Validation of a Method to Identify Frailty Transitions Among Community-Dwelling Older People During the Coronavirus Disease-2019 Pandemic in Japan

Aim: We previously described a method to identify frailty transitions during the coronavirus disease-2019 pandemic. This study aimed to validate this method during a different period. Methods: In a 2-wave cohort study, self-reported questionnaires were distributed to 1953 community-dwelling older adults. In addition, we analyzed the data of nonfrail participants at baseline to indicate the predictive ability for frailty transition. Results and Conclusions: For the combined factors of older than 75 years and subjective leg muscle weakness, the sensitivity was 0.522 and the specificity was 0.637 to discriminate frailty transition. This method can be used with questionnaires without physical contact. (C) 2024 Wolters Kluwer Health, Inc. All rights reserved.