Minimal clinically important difference of improvement on the Arm Function in Multiple Sclerosis Questionnaire (AMSQ)

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Background: The Arm Function in Multiple Sclerosis Questionnaire (AMSQ) has been developed to assess upper extremity function of patients with multiple sclerosis (MS). A minimal clinically important difference (MCID) value has not been determined yet. Objective: The objective of this study is to determine an MCID for AMSQ. Methods: We used the sensitivity- and specificity-based approach with dichotomized global perceived effect as an anchor. Results: The receiver operating characteristic (ROC) curve yielded an optimal threshold value of 14.5 (sensitivity 0.68 and specificity 0.79). The area under the ROC curve value was 0.77. Conclusion: We identified an MCID of 15 points for the AMSQ (range 31–186).
Original languageEnglish
Pages (from-to)505-508
Number of pages4
Issue number4
Early online date18 Jan 2019
Publication statusPublished - 1 Apr 2020

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