Table 1.
Arterial blood gas test values in patients enrolled in the study, divided according to the median percentage of the extension of the pulmonary inflammatory process (14.3%).
| Parenchymal involvement < 14.2% | Parenchymal involvement > 14.2% | p | |
|---|---|---|---|
| Patients, n (%) | 40 (50.6) | 39 (49.4) | |
| Age, years, median (IQR) | 64 (57–74) | 72 (65–82) | 0.010 |
| Male, n (%) | 24 (60.0) | 31 (79.5) | 0.087 |
| Onset of symptoms, days (IQR) | 5 (2–10) | 5 (3–10) | 0.715 |
| Polycomorbidities | 15 (37.5) | 28 (71.8) | 0.003 |
| Arterial blood gas test | |||
| pH | 7.44 (7.42–7.49) | 7.45 (7.43–7.48) | 0.520 |
| PaO2 (mmHg) | 71.8 (62.5–80.8) | 62.9 (53.6–73) | 0.013 |
| PaCO2 (mmHg) | 35.9 (32.1–38) | 32.3 (31–36.8) | 0.080 |
| HCO3 | 24 (23.1–26.4) | 23.9 (21.5–26.6) | 0.430 |
| PaO2:FiO2 (mmHg) | 335 (293–365) | 250 (198–314) | <0.001 |
| SpO2 | 95.3 (94.3–97) | 92.8 (89.1–95.4) | 0.002 |
| Deaths within 28 days | 2 (5.0) | 7 (17.9) | 0.087 |