Functional assessment of pediatric pain patients: psychometric properties of the functional disability inventory

Pain. 2006 Mar;121(1-2):77-84. doi: 10.1016/j.pain.2005.12.002. Epub 2006 Feb 9.


The Functional Disability Inventory (FDI; Walker LS, Greene JW. The functional disability inventory: measuring a neglected dimension of child health status. J Pediatr Psychol 1991;16:39-58) assesses activity limitations in children and adolescents with a variety of pediatric conditions. This study evaluated the psychometric properties of the FDI in pediatric pain patients. Participants included 596 patients with chronic abdominal pain, ages 8-17, and a subset of their parents (n = 151) who completed the FDI and measures of pain, limitations in school activities, and somatic and depressive symptoms at a clinic visit. Test-retest reliability was high at 2 weeks (child report, .74; parent-report, .64) and moderate at 3 months (child report, .48; parent report, .39). Internal consistency reliability was excellent, ranging from .86 to .91. Validity was supported by significant correlations of child- and parent-report FDI scores with measures of school-related disability, pain, and somatic symptoms. Study results add to a growing body of empirical literature supporting the reliability and validity of the FDI for functional assessment of pediatric patients with chronic pain.

Publication types

  • Comparative Study
  • Research Support, N.I.H., Extramural

MeSH terms

  • Activities of Daily Living
  • Adolescent
  • Child
  • Depression / physiopathology
  • Disability Evaluation*
  • Female
  • Health Status*
  • Humans
  • Male
  • Pain / physiopathology*
  • Pain / psychology*
  • Pain Measurement / methods
  • Personality Inventory / statistics & numerical data
  • Predictive Value of Tests
  • Psychometrics*
  • Reproducibility of Results
  • Retrospective Studies
  • Sickness Impact Profile