Table 1 Basal characteristics of the patients that accomplished the inclusion criteria
No atelectasis | Small atelectasis | Large atelectasis | Overall p-value | No atelectasis versus small atelectasis p-value | No atelectasis vs large atelectasis p-value | |
|---|---|---|---|---|---|---|
N (%) | 117 (75) | 30 (19) | 8 (6) | – | – | – |
Sex (%) | 0.36 | 0.37 | 0.68 | |||
Male | 85 (73) | 19 (63) | 7 (88) | |||
Women | 32 (27) | 11 (37) | 1 (12) | |||
Age (years) | 68.7 ± 13.9 | 68.4 ± 15.7 | 70 ± 14.2 | 0.98 | 0.95 | 0.83 |
BMI > 30 kg/m2 (%) | 23 (21) | 6 (20) | 0 (0) | 0.38 | 0.99 | 0.35 |
Women | 11 (48) | 3 (50) | – | |||
Men | 12 (52) | 3 (50) | – | |||
Days with symptoms until CT (days) | 18.0 ± 9.6 | 15.8 ± 10.8 | 17.6 ± 6.9 | 0.55 | 0.28 | 0.92 |
CURB-65 scale | 1 (1 to 2) | 1 (0 to 2) | 2 (2 to 2) | 0.1 | 0.12 | 0.35 |
Chest CT severity scale | 14 (8 to 17) | 11 (7 to 15) | 18 (12 to 21) | 0.02* | 0.01* | 0.29 |
Blood parameters | ||||||
D Dimer (ug/mL) | 2.7 (1.4 to 2.1) | 1.9 (0.8 to 3.3) | 3.8 (2.7 to 7.4) | 0.03* | 0.05 | 0.15 |
Fibrinogen (mg/dL) | 490 (321 to 624) | 452 (383 to 581) | 418 (324 to 478) | 0.47 | 0.85 | 0.22 |
Neutrophils (109/l) | 7.43 (4.37 to 9.98) | 5.94 (3.41 to 9.90) | 10.0 (6.05 to 13.0) | 0.15 | 0.21 | 0.17 |
IL—6 (pg/mL) | 24.6 (2.7 to 97.1) | 13.1 (4.5 to 30.7) | 20.6 (15.3 to 1497.0) | 0.35 | 0.24 | 0.51 |
SatO2/FiO2 | 357 (230 to 438) | 411 (331 to 453) | 182 (113 to 359) | 0.01* | 0.07 | 0.17 |
Type of ventilatory support (%) | ||||||
No ventilatory support | 17 (14) | 9 (30) | 0 (0) | – | – | – |
Nasal cannula | 44 (38) | 11 (37) | 1 (12) | |||
Reservoir mask | 33 (28) | 6 (20) | 1 (12) | |||
High flow nasal cannula | 5 (4) | 1 (3) | 0 (0) | |||
Non-invasive ventilation | 1 (1) | 1 (3) | 0 (0) | |||
Invasive mechanical ventilation | 17 (15) | 2 (7) | 6 (75) | |||
In-hospital mortality (n. %) | 13 (11) | 2 (7) | 1 (12) | 0.76 | 0.74 | 0.99 |