Journal of the Korean Society of Stereotactic and Functional Neurosurgery 2011;7(1):41-48.
Published online June 30, 2011.
A Self-Administered Questionnaire for Carpal Tunnel Syndrome ; Korean Version of Boston Questionnaire
Jae-Sung Park, Young-Min Han, Sang-Kyu Park, Dong-Kyu Chang, Kyung-Sool Chang, Ryoong Huh
Neuroscience Center, Department of Neurosurgery, Incheon St. Mary's Hospital, The Catholic University of Korea, Incheon, Korea
This prospective study evaluates a Korean version of a self-administered questionnaire for carpal tunnel syndrome (CTS) regarding reliability, validity and responsiveness to clinical outcomes.
Boston Questionnaire (BQ) was translated in Korean and slightly modified in order to achieve cross-cultural equivalence to the original version. The questionnaire was administered to 61 patients who underwent surgery for CTS and examined for reliability including reproducibility (test-retest reliability) and internal consistency. Validity was evaluated using the Short Form-36 general health questionnaire (SF-36). Responsiveness was evaluated by calculating the standardized response mean and the effect size.
The questionnaire was highly reproducible (Pearson correlation coefficient, r=0.88 and 0.81 for severity of symptoms and functional status, respectively) and internally consistent (Cronbach alpha, 0.93 and 0.89 for severity of symptoms and functional status, respectively). BQ symptom severity and functional status scales correlated with SF-36 scales. And the comparison between preoperative and postoperative scores showed large degree of clinical responsiveness
Modified Boston Questionnaire in Korean is a reliable and valid instrument for measuring the symptom severity and functional status in the patients with carpal tunnel syndrome.
Key Words: Carpal tunnel syndrome, Outcome assessment, Boston questionnaire, Korean, SF-36.
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