Table 3.

Multivariate Cox regression analysis of 12-month mortality in study patients (n=901) according to baseline quartile of SAL and variables with P-values less than 0.05 in univariate Cox analysis

Variable	Multivariate HR (95% CI)	P-value
Age (years) (increment of 1 year)	1.05 (1.02–1.08)	0.003
Hemoglobin (g/dL) (increment of 1 g/dL)	0.74 (0.58–0.94)	0.012
Log hsCRP (mg/L) (increment of 10 mg/mL)	2.51 (1.34–4.70)	0.004
First quartile SAL as reference (HR =1)
Second quartile SAL	2.46 (0.45–13.33)	0.462
Third quartile SAL	1.31 (1.12–1.53)	0.038
Fourth quartile SAL	3.19 (1.08–8.62)	0.048

Abbreviations: HR, hazard ratio; CI, confidence interval; hsCRP, high sensitivity C-reactive protein; SAL, serum aluminum levels.