Evidence map›Paper›PMID 41686549›Full record

ArticleMedicine2026

Triglyceride-glucose index demonstrates false-positive association with cardiometabolic multimorbidity progression in cardiometabolic disease patients: Observation and Mendelian randomization study.

Zekai Zhou, Heng Wee Tan, Yubo Zhang, Le Yu, Yanping Wang, Songming Chen, Chujuan Zeng

Abstract read
In one paragraph

Article in Medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Zekai ZhouDepartment of Cardiology, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, People's Republic of China.ORCID 0009-0006-0219-4031
Heng Wee TanThe Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, People's Republic of China.ORCID 0000-0001-5795-2449
Yubo ZhangDepartment of Cardiology, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, People's Republic of China.
Le YuLaboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, People's Republic of China.ORCID 0009-0007-5979-5986
Yanping WangDepartment of Cardiology, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, People's Republic of China.
Songming ChenDepartment of Cardiology, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, People's Republic of China.
Chujuan ZengDepartment of Cardiology, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, People's Republic of China.

Funding

uangdong Basic and Applied Basic Research Foundation 2023A1515110397
6 · The paper itself

Abstract

The Triglyceride-Glucose (TyG) index is a recognized predictor for incident cardiometabolic diseases (CMDs) and cardiometabolic multimorbidity (CMM) in general populations. However, its utility for predicting progression from single CMD to CMM among patients with existing CMD remains unverified. This study combined retrospective cohort analyses (cross-sectional cohorts: China Health and Retirement Longitudinal Study [CHARLS]-1, n = 5415; First Affiliated Hospital of Shantou University Medical Center, n = 544; longitudinal cohort: CHARLS-2, n = 1866) with Mendelian randomization to evaluate this relationship. Cross-sectional analyses initially indicated positive associations between elevated TyG index and CMM progression (per-standard deviation increase: CHARLS-1 adjusted odds ratio [OR] = 1.43, 95% confidence interval [CI]: 1.30-1.57; First Affiliated Hospital of Shantou University Medical Center adjusted OR = 1.75, 95% CI: 1.33-2.31). However, longitudinal analysis showed no significant association after multivariable adjustment (hazard ratio = 0.87, 95% CI: 0.73-1.02). Crucially, Mendelian randomization analysis with sequential exclusion of confounder-associated single nucleotide polymorphisms (glucose, triglycerides, and body mass index) revealed no causal relationship (Model 3 inverse-variance weighted OR = 0.647, 95% CI: 0.412-1.014). These findings demonstrate that the apparent association between TyG index and CMM progression in patients with baseline CMD is likely a false-positive result attributable to residual confounding, with no causal link supported by rigorous longitudinal or genetic evidence. Thus, while TyG is valuable for predicting initial CMD onset, it lacks clinical utility for forecasting progression to multimorbidity in established patients, necessitating exploration of alternative biomarkers for this critical transition.

Indexed as

Blood GlucoseCardiovascular DiseasesMultimorbidityTriglyceridesAgedChinaCross-Sectional StudiesDisease ProgressionFalse Positive ReactionsFemaleHumansLongitudinal StudiesMaleMendelian Randomization AnalysisMiddle AgedRetrospective StudiesBlood GlucoseTriglyceridescardiometabolic multimorbidityCohort studyinsulin resistanceMendelian randomizationTriglyceride Glucose index

Identifiers

PMID41686549
PMCPMC12908751

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.