Table 3 all BGA variables in patients reaching the pre-defined endpoints as opposed to subjects that did not

BGA variable

Endpoint

p-value

survival

death

Admission venous pH

7.34 ± 0.01

7.27 ± 0.04

0.4

Admission venous pCO₂ (mmHg)

39.7 ± 1.2

38.5 ± 2.3

0.49

Admission venous bicarbonate (mMol/L)

21.4 ± 0.8

18.8 ± 1.5

0.24

Venous pH at AKI onset

7.33 ± 0.01

7.2 ± 0.05

0.037

Venous pCO₂ at AKI onset (mmHg)

39.4 ± 1.4

38.7 ± 2.9

0.8

Venous bicarbonate at AKI onset (mMol/L)

21.2 ± 0.9

16.3 ± 1.6

0.04

Admission arterial pH

7.36 ± 0.01

7.22 ± 0.04

0.003

Admission arterial pCO₂ (mmHg)

35.5 ± 1.2

44.8 ± 3.1

0.03

Admission arterial bicarbonate (mMol/L)

20.2 ± 0.8

19.1 ± 1.3

0.64

Arterial pH at AKI onset

7.34 ± 0.01

7.24 ± 0.02

0.002

Arterial pCO₂ at AKI onset (mmHg)

37.6 ± 1.1

46.8 ± 2.3

 < 0.001

Arterial bicarbonate at AKI onset (mMol/L)

20.2 ± 0.6

20.4 ± 1.1

0.64

no KRT

KRT

Admission venous pH

7.34 ± 0.01

7.24 ± 0.05

0.25

Admission venous pCO₂ (mmHg)

39.9 ± 1.3

35.9 ± 2.2

0.16

Admission venous bicarbonate (mMol/L)

21.7 ± 0.7

17.3 ± 1.7

0.049

Venous pH at AKI onset

7.31 ± 0.02

7.25 ± 0.05

0.64

Venous pCO₂ at AKI onset (mmHg)

41.2 ± 1.4

34.2 ± 2.1

0.02

Venous bicarbonate at AKI onset (mMol/L)

20.8 ± 0.9

17.1 ± 1.7

0.12

Admission arterial pH

7.33 ± 0.01

7.26 ± 0.05

0.18

Admission arterial pCO₂ (mmHg)

38.7 ± 1.6

38.4 ± 3.5

0.72

Admission arterial bicarbonate (mMol/L)

20.2 ± 0.7

18.4 ± 1.9

0.7

Arterial pH at AKI onset

7.31 ± 0.01

7.26 ± 0.03

0.08

Arterial pCO₂ at AKI onset (mmHg)

41.8 ± 1.4

41 ± 2.6

0.85

Arterial bicarbonate at AKI onset (mMol/L)

20.7 ± 0.6

19 ± 1.5

0.35

complete ROKF

incomplete ROKF

no ROKF

Admission venous pH

7.34 ± 0.03

7.3 ± 0.01

7.37 ± 0.02

0.05

Admission venous pCO₂ (mmHg)

41.7 ± 2.2

39.6 ± 1.9

37.6 ± 2.8

0.44

Admission venous bicarbonate (mMol/L)

22.5 ± 1.5

19.5 ± 1.1

21.3 ± 1.8

0.33

Venous pH at AKI onset

7.38 ± 0.02

7.25 ± 0.02

7.34 ± 0.03

0.004

Venous pCO₂ at AKI onset (mmHg)

39.2 ± 2.1

39.4 ± 2.7

39.3 ± 2.3

0.95

Venous bicarbonate at AKI onset (mMol/L)

23 ± 1.3

17.7 ± 1.4

21.9 ± 1.8

0.07

Admission arterial pH

7.36 ± 0.02

7.33 ± 0.03

7.38 ± 0.01

0.55

Admission arterial pCO₂ (mmHg)

37.6 ± 1.9

33.9 ± 3.4

32.6 ± 1.2

0.33

Admission arterial bicarbonate (mMol/L)

21.4 ± 1.3

18.1 ± 1.9

19.4 ± 1

0.32

Arterial pH at AKI onset

7.32 ± 0.02

7.35 ± 0.02

7.35 ± 0.01

0.56

Arterial pCO₂ at AKI onset (mmHg)

40.4 ± 1.7

33.8 ± 1.8

36.9 ± 2

0.12

Arterial bicarbonate at AKI onset (mMol/L)

20.8 ± 1

17.9 ± 1.4

20.3 ± 1.2

0.34