Association Between Dietary Habit Changes and COVID-19 Prophylaxis During the Pandemic Among Japanese Maintenance...

Following COVID-19, dietary habits have been altered frequently along with other societal lifestyle modifications. However, changes in the dietary habits of maintenance hemodialysis patients (MHPs) before and during COVID-19 have not been investigated.

A total of 132 MHPs were assessed for changes in their dietary habits before and during the pandemic and their association with COVID-19 prevention. Logistic regression models were used to calculate the adjusted odds ratios (ORs) with 95% confidence intervals (CIs) for the risk of COVID-19. A multivariate logistic regression analysis was performed.

Approximately 27% (36 of 132) of the MHPs modified their dietary habits. Following COVID-19, the frequency of eating out decreased, and that of eating in increased significantly for dinner. However, there was no change in dietary habits for breakfast and lunch. Multivariate analysis revealed an inverse correlation between the number of eating takeout and COVID-19; that is, more eating of takeout was associated with a lower risk of contracting COVID-19.

Comparing before and after the pandemic, there was a shift from eating out to eating in for dinner. However, the frequency of eating takeout played a role in preventing COVID-19, suggesting that the person preparing the meal may be a more important factor than where the meal is eaten when the main route of infection is household transmission.