Table 2.

Adjusted risks of 1-, 5-, and 10-yr mortality by BUN levela

ParameterBUN
<1212 to <1414 to <1616 to 17>17 to <1919 to <2121 to <2424 to <2828 to <36≥36
1-yr
        HR1.001.001.071.111.111.181.251.311.521.84
        95% CI0.93 to 1.081.00 to 1.141.03 to 1.201.04 to 1.181.11 to 1.261.18 to 1.331.23 to 1.391.42 to 1.611.73 to 1.96
5-yr
        HR1.000.940.991.031.031.081.141.221.401.72
        95% CI0.89 to 0.980.95 to 1.040.97 to 1.070.98 to 1.071.04 to 1.131.09 to 1.181.17 to 1.271.34 to 1.461.65 to 1.80
10-yr
        HR1.000.940.960.991.001.031.091.161.331.64
        95% CI0.90 to 0.980.92 to 0.990.95 to 1.030.96 to 1.030.99 to 1.061.05 to 1.131.12 to 1.201.29 to 1.381.59 to 1.70
        Subset HR1.000.940.940.970.991.011.081.141.311.67
  • a Adjusted models include age, gender, race, comorbidities, laboratory values, hospital events, and hospital/physician characteristics. Subset refers to the adjusted 10-yr HR after exclusion of patients who died within 30 d of hospitalization (n = 102,174 patients included).