Background: The Pediatric Outcomes Data Collection Instrument (PODCI) has been created to evaluate functional status, to assess therapeutic needs and changes after treatment in 2 to 18 years old children and adolescents who have orthopedic problems. The PODCI has three forms; parent form for children, parent and self report forms for adolescents. Instrument has 86 items assessing `upper extremity and physical function', `transfer and basic mobility', `sports and physical function', `pain/comfort', `happiness', `global functioning' and `expectations from treatment domains'. The PODCI has been validated in multiple languages. The aim of this study was to investigate the reliability of the cross-cultural adapted Turkish version of the PODCI parent forms for children and adolescents in a variety of chronic musculoskeletal disorders.
Method: This was a methodological study. The instrument was translated and cross-culturally adapted into Turkish. Turkish version was called Bedensel İşlevsellik Değerlendirme Aracı (BIDA). It was completed by the parents/caregivers of ninety-eight children and adolescents being treated at Marmara University Medical School Department of Physical Medicine and Rehabilitation outpatient clinics at the baseline and 2-4 weeks after between April 2013-October 2013. Internal consistency and test-retest reliability (ICC) were determined.
Results: Internal consistency of the subscales and test/retest cronbach alpha values were 0.90-0.91 (r= 0.71, p= 0.000) for ``upper extremity and physical function''; 0.95-0.95 (r= 0.84, p= 0.000) for ``transfer and basic mobility''; 0.93-0.91 (r= 0.78, p= 0.000) for ``sports and physical functioning''; 0.77-0.82 (r= 0.45, p= 0.000) for ``happiness'' and 0.96-0.96 (r= 0.82, p= 0.000) for ``global functioning''. Pain/comfort subscale showed low internal consistency (-0.38-0.49; r= 0.34, p= 0.004).
Conclusion: The Turkish version of the PODCI was found to be a reliable instrument to evaluate functionality of children and adolescents with chronic musculoskeletal disorders.
Keywords: PODCI; musculoskeletal disorders; reliability.