KOOS-Child exhibits inadequate structural validity in a cohort of paediatric patients with ACL deficiency.
Christian Fugl HansenMaria Østergaard MadsenSusan WarmingMartin Wyman RathckeMichael KrogsgaardKarl Bang ChristensenPublished in: British journal of sports medicine (2022)
KOOS-Child exhibits inadequate measurement properties in its current form for children with ACL deficiency. Suggestions to make the subscales fit the models better and improve accuracy of KOOS-Child are presented. However, the large ceiling effects observed may reduce sensitivity and induce type 2 errors.