Table 3.

Multivariable Cox proportional hazards models predicting all-cause and cardiac mortality risk of 5274 incident HD patients after CABGa

Risk FactorAll-Cause Mortality Hazard Ratio (95% CI)P ValueCardiac Mortality Hazard Ratio (95% CI)P Value
Age ≥ 65 y1.56 (1.40 to 1.74)<0.00011.37 (1.17 to 1.61)<0.0001
Male gender0.98 (0.90 to 1.07)0.690.98 (0.86 to 1.11)0.70
Race (referent = white)
    Asian0.99 (0.77 to 1.26)0.901.29 (0.93 to 1.79)0.13
    black0.84 (0.75 to 0.95)0.0040.87 (0.73 to 1.03)0.11
    Native American0.80 (0.53 to 1.21)0.290.59 (0.30 to 1.20)0.14
    other1.08 (0.67 to 1.75)0.750.97 (0.46 to 2.05)0.94
Medicaid coverage at HD start0.92 (0.82 to 1.02)0.110.83 (0.70 to 0.97)0.02
No. of cardiovascular conditions at HD start1.05 (1.02 to 1.09)0.0011.07 (1.02 to 1.12)0.004
Hemoglobin1.02 (0.99 to 1.05)0.211.02 (0.98 to 1.06)0.44
Serum albumin0.91 (0.85 to 0.97)0.0061.02 (0.92 to 1.13)0.78
Diabetic ESRD0.95 (0.87 to 1.03)0.201.07 (0.94 to 1.21)0.33
AMI before CABG1.11 (1.02 to 1.20)0.021.29 (1.14 to 1.46)<0.0001
COPD1.27 (1.12 to 1.45)0.00031.25 (1.03 to 1.52)0.03
Nonambulatory1.70 (1.40 to 2.06)<0.00011.60 (1.19 to 2.16)0.002
Vintage1.01 (1.01 to 1.02)<0.00011.01 (1.00 to 1.01)0.01
Recent hospitalizationb7.76 (7.13 to 8.44)<0.00018.11 (7.16 to 9.20)<0.0001
Cardiac rehabilitationb0.65 (0.56 to 0.76)<0.00010.64 (0.51 to 0.81)0.0002
  • a Restricted to patients who survived at least 90 d after undergoing CABG.

  • b Time-varying covariate.