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Table 1 Patients’ main characteristics

From: Unmatched ventilation and perfusion measured by electrical impedance tomography predicts the outcome of ARDS

Age, years

58 ± 15

Female, no. (%)

12 (24)

BMI, Kg/m2

26.5 ± 4.6

SAPSII at ICU admission

42 ± 13

Infectious/non-infectious ARDS, no. (%)

35 (70)/15 (30)

Pulmonary/extrapulmonary ARDS, no. (%)

24 (48)/26 (52)

PaO2/FiO2, mmHg

168 [122–236]

Mechanical ventilation settings

 

PEEP, cmH2O

Vt, ml/kg PBW

Driving pressure, cmH2O

Plateau pressure, cmH2O

Respiratory rate, bpm

11 [8–15]

6.9 ± 1.7

11 [8–14]

23 [19–26]

16 [14–22]

Days of IMV before the study day, no

2 ± 4

Non-survivors, no. (%)

13 (26%)

  1. BMI, body mass index; SAPSII, Simplified Acute Physiology Score II; PaO2, arterial oxygen tension; FiO2, fraction of inspired oxygen; PEEP, positive end-expiratory pressure; Vt, tidal volume; PBW, predicted body weight; IMV, invasive mechanical ventilation