The association of dietary approach to stop hypertension (DASH) diet with hospitalization risk in patients with COVID-19
Ali Zamanian, Zahra Yari, Samira Soltanieh, Marieh Salavatizadeh, Sara Karimi, Sussan K Ardestani, Mohammadreza Salehi, Soodeh Razeghi Jahromi, Tooba Ghazanfari, Azita Hekmatdoost
Clinical Nutrition Open Science, doi:10.1016/j.nutos.2023.02.001
Background and aim: Given the importance of dietary habits in the immune system, the current study aimed at investigating the association between Dietary Approach to Stop Hypertension (DASH) diet and risk of hospitalization due to COVID-19. Methods: Dietary data of 141 patients with COVID-19 were collected using 147-item food frequency questionnaire. DASH score in this cross-sectional study was calculated based on eight components, including fruits, vegetables, legumes and nuts and seeds, whole grains, low-fat dairy, red or processed meats, sweetened beverages, and sodium. Multivariable logistic regression models were applied to estimate the OR and 95% CI for hospitalization due to COVID-19 in each tertile of DASH score. Results: Mean ± SD of DASH score in inpatients (n¼74) and outpatients (n¼ 87) was 22.5 ± 4.57 and 25.34 ± 4.23, respectively. The risk of hospitalization in the highest tertile of DASH score was 81% lower than the lowest tertile (OR¼0.19, 95%CI: 0.07e0.55, P trend ¼ 0.001 after adjustment for age, sex, BMI, energy intake). Also, more intake of fruits, vegetables and low-fat dairy products and less intake of sodium, red and processed meat were each
Conflict of interest The authors declare no conflict of interest.
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