• Yuta Kubo, Taiji Noguchi, Takahiro Hayashi, Naoki Tomiyama, Akira Ochi, and Hiroyuki Hayashi.
• Division of Occupational Therapy, Faculty of Rehabilitation and Care, Seijoh University, Tokai, Japan. Electronic address: kubo-yu@seijoh-u.ac.jp.
• Nutrition. 2022 Oct 1; 102: 111697111697.

ObjectivesIt is likely that the number of older adults who eat alone has increased during the COVID-19 pandemic. Older adults who eat alone tend to experience weight fluctuations. Weight loss and underweight in older adults cause health problems. The study objective was to longitudinally investigate the association between changes in eating alone or with others and body weight status in older adults.MethodsThis longitudinal cohort study was conducted in March and October 2020 in Minokamo City, Gifu Prefecture, Japan. Questionnaire data for 1071 community-dwelling older adults were analyzed. Multinomial logistic regression analysis was performed using changes in eating alone or with others as the independent variable and body weight status as the dependent variable. The analysis was adjusted for age, sex, living arrangements, educational level, diseases receiving medical treatment, cognitive status, depression, and instrumental activities of daily living. Missing data were imputed using multiple imputation.ResultsThe average age of participants was 81.1 y (SD, 4.9 y). Individuals who reported eating alone in both surveys were more likely to report weight loss than those who reported eating with others in both surveys (adjusted model: odds ratio, 2.25; 95% confidence interval, 1.06-4.78; P = 0.04).ConclusionsThese findings suggest that measures to prevent weight loss in older adults who eat alone are particularly important during the COVID-19 pandemic.Copyright © 2022 Elsevier Inc. All rights reserved.

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