Table 4.

Cause-specific relative hazard for transfer to HD (multivariate analysis using a Cox model with center as random effect)

CovariateAdjusted Cause-Specific RH (95% CI)
Per year of age0.99 (0.99–0.99)
Male sex1.13 (1.04–1.23)
Modified CCI (per unit)1.01 (0.98–1.03)
Underlying nephropathy
 unknownReference
 interstitial nephritis0.95 (0.78–1.16)
 GN1.08 (0.93–1.26)
 diabetes1.14 (0.98–1.33)
 PKD0.96 (0.78–1.17)
 miscellaneous0.86 (0.71–1.14)
 urologic0.76 (0.58–0.98)
 vascular0.91 (0.79–1.05)
 systemic disease1.12 (0.86–1.46)
HD before PD1.31 (1.19–1.46)
Failed transplantation1.63 (1.31–2.03)
Early peritonitis1.53 (1.13–2.07)
Center size categories (new patients per year)
 <10Reference
 10–200.84 (0.77–0.93)
 >200.83 (0.72–0.94)
Assisted PD0.85 (0.77–0.94)
  • RH, relative hazard; CI, confidence interval; CCI, Charlson comorbidity index; PKD, polycystic kidney disease; HD, hemodialysis; PD, peritoneal dialysis.