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Table 3 Data on oxygen tension analyses in the post cardiac arrest period

From: Associations between partial pressure of oxygen and neurological outcome in out-of-hospital cardiac arrest patients: an explorative analysis of a randomized trial

Variable

All patients

n = 869

Hyperoxemia

n = 199

Normoxemia

n = 569

Hypoxemia

n = 112

Hyper- and hypoxemia

n = 11

TWM-PaO2

14.0 (12.2–16.2)

15.9 (14.1–18.2)

13.8 (12.2–15.6)

12.2 (10.7–14.0)

13.90 (12.7–15.3)

TWM-PaCO2

5.3 (4.9–5.7)

5.3 (4.9–5.7)

5.3 (4.9–5.7)

5.4 (5.0–6.0)

5.4 (5.2–5.6)

PaO2 T-1

19.0 (12.1–33.8)

52.7 (42.7–61.4)

16.9 (12.1–24.5)

9.6 (7.3–15.5)

37.8 (20.3–49.8)

PaO2 T0

17.1 (11.8–25.7)

38.8 (21.2–52.9)

16.0 (11.8–22.0)

11.1 (8.4–16.5)

41.5 (22.0–52.2)

PaO2 T4

15.2 (12.2–19.7)

16.5 (13.1–21.3)

15.1 (12.4–19.6)

12.4 (9.8–17.1)

14.6 (11.1–17.8)

PaO2 T12

13.2 (11.3–16.2)

13.7 (11.5–16.6)

13.2 (11.3–16.3)

12.0 (10.3–14.9)

11.7 (9.6–14.9)

PaO2 T20

12.7 (11.0–15.1)

12.9 (11.3–15.5)

12.7 (11.0–15.0)

12.1 (10.2–14.5)

12.1 (10.0–15.0)

PaO2 T28

11.9 (10.5–14.2)

12.0 (10.4–13.9)

12.2 (10.7–14.4)

10.9 (9.7–13.5)

10.9 (9.8–12.8)

PaO2 T32

11.7 (10.4–13.7)

11.7 (10.3–13.7)

11.9 (10.6–13.8)

10.8 (9.4–12.3)

9.8 (8.2–11.4)

PaO2 T36

11.3 (10.2–13.5)

11.4 (10.2–13.5)

11.5 (10.3–13.7)

10.4 (8.9–11.8)

9.2 (8.3–10.6)

TWM pH

7.35 (7.31–7.39)

7.35 (7.32–7.39)

7.35 (7.31–7.39)

7.33 (7.28–7.37)

7.35 (7.31–7.39)

TWM PAW

12.5 (10.3–16.6)

12.6 (10.3–15.6)

12.6 (10.2–16.9)

11.9 (10.5–15.4)

12.9 (11.1–14.2)

TWM- BE

− 3.5 (−5.7 to − 1.5)

− 3.6 (− 5.9 to − 1.6)

− 3.6 (− 5.8 to − 1.5)

− 3.2 (− 5.2 to − 1.5)

− 3.65 (− 5.3 to − 2.2)

TWM-FiO2%

41.4 (34.9–49.7)

39.2 (33.8–45.0)

41.4 (34.7–49.4)

47.9 (39.0–59.3)

40.1 (34.3–50.6)

TWM-PaO2/FiO2

35.1 (26.8–43.8)

42.2 (34.2–50.0)

34.1 (26.8–42.3)

26.8 (20.4–34.7)

34.4 (27.2–43.3)

  1. PaO2 arterial partial pressure of oxygen, PaCO2 arterial partial pressure of carbon dioxide. PaO2 and PaCO2 are displayed in kilopascal (kPa). Hyperoxemia PaO2 > 40 kPa, Hypoxemia PaO2 < 8 kPa, Normoxemia PaO2 values not defined hyper- or hypoxemia. TWM time weighted mean, PAW airway pressure, BE base excess, FiO2 fraction of inspired oxygen. Values are median with interquartile ranges (IQR). Patients exposed to hyper- and hypoxemia are also included in the separate hyperoxemia and hypoxemia exposure groups. T measuring time point in hours after inclusion into the TTM trial, T-1 first blood gas analysis after admission but before inclusion
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