Table 3. Comparison of the areas under the ROC curves for predicting MFI ≤2.0.

Parameters	ROC area	95% CI	Cut-off value	Specificity (%)	Sensitivity (%)
MAP (mmHg)	0.629	0.444–0.790	75	55	69.23
CO (L/min/m2)	0.560	0.377–0.731	3.9	55	69.23
CVP (mmHg)	0.767	0.588–0.896	23	100	61.54
MSFP (mmHg)	0.758	0.578–0.889	29	95	61.54

MAP, mean arterial pressure; CO, cardiac output; CVP, central venous pressure; MSFP, mean systemic filling pressure; ROC, operating characteristic curve; MFI, microcirculatory flow index.