Dietary diversity and food choice motives during the COVID-19 pandemic among older Japanese : An Internet Panel Survey

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  • Changes of lifestyle during the COVID-19 pandemic

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Background and Objectives: We examined how food choice motives and dietary habits changed during the COVID-19 pandemic. Methods and Study Design: Four hundred elderly Japanese completed an online questionnaire in early May in 2021. Participants were retrospectively asked about their intake of food groups and food choice motives before and during the COVID-19 pandemic. Dietary diversity was determined using the dietary variety score calculated from the food frequency questionnaire with 10 food groups. The importance of each of the nine food choice motives for elderly people was assessed. Each scores ranged from 1 to 5. Changes in food choice motives and dietary behaviors during the COVID-19 pandemic were assessed using the paired t-test and a general linear model. Results: Among the food choice motives, scores for the importance of weight control, physical well-being and economical efficiency significantly increased in both sexes (all p<0.05). Dietary diversity score was lower during the COVID-19 pandemic than that before the pandemic in women (p=0.019), but there was no difference in men. In the multivariate adjustment model, physical well-being and economical efficiency were shown to have significant positive associations with the COVID-19 pandemic in women (p=0.034 and 0.009, respectively). In contrast, eating out was shown to have a significant inverse association with the COVID-19 pandemic in women (p=0.009). Conclusions: The findings suggest that the COVID-19 pandemic was associated with an increase in some food choice motives and a decrease in the frequency of eating out among elderly female Japanese.

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