Table 5. Cox proportional model for patient with post operative atrial fibrillation .
| Parameters | Hazard ratio | 95% CI | p value |
| Age (year) | 1.029 | 0.994-1.064 | 0.106 |
| Smoking (yes/no) | 0.928 | 0.421-2.048 | 0.854 |
| Gender (female/male) | 0.938 | 0.379-2.322 | 0.891 |
| DM (yes/no) | 1.378 | 0.614-3.092 | 0.437 |
| Lipid therapy (yes/no) | 0.418 | 0.190-0.915 | 0.029* |
| eGFR < 60 mL/min/1.73 m2 | 3.174 | 1.432-7.037 | 0.004# |
| IABP | 1.556 | 0.605-3.999 | 0.359 |
| Troponin-I | 1.014 | 0.998-1.031 | 0.083 |
| CRP | 1.011 | 0.964-1.059 | 0.656 |
| Emergency (yes/no) | 1.915 | 0.905-4.051 | 0.089 |
| CK-MB | 0.997 | 0.995-1.000 | 0.064 |
| LV dysfunction | 1.726 | 0.759-3.926 | 0.193 |
| Na+ | 1.112 | 1.047-1.182 | 0.001# |
CK-MB, creatine kinase-MB; CRP, c reactive protein; DM, diabetes mellitus; eGFR, estimated glomerular filtration rate; IABP, intra-aortic balloon pump; LV dysfunciton, left ventricular dysfunction; Na, sodium.
* p-value < 0.05; # p-value < 0.01.