Table 4.
Demographic characteristics of the study populations (matched group from non-new-onset atrial fibrillation group).
| CABG | |||
|---|---|---|---|
| AF+ | AF- | P-value | |
| Variables | (n=80) | (n=153) | |
| Age (years) | 59 (52.5-62) | 57 (50-64.5) | 0.990 |
| Male gender (n, %) | 57 (71.2%) | 119 (77.7%) | 0.271 |
| Diabetes mellitus (n, %) | 31 (38.7%) | 56 (36.6%) | 0.747 |
| Hypertension (n, %) | 52 (65%) | 91 (59.4%) | 0.411 |
| Dyslipidemia (n, %) | 12 (15%) | 22 (14.3%) | 0.899 |
| COPD (n, %) | 6 (7.5%) | 7 (4.5%) | 0.356 |
| Smoking (n, %) | 24 (30%) | 52 (33.9%) | 0.538 |
| BMI (kg/m2) | 27.4±5.2 | 27.7±4.7 | 0.585 |
| LVEF (%) | 50.4±11.5 | 51.6±8.1 | 0.346 |
| Left atrium (mm) | 3.8 ±0.4 | 3.7±0.4 | 0.412 |
| Laboratory findings of the study populations | |||
| WBC (103/µL) | 9.6±4.9 | 8.4±3.4 | 0.056 |
| Platelets (103/µL) | 265 (240-342) | 240 (205-258) | < 0.001 |
| Neutrophil (103/µL) | 7.4 (4.5-8.5) | 3.8 (3-5.9) | < 0.001 |
| Lymphocyte (103/µL) | 1.49 (1.1-1.9) | 1.68 (1-2.5) | 0.332 |
| C-reactive protein (mg/l) | 4.7 (2.3-6.4) | 3.5 (1.3-4) | < 0.004 |
| Neutrophil/lymphocyte ratio | 3.9 (3-5.9) | 2.8 (1.6-3) | < 0.001 |
| Platelet/lymphocyte ratio | 191 (122-241) | 144 (94-240) | 0.001 |
| SII | 1109 (720-2013) | 628 (396-720) | < 0.001 |
AF=atrial fibrillation; BMI=body mass index; CABG=coronary artery bypass grafting; COPD=chronic obstructive pulmonary disease; LVEF=left ventricular ejection fraction; SII=systemic immune-inflammation index; WBC=white blood cells