The Seirei dysphagia screening questionnaire (namely, Seirei dsq) has been used to screen for oropharyngeal dysphagia (OD). Some of the questions in the questionnaire are difficult for people with cognitive decline to answer. We selected 10 items from the Seirei dsq that could be assessed by others, such as care workers (named Swallow-10). This study aims to verify the validity of the scoring method used in Swallow-10. The dataset used in this study was the one used in the development of Seirei dsq : 50 patients with cerebrovascular disease who were diagnosed with OD, 145 patients with cerebrovascular disease who did not have OD, and 170 healthy subjects. Among the answer choices, "A" for severe symptom, "B" for mild symptom and "C" for no symptom were scored with 4, 1 and 0 points respectively. Factor analysis extracted two factors : one related to pharyngeal function and another related to oral function. In addition, the Cronbach's alpha coefficient was 0.84. ROC analysis indicated that optimal cutoff value was 5 points, with a sensitivity of 90.0% and a specificity of 88.5%. These results suggest that Swallow-10 may be useful as an OD screening tool for subjects with cognitive decline J. Med. Invest. 70 : 231-235, February, 2023.
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