Table 3.

Case mix– and laboratory-adjusted HRs for hospitalization in patients who converted from catheters to either fistula or graft during a 4-month period, showing consistency among three Cox models with varying assumptions

Hospitalization EventHR95% CI
All causes
    model 10.690.64 to 0.74
    model 20.670.63 to 0.73
    model 30.710.65 to 0.78
Vascular access related
    model 10.470.38 to 0.57
    model 20.430.34 to 0.55
    model 30.440.34 to 0.57
Sepsis/bacteremia
    model 10.310.22 to 0.43
    model 20.290.19 to 0.45
    model 30.270.18 to 0.43
  • Model 1: Primary analysis, 12 months of follow-up (n = 70,852); model 2: Short-term (8 months) follow-up (n = 70,852), consistent with previous report (11); model 3: Excluded patients who were hospitalized during the 4-month conversion period (n = 47,472). All models were adjusted for age, gender, race, diabetes, vintage, and baseline laboratory values: eKt/V, albumin, hemoglobin, and phosphorus. All P < 0.0001, compared with patients who continued dialysis via catheter as the reference group.