Table 4. Proportional hazards models of mortality using combined biochemical parameters

VariableAll Patients
RR (95% CI)P Value
Age (per 10 yr)1.64 (1.45–1.86)<0.001
Gender (female versus male)1.13 (0.83–1.55)0.450
Diabetes1.85 (1.32–2.58)<0.001
Dialysis Type (PD versus HD)1.26 (0.88–1.79)0.210
Dialysis duration (per 1 mo)1.01 (1.00–1.01)0.014
Race
    White1.00
    Asian0.58 (0.40–0.80)0.004
    other0.59 (0.37–0.95)0.029
Dialysis adequacy
    PRU ≤65, Kt/V ≤1.81.00
    PRU 66–70, Kt/V 1.9–2.10.67 (0.43–1.07)0.091
    PRU >70, Kt/V >2.10.88 (0.54–1.44)0.602
Hemoglobin (per 5 g/L)0.96 (0.91–1.01)0.097
Albumin (per 1 g/L)0.92 (0.88–0.95)<0.001
Pi, Ca, and iPTH
    Pi <1.78, Ca <2.5, iPTH >27.31.00
    Pi <1.78, Ca >2.5, iPTH >27.32.67 (0.61–11.76)0.195
    Pi <1.78, Ca >2.5, iPTH <27.32.08 (1.08–3.99)0.029
    Pi <1.78, Ca <2.5, iPTH <27.31.81 (1.10–2.97)0.020
    Pi >1.78, Ca <2.5, iPTH <27.32.60 (1.43–4.73)0.002
    Pi >1.78, Ca <2.5, iPTH >27.32.90 (1.59–5.28)<0.001
    Pi >1.78, Ca >2.5, iPTH >27.33.71 (1.53–9.03)0.004
    Pi >1.78, Ca >2.5, iPTH <27.34.30 (2.01–9.22)<0.001