Vitamin D's Role in Diabetes and Mortality
Author Information
Author(s): Zhang Fan, Li Wenjian
Primary Institution: Changzhou Clinical College, Xuzhou Medical University, Changzhou, China
Hypothesis
Vitamin D levels may mediate the relationship between the triglyceride glucose index and mortality in diabetic patients.
Conclusion
Vitamin D partially mediates the association between the triglyceride glucose index and mortality in diabetic patients.
Supporting Evidence
- The TyG index was positively associated with all-cause and cardiovascular mortality in diabetic patients.
- Vitamin D levels were negatively associated with mortality, showing a U-shaped relationship.
- Vitamin D partially mediated the association between TyG and all-cause mortality.
Takeaway
This study found that vitamin D can help reduce the risk of death in people with diabetes by affecting how triglycerides impact their health.
Methodology
Data from the NHANES database was analyzed using multivariable Cox proportional risk regression models and causal mediation analysis.
Potential Biases
Potential biases due to missing data and measurement errors in vitamin D and TyG levels.
Limitations
The study did not account for certain confounding factors such as socioeconomic status and dietary habits, which may affect the results.
Participant Demographics
Participants included 6,318 diabetic patients, with a higher proportion of males in the non-survivor group.
Statistical Information
P-Value
p<0.001
Confidence Interval
95% CI: -12.55, -1.71
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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