Journal
HYPERTENSION RESEARCH
Volume 46, Issue 1, Pages 119-127Publisher
SPRINGERNATURE
DOI: 10.1038/s41440-022-01015-x
Keywords
Nonalcoholic fatty liver disease; Fatty liver index; Hypertension; Events; Blood pressure
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The prevalence of nonalcoholic fatty liver disease (NAFLD) is increasing globally, affecting 25-30% of the population. A study found that the fatty liver index (FLI) is associated with the risk of major cardiovascular events in untreated hypertensive patients. FLI may be useful in identifying higher-risk patients in primary prevention of hypertension.
The prevalence of nonalcoholic fatty liver disease (NAFLD) has been increasing rapidly worldwide, affecting 25-30% of the population. Fatty liver index (FLI) is a validated marker of NAFLD and can be used as a screening tool for hepatic steatosis. The purpose of the study was to evaluate the relationship between FLI and the risk of major cardiovascular events in never treated hypertensive patients. We included 903 hypertensive patients without a history of cardiovascular disease (mean age 52.7 +/- 11.4 years; men 55%; baseline clinic BP 149.8 +/- 15.2/95.5 +/- 10.1 mmHg). Participants were prospectively evaluated for a mean follow-up period of 5.2 +/- 3.2 years with at least one annual visit. Patients were also categorized into two groups using an FLI of 60 units. The incidence of cardiovascular events during follow-up was 8.5% (n = 77). Patients with FLI < 60 (n = 625) had a better BP control compared to their counterparts with FLI >= 60 (n = 278) during follow up (43% vs 33%, p = 0.02). Cox-regression analysis indicated that FLI (Hazard Ratio [HR], 1.05; 95% Confidence Interval [CI], 1.03-1.07, p < 0.001), FLI z-scores (HR, 3.66; 95% CI, 2.22-6.04) and high-risk FLI (HR, 7.5; 95% CI, 3.12-18.04) were independent determinants of the outcome after adjustment for baseline and follow-up variables. Stratification by diabetes mellitus indicated that FLI predicted the outcome to a greater extent in those with than those without diabetes (P-interaction < 0.001). In conclusion, FLI has an independent prognostic value for the incidence of cardiovascular events in newly diagnosed, never-treated hypertensive patients. Therefore, FLI might identify higher-risk patients in the primary prevention of hypertension.
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