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Table 3 Hypotension and hypoxia in patients with decreased level of consciousness

From: Hypoxia and hypotension in patients intubated by physician staffed helicopter emergency medical services - a prospective observational multi-centre study

Patients

Trauma

Non-trauma

P-valuea

All patients

Missing data

510

100%

277

100%

787

100%

Hypoxiab

 Pre-intervention

63

15%

55

23%

0.23

118

18%

118

15%

 Post-intervention

17

4%

13

5%

0.37

30

4%

56

7%

 Admission to hospital

7

2%

3

1%

0.19

10

1%

83

11%

Hypotensionc

 Pre-intervention

48

11%

27

11%

0.63

75

11%

88

11%

 Post-intervention

55

11%

28

11%

0.44

83

11%

38

5%

 Admission to hospital

34

7%

17

7%

0.20

51

7%

77

10%

  1. The reported rates are marginal rates
  2. aBased on Cochran–Mantel–Haenszel chi-squared tests
  3. bHypoxia was defined as oxygen saturation (SpO2) < 90%
  4. cHypotension was defined as systolic blood pressure (SBP) < 90 mmHg