Table 3.

Predictors of death-censored technique survival in 3702 incident PD patients in Australia and New Zealand, based on the results of univariate and multivariate Cox regression analysesa

Characteristic (n = 998 Events)UnivariateMultivariate
HRPHRP
PET classes
    low0.82 (0.60 to 1.13)0.2280.82 (0.59 to 1.13)0.225
    low-averageRefRefRef
    high average0.99 (0.87 to 1.15)0.9881.04 (0.90 to 1.21)0.605
    high1.16 (0.96 to 1.39)0.1151.23 (1.01 to 1.49)0.036
Age (per decade)0.98 (0.94 to 1.03)0.4250.97 (0.92 to 1.02)0.177
Male gender1.15 (0.99 to 1.26)0.0801.03 (0.90 to 1.17)0.691
Race
    whiteRefRef
    Aboriginal/TSI1.48 (1.18 to 1.86)0.011.32 (1.02 to 1.71)0.035
    Maori/PI0.88 (0.73 to 1.05)0.1590.80 (0.65 to 0.97)0.027
    Asian0.61 (0.47 to 0.78)< 0.0010.66 (0.51 to 0.86)0.002
    other0.71 (0.42 to 1.20)0.1960.74 (0.42 to 1.27)0.273
Smoking
    current smoker0.94 (0.79 to 1.13)0.89 (0.74 to 1.09)
    former or never smokerRef0.521Ref0.259
Treated hypertension1.18 (0.95 to 1.47)0.1361.16 (0.93 to 1.46)0.195
Chronic lung disease0.98 (0.81 to 1.18)0.821.02 (0.84 to 1.24)0.833
Coronary artery disease1.05 (0.93 to 1.19)0.4641.09 (0.94 to 1.27)0.248
Peripheral vascular disease1.02 (0.89 to 1.17)0.7960.99 (0.83 to 1.17)0.888
Cerebrovascular disease0.89 (0.74 to 1.07)0.2210.89 (0.73 to 1.10)0.288
Diabetes1.01 (0.89 to 1.14)0.910.96 (0.82 to 1.11)0.552
BMI category
    <18.5 kg/m20.75 (0.50 to 1.12)0.1610.76 (0.51 to 1.15)0.196
    18.5 to 25 kg/m2RefRef
    25 to 30 kg/m21.19 (1.03 to 1.37)0.0161.18 (1.02 to 1.37)0.031
    >30 kg/m21.35 (1.15 to 1.59)< 0.0011.37 (1.16 to 1.64)< 0.001
Weekly peritoneal Kt/V (per 0.1 unit)0.98 (0.97 to 0.99)< 0.0010.98 (0.97 to 0.99)< 0.001
Residual renal function (per L/wk per 1.73 m2)0.99 (0.99 to 1.00)0.0070.99 (0.99 to 1.00)0.004
Vintage year
    April 1999 to March 2000RefRef
    April 2000 to March 20010.81 (0.69 to 0.95)0.0110.82 (0.69 to 0.97)0.023
    April 2001 to March 20020.85 (0.72 to 1.01)0.0710.92 (0.77 to 1.11)0.408
    April 2002 to March 20030.90 (0.74 to 1.09)0.2860.96 (0.78 to 1.20)0.720
    April 2003 to March 20040.73 (0.51 to 1.05)0.0880.79 (0.55 to 1.15)0.227
  • a HR, hazard ratio.