Table 3.

Association between POx concentration and CV events in the ESRD patients

Variable	Value	SD	Wald χ2	p value	HR (95% CI)
Unadjusted	0.028	0.012	5.808	0.016	1.03 (1.005–1.05)
Model 1	0.074	0.023	10.732	0.001	1.1 (1.46–1.15)
Model 2	0.131	0.037	12.642	< 0.001	1.14 (1.07–1.22)

Model 1 was adjusted for age, sex, and dialysis modality; Model 2 was additionally adjusted for cardiovascular disease risk factors, including diabetic status, systolic blood pressure, body mass index, serum uric acid, and variables that were statistically significant in the univariate analysis (hemoglobin, triglycerides, interleukin-6).

POx, plasma oxalic acid; CV, cardiovascular; ESRD, end-stage renal disease; SD, standard error; HR, hazard ratio; CI, confidence interval.