Table 2.
Preoperative variables and their effect on POAF.
| Preoperative variables | NAFG (n: 78) | AFG (n: 25) | P-value |
|---|---|---|---|
| EF (%) (median-IQR) | 55 (50-55) | 55 (53-55) | 0.206 |
| Left atrial diameter (mm) (mean±SD) | 34.8±3.14 | 35.88±3.66 | 0.194 |
| Preoperative PO₂ (mmHg) (mean±SD) | 80.02±11.99 | 75.92±10.31 | 0.164 |
| Preoperative Hgb (g/dl) (mean±SD) | 14.31±1.67 | 14.8±1.67 | 0.255 |
| Preoperative Hct (%) (mean±SD) | 42.8±4.71 | 43.16±4.55 | 0.860 |
Independent samples t-test and Mann-Whitney U test AFG=atrial fibrillation group; EF=ejection fraction; Hct=hematocrit; Hgb=hemoglobin; IQR=interquartile range; NAFG=non-atrial fibrillation group; PO2=partial pressure of oxygen; POAF=postoperative atrial fibrillation; SD=standard deviation