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Validation of Korean Version of the London Chest Activity of Daily Living Scale in Patients With Chronic Obstructive Pulmonary Disease.
Annals of Rehabilitation Medicine 2018 April
Objective: To translate the English version of the London Chest Activity of Daily Living scale (LCADL) into a Korean version and to determine the reliability and validity of the Korean version in patients with chronic obstructive pulmonary disease (COPD).
Methods: The English version of LCADL was translated into Korean and back-translated into English. Subsequently, the back-translated version was reviewed and compared with the original, and thus the final K-LCADL was obtained. To evaluate the validation of the K-LCADL, patients simultaneously completed a pulmonary function test, a 6-Minute Walk Test (6MWT), and questionnaires, including the modified Medical Research Council (mMRC) dyspnea scale, the Korean version of the St. George's Respiratory Questionnaire (K-SGRQ), the Korean version of the COPD Assessment Test (K-CAT), and the Korean version of the EuroQoL-5 Dimensions (K-EQ-5D). To assess test-retest reliability, the K-LCADL was again administered to the same patients within 2 weeks from initial assessment.
Results: A total of 94 patients participated in the present study. The total K-LCADL score was positively correlated with the K-SGRQ (r=0.802, p<0.001), the mMRC dyspnea scale (r=0.603, p<0.001), and the K-CAT score (r=0.714, p<0.001), and negatively correlated with the K-EQ-5D (r=-0.764, p<0.001), 6MWT (r=-0.635, p<0.001), forced expiratory volume in one second 1 (r=-0.416, p=0.002), and forced vital capacity (r=-0.397, p=0.023). Intraclass correlation coefficient of the K-LCADL was 0.951 (p<0.001).
Conclusion: The K-LCADL is a reliable and valid questionnaire for evaluating limitation of activities of daily living in patients with COPD.
Methods: The English version of LCADL was translated into Korean and back-translated into English. Subsequently, the back-translated version was reviewed and compared with the original, and thus the final K-LCADL was obtained. To evaluate the validation of the K-LCADL, patients simultaneously completed a pulmonary function test, a 6-Minute Walk Test (6MWT), and questionnaires, including the modified Medical Research Council (mMRC) dyspnea scale, the Korean version of the St. George's Respiratory Questionnaire (K-SGRQ), the Korean version of the COPD Assessment Test (K-CAT), and the Korean version of the EuroQoL-5 Dimensions (K-EQ-5D). To assess test-retest reliability, the K-LCADL was again administered to the same patients within 2 weeks from initial assessment.
Results: A total of 94 patients participated in the present study. The total K-LCADL score was positively correlated with the K-SGRQ (r=0.802, p<0.001), the mMRC dyspnea scale (r=0.603, p<0.001), and the K-CAT score (r=0.714, p<0.001), and negatively correlated with the K-EQ-5D (r=-0.764, p<0.001), 6MWT (r=-0.635, p<0.001), forced expiratory volume in one second 1 (r=-0.416, p=0.002), and forced vital capacity (r=-0.397, p=0.023). Intraclass correlation coefficient of the K-LCADL was 0.951 (p<0.001).
Conclusion: The K-LCADL is a reliable and valid questionnaire for evaluating limitation of activities of daily living in patients with COPD.
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