Table 2.

Results of the piecewise proportional hazards model for all-cause PD technique failure

Hazard Ratio (95% Confidence Interval)
Univariate MultivariateaIPTCWb
Overall (n=13,120)
 1995–20001.01.01.0
 2001–20050.91 (0.84, 0.98)0.91 (0.83, 0.99)0.89 (0.82, 0.98)
 2006–20090.95 (0.87, 1.04)0.91 (0.82, 1.01)0.95 (0.85, 1.06)
Year 1 (n=13,120)
 1995–20001.01.01.0
 2001–20050.91 (0.80, 1.03)0.91 (0.80, 1.04)0.90 (0.78, 1.03)
 2006–20091.03 (0.90, 1.17)0.99 (0.86, 1.14)1.03 (0.88, 1.19)
Year 2 (n=11,283)
 1995–20001.01.01.0
 2001–20050.93 (0.81, 1.07)0.93 (0.81, 1.07)0.93 (0.80, 1.08)
 2006–20090.96 (0.83, 1.12)0.92 (0.79, 1.08)0.96 (0.81, 1.14)
Year 3 (n=8369)
 1995–20001.01.01.0
 2001–20050.89 (0.76, 1.03)0.88 (0.75, 1.03)0.84 (0.70, 1.02)
 2006–20090.79 (0.65, 0.96)0.75 (0.62, 0.92)0.80 (0.63, 1.02)
  • PD, peritoneal dialysis; IPTCW, inverse probability of treatment and censoring weighting.

  • a Adjusted for age, race, sex, body mass index, ESRD comorbidity index, primary diagnosis, PD modality (automated PD versus continuous ambulatory PD), province, and PD center size. Number of patients in analysis in year 1: 5183 in 1995–2000, 4316 in 2001–2005), and 3621 in 2006–2009; in year 2: 4329 in 1995–2000, 3744 in 2001–2005, and 3210 in 2006–2009; in year 3: 3364 in 1995–2000, 3021 in 2001–2005, and 1984 in 2006–2009.

  • b Adjusted as above but weighed for treatment era, and inverse probablity of death and transplantation.