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Table 2 Significant correlations of PBR, MFI, and PPV with laboratory data and acute/critical illness scores

From: Association of sublingual microcirculation parameters and endothelial glycocalyx dimensions in resuscitated sepsis

Variable PBR MFI PPV
CCI (points) 0.39 (0.08 to 0.63)*
CRP (mg/dl) 0.54 (0.26 to 0.74)*** − 0.59 (− 0.76 to − 0.32)*** − 0.61 (− 0.78 to − 0.35)***
Heart rate (pulse/min) − 0.41 (− 0.64 to − 0.10)** − 0.46 (− 0.68 to − 0.16)**
IL-6 (ng/ml) 0.45 (0.14 to 0.68)**
MAP (mmHg) − 0.37 (− 0.62 to − 0.06)* 0.33 (0.01 to 0.58)*
PCT (ng/ml) 0.37 (0.37 to 0.62)*
SIRS score (points) 0.44 (0.14 to 0.67)** − 0.41 (− 0.65 to − 0.11)**
SOFA score (points) 0.44 (0.14 to 0.67)**
Total serum protein (g/dl) − 0.39 (− 0.64 to − 0.06)* 0.53 (0.23 to 0.73)*** 0.50 (0.20 to 0.72)**
  1. Spearman correlation was used
  2. CRP C-reactive protein, IL-6 interleukin-6, MAP mean arterial pressure, MFI microvascular flow index, PBR perfused boundary region 5–25 μm, PCT procalcitonin, PPV proportion of perfused vessels, SOFA score Sequential Organ Failure Assessment score
  3. *p < 0.05, **p < 0.01, ***p < 0.001