Evidence map›Paper›PMID 38926821›Full record

ArticleCardiovascular diabetology2024

Limitations of using COX proportional hazards model in cardiovascular research.

Nan Jiang, Yongfa Wu, Chengjia Li

Abstract readLetter
In one paragraph

Article in Cardiovascular diabetology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
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

3 authors.

Nan JiangGeriatric Psychiatry, Second People's Hospital of Zhoushan, Zhoushan, 316000, China.
Yongfa WuGeriatric Psychiatry, Second People's Hospital of Zhoushan, Zhoushan, 316000, China.
Chengjia LiHeilongjiang University of Chinese Medicine , Harbin, 150000, China. hymanli001@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The article by Zhao et al. titled "Associations of Triglyceride-Glucose (TyG) Index with Chest Pain Incidence and Mortality among the U.S. Population" provides valuable insights into the positive correlation between the TyG index and chest pain incidence, as well as a nonlinear relationship with mortality. However, the use of the COX proportional hazards model in their analysis presents several limitations. The assumption of constant hazard ratios over time may not hold, potentially leading to biased estimates. The model's struggle with time-dependent covariates and the possibility of residual confounding are notable concerns. Additionally, the study's subgroup analyses might suffer from reduced statistical power, and potential interactions with other metabolic markers were not explored. Considering these limitations, future research should adopt alternative approaches, such as time-varying covariate models, to provide a more comprehensive understanding of the relationship between the TyG index and cardiovascular outcomes.

Indexed as

Blood GlucoseCardiovascular DiseasesProportional Hazards ModelsTriglyceridesBiomarkersBiomedical ResearchChest PainHumansIncidenceRisk AssessmentRisk FactorsTime FactorsBiomarkersBlood GlucoseTriglyceridesCOX modelRight-censoredTriglyceride-glucose index

Identifiers

PMID38926821
PMCPMC11210144

What OpenQuestion 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 OpenQuestion graph.