What does this research mean for the field?

Higher proportions of thigh subcutaneous adipose tissue are associated with lower odds of liver fibrosis independent of overall adiposity, whereas visceral and abdominal subcutaneous fat show no independent association. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to understand how different types of fat in the body relate to liver fibrosis in adults with metabolic conditions.

March 17, 2026Metabolism OpenOpen Access

Heterogeneous associations of regional adipose depots with liver fibrosis in U.S. adults

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Key result

Higher thigh subcutaneous fat is linked to ~9% lower liver fibrosis odds per percent increase.

OR 0.91
95% CI 0.84–0.99

Why the study?

Whether regional adipose tissue distribution differentially relates to liver fibrosis independent of overall adiposity remains unclear.

Is regional adipose tissue distribution associated with liver fibrosis independent of overall adiposity in U.S. adults?

Population

3,668 U.S. adults participating in NHANES 2017–2018 with dual-energy X-ray absorptiometry and transient elastography

Comparison

Different regional adipose tissue depots (VAT%, aSAT%, and tSAT%)

Design

Cross-sectional survey-weighted analysis

Authors

KLKuan-Yu Lai CWCi Wang HKHsian-Han Kao

Discussion

Member takes

Overview

Supports incorporating regional fat distribution beyond BMI in MASLD fibrosis risk models; extends body composition research but remains hypothesis-generating.

Key Points

This research aims to understand how different types of fat in the body relate to liver fibrosis in adults with metabolic conditions.
Analyzed data from 3,668 U.S. adults participating in NHANES 2017–2018.
Used dual-energy X-ray absorptiometry and vibration-controlled transient elastography to assess fat distribution and liver stiffness.
Calculated percentages of visceral, abdominal subcutaneous, and thigh subcutaneous adipose tissue as part of total fat mass.
Employed survey-weighted logistic regression models to examine associations after adjusting for demographic, lifestyle, and BMI factors.
Clinically significant fibrosis was found in 9.7% of participants.
Higher thigh subcutaneous adipose tissue was linked to lower odds of fibrosis in all models.
Each 1% increase in thigh subcutaneous fat was associated with a 9% decrease in odds of fibrosis.
Visceral fat was not significantly associated with fibrosis after adjustments.
Abdominal subcutaneous fat's association with fibrosis was non-significant after multivariable adjustment.

Structured PICO

Is regional adipose tissue distribution associated with liver fibrosis independent of overall adiposity in U.S. adults?

Population

3,668 U.S. adults participating in NHANES 2017–2018 with available dual-energy X-ray absorptiometry and vibration-controlled transient elastography

Intervention

Regional adipose tissue distribution (visceral adipose tissue [VAT], abdominal subcutaneous adipose tissue [aSAT], and thigh subcutaneous adipose tissue [tSAT] expressed as percentages of total fat mass)

Outcome

Clinically significant liver fibrosis (defined as liver stiffness measurement >8.0 kPa)surrogate

Thigh subcutaneous fat is inversely associated with liver fibrosis independent of overall adiposity, suggesting regional fat distribution is a clinically relevant dimension for refining fibrosis risk stratification in MASLD.

Cite This Study

Lai et al. (2026) studied this question. Each 1% increase in thigh subcutaneous adipose tissue was associated with lower odds of fibrosis (OR 0.91, 95% CI 0.84–0.99), while visceral fat showed no association.

synapsesocial.com/papers/69b8f162deb47d591b8c654e https://doi.org/10.1016/j.metop.2026.100461

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March 17, 2026Metabolism OpenOpen Access

Heterogeneous associations of regional adipose depots with liver fibrosis in U.S. adults

View Full Paper

Ask AI

Bookmark

Key result

Higher thigh subcutaneous fat is linked to ~9% lower liver fibrosis odds per percent increase.

OR 0.91
95% CI 0.84–0.99

Why the study?

Whether regional adipose tissue distribution differentially relates to liver fibrosis independent of overall adiposity remains unclear.

Is regional adipose tissue distribution associated with liver fibrosis independent of overall adiposity in U.S. adults?

Population

3,668 U.S. adults participating in NHANES 2017–2018 with dual-energy X-ray absorptiometry and transient elastography

Comparison

Different regional adipose tissue depots (VAT%, aSAT%, and tSAT%)

Design

Cross-sectional survey-weighted analysis

Authors

KLKuan-Yu Lai CWCi Wang HKHsian-Han Kao

Discussion

Member takes

Overview

Supports incorporating regional fat distribution beyond BMI in MASLD fibrosis risk models; extends body composition research but remains hypothesis-generating.

Key Points

This research aims to understand how different types of fat in the body relate to liver fibrosis in adults with metabolic conditions.
Analyzed data from 3,668 U.S. adults participating in NHANES 2017–2018.
Used dual-energy X-ray absorptiometry and vibration-controlled transient elastography to assess fat distribution and liver stiffness.
Calculated percentages of visceral, abdominal subcutaneous, and thigh subcutaneous adipose tissue as part of total fat mass.
Employed survey-weighted logistic regression models to examine associations after adjusting for demographic, lifestyle, and BMI factors.
Clinically significant fibrosis was found in 9.7% of participants.
Higher thigh subcutaneous adipose tissue was linked to lower odds of fibrosis in all models.
Each 1% increase in thigh subcutaneous fat was associated with a 9% decrease in odds of fibrosis.
Visceral fat was not significantly associated with fibrosis after adjustments.
Abdominal subcutaneous fat's association with fibrosis was non-significant after multivariable adjustment.

Structured PICO

Is regional adipose tissue distribution associated with liver fibrosis independent of overall adiposity in U.S. adults?

Population

3,668 U.S. adults participating in NHANES 2017–2018 with available dual-energy X-ray absorptiometry and vibration-controlled transient elastography

Intervention

Outcome

Clinically significant liver fibrosis (defined as liver stiffness measurement >8.0 kPa)surrogate

Cite This Study

synapsesocial.com/papers/69b8f162deb47d591b8c654e https://doi.org/10.1016/j.metop.2026.100461

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

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