Responsiveness and concurrent validity of the revised Capabilities of Upper Extremity-Questionnaire (CUE-Q) in patients with acute tetraplegia

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Study evaluated the responsiveness of the revised Capabilities of Upper Extremity-Questionnaire (CUE-Q), in which the item responses were reduced from seven to five levels, relative to the upper-extremity motor score (UEMS) and to the self-care subscale of Functional Independence Measure (FIMsc). A total of 46 subjects with acute traumatic tetraplegia (19 motor complete, 27 motor incomplete) completed the revised CUE-Q, UEMS, and FIMsc at admission and discharge from rehabilitation. Subjects were mostly male and Caucasian. The mean age was 44 years. Predominant etiologies were falls and motor vehicle accidents. During rehabilitation, mean CUE-Q scores increased from 49.8 to 73.7, UEMS increased from 19.6 to 26.3, and FIMsc increased from 9.8 to 21.5. At admission and discharge, CUE scores had excellent to good Spearman correlations with UEMS and FIMsc, but change scores had little to moderate correlations, suggesting that the CUE, UEMS and FIM measure related but different constructs. Effect size of the change score was 0.92 for CUE-Q, 0.87 for UEMS, and 1.38 for FIMsc. This compares to an effect size of 0.73 for the original 7-level response CUE-Q. Results indicate that the simplified response set of the CUE-Q maintains the responsiveness of the original version, while it increases the ease of use for the patient.

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