Skip to main content

Table 1 Characteristics of the study population at ICU admission

From: Lung response to prone positioning in mechanically-ventilated patients with COVID-19

Variable

Study population

N

15

Males (n [%])

11 (73)

Age (years)

69 (65–74)

Body mass index (BMI) (kg/m2)

29 (25–31)

Tidal volume (ml)

400 (400–435)

Tidal volume (ml/kg of PBW)

6.4 (6.0–7.1)

Respiratory rate (bpm)

18 (16–22)

PEEP (cmH2O)

12 (10–15)

FiO2 (%)

70 (60–88)

Minute ventilation (L/min)

7.6 (6.4–9.0)

Plateau airway pressure (cmH2O)

23 (18–25)

Driving airway pressure (cmH2O)

9 (7–12)

Compliance (ml/cmH2O)

49 (35–58)

Arterial pH

7.37 (7.31–7.40)

PaCO2 (mmHg)

55 (43–61)

PaO2 (mmHg)

83 (71–108)

PaO2:FiO2 (mmHg)

123 (91–139)

ICU length of stay (days)

20 (11–42)

Mortality in ICU (n [%])

6 (40)

  1. All data refer to the time of admission to our Intensive Care Unit (ICU), except for ICU length of stay and mortality in ICU. BMI—body mass index; PBW—predicted body weight; PEEP—positive end-expiratory pressure; FiO2—inspiratory fraction of oxygen; PaCO2—arterial tension of carbon dioxide; PaO2, arterial tension of oxygen. The driving airway pressure was the difference between the plateau airway pressure and total PEEP measured with a 5-s end-inspiratory and end-expiratory pause. The compliance was the ratio of the tidal volume to the driving airway pressure. Data are reported as median (Q1–Q3) or proportion