Table 1.
Main characteristics of the study population
| Patient | Sex | Age (year) | BMI (kg/m2) | SOFA score | SAPS II score at ICU admissison | PaO2/FiO2 | Etiology of AHRF | Days since diagnosis of AHRF (no.) | Number of chest X-ray quadrants involved (no.) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | F | 85 | 21 | 6 | 33 | 273 | Trauma | 3 | 2 |
| 2 | F | 78 | 21 | 15 | 52 | 236 | Pneumonia | 1 | 1 |
| 3 | M | 82 | 29 | 9 | 42 | 229 | Septic Shock | 1 | 1 |
| 4 | F | 69 | 29 | 4 | 40 | 148 | Pneumonia | 1 | 2 |
| 5 | M | 70 | 24 | 5 | 46 | 221 | Pneumonia | 1 | 2 |
| 6 | F | 77 | 25 | 9 | 55 | 107 | Septic Shock | 1 | 1 |
| 7 | M | 52 | 26 | 3 | 20 | 106 | Pneumonia | 1 | 3 |
| 8 | M | 56 | 31 | 4 | 23 | 236 | Trauma | 5 | 2 |
| 9 | M | 40 | 24 | 3 | 22 | 206 | Pneumonia | 1 | 2 |
| 10 | M | 71 | 23 | 3 | 27 | 196 | Postoperative | 0 | 2 |
| 11 | M | 69 | 31 | 4 | 18 | 124 | Postoperative | 1 | 2 |
| 12 | M | 84 | 25 | 6 | 43 | 223 | Septic Shock | 1 | 4 |
| Median (IQR) |
8 M 4 F |
70 (62–80) | 25 (23–29) | 4 (3–7) | 36 (22–44) | 213 (136–232) |
Pulmonary: 5 Extra-pulmonary: 7 Infective: 7 Non-infective: 5 |
1 (1–1) | 2 (2–2) |
M, male; F, female; BMI, Body Mass Index; SOFA, sequential organ failure assessment; SAPS, simplified acute physiology score; AHRF, acute hypoxemic respiratory failure; PaO2/FiO2, arterial partial pressure of O2/inspired fraction of O2ratio; ICU, intensive care unit