Table 3.

Results of survival analysis for quartiles of 12-month time-averaged phosphate for all patients (CKD stages 3 to 5)

N = 1203, Quartiles: 12-Month Time-Averaged Phosphate (mmol/L)All-Cause MortalityCardiovascular Mortality
HR (95% CI)PHR (95% CI)P
<1.021.01.0
1.02 to 1.151.2 (0.8, 1.9)0.41.5 (0.8, 2.9)0.2
1.16 to 1.341.2 (0.8, 1.8)0.51.2 (0.6, 2.3)0.7
>1.341.8 (1.1, 2.9)0.011.8 (0.9, 3.9)0.1
  • Analysis adjusted for age, gender, proteinuria, diabetes, hemoglobin, systolic blood pressure, current smoking status, cardiovascular disease, eGFR, and vitamin D analog and phosphate binder use.