Authors: Il Soo Eun Ok Gul Kim Chang Kyu Kim Hong Seok Lee Jung Sub Lee
Publish Date: 2012/09/11
Volume: 471, Issue: 2, Pages: 600-605
Abstract
We first translated the English version of the OKS into Korean then back into English then held expert committee discussions to finalize the Korean version We then mailed the Korean version of the VAS for pain OKS and the previously validated SF36 to 142 patients who underwent TKAs for knee osteoarthritis Factor analysis and reliability assessment using the kappa statistic of agreement for each item the intraclass correlation coefficient and Cronbach’s alpha were conducted To determine the subscales of the OKS we used the factor analysis We also evaluated concurrent and construct validity by comparing the responses to the OKS with the results of the VAS and SF36 using Pearson’s correlation coefficientAll items had a kappa statistic of agreement greater than 06 The OKS showed test and retest reliability as follows OKS 0848 Factor 1 0867 and Factor 2 0819 Internal consistency of Cronbach’s alpha was as follows OKS 0932 Factor 1 0907 Factor 2 0867 The OKS correlated r = 0692 with the VAS The Korean version of the OKS correlated with the SF36 total and individual domain physical functioning role physical bodily pain scoresEach author certifies that he or she or a member of his or her immediate family has no funding or commercial associations eg consultancies stock ownership equity interest patent/licensing arrangements etc that might pose a conflict of interest in connection with the submitted articleEach author certifies that his or her institution approved the human protocol for this investigation that all investigations were conducted in conformity with ethical principles of research and that informed consent for participation in the study was obtained
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