Table 3. The prognostic values of UA as continuous or categorical variable for cardiovascular mortality.

Subjects	Age, gender-adjusted in Model 1		Multivariate-adjusted in Model 2		Multivariate-adjusted in Model 3
	Hazard ratio (95% CI)	P	Hazard ratio (95% CI)	P	Hazard ratio (95% CI)	P
UA (per 1 mg/dL increase)	1.12(1.05, 1.20)	0.001	1.05(0.95, 1.17)	0.35	1.04(0.89, 1.20)	0.65
Gender-specific tertiles of UA
Tertile 1	Reference		Reference		Reference
Tertile 2	1.56(1.13, 2.15)	0.007	1.48(0.96, 2.29)	0.08	1.29(0.75, 2.23)	0.35
Tertile 3	1.69(1.21, 2.38)	0.002	1.50(0.93, 2.41)	0.09	1.35(0.74, 2.46)	0.33

Abbreviation: UA, uric acid; CI, confidence interval.

Model 1: Age, center size-adjusted, gender-adjusted only UA as continuous variable.

Model 2: Age, residual renal function, serum albumin, hemoglobin,phosphate, C-reactive protein and center size-adjusted, gender-adjusted only UA as continuous variable.

Model 3: Age, residual renal function, serum albumin, hemoglobin,phosphate, C-reactive protein, the history of cardiovascular disease, diabetes, body mass index, mean arterial pressure, LDL cholestrol and center size-adjusted, gender-adjusted only UA as continuous variable.