Number (% )

Mean age (years)

55.6

Sex

­ Men

50 (51.5)

­ Women

47 (48.5)

Comorbidities

­ hypertension

50 (51.1)

­ Diabetes

33 (34)

­ None

27 (27.8)

Number of comorbidities

­ 1:

38 (39.2)

­ 2:

24 (24.7)

­ 3:

7 (7.2)

­ 4:

41 (1)

Respiratory rate (cycle/min)

­ Mean

30.8 ± 7

­ <24

8 (8.2%)

­ 24 - 30

45 (46.4%)

­ >30

44 (45.4%)

SPO₂ (%)

­ Mean

83 ± 12.5

­ <90%

61 (62.9)

­ 90% - 95%

30 (30.9)

­ >95%

6 (6.2)

Blood gas (N = 43)

­ Respiratoryalkalosis

63%

­ Respiratoryacidosis

16%

­ Metabolicacidosis

13%

­ Metabolicalkalosis

5%

Chest CT scan (N = 86)

­ Mean:

51% ± 6%

­ <30%

18 (20.9%)

­ 30% - 60%

38 (44.2%)

­ >60%

30 (34.9%)

Signs of respiratory struggle

­ Presence of signs

56 (526%)

­ Absence of signs

41 (47.4%)