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Association between triglyceride to high-density lipoprotein cholesterol ratio and new-onset diabetes mellitus
Chunhui Yin1, Qi Qi1,2, Xinyu Wu1,2
1Department of Cardiology, Tangshan Gongren Hospital, Tangshan, China.
Objective:
To examine the association between triglyceride to high-density lipoprotein cholesterol (TG/HDL-C) ratio and the onset of diabetes mellitus (DM) within an ongoing prospective cohort in China.
Subjects And Methods:
Participants were categorized into four groups according to their TG/HDL-C ratio quartiles. Kaplan-Meier estimator determined the cumulative incidence during follow-up and generated time-to-event curves. Additionally, a Cox proportional hazards regression analysis assessed the hazard ratios (HRs) and their corresponding 95% confidence intervals (CIs) for new-onset DM. A sensitivity analysis was also performed to mitigate the possible effects of reverse causation.
Results:
During a median follow-up duration of 13.67 years, 38,210 individuals developed DM. Kaplan-Meier curves revealed that the cumulative DM incidence across quartiles 1 to 4 was 40.95%, 42.04%, 41.42%, and 44.38%, respectively. The risk of developing DM increased over time according to the baseline TG/HDL-C ratio quartiles. After adjusting for potential confounding variables, the HRs reached 1.045 (95% CI, 1.015-1.076), 1.026 (95% CI, 0.996-1.058), and 1.095 (95% CI, 1.058-1.133) for quartiles 2, 3, and 4, respectively (P for trend < 0.001). These findings were consistent in sensitivity analyses, with HRs of 1.045 (95% CI, 1.016-1.075), 1.026 (95% CI, 0.996-1.058), and 1.095 (95% CI, 1.058-1.133) for quartiles 2, 3, and 4, respectively (P for trend < 0.0001).
Conclusion:
TG/HDL-C ratio is significantly and positively associated with new-onset DM.
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