Table 2

Proportions of time within SpO2 ranges

OxygenieCLiO2 P value*
Time SpO2 within target range†80.2 (72.6–82.4)%68.5 (56.7–79.3)%0.005
Time SpO2 below target range14.7 (11.8–17.2)%9.3 (8.2–12.6)%0.020
Time SpO2 above target range‡6.3 (5.1–9.9)%15.9 (11.5–30.7)%0.001
SpO2 85%–90%12.6 (10.9–13.1)%8.5 (7.6–11.0)%0.020
SpO2 80%–84%1.2 (0.7–3.0)%0.8 (0.5–0.9)%0.003
SpO2 <80%0.5 (0.1–1.0)%0.2 (0.1–0.4)%0.061
SpO2 96%–98% while FiO2≥0.226.1 (5.0–9.5)%15.5 (10.9–27.4)%0.001
SpO2 >98% while FiO2≥0.220.2 (0.1–0.4)%1.4 (0.4–3.7)%0.001
  • Data in median (IQR)

  • *Wilcoxon matched pairs test.

  • †91% ≤SpO2 ≤95% or SpO2 ≥96% while FiO2=0.21.

  • ‡SpO2 ≥96% while FiO2 ≥0.22.