Dietary Approaches to Stop Hypertension (DASH) and mortality risk among patients with liver cirrhosis: a prospective cohort study

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BACKGROUND AND PURPOSE: The relationship between dietary patterns and cirrhosis is undeniable. The present study aimed to investigate the association between the Dietary Approaches to Stop Hypertension (DASH) diet and the risk of mortality in patients with cirrhosis prospectively. METHODS: In this cohort study, 121 cirrhotic patients were enrolled and followed up annually for four years. Nutritional status and dietary intakes were assessed initially, and the DASH score was calculated accordingly. Crude and multivariable-adjusted hazard ratios (HR) with 95% confidence intervals (CI) were estimated using Cox proportional hazard analyses. RESULTS: DASH components including fruits, vegetables, legumes, nuts and seeds, and low-fat dairy products were significantly associated with lower mortality risk in cirrhotic patients. Also, a higher DASH score was significantly associated with a reduction in the risk of mortality in patients with cirrhosis, so that after adjusting for all confounders, the risk of mortality in the upper tertile was 89% lower than the first tertile (HR = 0.11, 95% CI: 0.03-0.42, P trend < 0.001). The 4-year survival rate among patients across tertiles of DASH was 32%, 37%, and 46%, respectively (P = 0.005). CONCLUSION: It can be concluded that a higher DASH diet score may be associated with a reduced risk of mortality in cirrhotic patients. However, larger studies are needed to confirm the findings and determine their potential mechanisms.

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