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Background <p>The Hepatic Steatosis Index (HSI) serves as a non-invasive indicator for assessing liver fat accumulation. Its potential association with hypertension has garnered increasing attention, as metabolic dysfunctions, including hepatic steatosis, may contribute to elevated blood pressure <i>via</i> mechanisms such as insulin resistance and chronic inflammation.</p> Methods <p>Utilizing data from the NHANES database (2011–2018), the HSI was calculated on the basis of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and BMI.The association between HSI and hypertension was assessed by univariate analysis, weighted multivariate Logistic regression, and restricted cubic spline (RCS) models. Subgroup analyses were performed to increase the reliability of the data.</p> Results <p>This cross-sectional study analysed data from 17,501 adults (NHANES 2011–2018) to assess the association between HSI and hypertension. Of these, 9,890 (56.51%) were diagnosed with hypertension.In the unadjusted model, HSI demonstrated a statistically significant correlation with hypertension, showing an odds ratio (OR) of 1.05 (95% confidence interval: 1.04–1.06).After adjustment for potential confounders, a higher prevalence of hypertension was observed in participants in the upper HSI quartiles (Q3 and Q4), with corresponding ORs of 2.29 (95% CI: 2.29–2.63) and 4.03 (95% CI: 3.42–4.74), respectively. RCS analysis revealed a U-shaped non-linear relationship between HSI and hypertension (<i>P</i> &lt; 0.001), indicating that while hypertension risk primarily escalated with increasing HSI, a modest risk elevation was also detected at lower HSI levels. This suggests that both excessive liver fat accumulation (indicated by a high HSI) and underlying metabolic disorders (such as malnutrition or sarcopenia) may contribute to hypertension risk in individuals with unexpectedly low HSI. Subgroup analyses identified significant interactions in relation to education, cancer, and diabetes mellitus (p for interaction &lt; 0.05), whereas no significant interactions were observed in other stratifications.</p> Conclusion <p>This study found a U-shaped relationship between the hepatic steatosis index (HSI) and the risk of hypertension. Although the HSI shows potential as a practical screening tool in primary care, further longitudinal studies are needed to establish causality and explore the complex bidirectional pathways involved.</p> Clinical trial number <p>Not applicable.</p>

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The relationship between hepatic steatosis index and hypertension: NHANES 2011–2018

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年4月17日

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  • Wenxuan Zhang,
  • Bing Gao,
  • Yaping Wang,
  • Yuxiang Cao,
  • Jing Wang

摘要

Background

The Hepatic Steatosis Index (HSI) serves as a non-invasive indicator for assessing liver fat accumulation. Its potential association with hypertension has garnered increasing attention, as metabolic dysfunctions, including hepatic steatosis, may contribute to elevated blood pressure via mechanisms such as insulin resistance and chronic inflammation.

Methods

Utilizing data from the NHANES database (2011–2018), the HSI was calculated on the basis of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and BMI.The association between HSI and hypertension was assessed by univariate analysis, weighted multivariate Logistic regression, and restricted cubic spline (RCS) models. Subgroup analyses were performed to increase the reliability of the data.

Results

This cross-sectional study analysed data from 17,501 adults (NHANES 2011–2018) to assess the association between HSI and hypertension. Of these, 9,890 (56.51%) were diagnosed with hypertension.In the unadjusted model, HSI demonstrated a statistically significant correlation with hypertension, showing an odds ratio (OR) of 1.05 (95% confidence interval: 1.04–1.06).After adjustment for potential confounders, a higher prevalence of hypertension was observed in participants in the upper HSI quartiles (Q3 and Q4), with corresponding ORs of 2.29 (95% CI: 2.29–2.63) and 4.03 (95% CI: 3.42–4.74), respectively. RCS analysis revealed a U-shaped non-linear relationship between HSI and hypertension (P < 0.001), indicating that while hypertension risk primarily escalated with increasing HSI, a modest risk elevation was also detected at lower HSI levels. This suggests that both excessive liver fat accumulation (indicated by a high HSI) and underlying metabolic disorders (such as malnutrition or sarcopenia) may contribute to hypertension risk in individuals with unexpectedly low HSI. Subgroup analyses identified significant interactions in relation to education, cancer, and diabetes mellitus (p for interaction < 0.05), whereas no significant interactions were observed in other stratifications.

Conclusion

This study found a U-shaped relationship between the hepatic steatosis index (HSI) and the risk of hypertension. Although the HSI shows potential as a practical screening tool in primary care, further longitudinal studies are needed to establish causality and explore the complex bidirectional pathways involved.

Clinical trial number

Not applicable.