Abstract
Objectives: This study aims to investigate the reliability and validity of a Korean version of the Eating Assessment Tool (EAT-10) as a clinical evaluation tool for dysphagia with stroke patients and determine its clinical usefulness as a screening tool. Methods: A total of 50 patients with stroke (15 without dysphagia, and 35 with dysphagia, identified through a videofluoroscopic swallowing study (VFSS) participated in this study. The internal consistency, test-retest reliability, and concurrent validity of the adapted Korean version of EAT-10(K-EAT-10) were evaluated. In addition, the K- EAT-10 scores were compared between two groups according to demographic characteristics, post-stroke conditions, and swallowing function. Moreover, K-EAT-10 scores were compared with the VFSS findings to estimate the sensitivity, specificity, and positive and negative predictions of aspiration. Results: The internal consistency of the K-EAT-10 questionnaire showed a Cronbach α coefficient of .091, and the correlation coefficient of the test- retest reliability was .988. In addition, when correlation analysis was performed between the total score of K-EAT-10 and the K-DHI, the correlation coefficient was .904. In the receiver operating characteristic (ROC) curve analysis of K-EAT-10, a cut-off point for the K-EAT-10 questionnaire was set at 10 points with a sensitivity of 86.7% and specificity of 77.1%, and the area under the curve was shown to be 0.86. In addition, the positive predictive value (PPV) for the K-EAT-10 was 91%, and the negative predictive value (NPV) was 60%. Conclusion: Korean version of EAT-10 revealed excellent internal consistency, test-retest reliability, concurrent validity and positive predictive value for aspiration. The results suggest that the Korean adaptation of EAT-10 can be useful as a clinical screening test for dysphagia, especially predicting aspiration risk in patients with stroke.
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