Synapse
⌘+K
Synapse
PulseExploreClubsResearchersJournals
Instagram
HomeClubsExplore
June 7, 2026Diabetes

1655-P: Where Fat Is Stored Matters More than How Much: A Large-Scale Population-Based Study Integrating DXA Phenotyping and Causal Inference

View Full Paper
Ask AI
Bookmark
Share

Key result

Higher central fat associates with increased T2DM risk, mediated ~63% by the TyG index.

  • n=3,067

Why the study?

Obesity is a major risk factor for type 2 diabetes, but metabolic risk varies widely among individuals with similar adiposity.

Does fat distribution (central versus peripheral) affect the risk of type 2 diabetes in adults?

Population

3,067 adults from NHANES (2011-2018)

Comparison

Five core fat distribution metrics (LTrR, A/G, VAT/TAT, LFP, L/A)

Design

Cross-sectional study and two-sample Mendelian randomization

Authors

YCYONGLONG CHANGChangsha UniversityHLHAO LUOChangsha UniversityLFLongmin FanChangsha University

Discussion

Loading...

Member takes

Implication

Central fat distribution may refine T2DM risk stratification beyond BMI; hypothesis-generating for TyG mediation pending prospective studies.

Key Points

  • This study aims to uncover high-risk obesity phenotypes by evaluating fat distribution and its impact on type 2 diabetes (T2DM).
  • Analyzed 3,067 adults from NHANES (2011-2018)
  • Used logistic regression and restricted cubic splines to assess T2DM associations with fat distribution metrics
  • Employed two-sample Mendelian randomization to evaluate causal links between fat distribution and T2DM risk.
  • Higher central fat increased T2DM risk, while greater peripheral fat decreased risk.
  • Stronger associations of visceral-to-total abdominal fat ratio with T2DM in females were noted, indicating BMI alone may overlook high-risk groups.
  • Mediation analysis showed TyG accounted for approximately 62.98% of the adverse effects from central fat on T2DM.

Study Design

Type

Cross-Sectional (n=3,067)

Multicenter

Yes

Structured PICO

Does fat distribution (central versus peripheral) affect the risk of type 2 diabetes in adults?

P
Population
3,067 adults from the NHANES (2011-2018) database evaluated for the association between regional fat distribution phenotypes and type 2 diabetes risk.
E
Exposure
Five core fat distribution metrics: Leg-to-Trunk fat ratio (LTrR), Android-to-Gynoid fat ratio (A/G), Visceral-to-Total Abdominal fat ratio (VAT/TAT), Leg Fat Proportion (LFP), and Leg-to-Arm ratio (L/A)
O
Outcome
Type 2 diabetes (T2DM) risk

Fat distribution, specifically central versus peripheral adiposity, is a key determinant of T2DM risk independent of total BMI.

Cite This Study

CHANG et al. (2026) conducted a cross-sectional in Type 2 diabetes (n=3,067). Fat distribution metrics (central vs peripheral fat) was evaluated on Type 2 diabetes (T2DM) risk. Higher central fat load increased T2DM risk while greater peripheral fat decreased it, with the TyG index mediating 62.98% of the adverse association.

synapsesocial.com/papers/6a250a9a7def13d035e1ab69https://doi.org/10.2337/db26-1655-p
View Full Paper
Ask AI
Bookmark
Share

Also Consider

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

  1. 1Fat Distribution Patterns and Future Type 2 Diabetes2022 · 62 citations
  2. 2Different Indicators of Adiposity and Fat Distribution and Cardiometabolic Risk Factors in Patients with Type 2 Diabetes2021 · 15 citations
  3. 3The Epidemiology of Central Fat Distribution in Relation to Disease2004 · 156 citations
  4. 4Fat deposits and their relationship with type 2 diabetes in patients with metabolic syndrome2026
  5. 52628-P: Visceral Adiposity and Lean Mass Imbalance in Adults with Type 2DM: Insights from Body Composition Analysis2026