Table 3.

Results of Cox proportional hazard models

Risk FactorAll-Years MortalityFirst-Year Mortality
ParameterHazard Ratio (95% CI)ParameterHazard Ratio (95% CI)
a P < 0.05.
Hematocrit−0.01630.98 (0.96 to 1.003)−0.024290.98 (0.95 to 1.00)a
Serum creatinine0.144761.16 (1.02 to 1.31)a0.136491.15 (0.98 to 1.33)
Age0.014131.014 (1.01 to 1.03)a0.012061.012 (0.998 to 1.026)
Male gender0.28061.32 (1.04 to 1.68)a0.303441.36 (1.01 to 1.82)a
White race0.209491.23 (0.95 to 1.60)0.176941.19 (0.86 to 1.66)
Comorbid conditions
    stroke0.147911.14 (0.84 to 1.54)0.131181.14 (0.82 to 1.56)
    MI0.130161.14 (0.82 to 1.54)0.271951.31 (0.90 to 1.91)
    CAD−0.228440.80 (0.60 to 1.05)−0.212190.81 (0.56 to 1.16)
    AP−0.084250.92 (0.67 to 1.26)−0.273090.76 (0.50 to 1.15)
Hypertension−0.069850.93 (0.74 to 1.18)−0.124340.89 (0.66 to 1.19)
Diabetes0.023921.02 (0.82 to 1.28)0.092781.10 (0.83 to 1.45)
Previous CHF0.396441.49 (1.14 to 1.94)a0.478941.61 (1.14 to 2.29)a
Left ventricular dysfunction
    diastolic11
    systolic0.28531.33 (0.98 to 1.80)0.484551.62 (1.085 to 2.43)a
    not determined0.231081.26 (0.95 to 1.67)0.405461.50 (1.03 to 2.19)a
Functional status at discharge
    normal11
    mild impairment−0.099420.905 (0.69 to 1.19)−0.139320.87 (0.61 to 1.24)
    moderate impairment0.119771.13 (0.86 to 1.48)a0.196971.22 (0.88 to 1.69)
    severe impairment0.904282.47 (1.39 to 4.38)a0.924792.52 (1.27 to 4.99)a
Charlson score0.032061.03 (1.01 to 1.06)a0.019851.02 (0.99 to 1.05)
ACEI at discharge−0.155690.86 (0.68 to 1.07)−0.0860.91 (0.69 to 1.22)