Baranello, G;
Signorini, S;
Tinelli, F;
Guzzetta, A;
Pagliano, E;
Rossi, A;
Foscan, M;
... On Behalf of the VFCS Study Group, .; + view all
(2020)
Visual Function Classification System for children with cerebral palsy: development and validation.
Developmental Medicine and Child Neurology
, 62
(1)
pp. 104-110.
10.1111/dmcn.14270.
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Abstract
AIM: To develop and validate the Visual Function Classification System (VFCS), which was created to classify how children with cerebral palsy (CP) use visual abilities in daily life. METHOD: The process of development and validation of the VFCS involved four phases: (1) drafting of the five levels from the analysis of literature and clinical experience; (2) validation of constructs and revision of the levels for concept meaningfulness, using nominal group process; (3) refinement by international Delphi survey; and(4) assessment of interrater reliability among professionals and with caregivers, and of test–retest reliability. RESULTS: Five nominal groups involved 29 participants; 65 people completed the first round and 51 the second round of the Delphi survey. Construct validity was demonstrated within an expert group and external validation through several stakeholders, with the involvement of patients and families to ensure meaningfulness of the concept. Discussions continued until consensus was reached about the construct and content of the five levels. Participants in the reliability study included 29 professionals, 39 parents, and a total sample of 160 children with CP (mean age [SD] 6y 6mo [3y 4mo]; median 5y 7mo, range 1–19y). Absolute interrater agreement among professionals was 86% (weighted κ=0.88; 95% confidence interval [CI] 0.83–0.93). Test–retest reliability was high (weighted κ=0.97; 95% CI 0.95–0.99). Parent–professional interrater reliability on 39 children was moderate (weighted κ=0.51; 95% CI 0.39–0.63). INTERPRETATION: The VFCS has been appropriately constructed and provides a reliable system to classify visual abilities of children with CP both in clinical and in research settings.
| Type: | Article |
|---|---|
| Title: | Visual Function Classification System for children with cerebral palsy: development and validation |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1111/dmcn.14270 |
| Publisher version: | https://doi.org/10.1111/dmcn.14270 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health > Developmental Neurosciences Dept |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10076071 |
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