Table 1 Characteristics of the study population

Number of patients

51

Patient’s characteristics

 Male/female (%)

53/47

 Age (months)

3.5 (1.7–13.3)

  < 12 months (%)

74.5

  12–24 months (%)

3.9

  > 48 months (%)

21.6

 Weight (kg)

6.0 (4.5–9.3)

PRISM II (24h) score

 Pulmonary admission diagnosis (%)

86.3

 PARDS (%)

80.4

  Mild (%)

14.6

  Moderate (%)

61.0

  Severe (%)

24.4

 Duration of MV (days)

6.6 (4.9–10.6)

 Mortality (%)

2.0

Ventilation characteristics on CMV

 PIP (cmH₂O)

31 (30–34)

 PEEP (cmH₂O)

8 (6–9)

 FiO₂

0.5 (0.4–0.8)

 SpO₂/FiO₂ ratio on CMV

190 (121–243)

 OI on CMV

10.3 (8.3–16.1)

 pH on CMV

7.30 (7.23–7.35)

 pCO₂ on CMV (mmHg)

59 (53–64)

Ventilation characteristics on HFOV

 CDP start

20 (18–22)

 CDP max

34 (32–37)

 CDP end

26 (24–28)