Recalibration and Validation of the Cumberland Ankle Instability Tool Cutoff Score for Individuals With Chronic Ankle Instability

摘要: Abstract Objective To independently recalibrate and revalidate the Cumberland Ankle Instability Tool (CAIT) cutoff score for discriminating individuals with without chronic ankle instability (CAI). There are concerns original (≤27) may be suboptimal use in CAI population. Design Case control. Setting Research laboratory. Participants Two independent datasets were used (total N=200). Dataset 1 included 61 a history of ≥1 sprain ≥2 episodes giving way last year (CAI group) 57 participants no or their lifetime (uninjured group). 2 27 uninjured participants, 29 CAI, 26 single subsequent (copers). Interventions All completed CAIT during session. In dataset 1, receiver operating characteristic (ROC) curve was calculated using group membership as test variables. The ideal identified Youden index. recalibrated validated ROC analysis clinimetric characteristics. Main Outcome Measures clinimetrics. Results optimal ≤25, which is lower than previously reported. 2, demonstrated sensitivity 96.6%, specificity 86.8%, positive likelihood ratio 7.318, negative .039. 7 false positives negative. Conclusions very good properties; all properties improved compared score. Clinicians should to maximize Caution taken copers, who had high rate positives.