In this retrospective cohort study, our data reveal that patients with a higher level of UA at baseline (threshold value > 5.6 mg/dl) had a higher risk of all-cause mortality compared to patients with a lower level
ofUA. Similar results were attained when potentially confounding factors (such as baseline characteristics, medical history, and medication history) were adjusted using multivariate logistic regression analysis and Cox proportional-hazard regression model (HR= 1.42, 95% CI: 1.05 to 1.87), which means that the UA level might be used to better stratify cardiovascular risk in clinical practice.