Table 1 Characteristics of COVID-19 patients (N = 28)

Anthropometric measures

Age

65 ± 10

Female sex, N (%)

8 (29)

BMI, kg/m²

28.8 ± 4.2

Comorbidities

 Smoke history, N (%)

14 (50)

 Hypertension, N (%)

19 (68)

 Diabetis mellitus, N (%)

6 (2)

 COPD, N (%)

0 (0)

 Congestive heart failure, N (%)

0 (0)

 Chronic kidney disease, N (%)

0 (0)

COVID-19 history

 Days from symptoms onset

9 ± 3

 Days from hospital admission

3 ± 5

 Days from oxygen support

3 ± 3

 Days from CPAP

1 ± 1

 Previous awake proning, N (%)

11 (39)

Parameters at enrolment

 SOFA score

3 ± 1

 CPAP (cmH₂O)

10 ± 1

 FiO₂

0.5 ± 0.1

 SpO₂

95 ± 5

 Respiratory rate (bpm)

24 ± 5

 WOB scale^a

3 ± 1

Laboratory data

 White blood cells (10⁹/L)

8.2 ± 3.2

 Hemoglobin (g/dL)

13.9 ± 1.5

 Platelet count (10³/mcL)

214 ± 80

 D dimer (ng/mL)

919 ± 487

 C-reactive protein (mg/L)

7.9 ± 5.1

 Creatinine (mg/dL)

0.9 ± 0.2

Outcome

 ICU admission, N (%)

9 (32)

 Endotracheal intubation, N (%)

8 (29)

 In hospital death, N (%)

6 (21)