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. 2025 Mar 26;29:137. doi: 10.1186/s13054-025-05356-0

Table 2.

Comparison of macrocirculatory hemodynamic and tissue perfusion variables between 30-day survivors and 30-day non-survivors

Variable Overall (n = 118) 30-day survivors (n = 74) 30-day non-survivors (n = 44) p value*
Mean SAP (mmHg) 105 (96–114) 106 (97–120) 104 (91–112) 0.024
Mean MAP (mmHg) 72 (68–79) 74 (70–81) 70 (65–76) 0.010
Mean CO (L/min) 4.0 (3.3–4.8) [n = 114] 4.3 (3.4–5.2) [n = 71] 3.5 (3.0–4.3) [n = 43] 0.004
Mean CI (L/min/m2) 2.2 (1.8–2.5) [n = 117] 2.2 (1.9–2.7) [n = 73] 2.2 (1.7–2.4) 0.074
Mean CPI (W/m2) 0.4 (0.3–0.4) [n = 117] 0.4 (0.3–0.5) [n = 73] 0.3 (0.3–0.4) 0.027
Mean ScvO2 (mmHg/mL) 71 (64–77) [n = 115] 72 (64–77) [n = 72] 69 (64–76) [n = 43] 0.095
Mean ∆PCO2 (mmHg) 7.5 (5.8–9.4) [n = 114] 7.2 (5.7–8.5) [n = 71] 8.5 (6.5–11.7) [n = 43] 0.034
Mean ∆PCO2/C(a-v)O2 (mmHg/mL) 1.7 (1.2–2.3) [n = 113] 1.7 (1.1–2.1) [n = 71] 1.9 (1.5–2.6) [n = 42] 0.052
Mean arterial lactate (mmol/L) 2.8 (1.7–4.6) [n = 116] 2.2 (1.5–3.3) 4.5 (2.3–9.0) [n = 42]  < 0.0001

SAP: systolic arterial pressure; MAP: mean arterial pressure; CO: cardiac output; CI: cardiac index; CPI: cardiac power index; ScvO2: central venous oxygen saturation; P(v-a)CO2/C(a-v)O2 ratio: ratio of venous-arterial carbon dioxide tension difference to arterial-venous oxygen content difference (or ∆PCO2/C(a-v)O2)

Values are median (1st quartile–3rd quartile) for continuous variables and n (%) for categorical variables

*p value from Wilcoxon test for continuous variables and Fisher's exact test for categorical variables