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Table 7 Cox multivariate regression analysis investigating covariates associated with 1-year mortality

From: Improved outcome of patients with diabetes mellitus with good glycemic control in the cardiac intensive care unit: a retrospective study

Parameter B SE Wald Sig. HR 95% CI HR
Lower Upper
1-year mortality (model without HbA1c)
 Sex 0.742 0.412 3.237 0.072 2.099 0.936 4.709
 Age 0.049 0.022 4.791 0.029 1.050 1.005 1.097
 Pulmonary edema 1.794 0.435 17.033 0.000 6.011 2.565 14.089
 Chronic renal failure − 0.350 0.627 0.311 0.577 0.705 0.206 2.407
 Smoking − 12.258 451.126 0.001 0.978 0.000 0.000 0.000
 Charlson comorbidity index 0.199 0.103 3.748 0.053 1.221 0.998 1.494
 Hypoglycemia − 0.705 1.049 0.452 0.501 0.494 0.063 3.861
 Glucose control − 0.891 0.437 4.150 0.042 0.410 0.174 0.967
 Acute coronary syndrome − 0.121 0.403 0.090 0.765 0.886 0.403 1.952
1-year mortality (model with HbA1c)
 Sex 1.280 0.750 2.910 0.088 3.595 0.826 15.640
 Age 0.130 0.047 7.751 0.005 1.139 1.039 1.248
 Pulmonary edema 3.196 0.811 15.518 0.000 24.423 4.981 119.751
 Chronic renal failure − 1.133 1.619 0.490 0.484 0.322 0.013 7.682
 Smoking − 12.752 1066.916 0.000 0.990 0.000 0.000 0.000
 Charlson comorbidity index 0.187 0.196 0.919 0.338 1.206 0.822 1.770
 Hypoglycemia − 14.473 7187.596 0.000 0.998 0.000 0.000 0.000
 Glucose control − 0.442 0.918 0.232 0.630 0.643 0.106 3.882
 Acute coronary syndrome − 0.075 0.810 0.009 0.926 0.928 0.190 4.537
 HbA1c 0.249 0.253 0.966 0.326 1.282 0.781 2.105