Table 1.
Baseline study data.
| Parameter | Total n = 275 |
|---|---|
| Age (years), mean (SD) | 69.42 (9.59) |
| Male, n (%) | 152 (55.27) |
| Active smoker, n (%) | 102 (37.09) |
| Character of ECOPD | |
| Infectious, n (%) | 146 (53.09) |
| CRP (mg/l), median (IQR) | 10.88 (3.4–25.26) |
| WBC (× 103/μl), median (IQR) | 9.49 (7.77–12.24) |
| Eosinophils (× 103/μl), median (IQR) | 0.09 (0.02–0.19) |
| Lymphocytes (× 103/μl), median (IQR) | 1.6 (1–2.15) |
| Neutrophils (× 103/μl), median (IQR) | 6.7 (4.85–9.9) |
| NLR, median (IQR) | 3.19 (1.48–6.96) |
| Hemoglobin (g/dl), median (IQR) | 14 (12.8–15.15) |
| pH, median (IQR) | 7.42 (7.39–7.45) |
| pCO2 (mmHg), median (IQR) | 38.7 (35.25–45.28) |
| pO2 (mmHg), median (IQR) | 63 (55.4–72) |
| SaO2 (%), median (IQR) | 92.4 (89–94.88) |
| HCO3− (mEq/l), median (IQR) | 25.3 (23.45–28.1) |
| BE (mEq/l), median (IQR) | 1 (− 0.63 to 2.93) |
| Comorbidities | |
| Ischemic heart disease, n (%) | 86 (31.27) |
| AFa, n (%) | 31 (11.27) |
| Arrhythmia other than AFb, n (%) | 8 (2.91) |
| Congestive heart failure, n (%) | 116 (42.18) |
| Arterial hypertension, n (%) | 179 (65.09) |
| Type 2 diabetes, n (%) | 66 (24) |
| Others, n (%) | 152 (55.27) |
AF atrial fibrillation, CRP c-reactive protein, IQR interquartile range, WBC white blood count.
aFirst detected in the admission, paroxysmal, persistent or permanent.
bIn the admission or in the past medical history.