Table 3 Comparison of analytical values according to ROSC and neurological recovery CPC I-II (univariate analysis)

ROSC

Patients with ROSC

Patients without ROSC

OR (CI95%)

p

pH

7.129 ± 0.167

7.109 ± 0.177

0.508 (0.282–0.914)

0.024

pCO₂ (mmHg)

69.92 ± 26.16

73.70 ± 28.48

1.005 (1.001–1.009)

0.007

HCO₃⁻ (mmol/l)

22.55 ± 4.73

22.31 ± 4.84

0.990 (0.969–1.011)

0.328

BE (mmol/l)

− 6.66 ± 7.12

− 7.35 ± 7.44

0.988 (0.974–1.002)

0.089

Lactate (mmol/l)

7.23 ± 11.72

7.21 ± 8.42

1.00 (0.990–1.010)

0.964

K⁺ (mmol/l)

4.22 ± 1.01

4.55 ± 1.28

1.293 (1.180–1.416)

0.001

Na⁺ (mmol/l)

138.53 ± 12.97

139.57 ± 8.04

1.010 (0.999–1.021)

0.083

Ca⁺⁺ (mmol/l)

1.34 ± 4.48

1.17 ± 0.21

0.580 (0.347–0.971)

0.038

CPC I-II

Patients with CPC I-II

Patients without CPC I-II

OR (CI95%)

p

pH

7.196 ± 0.147

7.096 ± 0.172

0.017 (0.08–0.040)

< 0.001

pCO₂ (mmHg)

60.72 ± 22.42

75.02 ± 27.71

1.027 (1.021–1.033)

< 0.001

HCO₃⁻ (mmol/l)

22.97 ± 4.19

22.29 ± 4.94

0.970 (0.947–0.994)

0.015

BE (mmol/l)

− 5.15 ± 6.08

− 7.54 ± 7.52

0.948 (0.930–0.966)

< 0.001

Lactate (mmol/l)

7.11 ± 17.63

7.26 ± 6.63

1.002 (0.989–1.014)

0.804

K⁺ (mmol/l)

3.95 ± 0.79

4.49 ± 1.21

1.725 (1.506–1.977)

< 0.001

Na⁺ (mmol/l)

139.20 ± 12.67

138.88 ± 10.68

0.997 (0.986–1.008)

0.620

Ca⁺⁺ (mmol/l)

1.55 ± 6.88

1.18 ± 0.23

0.712 (0.431–1.175)

0.183