Table 4.

Predictors of survival in 3702 incident PD patients in Australia and New Zealand, based on the results of univariate and multivariate Cox regression analyses

Characteristic (n = 688 Events)UnivariateMultivariate
HRPHRP
PET classes
    low1.14 (0.80 to 1.64)0.4731.06 (0.72 to 1.55)0.766
    low-averageRefRef
    high average1.20 (0.99 to 1.45)0.0521.22 (1.00 to 1.48)0.046
    high1.43 (1.14 to 1.80)0.0021.34 (1.05 to 1.71)0.017
Age (per decade)1.49 (1.40 to 1.59)< 0.0011.53 (1.41 to 1.65)< 0.001
Male gender0.96 (0.83 to 1.11)0.5760.94 (0.79 to 1.10)0.420
Race
    whiteRefRef
    Aboriginal/TSI1.46 (1.09 to 1.94)0.0111.94 (1.39 to 2.70)< 0.001
    Maori/PI0.96 (0.78 to 1.19)0.7351.08 (0.84 to 1.38)0.560
    Asian0.64 (0.48 to 0.86)0.0030.68 (0.50 to 0.93)0.017
    other0.37 (0.15 to 0.89)0.0270.48 (0.20 to 1.17)0.106
Smoking
    current smoker1.12 (0.95 to 1.51)1.00 (0.78 to 1.28)
    former or never smokerRef0.1280.997
Treated hypertension1.20 (0.66 to 1.05)0.1260.72 (0.56 to 0.92)0.008
Chronic lung disease1.49 (1.22 to 1.81)< 0.0011.05 (0.85 to 1.30)0.665
Coronary artery disease2.53 (2.17 to 2.95)< 0.0011.45 (1.21 to 1.74)< 0.001
Peripheral vascular disease2.41 (2.07 to 2.80)< 0.0011.50 (1.29 to 1.80)< 0.001
Cerebrovascular disease2.06 (1.73 to 2.45)< 0.0011.24 (1.02 to 1.51)0.033
Diabetes1.64 (1.41 to 1.90)< 0.0011.62 (1.35 to 1.95)< 0.001
BMI category
    <18.5 kg/m21.25 (0.85 to 1.81)0.251.61 (1.09 to 2.36)0.017
    18.5 to 25 kg/m2RefRef
    25 to 30 kg/m21.04 (0.87 to 1.23)0.710.90 (0.75 to 1.09)0.287
    >30 kg/m21.20 (0.98 to 1.46)0.081.11 (0.89 to 1.38)0.362
Weekly peritoneal Kt/V (per 0.1 unit)0.98 (0.97 to 0.99)< 0.0010.98 (0.97 to 0.99)0.002
Residual renal function (per 1 L/wk per 1.73 m2)0.997 (0.99 to 1.00)0.0380.99 (0.99 to 1.00)0.034
Vintage year
    April 1999 to March 2000RefRef
    April 2000 to March 20011.07 (0.87 to 1.30)0.521.08 (0.88 to 1.37)0.478
    April 2001 to March 20021.04 (0.83 to 1.30)0.741.04 (0.82 to 1.33)0.748
    April 2002 to March 20031.06 (0.81 to 1.39)0.681.15 (0.85 to 1.56)0.365
    April 2003 to March 20041.39 (0.87 to 2.21)0.1741.50 (0.90 to 2.51)0.124