parent proxy measures offer feasible and rigorous evaluation of functioning in children with chronic conditions, including pain. A key challenge is determining the usefulness of multisource information from children and caregivers for understanding pain and function. Our primary aim examined child-caregiver agreement across child functioning domains. Our secondary aim examined child and caregiver factors associated with the child-caregiver agreement.Materials And MethodsA sample of 806 children with chronic pain (Mage=14.50 y; 72% female individuals) and a caregiver (Mage=45.82 y; 85% mothers) completed PROMIS pediatric self-report and parent proxy measures of anxiety, depression, fatigue, pain interference, and mobility before intake in an interdisciplinary outpatient pediatric chronic pain program.ResultsThe agreement was poor to good depending on the evaluation method (effect size, intraclass correlation, and clinical significance interpretation). Caregivers generally reported worse child symptoms across domains compared with child self-report. The greatest discrepancy was observed for child anxiety, pain interference, and peer relations, with the greatest agreement for child mobility. The greater caregiver-child discrepancy was found for younger children, girls, with a higher child or caregiver pain catastrophizing, and poorer caregiver physical or mental health.DiscussionFindings are discussed within the interpersonal context of pain and indicate the relevance of both child and caregiver perspectives to personalize chronic pain assessment and treatment. Findings can be used by clinicians and researchers to guide whether and how to integrate multi-informant reports about child chronic pain functioning.

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