Table 2

Predictors of in-hospital mortality by univariate and multivariate Cox analysis

UnivariateMultivariate
VariableHR95% CIp ValueHR95% CIp Value
Age, per year (continuous)0.990.97 to 1.010.360.980.96 to 1.020.11
Gender, male vs female1.340.66 to 2.720.421.150.55 to 2.390.72
Autumn, vs other seasons3.011.82 to 5.00<0.012.051.15 to 3.640.02
 Autumn vs winter2.351.24 to 4.440.01
 Autumn vs spring4.101.94 to 8.67<0.01
 Autumn vs summer2.921.34 to 6.40<0.01
Pericardial effusion1.340.76 to 2.350.31
WBC count, per 1×109 cells/L (continuous)1.211.15 to 1.26<0.011.151.09 to 1.21<0.01
Platelet count, per 1×109 cells/L (continuous)0.990.98 to 0.99<0.010.990.99 to 0.990.01
d-Dimer, per 1 mg/L (continuous)1.011.01 to 1.13<0.011.020.97 to 1.070.42
C-reactive protein, per 1 mg/L (continuous)1.001.00 to 1.010.06
Serum creatinine, per 1 μmol/L (continuous1.011.00 to 1.01<0.011.000.99 to 1.000.86
Ascending aorta diameter, per 1 mm (continuous)1.010.98 to 1.030.54
Surgical intervention0.010.00 to 0.05<0.010.010.00 to 0.06<0.01
  • WBC, white blood cell.