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      A systematic review of the psychometric properties of the Boston Carpal Tunnel Questionnaire

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          Abstract

          Background

          The Boston Carpal Tunnel Questionnaire (BCTQ) is a disease-specific measure of self-reported symptom severity and functional status. It is frequently used in the reporting of outcomes from trials into interventions for carpal tunnel syndrome. We conducted a systematic review of published studies on the psychometric properties of the BCTQ to determine the level of evidence on the instrument's validity, reliability and responsiveness to date.

          Methods

          A search of the databases Medline, CINAHL, AMED and PsychInfo was conducted to retrieve studies which investigated one or more of the psychometric properties of the BCTQ. Data abstraction was undertaken by the first two authors.

          Results

          Ten studies were retrieved which met the inclusion criteria. One study evaluated face and content validity (43 patients) eight studies assessed construct validity (932 patients), four studies tested reliability (126 patients) and nine studies assessed responsiveness (986 patients). Interpretability was evaluated in one study and acceptability in eight studies (978 patients).

          Conclusion

          The BCTQ is a standardised, patient-based outcome measure of symptom severity and functional status in patients with carpal tunnel syndrome. The evidence base of the psychometric properties indicates that the BCTQ is a valid, reliable, responsive and acceptable instrument and should be included as a primary outcome measures in future CTS trials.

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          Most cited references25

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          A self-administered questionnaire for the assessment of severity of symptoms and functional status in carpal tunnel syndrome.

          We developed a self-administered questionnaire for the assessment of severity of symptoms and functional status in patients who have carpal tunnel syndrome. The reproducibility, internal consistency, validity, and responsiveness to clinical change of scales for the measurement of severity of symptoms and functional status were evaluated in a clinical study. The scales were highly reproducible (Pearson correlation coefficient, r = 0.91 and 0.93 for severity of symptoms and functional status, respectively) and internally consistent (Cronbach alpha, 0.89 and 0.91 for severity of symptoms and functional status, respectively). Both scales had positive, but modest or weak, correlations with two-point discrimination and Semmes-Weinstein monofilament testing (Spearman coefficient, r = 0.12 to 0.42). In thirty-eight patients who were operated on in 1990 and were evaluated a median of fourteen months postoperatively, the mean symptom-severity score improved from 3.4 points preoperatively to 1.9 points at the latest follow-up examination, while the mean functional-status score improved from 3 to 2 points (5 points is the worst score and 1 point is the best score for each scale). Similar improvement was noted in twenty-six patients who were evaluated before and three months after the operation. We concluded that the scales for the measurement of severity of symptoms and functional status are reproducible, internally consistent, and responsive to clinical change, and that they measure dimensions of outcomes not captured by traditional measurements of impairment of the median nerve. These scales should enhance standardization of measurement of outcomes in studies of treatment for carpal tunnel syndrome.
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            Are quality of life measures patient centred?

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              Evaluation of the Spanish version of the DASH and carpal tunnel syndrome health-related quality-of-life instruments: Cross-cultural adaptation process and reliability

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                Author and article information

                Journal
                BMC Musculoskelet Disord
                BMC Musculoskeletal Disorders
                BioMed Central (London )
                1471-2474
                2006
                20 October 2006
                : 7
                : 78
                Affiliations
                [1 ]School of Allied Health Professions, University of East Anglia, Norwich, UK
                Article
                1471-2474-7-78
                10.1186/1471-2474-7-78
                1624826
                17054773
                b630ee77-9473-4cd9-86fa-edc05364a0ac
                Copyright © 2006 Leite et al; licensee BioMed Central Ltd.

                This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                Categories
                Research Article

                Orthopedics
                Orthopedics

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