Reliability and Cross-Cultural Validation of the Turkish Version of the Visual Function Classification System (VFCS) for Children with Cerebral Palsy

Adiguzel Tat H., Karadeniz P. G., APAYDIN U., Efkere P. A., Ergun N., ELBASAN B.

Developmental Neurorehabilitation, 2024 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1080/17518423.2024.2413133
  • Dergi Adı: Developmental Neurorehabilitation
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, CINAHL, EMBASE, ERIC (Education Resources Information Center), MEDLINE, Psycinfo
  • Anahtar Kelimeler: Cerebral palsy, Cross-cultural validation, Reliability, VFCS, visual function classification system
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

Purpose: This correlational study aimed to determine the reliability and validity of the Turkish version of the Visual Function Classification System (VFCS) for children with CP. Method: Two physiotherapists and caregivers (n = 56) applied the VFCS (n = 120) two times at a 15-day interval. Physiotherapists’ classifications were compared for interrater reliability. Same physiotherapists and caregivers’ classifications’ were compared for intrarater reliability. Expanded & Revised Gross Motor Function Classification System (GMFCS E&R), Manual Ability Classification System (MACS), and Communication Function Classification System (CFCS) were used for assessing validity of the culturally adapted VFCS. Results: The interrater reliability between physiotherapists was excellent (ICC = 0.974, ICC = 0.988), while interrater reliability between the first physiotherapist and caregivers was good (ICC = 0.866, ICC = 0.893). The intrarater reliability was excellent (ICC = 0.971, ICC = 0.996, ICC = 0.984). A correlation was detected between the VFCS and the GMFCS E&R, MACS, and CFCS levels (r = 0.415, p <.001, r = 0.450, p <.001, r = 0.491, p <.001). Conclusion: The findings of this study demonstrate the utility, compatibility and reliability of the Turkish version of the VFCS. Trial registration number: NCT05102955.