Skip to main content

Table 2 Characteristics of COVID-19 patients after intubation

From: Early intubation and decreased in-hospital mortality in patients with coronavirus disease 2019

 

Early intubation

Non-early intubation

Standardized difference

Arterial blood gas assay

   

 P/F ratio, median (IQR)

195 (167–299)

159 (132–211)

0.654

 PaO2, mm Hg, median (IQR)

120 (94–156)

96 (77–137)

0.233

 pH, median (IQR)

7.37 (7.33–7.41)

7.36 (7.31–7.41)

0.000

 PaCO2, mm Hg, median (IQR)

40 (38–42)

43 (37–48)

0.483

 Lactate, ≥ 2 mmol/L, n (%)

17 (4.6%)

24 (7.1%)

0.108

MV setting, median (IQR)

   

 FiO2

0.5 (0.5–0.7)

0.6 (0.5–1.0)

0.509

 Tidal volume, mL

450 (400–480)

430 (380–500)

0.012

 Respiratory rate, breaths/min

18 (15–20)

16 (15–20)

0.196

MV measurements, median (IQR)

   

 Peak inspiratory pressure, cmH2O

23 (20–24)

24 (21–27)

0.437

 Mean inspiratory pressure, cmH2O

14 (11–15)

14 (12–16)

0.130

  1. The numbers in the table were adjusted by weighing with propensity scores
  2. COVID-19 coronavirus disease 2019, IQR interquartile range, P/F PaO2/FiO2, PaO2 partial pressure of oxygen, PaCO2 partial pressure of carbon dioxide, FiO2 fraction of inspired oxygen, MV mechanical ventilation