Serum uric acid level as a cardio-cerebrovascular event risk factor in middle-aged and non-obese Chinese men
Zhi-Jun Li1, Chen-Ju Yi1, Jing Li1
1Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Insights
High serum uric acid levels significantly increase the risk of cardio-cerebrovascular events in middle-aged Chinese men. This finding highlights serum uric acid as a crucial risk factor for cardiovascular health.
Area of Science:
- Cardiovascular epidemiology
- Metabolic syndrome research
- Clinical biochemistry
Background:
- The association between serum uric acid and cardio-cerebrovascular diseases remains debated.
- Understanding this relationship is crucial for preventative strategies.
Purpose of the Study:
- To investigate the link between serum uric acid levels and cardio-cerebrovascular event risk.
- Focus on middle-aged, non-obese Chinese men.
Main Methods:
- Prospective cohort study with 3152 participants followed for 52 months.
- Cox proportional hazards models and generalized additive models used.
- Threshold effect analysis identified a critical serum uric acid level (372 μmol/L).
Main Results:
- Elevated serum uric acid levels (Q2-Q4 vs. Q1) showed increased hazard ratios for cardio-cerebrovascular events.
- Higher incidence of events observed in the high serum uric acid group (above 372 μmol/L).
- Prognostic scores demonstrated strong predictive accuracy for 3- and 5-year event risk (ROC AUC 0.790 and 0.777).
Conclusions:
- Serum uric acid is a significant and independent risk factor for cardio-cerebrovascular events.
- A specific threshold of serum uric acid (372 μmol/L) indicates heightened risk.
- Findings support monitoring uric acid levels for cardiovascular risk assessment.
Aim:
The role of uric acid as a risk factor for cardio-cerebrovascular diseases is controversial. In this study, we aimed to investigate the relationship between serum uric acid level and the risk of cardio-cerebrovascular events in middle-aged and non-obese Chinese men.
Methods:
We included 3152 participants from the health examination center of Tongji Hospital from June 2007 to June 2010. Clinical examination and medical records were collected at the annual health examination. The hazard ratios (HRs) of uric acid for cardio-cerebrovascular events were calculated by Cox proportional hazards models. Generalized additive model and threshold effect analysis were used to explore the non-linear relationship between serum uric acid level and the incidence of cardio-cerebrovascular event.
Result:
The mean follow-up time was 52 months. When the participants were classified into four groups by the serum acid quarter (Q1-Q4), the HRs (95% CI) of Q2-Q4 for cardio-cerebrovascular events were 1.26 (0.83, 1.92), 1.97 (1.33, 2.91) and 2.05 (1.40, 3.01), respectively, compared with the reference (Q1). The actual incidence and conditional incidence of cardio-cerebrovascular events in the high serum acid group were higher than those in the low serum acid group, which were stratified by the turning point (sUA = 372 μmol/L). We also showed a strong prognostic accuracy of the multiple variable-based score in 3 years and 5 years, with area under the receiver operating characteristic (ROC) curve of 0.790 (0.756-0.823) and 0.777 (0.749-0.804), respectively.
Conclusion:
Serum uric acid level is a strong risk factor for cardio-cerebrovascular events.
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