Psychometric properties of the Spanish version of the Cumberland Ankle Instability Tool

• Published in: Disability and rehabilitation 2015-09, Vol.37 (20), p.1888-1894
• Main Authors: Rodríguez-Fernández, Ángel L., Rebollo-Roldán, Jesús, Jiménez-Rejano, José J., Güeita-Rodríguez, Javier
• Format: Article
• Language: English
• Subjects: Adolescent; Adult; Ankle; Ankle Injuries - complications; Cross-Cultural Comparison; Cross-Sectional Studies; Cumberland Ankle Instability Tool; Female; Humans; joint instability; Joint Instability - rehabilitation; Language; Male; Psychometrics; Reproducibility of Results; Severity of Illness Index; Spain; Spanish version; Surveys and Questionnaires; Young Adult
• ISSN: 0963-8288; 1464-5165
• DOI: 10.3109/09638288.2014.984879

Purpose: To estimate the psychometric properties of the Spanish version of the Cumberland Ankle Instability Tool (CAIT-Sv). Method: One hundred and seventy-one subjects participated. The psychometric properties tested for CAIT-Sv were internal consistency with Cronbach's α (n = 171) in the first measurement; test-retest reliability using the intraclass correlation coefficient (ICC 2,1 ) (n = 171) in two measurements separated by one week; criterion validity by ICC 2,1 between the original CAIT and CAIT-Sv in two measurements separated by two weeks for a subgroup of 54 bilingual subjects; ceiling and floor effects (n = 78 subjects with a history of at least one ankle sprain), and responsiveness using Cohen's d in a subgroup of 25 subjects with a history of at least one ankle sprain and a score ≤24 points on the CAIT-Sv and treated with a rehabilitation program during four weeks. Results: Internal consistency was excellent (Cronbach's α: 0.8-0.84). Test-retest reliability was high (ICC 2,1 : 0.95). Criterion validity was high (ICC 2,1 : 0.91; 95% CI: 0.84-0.94; p